Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa85d41754740b3e…

MALICIOUS

PDF

70.7 KB Created: 2022-03-31 09:13:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-07
MD5: 251c732b62acc950736d20e371d99688 SHA-1: 355ca9c97af3a137476663f838605c4d7a2ee68c SHA-256: aa85d41754740b3e02a28e57f9f3829a245023ba4a9e66b263c9813fd34d93eb
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://fecuq.co.za/YmrXLWy8?keyword=closers%20survival%20guide%20en%20espa%C3%B1ol%20pdf PDF link annotation
    • https://soxokememomoj.weebly.com/uploads/1/3/1/4/131438280/6255790.pdfIn PDF document text
    • https://fawurefo.weebly.com/uploads/1/3/4/4/134441885/4651681.pdfIn PDF document text
    • https://jipunusib.weebly.com/uploads/1/3/0/8/130813609/213cf15229d.pdfIn PDF document text
    • https://linezeludamaxen.weebly.com/uploads/1/3/4/3/134340908/697283.pdfIn PDF document text
    • https://tunupufimudodo.weebly.com/uploads/1/3/4/3/134324073/govewuxadula_benas_wubasumilafis.pdfIn PDF document text
    • http://cross-winds.in/upload/contents/images/images/nosozimaxijuvawi.pdfIn PDF document text
    • http://arniuniversity.in/ci/userfiles/files/zalezarezigepunu.pdfIn PDF document text
    • https://matasomorat.weebly.com/uploads/1/3/4/4/134492922/8829551.pdfIn PDF document text
    • http://jdjcnc.com/upfolder/e/files/20220328144946.pdfIn PDF document text
    • https://budekimezarusij.weebly.com/uploads/1/3/5/9/135964348/8854089.pdfIn PDF document text
    • https://vugilove.weebly.com/uploads/1/3/4/2/134234765/e05952803b273b.pdfIn PDF document text
    • https://naroxelilokatud.weebly.com/uploads/1/3/1/3/131384214/dofodimoz.pdfIn PDF document text
    • https://nidukonijeso.weebly.com/uploads/1/3/1/3/131381088/gozebekaz.pdfIn PDF document text
    • https://pajedurozibije.weebly.com/uploads/1/3/4/4/134446399/3d3ffe33.pdfIn PDF document text
    • http://ilkconstruction.com/Images/Media/files/55349477823.pdfIn PDF document text
    • https://xubisimas.weebly.com/uploads/1/3/4/7/134769706/kavojiv.pdfIn PDF document text
    • https://gavewenuwimuf.weebly.com/uploads/1/3/4/3/134318232/595f33.pdfIn PDF document text
    • https://sukaxivex.weebly.com/uploads/1/3/4/8/134895869/wobiwefegawebi-zuvugifu.pdfIn PDF document text
    • https://sapusogupe.weebly.com/uploads/1/4/1/2/141282434/f7ffb49fb0.pdfIn PDF document text
    • https://luvabuzizav.weebly.com/uploads/1/3/5/2/135294148/didevamikev_wafixixazuvizes_farupurow_bopefak.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_off0000aac2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAAC2 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0000c166.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC166 10980 bytes
SHA-256: 16aecb1f8d736b82b9f21177509c4ff0fc8857d61608a10505ef9237f0550715
font_02_sfnt_off0000da85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA85 18796 bytes
SHA-256: 107820309f768fb5d5264b548c4186326dce0525b9c0711952258d2ffcf8c1cd

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