Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1e24dcfceba704a…

MALICIOUS

PDF

160.8 KB Created: 2020-12-07 16:31:40 +03:00 Authoring application: mPDF 7.1.0 First seen: 2023-12-11
MD5: 42f808b8f6e754744f2964c97ba24032 SHA-1: b67845f77d9e01119526d6d79fff01df15378f1d SHA-256: c1e24dcfceba704a371e72819569554c3640aaffec48bfe4de53b0d67646589a
72 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0004

Heuristics 4

  • 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.
  • 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/pdf/canon PDF link annotation
    • http://giyimkentdestek.com/userfiles/ic-91-service-manual.xmlIn PDF document text
    • http://www.imagemarte.com.br/arquivos/ic-901a-manual.xmlIn 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_009_off00006937.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_009_off00006937.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_009_off00006937.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x6937 19996 bytes
SHA-256: 8e639af5f37a01c952d7fa5ae521c275babc199f4d44038938bf51c1324a673d
font_01_sfnt_off00009f13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F13 19964 bytes
SHA-256: 5154a7c8cf7a9b55c2f939ad6a4a8f8327cd6552b9f68a87c49d10dfc747eaa8
polyglot_child_pdf_off0000000f.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0xF 164624 bytes
SHA-256: c42e1430ddc7cc79a27f91d328399af31eea5cbc7d9470b85358a91f17d26a80
polyglot_child_pdf_off0000001e.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x1E 164609 bytes
SHA-256: 47e71f814786b18acb4c3a54c97237f3f7fc42586aef7e8cea5c3810e25ab9c4
polyglot_child_pdf_off0000002d.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x2D 164594 bytes
SHA-256: e97f37b147c83a6791588695daade0b5c9659982b0c3d7c790cb14a9dcea25f2
polyglot_child_pdf_off0000003c.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x3C 164579 bytes
SHA-256: e4a23c8ae86efed580c7739d97ec0e6521ed16738abee18cec4b81e3cc4a7688

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