Office (OLE) / .DOC malware analysis — malicious · 8e7beef41d120fd5

MALICIOUS

Office (OLE) / .DOC

164.0 KB Created: 2021-02-01 05:00:00 Authoring application: Microsoft Office Word

MD5: e9a25847284ffb24f47d71ff35c98ac5 SHA-1: c721848e883a0bdf3533ccbe563f291e0335fe08 SHA-256: 8e7beef41d120fd5f547fec2a8bfdd75ab7a8c45a19b8a16c7ad20c8fc67a96f

360 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic for Applications T1059.003 Windows Command Shell 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 utilizes WScript.Shell to run commands. The document body contains a lure instructing the user to 'Enable content to display below transaction receipt', which is a common social engineering tactic to bypass macro security. The primary intent appears to be downloading and executing a second-stage payload, though no specific URLs for this purpose were extracted.

Heuristics 10

Shell() call in VBA critical OLE_VBA_SHELL

Shell() call in VBA
WScript.Shell usage critical OLE_VBA_WSCRIPT

WScript.Shell usage
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
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
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` `a626e12a28fb66f2432757d052d11be8aa9b35fe25cf03793592d0b25ca738bc`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	261831 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 shell/COM execution token(s). Carved macro source contains an auto-exec entry point and execution/download terms.

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