Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9e50d1dd9f69536…

MALICIOUS

PDF

77.7 KB Created: 2021-02-14 08:23:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: cfa15fd55c4dc3dd5ae5f87cb26b8e93 SHA-1: 817d2115c9cad8468088fee302cb16d325f5f19f SHA-256: e9e50d1dd9f695361e87ddf89c123dcb3fb1ca5da934417e9d7a0fb1c2c18abc
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://seumenha.ru/wix?keyword=building+java+programs+5th+edition+pdf PDF link annotation
    • https://cdn.sqhk.co/gokarunedod/heRhjgi/25091448266.pdfIn PDF document text
    • http://nizuvifoko.iblogger.org/asterix_legionario_italiano.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422377/normal_5fcd14b24c5a3.pdfIn PDF document text
    • https://cdn.sqhk.co/zabitokepum/ilibggJ/fisimigazilimave.pdfIn PDF document text
    • http://lumacy.site/93752915489vjg8g.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374373/normal_5ffd0ecc16f03.pdfIn PDF document text
    • http://xafupatudiki.22web.org/baghban_movie_1080p.pdfIn PDF document text
    • https://cdn.sqhk.co/kerosumumato/gagcnhe/80_s_country_music_love_songs.pdfIn PDF document text
    • http://yarrebitteh.online/7635958896030clf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468819/normal_600b3aff8a90e.pdfIn PDF document text
    • http://topsale.pro/65343877234l6bhw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378152/normal_6021bc7bd8ce3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466666/normal_601232b7b9a91.pdfIn PDF document text
    • https://cdn.sqhk.co/sulugedako/NgfAhiS/12178481149.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413017/normal_5fed9f24829f7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vigevelo.rf.gd/escape_room_game_answers_level_23.pdfIn PDF document text
    • http://ragigixo.epizy.com/20744300305.pdfIn PDF document text
    • https://s3.amazonaws.com/gixawetopoli/nazidisizobu.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_off0000f111.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF111 5764 bytes
SHA-256: 4ba8b9d053bb91ad72f6452387e7c114f7149cd0e1254b89c85ec670e2e8fb12
font_01_sfnt_off00010495.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10495 10780 bytes
SHA-256: f5258726ef8fb25a05d61b6794e7e36596c981208f7f3a0dd984960a1f57787a