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M2M - Dridex 2017-11-14 : botnet 7200 : "Invoice No. 123456" - "Invoice-123456-06.doc"

Low
Published: Fri Nov 17 2017 (11/17/2017, 00:00:00 UTC)
Source: CIRCL
Vendor/Project: tlp
Product: white

Description

M2M - Dridex 2017-11-14 : botnet 7200 : "Invoice No. 123456" - "Invoice-123456-06.doc"

AI-Powered Analysis

AILast updated: 06/18/2025, 19:47:14 UTC

Technical Analysis

The threat described pertains to a botnet activity linked to the Dridex malware family, specifically identified on November 14, 2017, associated with botnet ID 7200. Dridex is a well-known banking Trojan primarily designed to steal banking credentials and facilitate financial fraud. The reference to "Invoice No. 123456" and the document name "Invoice-123456-06.doc" suggests that the infection vector involves malicious Microsoft Word documents masquerading as legitimate invoices. These documents likely contain embedded macros or exploit vulnerabilities to execute the Dridex payload once opened by the victim. The botnet infrastructure enables the malware to coordinate infected machines for various malicious activities, including credential theft, spamming, and potentially distributing additional malware. The technical details indicate a low threat level (3 on an unspecified scale) and low severity, with no known exploits in the wild at the time of reporting, which may reflect limited active exploitation or detection at that moment. However, Dridex historically has been a significant threat due to its financial impact and persistence. The lack of affected versions and patch links suggests this is not a vulnerability in a software product but rather a malware campaign leveraging social engineering and document-based infection vectors. The absence of indicators limits the ability to perform direct detection or attribution from this report alone.

Potential Impact

For European organizations, the primary impact of this Dridex botnet campaign lies in the potential compromise of financial credentials and sensitive corporate information. Successful infections can lead to unauthorized access to banking accounts, resulting in financial theft and fraud. Additionally, infected systems may be co-opted into the botnet, contributing to further propagation of malware and spam campaigns, which can degrade network performance and increase the risk of secondary infections. Organizations in sectors with high volumes of invoice processing, such as manufacturing, logistics, and professional services, are particularly at risk due to the use of invoice-themed malicious documents. The reputational damage and financial losses from such intrusions can be substantial. Moreover, the persistence of Dridex infections can complicate incident response and recovery efforts. Although the severity is currently assessed as low, the evolving nature of Dridex campaigns means that European entities should remain vigilant, especially given the historical targeting of European financial institutions by this malware family.

Mitigation Recommendations

To mitigate this threat effectively, European organizations should implement targeted controls beyond generic advice: 1) Deploy advanced email filtering solutions that specifically scan for and quarantine documents with suspicious invoice-related naming conventions and embedded macros. 2) Enforce strict macro policies in Microsoft Office applications, disabling macros by default and only allowing digitally signed macros from trusted sources. 3) Conduct regular user awareness training focusing on the risks of opening unsolicited invoice attachments and recognizing social engineering tactics used in phishing campaigns. 4) Implement endpoint detection and response (EDR) tools capable of identifying Dridex behaviors such as unusual network connections to known command and control servers or anomalous process executions. 5) Maintain up-to-date threat intelligence feeds to detect emerging Dridex indicators and adjust defenses accordingly. 6) Segment networks to limit lateral movement if an infection occurs, and ensure robust backup and recovery procedures are in place to restore systems without paying ransoms or succumbing to data loss. 7) Collaborate with financial institutions to monitor for suspicious transactions that may indicate credential compromise.

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Technical Details

Threat Level
3
Analysis
1
Uuid
5a0f0fb1-0b54-4ace-bb7b-429f950d210f
Original Timestamp
1510937171

Indicators of Compromise

Hash

ValueDescriptionCopy
hashd2e6d34475fcba320609b1eb58884525
hash39c49f6d1d7636698f7b1da3f7528798ed4c72d4ba2fb836abfe36cb26b77a0d
- Xchecked via VT: d2e6d34475fcba320609b1eb58884525
hashf5b6fe51750881f14dfe112c3fe6c90afedb7191
- Xchecked via VT: d2e6d34475fcba320609b1eb58884525

Url

ValueDescriptionCopy
urlhttp://axtes.com/jhvgRg5
urlhttp://palimpsesto-technologies.es/jhvgRg5
urlhttp://test136.siteholder.ru/jhvgRg5
urlhttp://ticketstekoop.nl/jhvgRg5
urlhttp://vonmammen.org/jhvgRg5

Domain

ValueDescriptionCopy
domainaxtes.com
domainpalimpsesto-technologies.es
domaintest136.siteholder.ru
domainticketstekoop.nl
domainvonmammen.org

Ip

ValueDescriptionCopy
ip91.121.231.19
axtes.com
ip91.121.73.99
palimpsesto-technologies.es
ip212.220.124.238
test136.siteholder.ru
ip80.73.131.181
ticketstekoop.nl
ip162.208.89.62
vonmammen.org
ip185.180.198.147
ip80.188.120.11
ip178.18.125.1
ip205.178.137.221

Link

ValueDescriptionCopy
linkhttps://www.virustotal.com/file/39c49f6d1d7636698f7b1da3f7528798ed4c72d4ba2fb836abfe36cb26b77a0d/analysis/1510911159/
- Xchecked via VT: d2e6d34475fcba320609b1eb58884525

Threat ID: 682b81088ee1a77b717bdbca

Added to database: 5/19/2025, 7:05:44 PM

Last enriched: 6/18/2025, 7:47:14 PM

Last updated: 8/17/2025, 2:10:49 AM

Views: 12

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