Office (OLE) malware analysis — malicious · 3cd560fe6e00b73b

MALICIOUS

Office (OLE)

80.2 KB Created: 2018-10-04 23:56:00 Authoring application: Microsoft Office Word First seen: 2019-02-04

MD5: ab344d054475d90023dc22d0974f6b8d SHA-1: a20babd801730516c3e961113b28ef86d9c45dc5 SHA-256: 3cd560fe6e00b73b0617d8bce0038416643ae99d2ceefa5633ac112c8dd93282

104 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file is an OLE document that triggered a critical ClamAV detection. A VBA p-code auto-execution heuristic indicates that the Document_Open macro attempts to execute a shell command. Although VBA macros could not be directly extracted due to an unsupported format, the presence of auto-execution and shell execution tokens strongly suggests a malicious macro is present and attempting to run.

Heuristics 4

ClamAV: Doc.Malware.00536d-6923012-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.00536d-6923012-0
VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC

Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
Unsupported Office format for VBA extraction info OFFICE_FORMAT_UNSUPPORTED

olevba could not extract VBA macros (AssertionError); format-agnostic byte-level scans still ran. Likely legacy, encrypted, or malformed OLE/OOXML — re-scanning the same bytes will yield the same outcome.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.

URL http://schemas.openxmlformats.org/drawingml/2006/main In document text (OLE body)

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