Malicious PDF — malware analysis report

Static analysis result for SHA-256 2690724a5e7e0d0c…

MALICIOUS

PDF

76.9 KB Created: 2021-03-21 12:15:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8df26e4804995a1dde79609a367ed8f6 SHA-1: b3c142157e5c799158961e095f3b79d96ff3d593 SHA-256: 2690724a5e7e0d0c13be0e340052f0d188aeb9cef4989a07ae04100bb17bb3e5
186 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or redirection scheme. The embedded URLs are likely used to direct users to malicious sites, potentially for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • 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
  • 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://ponafet.ru/wix?keyword=zumdahl+chemistry+10th+edition+solutions PDF link annotation
    • https://koludoselutak.weebly.com/uploads/1/3/4/8/134893798/nurunesetorixebuxub.pdfIn PDF document text
    • http://rujitexoxobag.mypressonline.com/527063644.pdfIn PDF document text
    • https://fofavaduk.weebly.com/uploads/1/3/4/4/134436242/binibuzegedesajer.pdfIn PDF document text
    • http://pozijuza.scienceontheweb.net/lexus_rx_350_review_2016.pdfIn PDF document text
    • http://xubanapirobula.mypressonline.com/mr_coffee_4_cup_coffee_maker_manual.pdfIn PDF document text
    • https://vobawele.weebly.com/uploads/1/3/5/3/135334277/7103621.pdfIn PDF document text
    • http://petrol-v-pol-price.site/nudiloxt8245.pdfIn PDF document text
    • http://straponartist.com/oxygen_therapy_uk_guidelinesefrs1.pdfIn PDF document text
    • http://lamakexo.scienceontheweb.net/ctet._nic._in_answer_key_2020.pdfIn PDF document text
    • https://fomezesas.weebly.com/uploads/1/3/4/3/134343882/ximefopilerevakuwe.pdfIn PDF document text
    • http://zugemenelil.medianewsonline.com/child_self_directed_play.pdfIn PDF document text
    • http://pibarulajido.getenjoyment.net/auditing_assurance_services_a_systematic_approach.pdfIn PDF document text
    • http://iranianvc.com/dugetixakabutudapikon26ua3.pdfIn PDF document text
    • http://godezigupo.mywebcommunity.org/pisiwidonedorevaja.pdfIn PDF document text
    • http://sugebowupubixo.mypressonline.com/arteriografia_membros_inferiores.pdfIn PDF document text
    • http://tihefers.online/new_life_foursquare_churchjk3dh.pdfIn PDF document text
    • http://indital.space/tezaab_full_movie_hd_720p_downloaddo9eg.pdfIn PDF document text
    • http://nepoxiduvilej.scienceontheweb.net/gezunafovis.pdfIn PDF document text
    • https://bimidupixujeg.weebly.com/uploads/1/3/4/3/134319160/kekozutupijemoxo.pdfIn PDF document text
    • http://salizurewaki.mypressonline.com/46574919266.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://59bb578d-b312-442a-858b-1a1a54b18a6c.filesusr.com/ugd/c79b1c_9b4ff4f32aa34cb7974d6c60cac5a7e2.pdf?index=trueIn PDF document text
    • https://0ac950e2-707a-4e47-8bf4-daface0ea9db.filesusr.com/ugd/356f11_f7639975af3542b78961185e5b1928bd.pdf?index=trueIn 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_off0000edb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDB1 5432 bytes
SHA-256: acc848a0c444626a002e3ba5307ff05d4620f7da364a4bd7157cf0de68ef038d
font_01_sfnt_off00010007.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10007 11148 bytes
SHA-256: 9c919ced9d51d71c9ff99139f02aeb63eb5aa5fdbaf9c0ed24a7608cfe5c49f4