Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c0bdf13687d8e45…

MALICIOUS

PDF

78.4 KB Created: 2021-02-07 11:47:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 1db83343c9c5f00437e13c63f3992494 SHA-1: b7c2cd40aba3d9e6c13f7a1ee380bb9510f14451 SHA-256: 6c0bdf13687d8e45e96b6cd65244bde0a7582d74c7aa51a5ad0ac82914b79895
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded URLs pointing to disposable domains, a common tactic for phishing or distributing further malware. The 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic specifically flags this behavior. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or trojan delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jottigo.ru/123?utm_term=the+butterfly+effect+3+revelations PDF link annotation
    • http://legendarycraft.ru/shuddering_attacks_video06q3z.pdfIn PDF document text
    • http://bottlechainworld.com/1992051948488oug.pdfIn PDF document text
    • http://nextauto02.ru/Feuerwehr_chula_vista9eqb2.pdfIn PDF document text
    • http://shimano-stradic.ru/revue_technique_tractopelle_mf_50u8rci.pdfIn PDF document text
    • http://tomorubi.22web.org/fifafemediwa.pdfIn PDF document text
    • https://budawimimizav.weebly.com/uploads/1/3/0/8/130873912/3d3242b28559ce.pdfIn PDF document text
    • http://fimosabu.iblogger.org/angadi_theru_movie_tamilrockers.pdfIn PDF document text
    • http://naturmilans.fun/user_guide_or_manual8q213.pdfIn PDF document text
    • http://dutov.org/halves_worksheet_grade_14pb36.pdfIn PDF document text
    • https://filavemegu.weebly.com/uploads/1/3/4/8/134883773/ebc493fb61e.pdfIn PDF document text
    • https://lanasasaf.weebly.com/uploads/1/3/0/8/130815311/zakizizosisawi.pdfIn PDF document text
    • https://folutiniku.weebly.com/uploads/1/3/1/8/131871586/709731.pdfIn PDF document text
    • http://vatasefapulik.iblogger.org/hernia_diafragmatica_congenita_2014.pdfIn PDF document text
    • http://allrecipes.pro/green_party_platform_2020_nbz77el.pdfIn PDF document text
    • https://polidixixav.weebly.com/uploads/1/3/4/4/134467230/c524c25352.pdfIn PDF document text
    • http://genusttwsr.fun/192219873165fkel.pdfIn PDF document text
    • http://amorexpo.com/guilherme_de_souza_nucci_codigo_penal_comentado_downloadhd0dl.pdfIn PDF document text
    • https://tulalesin.weebly.com/uploads/1/3/4/8/134876190/9308774.pdfIn PDF document text
    • https://lipulutopokun.weebly.com/uploads/1/3/5/9/135964399/zumexuximana.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://todakule.rf.gd/dragon_quest_heroes_2_class_guide.pdfIn PDF document text
    • http://warurodezum.epizy.com/bella_ciao_video_song.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e8e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8E1 5268 bytes
SHA-256: 75c5c269494262a01fce06630aab83dc53c6386e5014137a914f2bc156589ca0
font_01_sfnt_off0000fad1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAD1 10328 bytes
SHA-256: 3dd80d68adc8075bb416f793c08c091bb0d7818bb32ad698bf558344eed2b274
font_02_sfnt_off00011e1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E1E 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

Open this report in the interactive analyzer, or submit your own file for analysis.