Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fb1b2b428ada285…

MALICIOUS

PDF

94.8 KB Created: 2021-03-09 05:44:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 813aa809009121e707468057b8076208 SHA-1: 7969af85a8b8a21e35fd2e507e1c8faaa80f7807 SHA-256: 7fb1b2b428ada2858345dd1e379cada9af8a2d1ee33053b1206f694f8bd8607c
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that directs users to a website disguised as a CV template, likely for phishing purposes. ClamAV detection and ML classification strongly indicate maliciousness. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://botokaw.ru/123?utm_term=2+column+cv+template+word
    • https://cdn-cms.f-static.net/uploads/4385424/normal_601de3c41bcd1.pdf
    • https://cdn.sqhk.co/dukasavubu/ie7biiC/9_gigaparsec_to_light_years.pdf
    • https://static.s123-cdn-static.com/uploads/4499972/normal_5ff316d771652.pdf
    • https://cdn-cms.f-static.net/uploads/4426830/normal_6032f6d8ab87f.pdf
    • http://prazdnikprosto.ru/alan_watts_the_way_of_zengpcsm.pdf
    • https://cdn-cms.f-static.net/uploads/4475866/normal_600bc90d2fbae.pdf
    • https://cdn.sqhk.co/sunalikefazo/jgihehc/gambar_monkey_d_luffy_gear_5.pdf
    • http://bumaga.bz/auto_loan_amortization_excel_spreadsheetly1qk.pdf
    • http://stroiline74.ru/37661173801qifil.pdf
    • https://cdn-cms.f-static.net/uploads/4414339/normal_6014dd99b0e5e.pdf
    • http://leadtop.co/83384388319u6wmw.pdf
    • http://dobogoj.iblogger.org/potezixinofudijavepe.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://duxejuxaxeze.epizy.com/emulator_online_android.pdf
    • https://uploads.strikinglycdn.com/files/8ba8a4c9-7f8a-4fd2-ba4e-3dc59ba556a6/2gig_gc2_master_code.pdf
    • http://powipuwefitori.rf.gd/unisa_online_application_form_2020_download.pdf
    • http://pewulalabes.epizy.com/fikujexawokaxexotedob.pdf
    • https://s3.amazonaws.com/wemupajese/nigerian_military_ranks_and_symbols.pdf
    • https://s3.amazonaws.com/baposivarabuj/panopefodorotare.pdf
    • http://fasufigosekuwuw.rf.gd/brinkmann_gourmet_electric_smoker_turkey_recipes.pdf
    • https://s3.amazonaws.com/rimepusox/dead_space_3_pc_demo.pdf
    • https://uploads.strikinglycdn.com/files/46c27527-8ebb-41f6-bc35-3fae186a5a75/how_to_play_cyberpunk_2077_demo.pdf
    • https://s3.amazonaws.com/tabobujimo/mototeb.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_off000135b7.bin
8e0bd4f30afc109eaa8a4e68b5588d45e1a8038f41f8921dc6e3b1d2406caf44
pdf-font-stream PDF embedded font (sfnt) at offset 0x135B7 5228 bytes
font_01_sfnt_off0001477e.bin
afce7131f9f496530d614d6d627432b0f20f016112141cd5bd3ce998f1e4b68e
pdf-font-stream PDF embedded font (sfnt) at offset 0x1477E 11104 bytes