Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbd56225d7f10a67…

MALICIOUS

PDF

88.9 KB Created: 2021-04-08 10:43:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 89e3e5999eb89e96d6ea1b56244ba727 SHA-1: e282cb9a375b7a6c6d2e9346e996cd3cb3ef0eaa SHA-256: dbd56225d7f10a67c3f39244e9288fb80a7e9cce7262c710df932c177a77de89
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also flagged this PDF with high confidence. The document body, though heavily obfuscated, appears to contain keywords related to product searches, suggesting a phishing or scam lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://zajinet.ru/strik?utm_term=sloan+flushmate+cartridge+lowes
    • https://cdn.sqhk.co/wodegamido/jjjjija/acca_p4_pocket_notes.pdf
    • https://static.s123-cdn-static.com/uploads/4485589/normal_5ffe8836cdd8a.pdf
    • https://cdn-cms.f-static.net/uploads/4455183/normal_60653aa4008a1.pdf
    • http://elinekici.online/79145601272o5a05.pdf
    • http://movizopolu.medianewsonline.com/3151661786.pdf
    • https://cdn.sqhk.co/manizamo/igz2gdt/pictoword_level_70-_80_answer_key.pdf
    • http://girepodemaz.getenjoyment.net/how_to_analyse_graphs_and_charts.pdf
    • http://datingsexchat.site/zinokifefofazrcqlj.pdf
    • https://cdn.sqhk.co/famagafe/fghwghO/86202519105.pdf
    • http://domsale.xyz/7652333956411zc2.pdf
    • https://cdn.sqhk.co/jadilogivusa/lEjiihq/pokagomefuxupovazil.pdf
    • http://save50.pro/sexapevibomegisevemuz6ocpr.pdf
    • http://godotobekof.scienceontheweb.net/how_to_keep_coleman_roadtrip_grill_clean.pdf
    • https://cdn-cms.f-static.net/uploads/4457590/normal_601386d14be18.pdf
    • https://cdn.sqhk.co/jinubodilev/jgghobn/vosodof.pdf
    • https://static.s123-cdn-static.com/uploads/4403266/normal_5fe2953541260.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zubiluwetij.myartsonline.com/75970967050.pdf
    • https://a8a2d6b8-6248-42a0-90a4-e25e421c2e59.filesusr.com/ugd/f63f29_07122359b7714db3ba105abeb472a8bd.pdf?index=true
    • https://uploads.strikinglycdn.com/files/9a94d9f6-f5bb-4231-81ec-a6e0d7b413fb/can_i_renew_arkansas_drivers_license_online_in_ny.pdf
    • https://8fc1c2d6-49ba-4d63-8b95-0327ef2b1627.filesusr.com/ugd/1849a1_f9f119a19bba4173834910dfd6924de9.pdf?index=true
    • http://gozudil.onlinewebshop.net/corporate_company_profile_design.pdf
    • https://331e17ce-4321-42a7-89aa-067eaa3daeeb.filesusr.com/ugd/6576ad_7bb6bd8a83b34b1ea03dd7594d6ac983.pdf?index=true
    • https://3794eb9c-cc8b-492c-aecc-44533f76aaa6.filesusr.com/ugd/1ee69b_7f1e173f5df6473d9082a11b6a0b1e2a.pdf?index=true
    • https://uploads.strikinglycdn.com/files/bd713adc-f0f5-4f79-828e-9f8125baeb27/what_are_the_al_anon_steps.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000118c5.bin
0e37113de833afca9b622eb00f08153e0cb5e0b494087b47775d8f6543656a3a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x118C5 5628 bytes
font_01_sfnt_off00012bce.bin
c7454aaa0e252935c3bda266416017fce340d20cfe21a01c95dbae10edc40bbb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12BCE 12476 bytes

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