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

Static analysis result for SHA-256 dc107c30d0dbd8d7…

MALICIOUS

Office (OLE) / .DOC

49.1 KB Created: 2014-01-29 16:05:00 Authoring application: Microsoft Office Word
MD5: 3abd2006dec7f80a31d0a1ae36052d5c SHA-1: 5996f47eb41cd665bbf969dc86c0dd6ba104ee45 SHA-256: dc107c30d0dbd8d7279c03f4242ec4e66aa94213365ef60f0e38018bff41f997
380 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic for Applications T1059.001 PowerShell T1204.002 Malicious File

The sample contains VBA macros, including an AutoOpen macro, which is a strong indicator of malicious intent. The macros utilize WScript.Shell and CreateObject, suggesting an attempt to execute commands or download additional payloads. The presence of embedded URLs, such as http://199.103.63.221/progsKK/Articolo.txt�, further supports the hypothesis that this document is designed to download and execute further malicious content. The document body presents a fabricated news story to trick the user into enabling macros.

Heuristics 10

  • OLE with Ole10Native — possible CVE-2026-21514 exploitation high CVE likely CVE_2026_21514
    Document contains a Word OLE object with Ole10Native plus executable, PE, or risky remote-link indicators. CVE-2026-21514 exploits OLE metadata validation; this stronger structure is treated as likely exploitation.
  • 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
  • OLE document has large unaccounted-for region high OLE_SLACK_ANOMALY
    OLE file is 50,235 bytes but its declared streams total only 28,479 bytes — 21,756 bytes (43%) live in unallocated sector slack. This is the canonical hiding place for pre-macro-era Office exploit payloads (XOR-encoded shellcode reached via a parser pointer-corruption bug in the document structure).
  • AutoOpen macro high OLE_VBA_AUTOOPEN
    AutoOpen macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • 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://www.unita.it/polopoly_fs/1.547646.1390760260%21/image/2071451933.jpg_gen/derivatives/box_144/2071451933.jpg
    • http://199.103.63.221/progsKK/Articolo.txt�
    • http://www.scuolaelementarediorziveccho.191.it/Public/Articolo.txt�
    • http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
bc414b3d4a77056814824d6d088475b5c627b3c4599e0b6c12becf403f755fb1		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 1602 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 shell/COM execution token(s). Carved macro source contains an auto-exec entry point and execution/download terms.

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