Malicious Office (OOXML) / .DOC — malware analysis report

Static analysis result for SHA-256 f21289980710dcbb…

MALICIOUS

Office (OOXML) / .DOC

72.0 KB Created: 2020-11-10 17:00:00 UTC Authoring application: Microsoft Office Word 16.0000
MD5: 2daf962dde5f47ff1ca3ee9dfad1b8c1 SHA-1: 2428999eb56ebcf1fcd5e7749de1169a0989aabe SHA-256: f21289980710dcbb525d70a2be6aa1dc3118150386c0b2196cc5f23e637b87f5
302 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.003 Windows Command Shell T1204.002 Malicious File

The OOXML document contains VBA macros that utilize Shell() and WScript.Shell to execute commands. A heuristic indicates a remote image beacon, suggesting the macro is designed to download and execute a second-stage payload from the provided URL. The document also contains a lure to enable macros, a common social engineering tactic.

Heuristics 10

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • WScript.Shell usage critical OLE_VBA_WSCRIPT
    WScript.Shell usage
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • VBA project inside OOXML medium OOXML_VBA
    Document contains vbaProject.bin — VBA macros present
  • Remote image (web beacon / tracking pixel) medium OOXML_IMAGE_BEACON
    Document references an external image URL — loads automatically on open, revealing IP address and timestamp to the server (used for phishing tracking and NTLM hash theft on corporate networks)
    URL http://144.168.197.36/ts/WXTPACTFA4xQHE0CKyHKVZg76DYb82ixdA~~/MaPeDDV-t53ENl-Naf1uGV_1cvpbFSf-aA~~/
  • External relationship medium OOXML_EXTERNAL_REL
    External target in word/_rels/document.xml.rels: http://144.168.197.36/ts/WXTPACTFA4xQHE0CKyHKVZg76DYb82ixdA~~/MaPeDDV-t53ENl-Naf1uGV_1cvpbFSf-aA~~/
    URL http://144.168.197.36/ts/WXTPACTFA4xQHE0CKyHKVZg76DYb82ixdA~~/MaPeDDV-t53ENl-Naf1uGV_1cvpbFSf-aA~~/
  • 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 medium 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 — 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://schemas.microsoft.com/office/word/2010/wordprocessingCanvas
    • http://schemas.microsoft.com/office/drawing/2014/chartex
    • http://schemas.openxmlformats.org/markup-compatibility/2006
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships
    • http://schemas.openxmlformats.org/officeDocument/2006/math
    • http://schemas.microsoft.com/office/word/2010/wordprocessingDrawing
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing
    • http://schemas.openxmlformats.org/wordprocessingml/2006/main
    • http://schemas.microsoft.com/office/word/2010/wordml
    • http://schemas.microsoft.com/office/word/2012/wordml
    • http://schemas.microsoft.com/office/word/2015/wordml/symex
    • http://schemas.microsoft.com/office/word/2010/wordprocessingGroup
    • http://schemas.microsoft.com/office/word/2010/wordprocessingInk
    • http://schemas.microsoft.com/office/word/2006/wordml
    • http://schemas.microsoft.com/office/word/2010/wordprocessingShape

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
18b71bd75bc23f112fa05cab5a93b9599a33cbee3185d5bd03f0eb1972fb3599		 vba-macro oletools.olevba.extract_macros (decoded VBA source from OOXML) 8010 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 shell/COM execution token(s).
vbaProject_00.bin
64f1b76965a3c2e856b38309f525511cbf9c002c7cfa027318288b6f20621590		 vba-project OOXML VBA project: word/vbaProject.bin 24576 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 shell/COM execution token(s).

Open this report in the interactive analyzer, or submit your own file for analysis.