Malicious PDF — malware analysis report

Static analysis result for SHA-256 f07f9c82edf82980…

MALICIOUS

PDF

76.7 KB Created: 2021-03-21 08:26:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bf9500bb81efb681c209c3ae6590318e SHA-1: d4d6cbd183d9e89564273083be0fec7aa8ddae06 SHA-256: f07f9c82edf829803ec24bbb02360a9e8ddf328e1bdaf04b5ff18b5054f9d972
66 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document contains numerous embedded URLs, many of which point to disposable domains and are flagged as a link farm. The ML classifier strongly indicates maliciousness, and the presence of external URIs suggests an attempt to redirect the user to potentially harmful content. No scripts were extracted, but the document's structure and URL distribution are indicative of a phishing or malware distribution lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • 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://xezojetit.ru/123?utm_term=cabaret+film+songs PDF link annotation
    • https://cdn.sqhk.co/lekusovu/bjbjdgh/scummvm_ios_13.pdfIn PDF document text
    • http://shoop-fh.ru/70210660544roe9s.pdfIn PDF document text
    • http://vugijow.iblogger.org/arris_tg862_manual_espaol.pdfIn PDF document text
    • https://cdn.sqhk.co/vimitewimuwi/ubjdhie/25611033868.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4503767/normal_5fc5ec4c92dd7.pdfIn PDF document text
    • https://cdn.sqhk.co/podoxato/wgcvAih/best_young_potential_players_fifa_19_career_mode.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374848/normal_6041cc4b2a7ca.pdfIn PDF document text
    • https://cdn.sqhk.co/fatepotax/hrgeRaQ/wire_soap_cutter.pdfIn PDF document text
    • http://paxezimusosesa.scienceontheweb.net/nixon_the_rubber_player_mens_watch.pdfIn PDF document text
    • https://cdn.sqhk.co/datujisukebe/jcNihjb/90228591963.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367944/normal_5fe856b409dfa.pdfIn PDF document text
    • http://xufuxenu.mypressonline.com/7_day_mental_diet_challenge.pdfIn PDF document text
    • http://terugate.mypressonline.com/jofepukado.pdfIn PDF document text
    • http://kapusta.pro/zudojava9alxd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dunaditi.rf.gd/zagg_keyboard_not_charging.pdfIn PDF document text
    • https://73099f28-10d5-4558-98a1-2f8dc61f1a2f.filesusr.com/ugd/f62eaa_2e45beaeda264bb19f39c6c7fc0f2465.pdf?index=trueIn PDF document text
    • https://1682489e-d94b-4f22-b6a6-c8ecb623ca2e.filesusr.com/ugd/5f226e_515d81a2c24b4446912dd44e4e93f4fc.pdf?index=trueIn PDF document text
    • https://c546c886-5aa5-41cc-813f-4ed3e146772c.filesusr.com/ugd/b3e52d_d4d9c3acd0dd4326be309975a98c8c1d.pdf?index=trueIn PDF document text
    • http://pekomuvave.myartsonline.com/nuginukutu.pdfIn PDF document text
    • http://vofufedufis.rf.gd/free_inventory_template.pdfIn PDF document text
    • https://5c839259-519f-4cee-a1a2-6639d654070b.filesusr.com/ugd/140efa_3e464774438e4ec3aea07b90bd6c4c9a.pdf?index=trueIn PDF document text
    • https://ecf8b3bd-8201-449f-a39c-156acd88681e.filesusr.com/ugd/97634b_4216e10774c24a5fac392f47a6810f10.pdf?index=trueIn PDF document text
    • http://bopasewawimugu.epizy.com/96704900442.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_off0000edcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDCB 5132 bytes
SHA-256: ecd478bbe3b2dd76c2470d647105cee69bd24f2416dd9b6b1a3b7b2dc9f790b7
font_01_sfnt_off0000ff2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF2A 11000 bytes
SHA-256: 148335497304bde4c4a8f981878651e911bc08b0db8ce8a4dd36062db0351400

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