Malicious PDF — malware analysis report

Static analysis result for SHA-256 ade19002254de58d…

MALICIOUS

PDF

76.3 KB Created: 2021-03-05 14:19:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 3f5ed3d3a0783bab3c5c72375267254e SHA-1: acf5a99e65f7ed7d6992a6d1161a99caf1c9dfb6 SHA-256: ade19002254de58df5c7451406bc3078ca7e588659ba550b81cc414bbe575551
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, containing numerous external links to other PDF files hosted on various domains, some of which are disposable. This technique is often used for SEO manipulation or to distribute phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9892

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 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.
  • 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://nipisod.ru/award?keyword=polar+bear+population+2009+vs+2019 PDF link annotation
    • https://cdn.sqhk.co/guwaloxipete/ibhdbYH/bowling_3d_strike_free_online_game.pdfIn PDF document text
    • http://punavuvipufov.sportsontheweb.net/tipos_de_funciones_ejercicios_resueltos.pdfIn PDF document text
    • http://milesnires.xyz/what_is_grounded_theory_design1opwj.pdfIn PDF document text
    • https://cdn.sqhk.co/vixokezafafu/W51dhdJ/6805802323.pdfIn PDF document text
    • https://cdn.sqhk.co/leporolino/WhiwN14/lg_xboom_go_pl2w.pdfIn PDF document text
    • https://cdn.sqhk.co/lizuloka/bBRiaii/61064241317.pdfIn PDF document text
    • http://nesebonuvobeju.getenjoyment.net/vuripijefurafuja.pdfIn PDF document text
    • http://forecast.bet/george_foreman_rotisserie_gr80_manuallr8sx.pdfIn PDF document text
    • https://cdn.sqhk.co/tinodifozeza/0JX7ggm/basketball_stars_hack_ios_no_jailbreak.pdfIn PDF document text
    • https://cdn.sqhk.co/joxusozomilo/gchiThi/car_action_games_racing_2020_online_play.pdfIn PDF document text
    • http://wepirafigezatid.22web.org/2005_dodge_ram_1500.pdfIn PDF document text
    • https://cdn.sqhk.co/nozelenid/kjcnNid/command_and_conquer_4_vs_red_alert_3.pdfIn PDF document text
    • http://mantenancie.com/canon_eos_t5i_manualxzjgr.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cf268418-7549-4780-9cff-e39e61b5276c.filesusr.com/ugd/0b1cf2_9c51c2d7b1cb40c58ea4c0dc29c6afa8.pdf?index=trueIn PDF document text
    • https://1c019786-7048-4615-837a-ae53f087c4ae.filesusr.com/ugd/8b4172_4d931134759c4845b07dcedccceceda0.pdf?index=trueIn PDF document text
    • https://59cf682b-6680-4a08-8b8d-0472bab64ef7.filesusr.com/ugd/d7d6cd_c11df56752b745019821fe94aca1341a.pdf?index=trueIn PDF document text
    • http://pixunarev.epizy.com/22036303386.pdfIn PDF document text
    • http://bavatesivo.myartsonline.com/destined_to_reign_review.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_off0000f6fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6FE 5496 bytes
SHA-256: 9b10bef40497311a2236d1fae3ede23c1593352bcfeab70ee35c3a11c6b7fbe0
font_01_sfnt_off000109be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109BE 10492 bytes
SHA-256: 48b1119b0bc65629c2e2f99e34f222dae3a4c1eae0aa9e13ae721c077f488a42

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