Office (OLE) / .DOC malware analysis — malicious · aa1bbdd4fadaf9d9

MALICIOUS

Office (OLE) / .DOC

29.5 KB Created: 2021-06-10 09:18:00 Authoring application: Microsoft Office Word

MD5: 3eca002375734d7f711cd7219102b5d5 SHA-1: 2708c307bd7b13afe58589e7b4d9fafb20597436 SHA-256: aa1bbdd4fadaf9d9a9ffb03ac03a93530e2614c921c6acc49b33b80c33c0b59d

222 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The sample is a malicious OLE document containing VBA macros. The 'Document_Open' macro is configured to execute automatically upon opening, and it uses 'CreateObject' to likely download and execute a payload from the embedded URL. The presence of 'WScript' references further supports the execution of scripts.

Heuristics 7

Reference to Windows Script Host high SC_STR_WSCRIPT

Reference to Windows Script Host
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 — context-specific rules above attribute URLs they actually evaluated; this rule lists URLs that were present in the bytes but were not otherwise tied to a specific finding.
URL http://31.210.20.45/1xBet/Corf4olpp3.ex
- http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `6b96d5f6c5352aba4ad33ee4c731aa572b421720d70175a6d1015c4c26303585`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	828 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 8 Chr/ChrW string-construction calls. Carved macro source contains an auto-exec entry point and execution/download terms.

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