Malicious PDF — malware analysis report

Static analysis result for SHA-256 36b753bba79b27f7…

MALICIOUS

PDF

68.8 KB Created: 2021-01-28 01:15:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 9ba57ba2976ebb5c699fba999a68a91d SHA-1: 5a6f8810fc30e639afbc3d7f6219dbb7a968ead0 SHA-256: 36b753bba79b27f77851508ccf33dda4a3fb25c324a8347d61fad73b0c8d3afc
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://bologen.ru/aws?utm_term=avast+anti+theft+app PDF link annotation
    • https://cdn.sqhk.co/lilapanorup/c3jbiin/soxovodunizi.pdfIn PDF document text
    • http://tipaxoj.66ghz.com/noruxububogaripodugu.pdfIn PDF document text
    • https://cdn.sqhk.co/jabezoxujo/hpjj3VB/1417698234.pdfIn PDF document text
    • http://myluckywin.site/project_manager_salary_entry_levelzui6e.pdfIn PDF document text
    • http://wersita.fun/piano_lessons_near_me_freexm2o7.pdfIn PDF document text
    • https://cdn.sqhk.co/jibenapola/hihfhb0/how_to_win_friends_and_influence_people_audiobook.pdfIn PDF document text
    • https://cdn.sqhk.co/vibisidumes/fjdv5ig/hepatitis_b_symptoms_in_men.pdfIn PDF document text
    • http://aycotoro5.xyz/radio_97._7_online_mexicoj24f0.pdfIn PDF document text
    • https://cdn.sqhk.co/xipepovivik/ghihFjc/55614429521.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lazumibuwa.rf.gd/momentum_and_impulse_problems_with_answers.pdfIn PDF document text
    • http://ripazek.epizy.com/intellij_idea_shortcuts_cheat_sheet.pdfIn PDF document text
    • http://gobonelore.epizy.com/baldi_s_basics_android_gameplay.pdfIn PDF document text
    • http://riwugiboturom.epizy.com/pulmonary_hypertension_guidelines_2017_ppt.pdfIn PDF document text
    • http://gegokuberil.rf.gd/sonivag.pdfIn PDF document text
    • http://lugimes.epizy.com/temple_of_literature_guide.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_off0000ca37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA37 4912 bytes
SHA-256: 406b3be0336507abcc697a31101a6c26accae5a85107541b266cb5066e6d39cf
font_01_sfnt_off0000dafb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAFB 13336 bytes
SHA-256: a75b59953a065cb6eb42fa229b7819bec89f06931878b6a366c7ba6ef81e99e3