Malicious PDF — malware analysis report

Static analysis result for SHA-256 67f8fd5985fdf782…

MALICIOUS

PDF

69.3 KB Created: 2021-02-23 13:30:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: f0a6b752edc85b6bffa4e11a379b1b86 SHA-1: faa9e1e3fa7cf6b93c3faaa558ea56899fdb73e4 SHA-256: 67f8fd5985fdf782416f41594cc61487faaa89c4d053369a2fd4b94694a300b2
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=examples+of+radiation+heat+transfer PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4417024/normal_5fce9b7c6defd.pdfIn PDF document text
    • https://pabimoju.weebly.com/uploads/1/3/3/9/133997489/vutetajelisejafufa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417222/normal_600cf57d0936f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4530937/normal_5fda89502b603.pdfIn PDF document text
    • https://fagudigozupubu.weebly.com/uploads/1/3/6/0/136042622/sisokepetine.pdfIn PDF document text
    • https://kiloxuloje.weebly.com/uploads/1/3/5/3/135398856/dogora-kuvoj-fimenoganavok.pdfIn PDF document text
    • https://bubosetew.weebly.com/uploads/1/3/4/5/134515161/dosijeju.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365541/normal_601d06c8c4909.pdfIn PDF document text
    • https://xanalefude.weebly.com/uploads/1/3/1/4/131411596/4525ed63c395c8.pdfIn PDF document text
    • https://rijojuno.weebly.com/uploads/1/3/5/3/135310883/1210202.pdfIn PDF document text
    • http://voseboler.iblogger.org/dirupupujaxarawa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zemagej.rf.gd/interpreting_solubility_curves_worksheet_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/jitimesolagun/gnu_make_cheat_sheet.pdfIn PDF document text
    • http://lefigop.rf.gd/chappa_chappa_charkha_chale_dj_song.pdfIn PDF document text
    • http://degefoxovovi.epizy.com/kenmore_elite_oasis_washer_user_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/gagagakigibapo/beamng_drive_demo_softonic.pdfIn PDF document text
    • https://s3.amazonaws.com/xukirizugukugi/vcf3_schneider.pdfIn PDF document text
    • https://s3.amazonaws.com/pazatuv/maths_teacher_interview_questions_and_answers.pdfIn PDF document text
    • http://nifopufu.epizy.com/can_t_play_apple_music_offline_android.pdfIn PDF document text
    • https://s3.amazonaws.com/wibedubosateg/beethoven_sonata_9_piano.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_off0000d119.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD119 5308 bytes
SHA-256: 9948e9f5f83336849ed0d1afe2a01d83fd37ef90c013db29ac8767d81e1aaa7d
font_01_sfnt_off0000e2ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2FF 10864 bytes
SHA-256: b4723285f5839a969a8ea4dd37a3663b1ed8ca1c9330921b12b474e040d1373b

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