Office (OLE) / .DOC malware analysis — malicious · 599464ea222d3dcf

MALICIOUS

Office (OLE) / .DOC

629.0 KB Created: 2021-10-12 17:39:00 Authoring application: Microsoft Office Word

MD5: d6b4bb4540d22a6973893d580b4b7ca7 SHA-1: e2e6d170ebc41387732b3febf2302d31daf07189 SHA-256: 599464ea222d3dcfb52b46f2c59c87c68c0ffd81f22f1cf5f1c9b0c4ae2ea22a

182 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1105 Ingress Tool Transfer

The Document_Open VBA macro is configured to execute automatically. It reconstructs a command line to download a second-stage executable from 'http://18.195.143.183/7/7/IMG_11502772017866.exe' and save it as 'C:\Users\Public\Documents\throwboy.exe'. The macro then uses 'CreateObject("shell.application").Open(...)' to execute the downloaded file.

Heuristics 6

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` `8a43360f9a98df288c61b8ef696af0bf1957ed3ce899fa51ed51b14bfa6c1f93`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	893 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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