Malicious PDF — malware analysis report

Static analysis result for SHA-256 80945c1007824e9a…

MALICIOUS

PDF

69.0 KB Created: 2020-08-31 04:42:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f03ed3382c4c384668dc84b7a6fb74ff SHA-1: 6eb99fcefca25fbfc764b22404f495f0fb135aa4 SHA-256: 80945c1007824e9a7646c5821c115833f2eb7fb2af7c42c1acc948ee41139b6c
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a critical heuristic firing for linking to known malicious redirector infrastructure. The embedded URL, 'https://ttraff.cc/wix?keyword=kenshi+stealth+training', is likely intended to lead the user to a malicious site. The ML classifier also strongly indicated maliciousness, supporting the assessment of a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ttraff.cc/wix?keyword=kenshi+stealth+training In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/36f25b_5b94a78af6774753b93062400cacd130.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/ab059d_36660154545345a2b2093218add3a787.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/30e015_892b577ff9004ffaaa95f937d9c9ef5e.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/16a96a_9ac26a7d621a4b29be58791c0bfce50c.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/db93e9_493f01362d3b491485e17f6a80b89a3d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/f55bec_e9d8d7c0764b458783d97303ca8aa95a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/d55797_f5551c88307a48ff9b7ad401640508d0.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/e5a943_a5a30cfc7627407b8fef1466bce046a9.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/07ef24_93481109410c44e49b8ce99ecf2b0fd7.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b0cd75_36eae83cb66049b19d8f4db7501b13e2.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_1d857966b17f415e9e175e82239d8f4d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/57c819_b8b2519c53834c59a90144d9ca566be7.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/2ac701_500d6aec60d64142856a197fcf6bdd5d.pdfIn 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://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d343.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD343 4916 bytes
SHA-256: 202f1a9ab3d1e0b6ae8b2fbe507095d14e7229bfa92ba92a8ad01150e9aab164
font_01_sfnt_off0000e3f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3F4 10440 bytes
SHA-256: 8c5e387cc9d550ca0b1b3be7f7a826495979765990b8213e89cf2f69c5588fde

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