Malicious PDF — malware analysis report

Static analysis result for SHA-256 f49b8480997e5478…

MALICIOUS

PDF

79.7 KB Created: 2021-03-06 10:18:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: f2376e0a2fee02fa1a521423093abccc SHA-1: d5342b55fac3e2d071fd1b901626d1e77c89c457 SHA-256: f49b8480997e5478d1066eba1bcfc124e2f8f9f228c96e540c08044a9fe3d480
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that points to a domain associated with phishing and malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the heuristics suggest this document is designed to redirect users to malicious sites, likely as part of a phishing campaign or to download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://nipisod.ru/award?keyword=how+to+setup+a+netgear+ex3700+wifi+extender PDF link annotation
    • http://kiwenalod.medianewsonline.com/93392176253.pdfIn PDF document text
    • https://cdn.sqhk.co/bilanogakiw/ggAgeZd/18767739297.pdfIn PDF document text
    • http://sevezor.scienceontheweb.net/how_does_yeast_infection_affect_a_woman.pdfIn PDF document text
    • http://wikowezenitezo.medianewsonline.com/51890385728.pdfIn PDF document text
    • http://medebupima.sportsontheweb.net/los_5_lenguajes_del_amor_test_para_esposas.pdfIn PDF document text
    • https://cdn.sqhk.co/zimidenex/hhxn51T/telefonica_movistar_mexico_telefonos.pdfIn PDF document text
    • https://cdn.sqhk.co/livaxipovage/WhdDjeJ/89197815668.pdfIn PDF document text
    • https://cdn.sqhk.co/wojusipi/i4qjhjf/audio_joiner_software_offline.pdfIn PDF document text
    • https://cdn.sqhk.co/xivovido/ihgRfjj/fexilamutazupimi.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
    • https://s3.amazonaws.com/kawotexulozax/gutuzusinuramodezejof.pdfIn PDF document text
    • https://s3.amazonaws.com/tubupejevomo/46886088605.pdfIn PDF document text
    • https://s3.amazonaws.com/kukupunopedon/beetv_apk_mod.pdfIn PDF document text
    • https://s3.amazonaws.com/falufusu/aluminized_steel_sheet_metal.pdfIn PDF document text
    • https://s3.amazonaws.com/fejakixoweka/de_forma_altruista_que_significa.pdfIn PDF document text
    • https://s3.amazonaws.com/fazujo/luwupebekis.pdfIn PDF document text
    • http://nuzikenevizut.onlinewebshop.net/74498872141.pdfIn PDF document text
    • https://s3.amazonaws.com/mokuwanibof/cowon_plenue_d3_specs.pdfIn PDF document text
    • https://s3.amazonaws.com/xixonu/xesugitijiv.pdfIn PDF document text
    • http://zonatitusajobo.onlinewebshop.net/73716383454.pdfIn PDF document text
    • https://s3.amazonaws.com/mexijegedakol/blinkist_cracked_apk.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_off0000ec9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC9E 5564 bytes
SHA-256: 6628b9f1b01a59a25b33f0f846956246998eaa043ff8c1ba2affbe908ff718ae
font_01_sfnt_off0000ffb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFB2 10288 bytes
SHA-256: 3a8585007e464ff68487f27bd67a0d2851ab2d57755767aaaf9cfad9821ae9bf
font_02_sfnt_off0001231c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1231C 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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