Win.Trojan.Hassle-1 — Office (OLE) malware analysis

Static analysis result for SHA-256 d56a815b71825576…

MALICIOUS

Office (OLE)

21.0 KB Created: 1996-09-02 15:49:00 Authoring application: Microsoft Word 6.0 First seen: 2015-09-21
MD5: 4a2ac5685e0bd304136b9169769d3670 SHA-1: 552ec54155e3abbf96b7903c6ee5f2a6b6f1e47d SHA-256: d56a815b718255764c7b9779ff8d12298b6f11403c1daf5d61c41f9a7e45b7bc
100 Risk Score

Malware Insights

Win.Trojan.Hassle-1 · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic

The sample was detected as Win.Trojan.Hassle-1 by ClamAV. Static analysis revealed legacy WordBasic macro virus markers, specifically 'ToolsMacro', indicating the presence of a macro designed to execute malicious actions. The document body itself appears to be a legitimate-looking project requirements document, likely serving as a lure.

Heuristics 2

  • ClamAV: Win.Trojan.Hassle-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Hassle-1
  • Legacy WordBasic macro-virus markers high OLE_LEGACY_WORDBASIC_MACRO_VIRUS
    OLE Word document contains legacy WordBasic auto-execution macro markers such as AutoOpen plus ToolsMacro/MacroFile/fileMacro/globMacro or named historical macro-virus strings. These old Word 6/95 macro forms are not exposed as a modern VBA project, so normal VBA source extraction can miss them.

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