Malicious PDF — malware analysis report

Static analysis result for SHA-256 11abc12425229043…

MALICIOUS

PDF

68.1 KB Created: 2021-03-07 19:59:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: dee3795c1934c729a817c4bfdadc92d7 SHA-1: d846816a3c8af1c8408877a091c52697085e0656 SHA-256: 11abc12425229043033b379a4fc702d485b7676d1aee37ff76dc15e1e1defa70
124 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for Pdf.Phishing.Trojan and an ML classifier indicating maliciousness. It contains numerous embedded URLs pointing to disposable hosting and link farms, suggesting a phishing or scam campaign. While no scripts were explicitly extracted, the presence of external URIs and the overall detection profile strongly indicate a malicious intent to redirect users to harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9791

Heuristics 4

  • 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
  • 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://pelibifir.ru/award?keyword=himno+nacional+de+honduras+con+su+explicacion PDF link annotation
    • http://medyahanem.com/13944600042re725.pdfIn PDF document text
    • http://triple-doska4.club/gepunevolopisarazorudet1e513.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384039/normal_5ffd4b29685db.pdfIn PDF document text
    • http://befigter.xyz/the_murder_book_examining_homiciderukbc.pdfIn PDF document text
    • http://makamar.xyz/jaletabaluxabiludnjto.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376369/normal_600b3bd753ec4.pdfIn PDF document text
    • https://cdn.sqhk.co/rodisukipi/cIjdEhb/table_top_white_artificial_christmas_trees.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418991/normal_6009672879782.pdfIn PDF document text
    • https://cdn.sqhk.co/koxuzofu/ibD2NhT/jesum.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382414/normal_6015bbe9d8525.pdfIn PDF document text
    • http://normab-id.com/sonekupafesariferezeds56gz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xapijifas/game_studio_tycoon_3_mod_apk_full.pdfIn PDF document text
    • http://gozuxinub.epizy.com/share_market_technical_analysis_software_free.pdfIn PDF document text
    • http://wopawotejexu.epizy.com/69175244023.pdfIn PDF document text
    • https://s3.amazonaws.com/satedafadusizo/analog_clock_worksheets_1st_grade.pdfIn PDF document text
    • http://xivajaraseb.rf.gd/92807929701.pdfIn PDF document text
    • https://s3.amazonaws.com/tutapaxi/hellscream_s_reach_exalted_guide.pdfIn 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_off0000dfb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFB1 5344 bytes
SHA-256: f42435e2ea8b0c042c691a6128c0205c0f15331d52a01c54f448f619e4e93f7d
font_01_sfnt_off0000f1ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1AB 11800 bytes
SHA-256: b17da0a69d8535180aa2a7fe501e979dd355dcfd12bc5704bb0594a5d992ed97