Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 213b66f1f1e3e23f…

MALICIOUS

PDF / .VIR

165.9 KB Created: 2020-12-06 12:42:16 +03:00 Authoring application: mPDF 7.1.0 First seen: 2024-07-16
MD5: 3cddec899ffeab131eeee43ec2dccd9d SHA-1: c3d4a26857c48510f3176c8cc09c009fa6cb0c87 SHA-256: 213b66f1f1e3e23faacdc10d3a57742c6a31e03606c1d200dd20da86ab9214d9
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://9ja-bet.com/userfiles/hp-1200-manual.xmlIn PDF document text
    • http://huahan.com/userfiles/hp-1200-printer-user-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_off00006a6f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_009_off00006a6f.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_off00006a6f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x6A6F 19880 bytes
SHA-256: 1333de742ddcbfaca7a569e26cee61a317f00a78edbf54c87ca4b8d69fd04dd6
font_01_sfnt_off0000a00c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA00C 19964 bytes
SHA-256: 5154a7c8cf7a9b55c2f939ad6a4a8f8327cd6552b9f68a87c49d10dfc747eaa8
polyglot_child_pdf_off0000000f.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0xF 169911 bytes
SHA-256: 8bb4969676a38458551907595ea39bcc7e73851a79f07d41cbf90bcfd37537d2
polyglot_child_pdf_off0000001e.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x1E 169896 bytes
SHA-256: dbad0a4fc7eed68e14ea063d9473d0cc6731821b4f84063549a364e5ebf376ab
polyglot_child_pdf_off0000002d.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x2D 169881 bytes
SHA-256: 7f719fe3b56cc9be8174e50e269c9714d4c21b620478d62a42cfdbb888e87d7a
polyglot_child_pdf_off0000003c.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x3C 169866 bytes
SHA-256: 41853376d12fdf783273f770e7282d2bb76c6142ed09cf53c8cd5724aecb5e22

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