Malicious PDF — malware analysis report

Static analysis result for SHA-256 47e23a004a0be6de…

MALICIOUS

PDF

94.9 KB Created: 2022-10-22 20:46:18 +03:00 Authoring application: mPDF 7.1.0 First seen: 2023-12-11
MD5: a9b6f0bc2b383df14c33cfb0dde6cef2 SHA-1: 512a530328338aeb0600efb79e09a075eca8495a SHA-256: 47e23a004a0be6de7fe6ac31df6ab85600f017228d6357d007b4ff17116ebad5
80 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0010

Heuristics 5

  • Secondary embedded PDF body has suspicious static findings critical POLYGLOT_CHILD_PDF_STATIC_TRIAGE
    A valid PDF body was found at a nonzero offset inside another container and its carved contents matched PDF exploit or lure heuristics. This catches polyglots where the top-level magic routes to ZIP/OLE while a PDF reader or downstream parser opens the hidden PDF payload.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://srwt.ru/mpdf/Dresser PDF link annotation
    • http://www.eindiaart.com/userfiles/cover-pools-manual.xmlIn PDF document text
    • http://gallery4walls.com/upload/editer/cover-sheet-chicago-manual-style.xmlIn PDF document text
    • http://schlammatlas.de/en/node/24933In PDF document text
    • https://labroclub.ru/blog/dynacord-powered-mixer-manualIn PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://dejavu.sourceforge.netIn extracted file (stream_006_off00004b72.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_006_off00004b72.bin)
🗂 Part of campaign: secureserver.net 1471 samples

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off00004b72.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B72 19836 bytes
SHA-256: ad6d801f7554b4de8183daf312cecf2a3a65662328777b95eb4eaac8815799eb
font_01_sfnt_off000080ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80EF 19964 bytes
SHA-256: 5154a7c8cf7a9b55c2f939ad6a4a8f8327cd6552b9f68a87c49d10dfc747eaa8
polyglot_child_pdf_off0000000f.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0xF 97156 bytes
SHA-256: fd79dff551b6a1c1897cce534e60ac05188f37a88fcbfb42a76cb730ffbdeb1d
polyglot_child_pdf_off0000001e.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x1E 97141 bytes
SHA-256: f8206888b5c516578492dbe6343021c40b6f2c4a035cf4b2372485a0e16dff78
polyglot_child_pdf_off0000002d.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x2D 97126 bytes
SHA-256: 312c8931031ddcf886b7e45010d01ce2cbd07651ebca704833dbc969bf9d860c
polyglot_child_pdf_off0000003c.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x3C 97111 bytes
SHA-256: 60379d2bcca540bb9aa1f98e4ae259797d7fa73145e1861e2bf64fcb45d42b8a

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