Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e34bac409eeaf61…

MALICIOUS

PDF

77.5 KB Created: 2021-04-04 07:43:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 278d2c4b01cd355e5c2c682786a25ff8 SHA-1: 7bcd595e6cc3ba4b975668fe8c0e0f74b8256102 SHA-256: 8e34bac409eeaf618b93d12eed7c511c40e822eab152cdf0c4fd351c7d60673b
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, which is a strong indicator of malicious intent. The ML classifier and ClamAV detection further confirm its malicious nature. The document body, though heavily garbled, contains keywords related to technical issues ('Canon mp250 scanner not working'), suggesting a lure to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://gimoguvi.ru/strik?utm_term=canon+mp250+scanner+not+working
    • http://takipibimaxubov.sportsontheweb.net/pufisifasujemoxufituloj.pdf
    • http://bosabamat.22web.org/xoziwodebaxilagijebijuxu.pdf
    • https://cdn-cms.f-static.net/uploads/4451352/normal_605c89552a162.pdf
    • https://cdn.sqhk.co/dagozuwemep/iiiUAtc/car_robot_transformation_19_robot_horse_game.pdf
    • http://tupaxeguna.scienceontheweb.net/66489143381.pdf
    • http://sawedes.mywebcommunity.org/jexadewironuzakizudopov.pdf
    • https://cdn.sqhk.co/tokarikadez/fGvjihi/dajisebitekovibapem.pdf
    • https://cdn-cms.f-static.net/uploads/4486036/normal_600a4beb87b17.pdf
    • https://cdn-cms.f-static.net/uploads/4447662/normal_602d846c64eaf.pdf
    • https://static.s123-cdn-static.com/uploads/4469119/normal_60019dbbd7140.pdf
    • http://fevofawemuwa.medianewsonline.com/93548433024.pdf
    • https://cdn.sqhk.co/vumivatuvi/dDihige/sumesipipenugolewuxaxa.pdf
    • https://cdn.sqhk.co/melipetoluf/eSvxjcH/lowe_s_hours_today_july_4th.pdf
    • http://viwimewi.22web.org/lagu_idealism_both_of_us.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/vonusirukete/gpu_architecture_book.pdf
    • https://s3.amazonaws.com/pegozegi/how_to_calculate_tenure_in_years_and_months_in_excel.pdf
    • https://s3.amazonaws.com/xuzakob/58668608490.pdf
    • http://rofanuw.rf.gd/examen_diagnostico_historia_universal_segundo_secundaria.pdf
    • http://jalijoruki.atwebpages.com/jufobimonujurela.pdf
    • http://xibiwoziveva.epizy.com/21330018572.pdf
    • https://s3.amazonaws.com/jefazaxal/mainstays_slim_digital_scale_instruction_manual.pdf
    • http://fiforeru.atwebpages.com/will_there_be_a_twilight_6_2020.pdf
    • http://pizuzol.onlinewebshop.net/how_many_calories_in_a_bagel_bite.pdf
    • https://s3.amazonaws.com/wetowuzuxit/adobe_flash_professional_bagas31.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_off0000f1e5.bin
d95182fc7a00b263fe47f0a78afb847a49b4277377436449766d32bdc3a05d33		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF1E5 5680 bytes
font_01_sfnt_off00010540.bin
37fda8a2dd7908f888a3ab16c64e6e22ef78431de38deaf8c4d4b1036e3c6fe9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10540 10360 bytes

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