Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb7b07c56c4b23d7…

MALICIOUS

PDF

81.3 KB Created: 2021-03-15 08:42:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8fe77124b56e64e657c9da02551c37ff SHA-1: bd71db4f307e0be8e0598cb11760915f78e25d17 SHA-256: bb7b07c56c4b23d7639041c9aa9ce230b077f229b5b9f734686476a5036f7108
96 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains an external URI pointing to 'lozipotod.ru/award', suggesting a phishing lure related to design awards. No scripts were extracted, but the PDF structure and external URL indicate a likely attempt to redirect the user to a malicious site for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://lozipotod.ru/award?keyword=bf+design+pdf
    • https://static.s123-cdn-static.com/uploads/4482191/normal_5ffb70c582e9d.pdf
    • https://cdn-cms.f-static.net/uploads/4467277/normal_602530587cbab.pdf
    • https://cdn-cms.f-static.net/uploads/4370266/normal_601a37d49ba3b.pdf
    • http://gomakugagazeg.iblogger.org/attachment_theory_in_practice_sue_johnson.pdf
    • https://nurosamemozixa.weebly.com/uploads/1/3/4/3/134375837/7789398.pdf
    • https://mosutija.weebly.com/uploads/1/3/4/5/134502389/e9e14545fbe92.pdf
    • https://cdn.sqhk.co/sawomunuj/m1na7gc/knife_hit_world_record.pdf
    • https://cdn.sqhk.co/nukusigemug/3hf1Bjg/33218538799.pdf
    • https://vejiledulibona.weebly.com/uploads/1/3/4/3/134318828/fa0d8079d.pdf
    • https://cdn.sqhk.co/volumusigu/DgjpIjj/piano_tap_tiles_magic_2020_mod_apk.pdf
    • https://livuwijonirib.weebly.com/uploads/1/3/4/7/134732661/4080919.pdf
    • http://sait-ok.ru/toro_lawn_mower_carburetor_diagramrho54.pdf
    • http://idealsit.fun/descargar_frida_espaoluwx8e.pdf
    • http://yazansoft.com/792492684934j9n4.pdf
    • http://kukezezexez.iblogger.org/marketing_strategy_definition_and_example.pdf
    • http://titanof-filtr.ru/zatezozabkmz6.pdf
    • https://static.s123-cdn-static.com/uploads/4422382/normal_5fe5d4c70f6ea.pdf
    • https://cdn-cms.f-static.net/uploads/4377912/normal_603c5471cc54e.pdf
    • https://cdn.sqhk.co/zovaratigu/YHJRiak/spicy_chicken_gorgonzola_soup.pdf
    • http://hamlikjorettoop.ru/tva_collecte_et_dductible5o3tk.pdf
    • https://cdn.sqhk.co/riketumes/oSDgfIg/kelime_incileri_oyunu_indir.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://dapizifotokom.epizy.com/divina_commedia_canto_33_inferno_testo.pdf
    • http://wajoran.rf.gd/alliancerx_walgreens_prime_intake_form.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f519.bin
f9065ec901965806d3ab5840fd7081783066e95703bc2cbf3d2a0ed042828a71		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF519 4516 bytes
font_01_sfnt_off0001047f.bin
081d47476a29b2f0e9d6d9cb7b859041eb40790155f380cc6f47897ce381855d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1047F 11148 bytes
font_02_sfnt_off00012a29.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12A29 4324 bytes

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