Malicious PDF — malware analysis report

Static analysis result for SHA-256 e77d61a8bcd86bc8…

MALICIOUS

PDF

61.5 KB Created: 2022-05-04 03:50:37 +03:00 Authoring application: mPDF 7.1.0 First seen: 2023-12-11
MD5: e1797129815c88e4a35d41246a92561e SHA-1: e16f780e7132a2c2074aa85ab0d3c4dde9736ba8 SHA-256: e77d61a8bcd86bc84479058631a3f3919f9b12d1896198e6af679640d4c6d525
72 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0022

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://filesoftclub.club/fc/braun PDF link annotation
    • http://elgazargroup.com/craftsman-20569-welder-owners-manual.xmlIn PDF document text
    • http://garyconnery.com/admin/images/craftsman-208cc-counter-rotating-rear-tine-tiller-manual.xmlIn PDF document text
    • https://labroclub.ru/blog/4-digit-debug-card-manualIn PDF document text
    • http://gandgengineering.com/images/8111a-service-manual.pdfIn PDF document text
    • http://www.amagato.com/images/8111a-pulse-function-generator-manual.pdfIn PDF document text
    • http://dag.ru/www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/162709842d5c4b---boston-acoustics-spg555-manual.pdfIn PDF document text
    • http://eco-region31.ru/4-digit-debug-card-manualIn PDF document text
    • http://garyconnery.com/admin/images/craftsman-208cc-counter-rotating-rear-tine-tiller-In 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_004_off00003628.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_004_off00003628.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_004_off00003628.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3628 19836 bytes
SHA-256: ad6d801f7554b4de8183daf312cecf2a3a65662328777b95eb4eaac8815799eb
font_01_sfnt_off00006ba5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BA5 19964 bytes
SHA-256: 5154a7c8cf7a9b55c2f939ad6a4a8f8327cd6552b9f68a87c49d10dfc747eaa8
polyglot_child_pdf_off0000000f.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0xF 62950 bytes
SHA-256: 83e6daae8bdaee01f0d792d57bd091868abff485ce1f7a3d4ad1b72ea1ad8d68
polyglot_child_pdf_off0000001e.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x1E 62935 bytes
SHA-256: 896f4cea3ddd5a3928fc89a4912d9f180ca8d5c94496f606d00b7b9a707acecd
polyglot_child_pdf_off0000002d.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x2D 62920 bytes
SHA-256: 088f96ac821d2518ecb43af16ae5b91de2e696780bcb3bcb408a963375814fd0
polyglot_child_pdf_off0000003c.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x3C 62905 bytes
SHA-256: 3427f463b7a91b16717450e0b520227e4e71e73ac191beb6ac386d0c45bb15b0

Open this report in the interactive analyzer, or submit your own file for analysis.