Office (OLE) / .DOCX malware analysis — malicious · a42fb0237d91d366

MALICIOUS

Office (OLE) / .DOCX

181.5 KB Created: 2020-10-22 12:14:00 Authoring application: Microsoft Office Word

MD5: f0344589e530ca6e9d52b267aab16d20 SHA-1: d0161021aa2f6ea75f5efb9edcc6f0f56d1fd083 SHA-256: a42fb0237d91d3669d3ddb1353e2c6a57f0f1d8ee8fce0bbd1f9d78c709f3820

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The critical ClamAV heuristic identifies this file as Doc.Downloader.Logan-9781905-0, a known downloader. The presence of a Document_Open macro, CreateObject calls, and VBA p-code auto-execution strongly indicates that the macro is designed to download and execute a second-stage payload. The obfuscated document body content does not provide further clues about the specific lure, but the technical indicators are clear.

Heuristics 7

ClamAV: Doc.Downloader.Logan-9781905-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Logan-9781905-0
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.
Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
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` `312ef617e63493e61b3bcd46b3231fa9b7aec5a75b005f32edf123ee68ffccb7`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	18806 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.

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