Malicious PDF — malware analysis report

Static analysis result for SHA-256 b61d256fadc60760…

MALICIOUS

PDF

141.9 KB Created: 2022-03-31 11:36:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-15
MD5: 643f47b7c323fadb62dfc67a9b5cab1b SHA-1: 737466b8647a8d0722783fce4ed8cf4382a610aa SHA-256: b61d256fadc607604ca8cd641596e44b3033de31c7a695eedad776b1f77636b8
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9871

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
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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://sunuf.co.za/YmrXLWy8?keyword=solving%20literal%20equations%20for%20a%20given%20variable%20calculator PDF link annotation
    • https://norservis.cz/files/files/75224560825.pdfIn PDF document text
    • https://conviviodihera.it/dati/upload/file/9807202605.pdfIn PDF document text
    • https://futurefacesnyc.com/uploads/file/wavizuxidarurabirok.pdfIn PDF document text
    • http://veterina-naslunci.cz/userfiles/file/zipibitavaboniten.pdfIn PDF document text
    • https://sezenoxesakibek.weebly.com/uploads/1/3/0/7/130740551/2137330.pdfIn PDF document text
    • http://nb-magnet.com/upload/files/68642115732.pdfIn PDF document text
    • https://mewotetinud.weebly.com/uploads/1/3/5/9/135956813/joxonifomubur.pdfIn PDF document text
    • http://gaia-onlus.org/userfiles/file/68319694766.pdfIn PDF document text
    • https://centrosul.info/userfiles/file/7897316365.pdfIn PDF document text
    • https://jezuvafu.weebly.com/uploads/1/3/5/3/135348480/e2431.pdfIn PDF document text
    • http://kipia-nn.ru/userfiles/file/tiguluv.pdfIn PDF document text
    • http://kowalstwwo.pl/public/cms/images/file/83971775844.pdfIn PDF document text
    • https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1620685d320b95---depenupunupapofe.pdfIn PDF document text
    • https://fasleh.net/Files/files/sovakuvosujedubido.pdfIn PDF document text
    • http://schoonhovensvrouwenkoor.nl/ckfinder/userfiles/files/65564996203.pdfIn PDF document text
    • https://bevozuvegala.weebly.com/uploads/1/3/3/9/133999301/1867363.pdfIn PDF document text
    • https://afritransport.com/app/webroot/files/file/ragaboxotuxofukaru.pdfIn PDF document text
    • https://zanokelalugabu.weebly.com/uploads/1/3/5/3/135315143/ridabamuram.pdfIn PDF document text
    • http://everestsherpatravel.com/demo/public/ckeditor/kcfinder/upload/files/94134419413.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_off0001c8d1.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0001c8d1.bin)

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001c8d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C8D1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0001e0e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E0E8 11036 bytes
SHA-256: 7ebdebbbdfbe2eb380544846c84e7d2fada55c98be13f117a0e1ddb58382376a
font_02_sfnt_off0001fa70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1FA70 17380 bytes
SHA-256: 27927a8a933470057f45138ec175a4117bc5b27d82d8087809ff31bfffefd16d

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