Malicious PDF — malware analysis report

Static analysis result for SHA-256 460acf7cf994c1e6…

MALICIOUS

PDF

71.7 KB Created: 2021-02-26 10:36:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: fdba022fb8b4469df8d62371446ceab4 SHA-1: 0a915f8c4fcdde271413bd9c22dc36e55a6843af SHA-256: 460acf7cf994c1e6b67731876aff54e1ff6684ad52583a1f550f7c2226ad1518
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://druttle.ru/award?keyword=human+resource+management+theories+and+models+pdf PDF link annotation
    • https://cdn.sqhk.co/xajevedu/igggeTx/free_poly_low_poly_art_puzzle_game.pdfIn PDF document text
    • https://cdn.sqhk.co/revinoxu/jiewPij/19079505535.pdfIn PDF document text
    • https://cdn.sqhk.co/fatepotax/GHjgT1Z/92637315258.pdfIn PDF document text
    • http://bewewafip.scienceontheweb.net/nibez.pdfIn PDF document text
    • http://suziterunedoloj.sportsontheweb.net/29047009627.pdfIn PDF document text
    • https://cdn.sqhk.co/figegixo/GjdEjbD/gisefapug.pdfIn PDF document text
    • https://cdn.sqhk.co/tazakabebilo/8ghgg4H/lesowusopikofixaful.pdfIn PDF document text
    • https://fakilopatezi.weebly.com/uploads/1/3/1/6/131606638/pobomuxapi.pdfIn PDF document text
    • https://cdn.sqhk.co/xamowepap/dwwhfic/kokigebifitibuge.pdfIn PDF document text
    • https://pagazamis.weebly.com/uploads/1/3/5/3/135310118/5371659.pdfIn PDF document text
    • https://cdn.sqhk.co/womibakok/fDDhdRO/tiles_stores_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/wazilisiko/cbdUjie/global_war_simulation_strategy_war_game_premium_apk.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/pogolo/joomla_templates_creator.pdfIn PDF document text
    • https://s3.amazonaws.com/mujevubutukoxu/percy_jackson_3_book_online.pdfIn PDF document text
    • https://s3.amazonaws.com/dexodekelaseki/meendum_amman_video_song_free.pdfIn PDF document text
    • https://s3.amazonaws.com/gifiz/coping_with_loneliness_worksheet.pdfIn PDF document text
    • http://lobopekogolo.onlinewebshop.net/easy_ratio_math_problems_with_answers.pdfIn PDF document text
    • http://pojozija.onlinewebshop.net/context_clues_worksheets_4th_grade.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_off0000dc2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC2D 5528 bytes
SHA-256: ec1368a3b41835e8f76411a9be9703817055ea1ec4c77a1a038f5b87a379c4ea
font_01_sfnt_off0000eec5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEC5 10228 bytes
SHA-256: bbb1df9c0e10227db475063b7cc590f7e10056e47f1e5d55e95f4b1c80a7b894