Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4af073b9ca01dc0…

MALICIOUS

PDF

69.8 KB Created: 2021-02-16 03:05:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 317c80a4cf2a526586923b815ef6ddfe SHA-1: 26bbeda5dc4ebcbe2b6c4d4dd14ba9101ec76dee SHA-256: e4af073b9ca01dc0f28f89ed15ddfeda1486e0d56deb2b4b50cf32c54ac65e45
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/wix?keyword=skullcandy+crusher+manual PDF link annotation
    • https://konevolog.weebly.com/uploads/1/3/1/6/131606720/pamipotegenosumugala.pdfIn PDF document text
    • https://xisuludibu.weebly.com/uploads/1/3/5/3/135300694/860735ea0e.pdfIn PDF document text
    • https://bodonovovo.weebly.com/uploads/1/3/1/6/131607174/nigofu-vejuvokavubu.pdfIn PDF document text
    • http://shop-kid-toys.online/the_new_gate_schnee_and_shinfmkbv.pdfIn PDF document text
    • https://cdn.sqhk.co/jabupexipa/jhegdhe/zusakazusejuvugo.pdfIn PDF document text
    • https://cdn.sqhk.co/mifijizudi/gdoOWie/tujoziravelazekumukubolot.pdfIn PDF document text
    • https://fuzakeraza.weebly.com/uploads/1/3/4/8/134848422/1202673.pdfIn PDF document text
    • http://netewe5.xyz/gajetixitazejewofu4wu7r.pdfIn PDF document text
    • http://xefemile.22web.org/chadar_harjit_harman_video_song.pdfIn PDF document text
    • https://navojinalano.weebly.com/uploads/1/3/4/7/134755450/konutawekofo-zokaximezadanod-wowuxa.pdfIn PDF document text
    • http://borolepejawodur.22web.org/hyper_light_drifter_guide_south.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zitamekoliliwe.rf.gd/50909142254.pdfIn PDF document text
    • http://kaxemazetoralib.rf.gd/90914361876.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_off0000d4d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4D6 5448 bytes
SHA-256: 7d6e05e14a4c08935977b9f4fae576ddc19ce05143c963f6343af6b150104a29
font_01_sfnt_off0000e741.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE741 10404 bytes
SHA-256: 398d1659832446b988fe08055b14d81b932ef94acabe9af2e6f15235e7005891