Malicious PDF — malware analysis report

Static analysis result for SHA-256 279369350552c9aa…

MALICIOUS

PDF

65.7 KB Created: 2021-02-05 17:42:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 253dbf8fd4cc09521eaf5bda02a547d8 SHA-1: a35154d493b532f4a8e2feb62e906eb8275f7fc3 SHA-256: 279369350552c9aaf92d922e62cb48425adda6b3b49fa27592538bf184a4be6d
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/aws?utm_term=aurender+w20+user+manual PDF link annotation
    • http://vukogosapejofa.iblogger.org/calcite_and_aragonite_information.pdfIn PDF document text
    • https://gefaturulabi.weebly.com/uploads/1/3/4/4/134487578/c54ab3b7f9.pdfIn PDF document text
    • http://nufurimuler.iblogger.org/noziziwadimugal.pdfIn PDF document text
    • http://jaraxusej.iblogger.org/advanced_cost_accounting_objective_questions_with_answers.pdfIn PDF document text
    • https://sopetenoredu.weebly.com/uploads/1/3/5/3/135318191/lolejuramutele.pdfIn PDF document text
    • http://piguzipudoval.iblogger.org/realtor_magazine_franchise_report.pdfIn PDF document text
    • http://gopefafapojawod.iblogger.org/83530197944.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xukenefurirog.epizy.com/fb_video_extension_firefox.pdfIn PDF document text
    • http://xuvagakinev.rf.gd/chess_titans_windows_10_full.pdfIn PDF document text
    • http://bojedujob.rf.gd/extentia_group_annual_report.pdfIn PDF document text
    • http://fujumel.rf.gd/astral_form_toy_wow.pdfIn PDF document text
    • http://fepoxojosatomu.epizy.com/suduxukajupezi.pdfIn PDF document text
    • http://tufelurokid.epizy.com/buddy_bolden_s_blues_sheet_music.pdfIn PDF document text
    • http://pazixurofuni.epizy.com/69641640902.pdfIn PDF document text
    • http://xevivalekivo.epizy.com/95980937818.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_off0000c60d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC60D 5324 bytes
SHA-256: 0b4ed16728e0780ea6a6f01b4b48394d690cb4bb07f6f0f37d03fd8f9340e08c
font_01_sfnt_off0000d81f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD81F 10012 bytes
SHA-256: 56c63099db88d449cf19a101a1e167514098ed33aa1c3f0f7cb717a456a595f3