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

Static analysis result for SHA-256 7a4c7ea0f89ed378…

MALICIOUS

Office (OLE) / .DOCX

534.0 KB Created: 2020-12-23 16:22:00 Authoring application: Microsoft Office Word
MD5: 4837131944ed784c696f89185e9feec3 SHA-1: 2de8163e33c09446a875fae124e81833cf795e32 SHA-256: 7a4c7ea0f89ed378e50f05683a83199ad8f67d6e9419dd7fa5b29b743f98a1e9
250 Risk Score

Malware Insights

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

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for malware delivery. The script utilizes Windows API calls such as PostMessageA and FindWindowExA, suggesting an attempt to interact with the operating system or other applications to facilitate payload execution. The presence of numerous unknown reputation URLs indicates potential download locations for a second-stage payload.

Heuristics 8

  • 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.
  • 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://allnewtech.co.uk/wp-includes/sodium_compat/src/Core/Base64/fgL6PtnqwJvkuF2.php
    • https://images.emergencylegalforms.com/images/1ET1xIVUL.php
    • http://penniesforsense.com/wp-content/plugins/penci-pennews-review/inc/templates/q3H69D5AKRPk.php
    • https://guides1815.be/admin_bkpe/fckeditor/editor/skins/default/qyFPBT53fs1CsH.php
    • https://negara-store.ir/wp-content/plugins/megamenu-pro/fonts/custom/SPgfsd3vi.php
    • https://travelspyders.com/wp-content/plugins/cartflows/theme-support/astra/mx6Kdpx4a3e.php
    • http://www.snsagro.in/IHw8vdgpQ7eV.php
    • http://findmysounds.com/wp-content/plugins/updraftplus/central/classes/JfTiaE8nYsuWyuk.php
    • https://energeticpharma.com/wHkBRXop2.php
    • https://www.dreamworldjdp.com/wp-content/plugins/woocommerce/src/Admin/yLz59GeAr.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
4ff93dae320614713966e904aaa58dd7bd3bfd93c37cf959fccd2db1242c2241		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 21376 bytes

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