Malicious PDF — malware analysis report

Static analysis result for SHA-256 425aab28a73ccb15…

MALICIOUS

PDF

88.7 KB Created: 2022-04-19 16:01:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: c35d2ade5346f8fe4e9c487d24d2e8a8 SHA-1: b28bb23cd0bd941471e05c6cdcf5ca51039a7185 SHA-256: 425aab28a73ccb15f039f64b95081a45fa50c7a25d2cdcbac194af8e06be24d3
186 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
  • 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://lazav.co.za/YmrXLWy8?keyword=personajes%20de%20rebeli%C3%B3n%20en%20la%20granja%20ya%20qui%C3%A9n%20representan PDF link annotation
    • https://dotolisode.weebly.com/uploads/1/3/4/6/134616401/97f7ce1.pdfIn PDF document text
    • https://domekemukud.weebly.com/uploads/1/3/5/3/135327345/4b88e70338dc50.pdfIn PDF document text
    • https://dojexivosofu.weebly.com/uploads/1/3/4/3/134348646/a5409e2877.pdfIn PDF document text
    • https://zefubolinela.weebly.com/uploads/1/3/4/3/134318842/nuxunopotomovumoguj.pdfIn PDF document text
    • https://lovepugijojuz.weebly.com/uploads/1/3/4/6/134672364/edc1116d6d469.pdfIn PDF document text
    • https://nemabofafuz.weebly.com/uploads/1/3/5/3/135389169/jutano_zuwixam_dexasis_nixavesafetemok.pdfIn PDF document text
    • http://steelbo.com/uploads/admins/u0/files/20220215024907.pdfIn PDF document text
    • https://vozuviwugil.weebly.com/uploads/1/3/2/6/132681927/1429611.pdfIn PDF document text
    • https://rukururage.weebly.com/uploads/1/3/0/9/130968917/dowevunulalakutog.pdfIn PDF document text
    • https://lelugiva.weebly.com/uploads/1/3/4/5/134508788/e5c1cd70a712b5.pdfIn PDF document text
    • https://xifekuvazunavel.weebly.com/uploads/1/3/4/7/134748582/xevuwo-vezeso.pdfIn PDF document text
    • https://tusezewepoxir.weebly.com/uploads/1/3/4/3/134339989/9259210.pdfIn PDF document text
    • https://dubelife.weebly.com/uploads/1/3/4/3/134379826/478786.pdfIn PDF document text
    • https://ratomewupevo.weebly.com/uploads/1/3/4/2/134234569/b91c12fae9828.pdfIn PDF document text
    • https://lolinirapoxete.weebly.com/uploads/1/4/1/4/141495114/1227261.pdfIn PDF document text
    • http://fuku-zou.com/userfiles/file/18892177583.pdfIn PDF document text
    • https://julotovodirol.weebly.com/uploads/1/3/4/5/134522883/b31d3.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f42b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF42B 11492 bytes
SHA-256: fcb931fc0da33b3779c9e9c93dac4e01463f369d3a6d377783896eba8330f603
font_01_sfnt_off00010e2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E2D 17260 bytes
SHA-256: c46cd0be55fc7a50460cb2cfcc192e5c5ead4620d7a692c1d2984e8da5b02673
font_02_sfnt_off000139df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x139DF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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