Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f26a1ab46d94c3…

MALICIOUS

PDF

78.0 KB Created: 2022-03-24 06:31:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-02
MD5: 75a1f69dfcc20f299be0a0b8104aa8ea SHA-1: 845d891989a137b5154c5661e131f422f55c3654 SHA-256: a4f26a1ab46d94c35c8691a3c225ace1820d796b45e8ffcf007936b0b2fc6875
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://wirut.co.za/YmrXLWy8?keyword=motorola%20mc5590%20driver PDF link annotation
    • https://bupekotarox.weebly.com/uploads/1/3/0/7/130739944/bfd10bd263288.pdfIn PDF document text
    • https://gapurosudezejug.weebly.com/uploads/1/3/5/9/135965954/pukapibuxixema-fabet-nekenagum-jasukap.pdfIn PDF document text
    • https://fupegaketivira.weebly.com/uploads/1/3/4/8/134887529/5f87b.pdfIn PDF document text
    • https://bagesasadav.weebly.com/uploads/1/3/4/3/134383367/6326269.pdfIn PDF document text
    • https://wavopotajulaja.weebly.com/uploads/1/3/4/6/134631105/8697567.pdfIn PDF document text
    • https://kavirozix.weebly.com/uploads/1/3/3/9/133999962/b0536512bda5005.pdfIn PDF document text
    • https://musazulawikale.weebly.com/uploads/1/3/5/3/135305526/5b512d6bddd5b.pdfIn PDF document text
    • https://gimoxawoja.weebly.com/uploads/1/3/1/3/131380550/5823666.pdfIn PDF document text
    • https://wifaborasumekig.weebly.com/uploads/1/3/2/6/132695644/4812214.pdfIn PDF document text
    • https://nufosizusom.weebly.com/uploads/1/3/4/6/134619592/lexevemadatixiw.pdfIn PDF document text
    • https://wifaborasumekig.weebly.com/uploads/1/3/2/6/132695644/zeladitifo.pdfIn PDF document text
    • https://zesadokalefon.weebly.com/uploads/1/3/2/6/132681767/gojoku.pdfIn PDF document text
    • https://pagivafadiniwum.weebly.com/uploads/1/3/7/5/137504817/2117202.pdfIn PDF document text
    • https://gudatopizesibi.weebly.com/uploads/1/3/4/4/134472507/4745563.pdfIn PDF document text
    • https://baxinumep.weebly.com/uploads/1/3/4/3/134366260/luxeliw.pdfIn PDF document text
    • https://zufojemesegogof.weebly.com/uploads/1/3/4/7/134753559/9e426e97.pdfIn PDF document text
    • https://zeregosuw.weebly.com/uploads/1/3/6/0/136055393/6db87e783efa4f.pdfIn PDF document text
    • https://dojeviwenos.weebly.com/uploads/1/3/4/4/134491393/154410.pdfIn PDF document text
    • https://talipugetajizan.weebly.com/uploads/1/3/4/8/134862074/a4d0df27.pdfIn PDF document text
    • https://wifaborasumekig.weebly.com/uploads/1/3/2/6/132695644/wurekitos_zedumovef_gapoluxaxufig.pdfIn PDF document text
    • https://sizasaligibi.weebly.com/uploads/1/3/4/5/134506534/fedobuwirozejez_zikuzogukab_jizovusojofuz.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_off0000c899.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c899.bin)

Related samples 8

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_off0000c899.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC899 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0000df3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF3D 10740 bytes
SHA-256: 73393f506560bd990dd501473a01c0488e289d1f7d48aeba901b1be5be6fe6c4
font_02_sfnt_off0000f80d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF80D 18156 bytes
SHA-256: 1a64e8bb5f42a0b7c3aac44a83f077a292cbba0d55f48eee5601f2b841da11d0

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