Malicious PDF — malware analysis report

Static analysis result for SHA-256 88b8fb533af2fc06…

MALICIOUS

PDF

82.3 KB Created: 2022-04-10 02:38:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: 2d5bb0456af3caf907e475477726d07d SHA-1: 2c381ff379978ff2910427687fcbab85783d6b73 SHA-256: 88b8fb533af2fc067cc1c88d5abc75a23af6fe337674f03f4177de1051f59c64
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9970

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://cafij.co.za/YmrXLWy8?keyword=boy%20scout%20merit%20badges%20for%20eagle PDF link annotation
    • https://mivubifazexaj.weebly.com/uploads/1/3/4/3/134381565/vamopegawa-jakuvo-wafofajuzape.pdfIn PDF document text
    • http://posekatzahradu.cz/files/file/givobefajo.pdfIn PDF document text
    • https://cuisinescartier.ca/upload/editor/file/vopejenisugubofamozezena.pdfIn PDF document text
    • https://zalopajozi.weebly.com/uploads/1/3/1/4/131453352/bojagobosirabefifezu.pdfIn PDF document text
    • https://kosituvote.weebly.com/uploads/1/4/1/2/141279504/vixaf.pdfIn PDF document text
    • https://jekaboda.weebly.com/uploads/1/3/5/3/135398795/49ccb7.pdfIn PDF document text
    • http://camberwelltaxi.com/survey/userfiles/files/buvikadavepenumig.pdfIn PDF document text
    • http://kzlo.pl/fotki/fotki/file/86504437364.pdfIn PDF document text
    • https://wifojulov.weebly.com/uploads/1/3/1/4/131438113/dolim_kivuf_wiguxa.pdfIn PDF document text
    • https://hoya.hr/UserFiles/file/51404687740.pdfIn PDF document text
    • https://punafatig.weebly.com/uploads/1/3/1/4/131408139/9645961.pdfIn PDF document text
    • http://condicionamentofisico.com/arquivos/file/jiguvekopeku.pdfIn PDF document text
    • https://akvanova.ru/sites/default/files/nasizunerodigakomexuberar.pdfIn PDF document text
    • https://dokodajibebabek.weebly.com/uploads/1/3/2/3/132302773/didudutotofa_xevosatajoj_bogegadit.pdfIn PDF document text
    • http://babijie.com/upload_fck/file/2022-2-5/20220205085009931986.pdfIn PDF document text
    • https://sazejorewisiboj.weebly.com/uploads/1/3/4/4/134459615/e5e45f0a1.pdfIn PDF document text
    • http://bowlingkillers.com/imgdb/files/14578126276.pdfIn PDF document text
    • https://bsff.com/kcfinder/upload/files/25303452397.pdfIn PDF document text
    • https://lujumibuxoze.weebly.com/uploads/1/3/5/3/135350241/3053881.pdfIn PDF document text
    • https://nerasepivud.weebly.com/uploads/1/4/1/2/141288715/jiloxazilokani.pdfIn PDF document text
    • https://betenrealestate.com/sites/default/files/file/lezotetevugagurugeranobi.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_off0000df3a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000df3a.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000df3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF3A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f751.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF751 11120 bytes
SHA-256: 04c1edf22f1ec1387b4956de7d926f841cd096d862b108e4aad4f4c048008125
font_02_sfnt_off0001112d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1112D 16524 bytes
SHA-256: eaf7c5d12b6945a7192eccf4edc12c23feaf8e56398f93befc38d18b46cee948