Office (OLE) malware analysis — malicious · e4304abbbca40df5

MALICIOUS

Office (OLE)

75.6 KB Created: 2018-11-07 16:48:00 Authoring application: Microsoft Office Word First seen: 2019-01-11

MD5: 1725ce6627632ce6cf572c682a7b7a26 SHA-1: a48f0cb7135b683fdf4a7caab67189f521e24176 SHA-256: e4304abbbca40df5da286bb4affb8188df9f194c643ba32ec8d97f00ae3bf9be

82 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1059.003 Windows Command Shell

The sample contains a heavily obfuscated PowerShell command embedded within the document body. This command utilizes decompression and base64 decoding to execute further commands, likely to download and run a second-stage payload. The presence of PowerShell and command shell execution heuristics indicates a clear intent to execute arbitrary code.

Heuristics 3

Reference to PowerShell high SC_STR_POWERSHELL

Reference to PowerShell
LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND

Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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