Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb84be00a0f42857…

MALICIOUS

PDF

68.4 KB Created: 2022-03-31 12:39:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-09
MD5: 2552334ad91e7c198cb5bda1df9d3b3e SHA-1: 782a48ddb8bbbc37f5200a01bb6a4615b955381f SHA-256: cb84be00a0f42857ceb8170efdea7a9d690eb54353a3c2076ca0bbc529a86461
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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://cafij.co.za/YmrXLWy8?keyword=oxford%20physical%20science%20grade%2010%20textbook%20pdf%20download PDF link annotation
    • https://mannoorpally.com/uploads/file/22398311037.pdfIn PDF document text
    • https://tebivozov.weebly.com/uploads/1/3/2/7/132740763/2074065.pdfIn PDF document text
    • http://rrarental.org/upload/file/zaweg.pdfIn PDF document text
    • http://bernendorf.ru/userfiles/file/sowitakakatilux.pdfIn PDF document text
    • https://tuzafezinaxav.weebly.com/uploads/1/3/4/3/134319976/02038434c065791.pdfIn PDF document text
    • https://zuxadozi.weebly.com/uploads/1/3/4/6/134662888/7396730.pdfIn PDF document text
    • http://badischer-kunstverein.de/ckfinder/userfiles/files/dupumekuvikidofamin.pdfIn PDF document text
    • https://sipopomek.weebly.com/uploads/1/3/4/6/134632846/fowobos_zajuxigoramex.pdfIn PDF document text
    • http://theblare.com/image/upload/file/27384866425.pdfIn PDF document text
    • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/41304160451.pdfIn PDF document text
    • https://rajikaluniker.weebly.com/uploads/1/3/1/3/131383998/33c1e1c617a.pdfIn PDF document text
    • http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/161ff60666a5b4---fizepulukitov.pdfIn PDF document text
    • https://raxuzorozejataw.weebly.com/uploads/1/3/4/0/134042373/1715243.pdfIn PDF document text
    • http://dar-tom.pl/userfiles/file/zogigapumasu.pdfIn PDF document text
    • https://xalusadi.weebly.com/uploads/1/3/4/5/134595224/fipogilat.pdfIn PDF document text
    • https://musazulawikale.weebly.com/uploads/1/3/5/3/135305526/nizefora_deziwarew_givutew_pamuwogu.pdfIn PDF document text
    • https://vororesefuvemux.weebly.com/uploads/1/3/0/8/130813496/1459015.pdfIn PDF document text
    • https://gelavunojojudon.weebly.com/uploads/1/3/5/3/135390257/wudigam.pdfIn PDF document text
    • https://libonatelizipo.weebly.com/uploads/1/3/5/3/135326144/gogarulepes_wunizo_wawejimomidoka.pdfIn PDF document text
    • http://strap.sk/uploads/file/kuwifedazira.pdfIn PDF document text
    • http://maslatalaia.com/userfiles/file/vizugexa.pdfIn PDF document text
    • https://pezusadoti.weebly.com/uploads/1/3/4/5/134525395/volezoxapepidi-vudux-rorurigoguxonid.pdfIn PDF document text
    • http://101balkon.ru/upload/files/papaloforozagudesurevig.pdfIn PDF document text
    • https://vawilateg.weebly.com/uploads/1/3/4/6/134697686/fajux.pdfIn PDF document text
    • https://viveironativodevicosa.com.br/ckfinder/userfiles/files/15709589071.pdfIn PDF document text
    • https://www.jainajewellers.com/kcfinder/upload/files/36614073992.pdfIn PDF document text
    • http://sjatupornservices.com/file_media/file_image/file/ximaxojiwusixumimavinin.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000a493.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000a493.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a493.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA493 11632 bytes
SHA-256: 90d04f04ab5d212a3e68ef1c3504b24e0e6c252625ef8f3c0f54ff3bb81ca78b
font_01_sfnt_off0000bfe8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFE8 16392 bytes
SHA-256: 8cfa302934089fd69fbbde374d8d4738c5367a51f9fcc514847a2277e0ba5f9c
font_02_sfnt_off0000ea86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA86 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1