Malicious PDF — malware analysis report

Static analysis result for SHA-256 629307d41b2d8ea7…

MALICIOUS

PDF

88.2 KB Created: 2021-03-04 16:30:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 3ccea85afc8109fee309bddd13fc6af9 SHA-1: 5dd8271a5539a1c233207a0f9b06e1f67f4c334c SHA-256: 629307d41b2d8ea789e6a80240b4d7c5ec244173145cbb2288bef657a5db655c
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://lozipotod.ru/strik?utm_term=la+biblia+catolica+latinoamericana+gratis PDF link annotation
    • https://cdn.sqhk.co/xuxovunevo/XpHqJpD/share_market_trading_courses_in_kolkata.pdfIn PDF document text
    • http://smirno.life/73752655160fgksh.pdfIn PDF document text
    • http://spainwow.pro/65045847454a29dy.pdfIn PDF document text
    • http://lishop.site/the_outer_limits_the_sandkings_part_1ntklf.pdfIn PDF document text
    • https://cdn.sqhk.co/worenora/Rhj3fgc/draughtsmanship_courses_in_mauritius.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a256b0f-4657-4297-ba33-ee5d9cba95f8/51258919991.pdfIn PDF document text
    • https://s3.amazonaws.com/miledu/dilonebojeminarafisexiloz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/24a84c2b-7c1b-444a-b15e-212d9b4cfb89/75688976976.pdfIn PDF document text
    • https://5634f520-c25d-421d-ab67-3d94505d13cb.filesusr.com/ugd/1b85ab_6aac4ef66f104c95b5f0b3ddee913f05.pdf?index=trueIn PDF document text
    • https://254a6a59-343e-4b7e-907c-c4819e171fff.filesusr.com/ugd/decf6f_9a1fa1eb617b4cafbf46756e8903d124.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/096c2da9-b9dd-4f72-a286-0b41f85c44a0/fuzofaruvetezarokaripoda.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/91fb26e2-1fd7-4cea-bb9c-55ea519fbe0e/17477137623.pdfIn PDF document text
    • https://s3.amazonaws.com/tigewibejageju/72778867894.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/446b9193-d732-4a02-befa-cacfa6cc822f/msi_a68hm-e33_v2_drivers_windows_7_64bit.pdfIn PDF document text
    • https://7fe1f042-206b-4735-a408-f56337efeeb4.filesusr.com/ugd/d34b51_652bd777d2b140f3a925fa0f7816403b.pdf?index=trueIn PDF document text
    • https://0b21792c-a699-4cf4-8833-5910c6ad58af.filesusr.com/ugd/b0b521_0a076eb83a84497fb35049e4650d1c17.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/26be9caa-c81e-4ec8-8ab2-024f1f2347d0/lefabopojojogemododij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/01261ecb-a068-4a52-b773-f33e9590a3e0/piwevogevubiwajute.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_off00011989.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11989 5200 bytes
SHA-256: addd274f2cd6827716433be8755b10599db4966aaecac316193a75d5da5d3601
font_01_sfnt_off00012b23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B23 12024 bytes
SHA-256: 1381eb5a661abb69d2205917e6686ba7719c5003a327b8cc5b5549e579c241c8

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