Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6b10e490aa2c714…

MALICIOUS

PDF

64.2 KB Created: 2021-02-07 13:48:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 3d75ae1abf6ecf1c4de71606e05cccf4 SHA-1: 734bd46b7c16337695e16c77664219fb9f4ca2fd SHA-256: f6b10e490aa2c714a7a482be402a8ed178534478a2706ae44047208667120c51
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://baarspo.ru/wb?keyword=abilene%20reporter%20news%20classifieds%20rentals PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4375702/normal_601f534056fc5.pdfIn PDF document text
    • https://damemerivojed.weebly.com/uploads/1/3/4/3/134378109/cb33b3.pdfIn PDF document text
    • http://leafester.online/latevetusizalidankv712.pdfIn PDF document text
    • http://sluzhba1.net/69519116881byakr.pdfIn PDF document text
    • https://cdn.sqhk.co/wiwuwigo/ggVeMD6/lasesawiwulitiwum.pdfIn PDF document text
    • https://gifofelonapa.weebly.com/uploads/1/3/0/7/130775883/3043803.pdfIn PDF document text
    • https://cdn.sqhk.co/kurafuso/hh4lLif/leaf_ez_charge.pdfIn PDF document text
    • https://zezevavibafano.weebly.com/uploads/1/3/5/3/135325489/611509.pdfIn PDF document text
    • http://reduslim-ordina.site/florante_at_laura_fileztomy.pdfIn PDF document text
    • https://cdn.sqhk.co/mozejipakas/ihGgeRj/ruwovivotanabedoxaberu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4394082/normal_5fe33444a8230.pdfIn PDF document text
    • https://cdn.sqhk.co/dedejosewor/bTiijis/14457370141.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374177/normal_601bfbd2b3cff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379486/normal_601b45b95cc35.pdfIn PDF document text
    • https://xatuzagu.weebly.com/uploads/1/3/0/7/130738971/nivupadugo_kamuk.pdfIn PDF document text
    • https://katesagi.weebly.com/uploads/1/3/4/8/134864962/wizorodexi.pdfIn PDF document text
    • https://fajizaxaro.weebly.com/uploads/1/3/1/3/131381717/56bad7c3.pdfIn PDF document text
    • https://cdn.sqhk.co/zedazisem/heGihrD/gafajivofufivog.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000bdf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDF3 5372 bytes
SHA-256: 8e211dec70472bf3eed5d4f5ed41eaea65c7accaf45f931f3a03065660561df1
font_01_sfnt_off0000d051.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD051 10320 bytes
SHA-256: 4ad59ab28f3f45b9928df2c1e0bf4495a6ee8e2bae06635c40b1954934e39052