Malicious PDF — malware analysis report

Static analysis result for SHA-256 49af9cf41693293b…

MALICIOUS

PDF

92.8 KB Created: 2021-03-20 19:57:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 865096c21b0d0846fb4cd5b2c2279586 SHA-1: 1ca7338e41079343c46cbcfbefb3f94a935798bc SHA-256: 49af9cf41693293be05ec4471f26656b2742120a4ec8fe779aaca003b9c6afa0
186 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many hosted on disposable domains, indicating a link farm or phishing lure. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and link farm behavior are indicative of techniques used to redirect users to malicious sites, potentially for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://vilenefex.ru/strik?utm_term=dwarf+fortress+wiki+stone PDF link annotation
    • https://cdn.sqhk.co/koditisalupe/hhdhiIW/pixel_pinball_arcade_game.pdfIn PDF document text
    • https://palepolute.weebly.com/uploads/1/3/5/9/135963306/8452243.pdfIn PDF document text
    • https://cdn.sqhk.co/zomuzesirira/j9R2HIL/42200240276.pdfIn PDF document text
    • https://gakefutafo.weebly.com/uploads/1/3/0/7/130739004/5926675.pdfIn PDF document text
    • https://cdn.sqhk.co/bukoxomule/FyJjg3u/guilty_gear_isuka.pdfIn PDF document text
    • https://vimixake.weebly.com/uploads/1/3/1/1/131164471/3198099.pdfIn PDF document text
    • https://gifetapajuloper.weebly.com/uploads/1/3/4/6/134682222/b374be6ea01f1.pdfIn PDF document text
    • http://wogivodugakovek.mygamesonline.org/motorola_mc55_scanner_software.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465685/normal_603a783992731.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4506063/normal_6023f198c65c1.pdfIn PDF document text
    • https://juxipibofo.weebly.com/uploads/1/3/5/9/135985723/ruxawamovum.pdfIn PDF document text
    • https://totujefova.weebly.com/uploads/1/3/4/0/134096099/jomumiren_fexuwazira_sonasezosemib_kogagodi.pdfIn PDF document text
    • https://dexekuweda.weebly.com/uploads/1/3/4/7/134705305/81e0314f4ee2c.pdfIn PDF document text
    • https://cdn.sqhk.co/jujifefa/d21hdgf/fokiwedufapugi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481662/normal_5fe496e9160c0.pdfIn PDF document text
    • https://wogalipa.weebly.com/uploads/1/3/4/3/134316604/2509033.pdfIn PDF document text
    • http://jedusajinud.mygamesonline.org/alopias_pelagicus.pdfIn PDF document text
    • https://wirafoxojobukof.weebly.com/uploads/1/3/4/6/134608935/luvekuxozidegesexaso.pdfIn PDF document text
    • https://cdn.sqhk.co/pibepufas/ZzhjjcV/tenulotukodofase.pdfIn PDF document text
    • https://ninuxegomozul.weebly.com/uploads/1/3/1/8/131871835/d63d847.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc59aa2a-5888-4702-b443-e06658b9ba2c/lista_de_verbos_irregulares_en_italiano_conjugados.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/deef3f18-525d-4d11-a3d8-3be30e58a818/how_to_care_for_nimh_rc_batteries.pdfIn PDF document text
    • http://wegamaluperetuj.atwebpages.com/kizejufalabirofepovetiv.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001094e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1094E 4884 bytes
SHA-256: 88c4db51171e64896fa4823ece717ccbe87012b727a910b8b840cf32c8f96cc0
font_01_sfnt_off00011a18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A18 17024 bytes
SHA-256: ed424b14dc419f30992d3e92a406a09201b9ad5d327ebe26504f7f196910d0d3
font_02_sfnt_off00014ea4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14EA4 16132 bytes
SHA-256: 0845746d8e0f76c2c57e53a5d0c2d2ba36ed31c4724e2802406f297ba1795667