Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6140e6b1c373f48…

MALICIOUS

PDF

70.9 KB Created: 2022-03-31 09:36:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-15
MD5: 794424a0e7dbb42e0a3e55a65bcf392d SHA-1: ad187e24dd470f4da5ddfe05fb346874649fd3dc SHA-256: b6140e6b1c373f4838efac2b42977c8b475f77f8244c31d5f53edcbdc084e7d6
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://mifuj.co.za/YmrXLWy8?keyword=how%20to%20reset%20d PDF link annotation
    • http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623032757195d---kakawatuduso.pdfIn PDF document text
    • https://activepymes.com/pub/file/70152255560.pdfIn PDF document text
    • https://www.luthier-auxerre.fr/ckfinder/userfiles/files/84796235888.pdfIn PDF document text
    • https://nunamifeko.weebly.com/uploads/1/3/2/7/132740424/wepisusowi-penakaxopid-vufakexevape-jumubafeza.pdfIn PDF document text
    • http://auto-fiesta.ru/upload/files/duninemizogigajekaxo.pdfIn PDF document text
    • http://bm-shower.com/userfiles/files/fosemezavadus.pdfIn PDF document text
    • https://badrivishal.com/media/wojezibezopu.pdfIn PDF document text
    • https://wofefuveti.weebly.com/uploads/1/3/4/3/134348775/fuxomedaburelez.pdfIn PDF document text
    • http://medwin.kr/userData/board/file/supuwid.pdfIn PDF document text
    • https://kuvitarige.weebly.com/uploads/1/3/4/0/134095916/7303728.pdfIn PDF document text
    • https://betuvumog.weebly.com/uploads/1/3/1/1/131163564/firudajeb.pdfIn PDF document text
    • https://katudiwuf.weebly.com/uploads/1/3/6/0/136006549/d3fe075c58004.pdfIn PDF document text
    • https://hoavily.com/uploads/files/1074199385.pdfIn PDF document text
    • https://chauphongasia.com/wp-content/plugins/super-forms/uploads/php/files/l7ifqvbr649qbvjph9kei70au9/pikadigiviluvokejulitase.pdfIn PDF document text
    • https://dobopekajami.weebly.com/uploads/1/3/4/3/134314215/libalil-fabanexi-metif-zupuwesimobumib.pdfIn PDF document text
    • https://un7un9b3rl1pa7-99.com/contents/files/mekulexirini.pdfIn PDF document text
    • https://fogufufizanalu.weebly.com/uploads/1/3/0/8/130813948/2306068.pdfIn PDF document text
    • http://baikalsg.ru/uld/files/17986637212.pdfIn PDF document text
    • http://chupanhnoithat.vn/upload/files/53834406676.pdfIn PDF document text
    • https://lisewukalog.weebly.com/uploads/1/3/4/4/134435391/c193eb44.pdfIn PDF document text
    • https://vefajuvajodal.weebly.com/uploads/1/3/6/0/136094574/8595076.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_off0000b351.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b351.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b351.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB351 16444 bytes
SHA-256: 4e44a066594ae4ab8106af4436666da8b55d63b64e3e481a93108a077b22c2c6
font_01_sfnt_off0000de18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE18 10636 bytes
SHA-256: 9434743bbcaa3aae8a383190e1a1ea920e0276af89ba85dfca0fae622cda2572
font_02_sfnt_off0000f6b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6B0 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336