Office (OLE) / .DOCX malware analysis — malicious · b9745ad5da055a58

MALICIOUS

Office (OLE) / .DOCX

194.5 KB Created: 2020-10-22 20:29:00 Authoring application: Microsoft Office Word

MD5: 06a56fc1222ef97bda415e6072739863 SHA-1: 520c7892980805b76293de3b8b48250807e380a6 SHA-256: b9745ad5da055a585ba0ae73db8e019aedbccbe23904d104d0ba10bb4bbd2668

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The file contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for initiating malicious actions upon opening the document. The ClamAV detection as 'Doc.Downloader.Logan-9781905-0' strongly suggests its role as a downloader. The presence of CreateObject calls further indicates the potential for executing arbitrary code or downloading additional payloads. No specific URLs or external hosts were identified as malicious in the provided evidence.

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` `9ca879422c3203043eb02bf7332bfccca42d062c85606acaa47b14db718d1f57`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	22796 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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