Malicious PDF — malware analysis report

Static analysis result for SHA-256 941b84b31bc34520…

MALICIOUS

PDF

80.0 KB Created: 2022-03-29 19:41:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 84c20fbe6884f422a35948e1241cefb6 SHA-1: 9b7e14adb8247526d9aa5ba5418e731b65687865 SHA-256: 941b84b31bc3452090c47bf22ef8f2a25799f4a7bd8b89aacb1851d7cfc5d5fe
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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=tecumseh%20engine%2012%20hp PDF link annotation
    • https://pisubemiduburor.weebly.com/uploads/1/3/1/3/131380627/4520530.pdfIn PDF document text
    • http://hengfengpaper.com/filespath/files/20220221155531.pdfIn PDF document text
    • https://wietsevoermans.nl/ckfinder/userfiles/files/tisegulane.pdfIn PDF document text
    • https://favasonod.weebly.com/uploads/1/3/2/7/132740296/lezazewafigujusatow.pdfIn PDF document text
    • https://bifixebuwo.weebly.com/uploads/1/3/0/7/130776276/f3d8cbb6b225.pdfIn PDF document text
    • https://gamidilagadam.weebly.com/uploads/1/3/4/3/134339960/kugofikuxesen-rekatedosorog.pdfIn PDF document text
    • http://on-video.com/movies/movie_data/file/vasomobafumuzafadibix.pdfIn PDF document text
    • https://nikulagoronol.weebly.com/uploads/1/3/2/3/132303117/purovomodudotamifi.pdfIn PDF document text
    • https://vopozurizezeta.weebly.com/uploads/1/3/4/0/134012331/zakudofode.pdfIn PDF document text
    • https://uangraja.com/contents/files/guleki.pdfIn PDF document text
    • https://wejanorop.weebly.com/uploads/1/3/2/3/132303338/4782757.pdfIn PDF document text
    • https://sewemojokevapu.weebly.com/uploads/1/3/4/4/134463988/6985034.pdfIn PDF document text
    • https://www.nasasquirrel.org/kcfinder/upload/files/jabuzaxavibimusabebezewaz.pdfIn PDF document text
    • http://guide-eq.com/userfiles/file/20220206034736_7j8yuv.pdfIn PDF document text
    • http://dobre-jaja.com/Upload/file/86377607198.pdfIn PDF document text
    • https://viwitilabepimep.weebly.com/uploads/1/3/2/6/132695477/satatetipigup-zipizadapega.pdfIn PDF document text
    • https://sorawujij.weebly.com/uploads/1/3/4/6/134671526/5831101.pdfIn PDF document text
    • http://etalentlink.com/uploadfile/file///2022031809452314.pdfIn PDF document text
    • https://govewusig.weebly.com/uploads/1/3/0/9/130969429/6a3497bb7a5a.pdfIn PDF document text
    • http://liebherr-tr.com/userfiles/file/wopininosov.pdfIn PDF document text
    • https://unique.global/wp-content/plugins/super-forms/uploads/php/files/85cb3198e05504a0b912086d9332aff7/53903337304.pdfIn PDF document text
    • http://kashima.cc/userfiles/file/49545912898.pdfIn PDF document text
    • https://basuxebuj.weebly.com/uploads/1/3/1/3/131379820/1227041.pdfIn PDF document text
    • http://skisun.it/userfiles/files/24380215766.pdfIn PDF document text
    • https://lutafutenitar.weebly.com/uploads/1/3/4/3/134381418/fufeni_xisoz_topojejebopu_koniwupisodar.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_off0000d658.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD658 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0000ecfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECFC 10528 bytes
SHA-256: f0faac56e293a86d21d47724023fdb5ba8d9a191cce42833cacf1f981bcfa540
font_02_sfnt_off000104d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104D9 17460 bytes
SHA-256: a6b3a7c9b25d7acf3f83a3bcf64d4b4ab47572ae7fbc50771c1b915e6ea3b94d

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