Malicious PDF — malware analysis report

Static analysis result for SHA-256 8172955f45133634…

MALICIOUS

PDF

71.0 KB Created: 2021-02-23 08:09:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 881a8b62cb4ce8cffd61c5d184e5ef8b SHA-1: 62892f63ca45c51a9b6f5b91e7c1e0eaa1a3c2e7 SHA-256: 8172955f45133634338e56e19f4abe1e5767a48325e31143a3887698af36dfe4
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jacksth.ru/aws?utm_term=apa+movie+format PDF link annotation
    • http://gakekasabikav.22web.org/love_wrecked_full_movie_mp4.pdfIn PDF document text
    • https://cdn.sqhk.co/kewawukufiju/1givFrq/50397080707.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501037/normal_603064c32c81c.pdfIn PDF document text
    • https://cdn.sqhk.co/pigevikuwi/xLnhaGu/tekowubipezagirijumo.pdfIn PDF document text
    • https://cdn.sqhk.co/ganuniwiku/amTijKB/jojo_arcade_game_download.pdfIn PDF document text
    • http://gayerkan.com/64715416442nq8pr.pdfIn PDF document text
    • http://vakafubetax.iblogger.org/is_death_cure_the_last_maze_runner_movie.pdfIn PDF document text
    • https://cdn.sqhk.co/pepegejivo/aiegiCN/wigasuv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385012/normal_60244cd674a87.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446914/normal_5fe16b26789d5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/metakibeme/rovon.pdfIn PDF document text
    • https://s3.amazonaws.com/tinajabizoreguf/comparative_superlative_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/jodabiladezot/24033998639.pdfIn PDF document text
    • https://s3.amazonaws.com/wekibik/wilderness_first_aid_online.pdfIn PDF document text
    • http://juvejuvikanu.epizy.com/78554157192.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000da8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA8D 4888 bytes
SHA-256: 211f0b3be41257439e9482c161dc0edde91c6ce065c2b7cbf3b718932586cb84
font_01_sfnt_off0000eb22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB22 10640 bytes
SHA-256: e9e276896fd26c85fb2b81d11e15f204b24b69efeed6a7a918d746571ec83bf5