Malicious PDF — malware analysis report

Static analysis result for SHA-256 fca9cbc4cdd75b1a…

MALICIOUS

PDF

80.8 KB Created: 2021-03-23 07:11:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 1c6eec81fe03d81ea02f6fa65f63308d SHA-1: 2f9186f2947025cee32691f877754721a2551898 SHA-256: fca9cbc4cdd75b1a7a6f2f5b05532ebafa995e224bfdc1f232893e4e0d15b018
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, and the ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, suggests a lure related to a 'Honda gc 160 repair manual', likely to trick users into clicking the malicious link. No scripts were extracted, but the presence of external URIs and the high confidence detection scores suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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://golowaki.ru/strik?utm_term=honda+gc+160+repair+manual PDF link annotation
    • http://peuer.xyz/irony_in_satire_harrison_bergeron_answersuiif4.pdfIn PDF document text
    • https://cdn.sqhk.co/rapovixovuti/vYDEhgc/master_word_meaning_bangla_sick.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427506/normal_5fcfeb34edd4a.pdfIn PDF document text
    • http://suziterunedoloj.sportsontheweb.net/83636087545.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417526/normal_5fe8483058ffe.pdfIn PDF document text
    • https://cdn.sqhk.co/jenireni/wLWhcol/judeg.pdfIn PDF document text
    • https://cdn.sqhk.co/lusajiki/RijiLgc/political_machine_2020_ideology_trees.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408871/normal_5ff1e87e04e75.pdfIn PDF document text
    • http://zanartcc.net/kekewuwobuluvupomogosibeuulb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445888/normal_5fff050f36e6c.pdfIn PDF document text
    • http://xplaintome.ru/zarawokebedadufedue9j59.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459796/normal_5fcbf24fba1bd.pdfIn PDF document text
    • https://cdn.sqhk.co/zejizoguzut/aFifrih/online_electronic_circuit_simulator.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kefefetafij/7440008393.pdfIn PDF document text
    • https://s3.amazonaws.com/wizuluworafid/loromejiwusavasugij.pdfIn PDF document text
    • https://s3.amazonaws.com/mujevubutukoxu/67390700784.pdfIn PDF document text
    • https://s3.amazonaws.com/gedesisumi/dulinuminez.pdfIn PDF document text
    • http://gixiluvigatekij.atwebpages.com/sensory_details_example_paragraph.pdfIn PDF document text
    • http://perexuwofogefo.onlinewebshop.net/jajesosusame.pdfIn PDF document text
    • https://s3.amazonaws.com/jawusawar/dikuzewagutegatilufolo.pdfIn PDF document text
    • http://vimixof.onlinewebshop.net/who_is_the_god_of_protection.pdfIn PDF document text
    • https://s3.amazonaws.com/nilititonawafim/dickies_women_s_pants_size_guide.pdfIn PDF document text
    • http://xedemigu.atwebpages.com/zoberabanenuxa.pdfIn PDF document text
    • https://s3.amazonaws.com/jafujasiwetid/student_solutions_manual_for_stewarts_essential_calculus_early_transcendentals_2nd.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_off0000f2d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2D5 1576 bytes
SHA-256: 833ee828da760589432eb6c8efccf1dc844aa9a3cc913bc9ee77ac33e196e2b7
font_01_sfnt_off0000fad5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAD5 5524 bytes
SHA-256: 12c0c04c606308a82c0d9113daecdefb6455f4eb3e6300e6983624e0e9866b07
font_02_sfnt_off00010d85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D85 11032 bytes
SHA-256: 69ba0cddd83f9026e44d56f8944816a1d944e70d6198ffc4e67a6cbf420fe83d

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