Malicious PDF — malware analysis report

Static analysis result for SHA-256 abe1e08e6240c270…

MALICIOUS

PDF

108.9 KB Created: 2021-04-02 21:20:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 16263c51a3d2283cc5a4688cb737a8ee SHA-1: dcab49aad1d4847d6c08501fe51961bde187235d SHA-256: abe1e08e6240c27038a7b6dc160a15899842054be92eea0aef389d1bece538d9
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan payload. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool often used to create fake documents for phishing lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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/strik?utm_term=bradley+smoker+pucks+menards
    • https://firulozide.weebly.com/uploads/1/3/0/7/130775295/filigal.pdf
    • http://mukinumatonewo.getenjoyment.net/43085487875.pdf
    • http://lumogodasekepi.mypressonline.com/respuestas_del_libro_de_historia_5_grado_pagina_12.pdf
    • https://cdn.sqhk.co/dorejewibiz/jcOijx7/online_like_video_player_enter_url.pdf
    • http://pidagenavuziw.mywebcommunity.org/motimekirax.pdf
    • http://silkhfig.bid/52966819549wgzba.pdf
    • https://cdn.sqhk.co/semejegofip/dshiidG/silibosaf.pdf
    • https://cdn.sqhk.co/fuwinoxaxava/id7Uhe8/medicine_journal_club_template.pdf
    • https://laxepesijuniz.weebly.com/uploads/1/3/1/3/131383562/3620651.pdf
    • https://kikosezuzo.weebly.com/uploads/1/3/1/3/131378972/tepirek-lofuruwifebifid-mizarali-zivemerasobe.pdf
    • https://xevefozivoro.weebly.com/uploads/1/3/5/3/135339272/bufubiwamutevaw_tabezuwas_ritolezu_mavusomodu.pdf
    • https://gapudozesaneg.weebly.com/uploads/1/3/4/5/134525911/8188162.pdf
    • http://tokesuditetu.getenjoyment.net/juxisipefezujetidapixilap.pdf
    • http://matizaw.mywebcommunity.org/porter_cable_air_compressor_parts_c2002_type_9.pdf
    • http://napodosawukezob.getenjoyment.net/resibixazivediberoluk.pdf
    • http://organize.shop/67313051560b4an6.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/eedb4f55-f4e9-4d3d-af37-c962da6407d3/large_world_map_with_latitude_and_longitude_lines.pdf
    • https://uploads.strikinglycdn.com/files/61dc8fa8-7d2b-45be-b52f-5de1e6be227a/how_to_write_a_warning_order_for_the_army.pdf
    • https://uploads.strikinglycdn.com/files/07d68c39-3b3a-4216-a47f-0f71daae6b04/honeywell_rth230b_manual_mode.pdf
    • https://uploads.strikinglycdn.com/files/7b41ca53-cc78-4ebd-9206-6cd074c1d295/fupixexosunexuv.pdf
    • http://supuwevul.atwebpages.com/what_did_joker_say_to_murray_before_he_shot_him.pdf
    • http://nejesezape.myartsonline.com/does_sat_give_you_math_formulas.pdf
    • https://uploads.strikinglycdn.com/files/2f3da728-0f45-466a-81fc-b397ec67b2a6/31424475236.pdf
    • http://wudazebej.atwebpages.com/taxodidovuwiwoludofes.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_off00016d56.bin
86f4db91ed81af3bc9253b13eb0986b7961bcba5d688f9fff8f903530b33aa74		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16D56 5436 bytes
font_01_sfnt_off00017fc4.bin
688e52fdc17a72102c7770417704b655053e08ac9510bded45adcdc33d6257b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17FC4 11392 bytes

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