Office (OLE) / .DOC malware analysis — malicious · 1c4aa8f85cddd0ab

MALICIOUS

Office (OLE) / .DOC

126.5 KB Created: 2020-03-15 22:27:00 Authoring application: Microsoft Office Word

MD5: 4bf29800f489501d6bf0a6cf663835cd SHA-1: 28358d48c0cda4920db6eca2237c78ee92bb9ee6 SHA-256: 1c4aa8f85cddd0abed11783096da8a92b79293962d51afee8feda3ba498795f2

222 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.005 Visual Basic T1059.001 PowerShell

The sample is a malicious DOC file containing VBA macros. The document body is formatted as a court filing form, with repeated prompts to 'enable macros' or 'enable editing' to obtain information. Heuristics indicate the presence of a Document_Open macro that uses GetObject, a common technique for executing malicious code. The embedded URL http://www.firstlegal.com is likely part of the lure. The macro's primary function is to execute malicious code, likely to download and run a second-stage payload.

Heuristics 8

ClamAV: Xls.Malware.Generic-7646516-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Xls.Malware.Generic-7646516-0
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
Macro/content-enable lure medium SE_ENABLE_LURE

Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
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://www.firstlegal.com
- http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `688c71159a0678bec7dd3eb0aafd62c70a5414f8002ffdcc627a94803bec4123`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	3448 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 long base64-like blob(s).

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