Office (OLE) / .DOC malware analysis — malicious · f1dc33e09514f2a4

MALICIOUS

Office (OLE) / .DOC

133.0 KB Created: 2020-03-12 14:17:00 Authoring application: Microsoft Office Word

MD5: 9e24c1b9e35b3ab383c19d4c150f1436 SHA-1: c3d8bd661fd2ea7db9848fcc3d564c26f29677d8 SHA-256: f1dc33e09514f2a4b5609c11ae59a96eebd1d06386500862222495818fcf60e0

202 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The file contains VBA macros, specifically a Document_Open macro that utilizes GetObject, indicating an attempt to execute code automatically. ClamAV detection as 'Doc.Downloader.Sagent-7643873-0' strongly suggests its malicious nature as a downloader. The presence of a large encoded blob and a macros.bas file further supports the analysis of macro-based execution for downloading additional payloads.

Heuristics 7

ClamAV: Doc.Downloader.Sagent-7643873-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Sagent-7643873-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
GetObject call high OLE_VBA_GETOBJ

GetObject 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
Suspicious extracted artifact info 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.
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` `038c8751f5ad44f74e8b63696596f31615da8fba8999927f5616112cb293f272`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	50240 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 long base64-like blob(s).

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