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

Static analysis result for SHA-256 08e3da6d2868bb29…

MALICIOUS

Office (OLE) / .DOC

45.5 KB Created: 2017-08-01 08:56:00 Authoring application: Microsoft Office Word First seen: 2021-10-23
MD5: 25187f1a0c61dd484e43ccfbbea0d8dd SHA-1: 2f57d6fa7cdc407dd7e13f8d82ba385054bf09ea SHA-256: 08e3da6d2868bb292f81e3580b1686a34fc5c25051f2c9601671f35873688307
242 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.005 Visual Basic

The sample is a malicious Office document containing VBA macros, specifically an AutoOpen macro that calls a function to execute a shell command. The document body contains a lure to "Enable Editing" and "Enable Content" to bypass security measures. The VBA script is obfuscated but appears to construct and execute a command via the Shell() function, likely to download and run a second-stage payload.

Heuristics 7

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • ClamAV: Doc.Dropper.Agent-6521428-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.Agent-6521428-0
  • AutoOpen macro high OLE_VBA_AUTOOPEN
    AutoOpen macro
  • 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
  • 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://ns.adobe.com/xap/1.0/
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/sType/ResourceRef#
    • http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
d7bc10aa595d68dc47a5b435a524cebd582af0a014465dcb286c3941e0c1bcd0		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 1620 bytes

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