Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9c6bfd951683cdf…

MALICIOUS

PDF

71.9 KB Created: 2022-04-05 22:26:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-25
MD5: 3f53f6dc660c1534bbd8b5ceb800ab6f SHA-1: a714bf521f245acd0154fb140e20fab619a71975 SHA-256: a9c6bfd951683cdfa5afffeae18bd08edbe36a12648a8bc77adfe764aeb58203
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9916

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://wazalitewisoka.weebly.com/uploads/1/3/5/9/135960923/7931136.pdf In PDF document text
    • https://mifopezuzata.weebly.com/uploads/1/3/4/4/134484464/xakilalopuma.pdfIn PDF document text
    • https://fozapiko.weebly.com/uploads/1/3/0/9/130968993/letawixu.pdfIn PDF document text
    • https://padasalami.weebly.com/uploads/1/3/4/5/134597779/5c413595d.pdfIn PDF document text
    • https://sutowuvo.weebly.com/uploads/1/3/4/6/134685384/sixud.pdfIn PDF document text
    • https://cmri.ckbirlahospitals.com/controlpanel/kcfinder/upload/files/3703105979.pdfIn PDF document text
    • https://yoimart.com/upload/file/20220210074955.pdfIn PDF document text
    • https://sunisilasofuz.weebly.com/uploads/1/3/7/5/137517989/1596656.pdfIn PDF document text
    • https://zusobakarakawa.weebly.com/uploads/1/3/4/7/134752121/nevogabokezalatu.pdfIn PDF document text
    • https://wagidojinubem.weebly.com/uploads/1/3/1/4/131438567/zokagemulu.pdfIn PDF document text
    • https://mavoxigomag.weebly.com/uploads/1/3/4/0/134096713/laxapifodaz_xoxejolowewuso.pdfIn PDF document text
    • https://farisogu.weebly.com/uploads/1/3/4/3/134307724/wuguzatuw_vezojeketoladuw_rebegudu_bonebomamusig.pdfIn PDF document text
    • http://dyccpharma.com/upload/files/29430639239.pdfIn PDF document text
    • http://kibbkw.com/uploads/file/59078084385.pdfIn PDF document text
    • https://munizifazu.weebly.com/uploads/1/3/4/3/134354015/kezibuposulero.pdfIn PDF document text
    • http://kkslavicin.cz/sites/default/files/file/97975040457.pdfIn PDF document text
    • http://ned.ru/uploads/files/vemapev.pdfIn PDF document text
    • https://sevimuxeso.weebly.com/uploads/1/3/0/7/130739978/3753687.pdfIn PDF document text
    • https://dapobatajixafaw.weebly.com/uploads/1/3/4/3/134310280/wuraxugevugotop.pdfIn PDF document text
    • https://lefatelaxebaj.weebly.com/uploads/1/3/5/3/135398996/zigopeg.pdfIn PDF document text
    • https://pupizotewijuguw.weebly.com/uploads/1/3/0/7/130775862/4115866.pdfIn PDF document text
    • http://akgdsgfly.pretty-match.com/upload/files/gavemekagoduniz.pdfIn PDF document text
    • https://pebuxunuvir.weebly.com/uploads/1/3/1/4/131483235/mupalagulaj_bolaxafuj_wusizigumu.pdfIn PDF document text
    • https://zesadokalefon.weebly.com/uploads/1/3/2/6/132681767/kujezifoxoxa.pdfIn PDF document text
    • https://lufalejovi.weebly.com/uploads/1/3/1/3/131380058/lopemam.pdfIn PDF document text
    • https://uleiuri.ro/userfiles/file/91858374024.pdfIn PDF document text
    • https://norin.co.za/YmrXLWy8?keyword=soundlogic%20xt%20wont%20turn%20onPDF link annotation
    • 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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000b1fb.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b1fb.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b1fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1FB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ca12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA12 10444 bytes
SHA-256: 8c0b0422bae5566d30fa9a865d1b52242736f034de78640a6ddb629eb0789e09
font_02_sfnt_off0000e1b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1B5 17688 bytes
SHA-256: 2ec2bebdc2d2cb8d156bb5c684039fcca9a87da4eb8ae9115631e2493c410286