Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc2695798ac89cdd…

MALICIOUS

PDF

81.3 KB Created: 2021-03-17 01:33:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2017236cadb266365e43df149c7575ba SHA-1: 7a3a9cc912aea944e91648ba8a983cd5ec281e42 SHA-256: cc2695798ac89cddf785d323a97ae14018579de503c0f1d4de7e893aeb5f6868
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. It contains numerous embedded URLs, many pointing to disposable hosting, suggesting a link farm or phishing operation. The document body, though heavily obfuscated, appears to be a lure related to 'game design worksheet', aiming to trick users into visiting these external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://nipisod.ru/wix?keyword=game+design+worksheet PDF link annotation
    • http://dombitarf.ru/31517570351uh9np.pdfIn PDF document text
    • https://cdn.sqhk.co/tefozakozup/t70jigi/12188099517.pdfIn PDF document text
    • https://cdn.sqhk.co/banifiga/ij1lfii/aapex_driving_school_home_links_answers.pdfIn PDF document text
    • https://cdn.sqhk.co/kokojisip/jbge7jc/tractor_pulling_games_for_xbox_360.pdfIn PDF document text
    • http://sparzha.club/meraxigezujisozefof3yiz3.pdfIn PDF document text
    • https://cdn.sqhk.co/vovoritufi/gfihjjd/my_singing_monsters_dawn_of_fire_new_prismatic.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366335/normal_5fe05d253e69e.pdfIn PDF document text
    • https://cdn.sqhk.co/zuxeromewime/YygjjaP/becoming_a_school_teacher_in_florida.pdfIn PDF document text
    • http://benevesegok.iblogger.org/34014308746.pdfIn PDF document text
    • https://cdn.sqhk.co/medujebukoma/ji6bhN5/zalimubutezogonixabanozik.pdfIn PDF document text
    • https://cdn.sqhk.co/dulinifijal/cidRjgM/buguv.pdfIn PDF document text
    • http://airbin.top/nanomunojumulisebilofesif34hv.pdfIn PDF document text
    • https://cdn.sqhk.co/piwoputi/FgighZu/peixe_celacanto_forma_de_reproduo.pdfIn PDF document text
    • https://cdn.sqhk.co/refowofiros/ajigisy/karanutemi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410988/normal_5fde93744f304.pdfIn PDF document text
    • https://cdn.sqhk.co/riragimi/cp25lgg/25765230347.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393348/normal_5feff5946fc63.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499285/normal_5fc7f09ebcbe2.pdfIn PDF document text
    • http://uscarins.info/watch_directv_on_amazon_fire_tvw5541.pdfIn PDF document text
    • http://boost-shop.xyz/49509407595yjkax.pdfIn PDF document text
    • http://joxetinosutuj.iblogger.org/ford_3000_diesel_tractor_wiring_diagram.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zojofat.epizy.com/appendicular_skeleton_lab_answers.pdfIn PDF document text
    • http://tebubejusudigu.rf.gd/rojogamakel.pdfIn PDF document text
    • http://sekovukubetib.epizy.com/muxumesuwepurab.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fe6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE6C 5392 bytes
SHA-256: 337dcd6bbc39f81e5bd046b2dcfbaef741eafaa19b89e36755058d9354de90d8
font_01_sfnt_off000110aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110AA 11748 bytes
SHA-256: 7b59d475dcf62060942d6efef60ea57e1ddd6b1782bbe56cc814958b29282dbc

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