Malicious PDF — malware analysis report

Static analysis result for SHA-256 f99a7376459a8026…

MALICIOUS

PDF

70.4 KB Created: 2020-12-24 05:07:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-13
MD5: 816e8dbe0c64bac964f13e60e344f69d SHA-1: 617a119987ebf76dbf52551884d931895123448b SHA-256: f99a7376459a8026839481d02332e830b021872ea40897720495d8938700db6a
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://gettraff.ru/strik?utm_term=mini+dachshund+clothes+size In PDF document text
    • https://xebazasasixuj.weebly.com/uploads/1/3/4/6/134641459/futonube-velidunolanone-barifagariz.pdfIn PDF document text
    • https://wivezinafixozut.weebly.com/uploads/1/3/0/9/130969190/zijabiwitosewuxumibe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471711/normal_5fa64a8681daf.pdfIn PDF document text
    • https://wuxurabe.weebly.com/uploads/1/3/4/6/134608123/buxufu-jekidowomufu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368984/normal_5f8804cff0273.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467274/normal_5fb52f870b302.pdfIn PDF document text
    • https://togelugifipa.weebly.com/uploads/1/3/4/6/134648123/kufasenuwogivif.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366331/normal_5f8713a00d682.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370529/normal_5fe3c4bbd7f5a.pdfIn PDF document text
    • https://cdn.sqhk.co/duwewofowus/HpEjehj/tumovab.pdfIn PDF document text
    • https://cdn.sqhk.co/xaderimi/bjcIhcz/36038687450.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/b7bc90f9-356b-477f-9b39-05d5a4d2c947/ffbe_royal_crown.pdfIn PDF document text
    • https://s3.amazonaws.com/nisiwanolom/vapexeje.pdfIn PDF document text
    • https://s3.amazonaws.com/saxefi/88280221601.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_off0000d6ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6EE 4984 bytes
SHA-256: bab792e8f5cc910ead43b263e01c8ca25c255316d785e82b64bfeb20f363f438
font_01_sfnt_off0000e7f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7F0 10992 bytes
SHA-256: 5f19c599b284b8c663d9e2f75798a45865127d7b25bbf8093ecd23f36ba0ad7c

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