Malicious PDF — malware analysis report

Static analysis result for SHA-256 941eac855c8d8f20…

MALICIOUS

PDF

83.4 KB Created: 2020-11-12 21:19:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-12
MD5: 386e8ab023ed817439ee9a0a3dc71a26 SHA-1: 8b38771a5002615c15e373ec1da66d5d58fe23bc SHA-256: 941eac855c8d8f20505f20972d7a4e69a080e594d1bb0624cce756b35876f4eb
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://traffset.ru/123?utm_term=seiko+perpetual+calendar PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4380876/normal_5f8cc32d82986.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368969/normal_5f97d6e56d0b2.pdfIn PDF document text
    • https://fobaripiso.weebly.com/uploads/1/3/4/4/134443650/cf5b09e420.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/9468eb1a-3c35-466b-8a21-adbb8be9cb1b/life_in_paradise_2_script_pastebin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eddf0830-3377-4d68-8f29-7cb62a743f09/74733009007.pdfIn PDF document text
    • https://s3.amazonaws.com/wogikokuzotaxa/bipukizevuda.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db62b1ae-3ab2-4cf0-a513-9deeec384b6c/dapamirin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d506fc64-c306-44d8-9ffb-e2deb4b64524/8635897071.pdfIn PDF document text
    • https://s3.amazonaws.com/rovikibixu/eve_online_mining_skills_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/remufuzu/cambios_sociales_en_el_embarazo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bdf0b742-2845-49bd-8e17-44c72cdb4d69/37557344173.pdfIn PDF document text
    • https://s3.amazonaws.com/zonebon/raposizixosutuboduvujavi.pdfIn PDF document text
    • https://s3.amazonaws.com/dudigonifu/aborsi_menurut_islam.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010ad1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AD1 5056 bytes
SHA-256: ce5a2921f68341dc520d8600cd708bf3eb7ffb299259c330eb4423da52f12e83
font_01_sfnt_off00011c14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C14 10836 bytes
SHA-256: 816b1450951f00283c917c8b2837d1e53b45c21fda3816e8c08acc6922c0b993