Office (OLE) / .DOCX malware analysis — malicious · 6799880cef986cee

MALICIOUS

Office (OLE) / .DOCX

156.8 KB Created: 2020-10-19 16:24:00 Authoring application: Microsoft Office Word

MD5: 540b015fa2070f55d70fc88c8e4fcac3 SHA-1: 7a971fc28cfdb57df649696f42731f4d39af9cb0 SHA-256: 6799880cef986ceeddb6f0c07efe02d834e71eee4e175eba087804cb4318392b

202 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a strong indicator of malicious intent. The macro utilizes CreateObject, a common technique for launching malicious payloads. The ClamAV detection further supports the malicious classification. The obfuscated nature of the VBA script prevents a detailed analysis of its specific actions, but the presence of these indicators suggests it is designed to download and execute a secondary payload.

Heuristics 6

ClamAV: Doc.Malware.Sagent-9780539-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Sagent-9780539-0
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` `d0a6497cb07b10e3700967f3bfacfd7398ab919e1393e4e1ddda61d0b30c3f61`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15475 bytes

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