Malicious PDF — malware analysis report

Static analysis result for SHA-256 9457ae732c995d1f…

MALICIOUS

PDF

71.5 KB Created: 2021-02-17 02:00:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 38321adf2e678d486fce8b51cc5d169f SHA-1: 1e04fc9d54cc61115a595635144254bd12765074 SHA-256: 9457ae732c995d1fb22dd5f5ac8c6e23dabbb80589cdb0fd9ce38e472260fc20
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://baarspo.ru/wix?keyword=cisco+email+security+ordering+guide PDF link annotation
    • http://simcars.ru/2637325210428am8.pdfIn PDF document text
    • http://egosikenclub.com/86845388683huz00.pdfIn PDF document text
    • https://cdn.sqhk.co/mifodirula/ihjjfii/driving_simulator_games_xbox_one.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393625/normal_5fce06824836f.pdfIn PDF document text
    • https://cdn.sqhk.co/lesepivir/hem5gjb/32011146668.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369653/normal_5fdb17303428d.pdfIn PDF document text
    • http://simultaneously.space/tebosatowijoeng59.pdfIn PDF document text
    • https://cdn.sqhk.co/vimexuda/fgjQhid/fumubawurevujaluloxivebi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376357/normal_602396d9a1ab6.pdfIn PDF document text
    • https://cdn.sqhk.co/fizuborugas/jMbjghh/dragon_quest_la_quete_de_dai_crunchyroll.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/jifesu/36742558346.pdfIn PDF document text
    • http://telenusu.epizy.com/numerical_reasoning_test_questions_and_answers_australia.pdfIn PDF document text
    • https://s3.amazonaws.com/bufipevuril/pufivomixolotonofofemomeb.pdfIn PDF document text
    • http://wilafeduzavedew.epizy.com/petakoz.pdfIn PDF document text
    • http://dogugamegomijit.rf.gd/load_balancer_software_for_windows_free.pdfIn PDF document text
    • https://s3.amazonaws.com/batiku/wegitaru.pdfIn PDF document text
    • https://s3.amazonaws.com/waxegatulo/58395696101.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_off0000dbf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBF5 5268 bytes
SHA-256: 72428458f4d6679a21145ad82ab4086559e14f13c3e5fc8d8646d50468e479d1
font_01_sfnt_off0000edca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDCA 10192 bytes
SHA-256: d02550613c6563179e756489e95a39e891c188b0043c48a0b3676fd2ab847dd8