Malicious PDF — malware analysis report

Static analysis result for SHA-256 f75829dd0ef8add4…

MALICIOUS

PDF

63.9 KB Created: 2021-02-11 23:55:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c9ef5dff8f6a135f98d94ca61c357cc8 SHA-1: 7c48bdde305674e9feb4730a5a785b746c09d73d SHA-256: f75829dd0ef8add4d8df2d58cd73e95c043edc1b5b68d4c317a6c4eabd1bf064
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://jacksth.ru/123?utm_term=wow+classic+priest+spell+progression PDF link annotation
    • http://gosologesegob.iblogger.org/django_template_context_render.pdfIn PDF document text
    • https://dosukasexu.weebly.com/uploads/1/3/1/6/131637789/9270574.pdfIn PDF document text
    • http://static-start.top/18667944569y7j4q.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427499/normal_5fef625f299e8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4529095/normal_5fde0594a2d1f.pdfIn PDF document text
    • https://cdn.sqhk.co/jifedibodo/ejfEDgc/one_stop_financial_services_case_summary.pdfIn PDF document text
    • https://cdn.sqhk.co/xenojepezere/fBgcQQd/80662894078.pdfIn PDF document text
    • https://vorufiduwesonuf.weebly.com/uploads/1/3/5/3/135314955/2320468.pdfIn PDF document text
    • https://rosunitekuw.weebly.com/uploads/1/3/1/3/131384708/mefilip.pdfIn PDF document text
    • http://reliables.ru/bkash_agent_app_linkyb8u1.pdfIn PDF document text
    • https://cdn.sqhk.co/vasegodesazu/8hiGpnK/snake_river_stampede_bbq_sauce.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wewapozolebupo.epizy.com/mosijodipemeloxiriwed.pdfIn PDF document text
    • http://zelanokavekav.rf.gd/votoxupemumilupadejo.pdfIn PDF document text
    • http://fufinekudag.epizy.com/77821695639.pdfIn PDF document text
    • http://sevetise.rf.gd/zatunewo.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_off0000be9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE9B 5208 bytes
SHA-256: caccdb7770f6649eeea393ab569ff8155b32962abf7bc3051aa088f4e5b601f6
font_01_sfnt_off0000d07c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD07C 10012 bytes
SHA-256: e7a3e72877e316ea01bf9e51cd669cd5396d70058975df9adaa572c90f78f69e