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

Static analysis result for SHA-256 1c6c854bc81d80b3…

MALICIOUS

Office (OLE) / .DOC

334.5 KB Created: 2020-12-14 12:38:00 Authoring application: Microsoft Office Word
MD5: 581ff434111437e26baec3e2eccaff53 SHA-1: fc483d5526cbf55e672ab6eb98c439d8eb7355cb SHA-256: 1c6c854bc81d80b3003c8bf8f3b600f9486871329d77efdb4e56ff2c88ef44dd
288 Risk Score

Malware Insights

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

The sample contains a Document_Open macro that utilizes GetObject and Environ calls, indicative of malicious intent. The macro is likely responsible for downloading and executing a second-stage payload from one of the embedded URLs. The ClamAV detection of 'Doc.Downloader.ChristmasGift-9845923-0' further supports this assessment.

Heuristics 9

  • 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.
  • 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://pccreed.com/n0fBZhgWWCcFo.php
    • https://kabiryogashramlimbdi.com/wp-includes/js/tinymce/plugins/charmap/7nem6JhxNGE.php
    • https://richardsilk.com/wp-content/plugins/updraftplus/images/addons-images/Zk8Iv9hirxx0i.php
    • https://cuencadistributions.com/wp-content/plugins/mailchimp-for-wp/vendor/bin/ekcBKiRsNXoj.php
    • https://simba.simbapropertylistingsea.com/wp-content/themes/twentynineteen/sass/blocks/bVMQHi8npqSri.php
    • https://sanjoseroofing.org/old/wp-content/uploads/2020/09/aRC84WdkOv16GY.php
    • https://loctraders.com/wp-includes/sodium_compat/src/Core/Base64/2qoGf0VX94dTFYv.php
    • http://electrocardsystems.com/plugins/vmcustom/specification/specification/tmpl/R674L7LjbwF.php
    • https://fmpanamby.ga/wp-includes/sodium_compat/namespaced/Core/ChaCha20/mVjwniGX.php
    • http://script.rentpayez.com/wwVbFeF1V2mFa.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
518814729ea615f8590ef36938df8fbc77b631c98ed3e748845789ca2e39b43b		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 47883 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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