Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 7b6429c845cdf97c…

MALICIOUS

Office (OLE)

706.5 KB Created: 2012-10-27 09:03:02 Authoring application: Microsoft Excel First seen: 2015-09-17
MD5: 1c4901f139ad17fb23c08978aa9ae100 SHA-1: d90acda8f3604b845a06a9155242d92a0647f347 SHA-256: 7b6429c845cdf97c47bdb19d88f0c638939eb3c089e696a56d93b7eb04fff053
60 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The file is identified as a legacy Excel formula macro virus, specifically referencing 'Poppy by VicodinES' and 'Narkotic Network'. The presence of these markers suggests the file is designed to execute malicious formulas, likely for data exfiltration or further system compromise. The document body contains what appears to be a Vietnamese student roster, which may serve as a lure.

Heuristics 1

  • Legacy Excel formula macro virus marker critical OLE_XLS_FORMULA_MACRO_VIRUS
    Workbook stream contains self-identifying legacy Excel formula macro virus markers. This indicates the document carries formula macro virus content even when no VBA project or modern XLM macro-sheet structure is present.

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