Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b8963eff4475fc4…

MALICIOUS

PDF

73.1 KB Created: 2021-02-14 01:23:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: eae026687804249432d2f26023379b77 SHA-1: d7ae8d171a47cdd7f2b238ef4ba4af95fd5aa564 SHA-256: 6b8963eff4475fc4a95bbbb6e6d1050bf5c7c5441268b17e5a621f09a2ffcbec
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://jottigo.ru/wb?keyword=cakephp%20global%20date%20format PDF link annotation
    • http://pagebake.com/sustainable_living_guide_austin_tx4xead.pdfIn PDF document text
    • http://smartcreditscore.info/53092180947qw2eg.pdfIn PDF document text
    • http://servicesforsupport.com/62689517334fe25m.pdfIn PDF document text
    • http://dkmz3.club/springer_handbook_of_roboticssddal.pdfIn PDF document text
    • http://emirofficialzm.com/falamevekebanowugoral88vga.pdfIn PDF document text
    • http://im-marceting.site/scary_boss_3d_apkbn12r.pdfIn PDF document text
    • http://citimart.online/73813535457k7s8u.pdfIn PDF document text
    • http://premiumpornclips.com/70978890268eahgs.pdfIn PDF document text
    • http://hotita.space/budivadugewixizatesuvoriwfzg44.pdfIn PDF document text
    • http://leyloften.online/temperate_forest_biotic_factorsob29a.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/mefovu/36899285721.pdfIn PDF document text
    • https://s3.amazonaws.com/nedijowewoded/69156440153.pdfIn PDF document text
    • https://s3.amazonaws.com/temujonuwu/leeds_city_council_private_landlords_guide.pdfIn PDF document text
    • http://pojakopov.epizy.com/73982874380.pdfIn PDF document text
    • http://xukajipovaru.epizy.com/furofuwozokulukopomofatez.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_off0000df60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF60 5388 bytes
SHA-256: 8255dcfff318a7b784314926676bcdbf2238318cab6d1d781f6d7c2c8faf7666
font_01_sfnt_off0000f188.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF188 11296 bytes
SHA-256: cc97b05bb44aff7441924aa1c9b01ceb5cb0fa6591fd328b1c50c6c54b8f1098