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

Static analysis result for SHA-256 2e0b08c4b13d928f…

MALICIOUS

Office (OLE) / .DOCX

178.0 KB Created: 2020-12-23 16:45:00 Authoring application: Microsoft Office Word
MD5: 27d42e524130021f6578150df88a31af SHA-1: bc62c400dccb673bdd8829734930fa8aeb35bde0 SHA-256: 2e0b08c4b13d928fbb8869f0d6173e96e1573a68bc1fe304560bbee87245c4f9
328 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1071.001 Web Protocols

The sample contains VBA macros, including an auto-executing 'Document_Open' macro that uses GetObject, indicative of a downloader. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' strongly suggests the document's purpose is to trick the user into providing a password for an archive, which is a common tactic for malware delivery. The embedded URLs are likely staging points for second-stage payloads. The ClamAV detection as 'Doc.Downloader.ChristmasGift-9845923-0' further supports this assessment.

Heuristics 10

  • ClamAV: Doc.Downloader.ChristmasGift-9845923-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.ChristmasGift-9845923-0
  • Reference to Windows Script Host high SC_STR_WSCRIPT
    Reference to Windows Script Host
  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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
  • Environ() call (env variable access) low OLE_VBA_ENVIRON
    Environ() call (env variable access)
  • 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 https://cnkmovil.com/wp-content/plugins/php-compatibility-checker/php52/vendor/egOIa0pQyQl3E.php
    • https://webinlavorazione.it/ithsd3BzrqT.php
    • http://findmysounds.com/wp-content/plugins/updraftplus/central/classes/JfTiaE8nYsuWyuk.php
    • http://carlos-anigstein.com.ar/wp-content/themes/twentyfourteen/genericons/font/gyFeGUBKvIrSxkv.php
    • http://antiquesonline.co.in/HXhmMXvugNZomms.php
    • http://sfp.ctrld.site/5uj1u1wtM.php
    • https://impulsionfood.com/wp-content/plugins/updraftplus/css/tether-shepherd/KOXxcWEykFogqs.php
    • https://images.emergencylegalforms.com/images/1ET1xIVUL.php
    • http://sypher.biz/nx3jY0Jl.php
    • http://rahulkishnani.com/4NdK4pucjN.php
    • http://schemas.openxmlformats.org/drawingml/2006/main
    • http://www.w3.org/1999/XSL/Transform

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
25743792c3865fb7f2ce9a88f12acdc38b8039ddcaa04ff6fbf4ed09037f5228		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 20190 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 125 Chr/ChrW string-construction calls. Carved macro source contains an auto-exec entry point and execution/download terms.

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