Office (OLE) / .DOCX malware analysis — malicious · 0ff52caeb6c47e92

MALICIOUS

Office (OLE) / .DOCX

157.0 KB Created: 2020-10-19 11:46:00 Authoring application: Microsoft Office Word

MD5: c2399489f1a6baec7478f87f4f7fbea4 SHA-1: 977246cd54604b1df516f7f11d3bbdc50f3ce06e SHA-256: 0ff52caeb6c47e929cd9ed98195f7568848e6e5639e84066b3c9cd90f3d7eaf0

202 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample contains a VBA macro with a Document_Open auto-execution function, indicating malicious intent upon opening. The macro employs obfuscation and uses CreateObject, suggesting it attempts to download and execute a secondary payload. The ClamAV detection further confirms its malicious nature.

Heuristics 6

ClamAV: Doc.Trojan.Agent-9780503-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Agent-9780503-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
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.
VBA macros detected medium OLE_VBA_MACROS

Document contains VBA macro code
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

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `df3f11a486897c7a189da6e4d0ac7fa240cbe9ec205152865e455c6dee8f09c5`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15642 bytes

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