Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e74152d46393864…

MALICIOUS

PDF

69.1 KB Created: 2021-02-10 14:28:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ac8aa102cd719e1cc417a58f1ecfd6eb SHA-1: 89fa98abe4eb40c16771f5dfd9e41b27898c1fe7 SHA-256: 3e74152d46393864031695c135fb0e6c7f2d600afcd43a7bb6911acbfe0ac46d
186 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.
  • 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://druttle.ru/123?utm_term=blob+architecture+francais PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4496826/normal_5ff5638e08c46.pdfIn PDF document text
    • https://mafetoga.weebly.com/uploads/1/3/0/8/130874134/9795924.pdfIn PDF document text
    • https://cdn.sqhk.co/lazujanaziri/bheifhj/piluwobetuju.pdfIn PDF document text
    • http://igcopyrightclient.com/simple_proforma_invoice_template_xlseib0c.pdfIn PDF document text
    • https://suzotavuni.weebly.com/uploads/1/3/4/7/134765747/mubaga.pdfIn PDF document text
    • https://jedexapotup.weebly.com/uploads/1/3/4/4/134472831/ed9ae81749ab22f.pdfIn PDF document text
    • https://giderolimarova.weebly.com/uploads/1/3/4/0/134098849/3c14377c.pdfIn PDF document text
    • https://jukafubu.weebly.com/uploads/1/3/0/8/130874261/9997533.pdfIn PDF document text
    • https://bojibelatos.weebly.com/uploads/1/3/4/0/134040608/kagejonitevid.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403817/normal_6004e90fb038b.pdfIn PDF document text
    • https://kojazuzok.weebly.com/uploads/1/3/1/4/131438397/ruzasibotuteluwuli.pdfIn PDF document text
    • https://cdn.sqhk.co/movozuba/dgjfijR/basketball_throw_technique.pdfIn PDF document text
    • https://pemugaladesav.weebly.com/uploads/1/3/5/3/135307247/609d8c7c04.pdfIn PDF document text
    • https://ranedesipa.weebly.com/uploads/1/3/1/3/131398497/4080363.pdfIn PDF document text
    • https://cdn.sqhk.co/xawuboma/5engdRv/59712226494.pdfIn PDF document text
    • https://notesorujul.weebly.com/uploads/1/3/1/4/131407176/9870346.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tinodaxaxaduj.rf.gd/sajotujiturelifezovivuvuw.pdfIn PDF document text
    • http://fepefemed.rf.gd/muxomazemonogogisesep.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_off0000d37e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD37E 5160 bytes
SHA-256: 0f32fa1c66db8ea67ad4c295910d281075dc91c52bb948244e5bae3295dbe93f
font_01_sfnt_off0000e507.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE507 10124 bytes
SHA-256: 9a5b4420e481bf9444ad5a7efb0085df38a3526e052c1acf9a4f37c0457c6c02

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