Malicious PDF — malware analysis report

Static analysis result for SHA-256 62cd5ed345cd18f3…

MALICIOUS

PDF

76.2 KB Created: 2021-04-24 17:33:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 4dae2864e09bfad8d519e5aa57dcc335 SHA-1: cffceacaf51c9c8e570caa01dc410ec42a6b52d5 SHA-256: 62cd5ed345cd18f3bad21f7cfb4e9b6d029a59adbf79c0ee96b6ca8d93eef795
126 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous external URIs, with a prominent one pointing to 'lozipotod.ru', suggesting a redirection to a malicious site. The document body, though heavily obfuscated, appears to be a lure related to 'sodastream', likely to trick users into clicking the embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/strik?utm_term=is+sodastream+a+healthy+alternative PDF link annotation
    • https://cdn.sqhk.co/pamavunawi/0jaMge0/ligiloman.pdfIn PDF document text
    • https://cdn.sqhk.co/xobitabab/jghMife/playstation_4_controller_walmart.pdfIn PDF document text
    • http://alexsaf.ru/how_to_deep_clean_a_tub_with_jetsr7l16.pdfIn PDF document text
    • http://1gusevshop.space/bupeserud89su.pdfIn PDF document text
    • https://cdn.sqhk.co/kovezozeseg/iq6UjgE/shelter_island_ny_ferry_schedule.pdfIn PDF document text
    • http://helpverifybadges.com/66845485581fgl9t.pdfIn PDF document text
    • https://cdn.sqhk.co/lilomovetum/R9uhbja/98587455883.pdfIn PDF document text
    • http://matteset-spon.space/aaa_travel_agentfwt45.pdfIn PDF document text
    • http://afracheat7.xyz/78985520552sqfnz.pdfIn PDF document text
    • https://cdn.sqhk.co/xamowizaso/bhghchd/zukisanajevopanis.pdfIn PDF document text
    • http://mybestchan.online/75031564208ghm1p.pdfIn PDF document text
    • http://znohist.site/excel_formula_does_not_working_in_tabledr8wy.pdfIn PDF document text
    • http://ourfutures.space/gitasesilujojagivegokojotdai.pdfIn PDF document text
    • http://hookup682.site/lekobudopoxunarem0ukly.pdfIn PDF document text
    • http://mmamba.ru/kusibexotorujafatuwawuto37u.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ab07c48-2610-4b40-a45a-20b28f4d15b6/rodasewudovugexukejokoda.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2fd2ece-f74c-47c2-9029-0377a1910f99/how_to_open_wd_my_passport_wireless_pro.pdfIn PDF document text
    • https://s3.amazonaws.com/tutapaxi/50569889035.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d197c93-223c-4e8a-a1a6-3c8a6ed255d6/woodworking_for_dummies_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/zuvovoxigumuz/famepati.pdfIn PDF document text
    • https://s3.amazonaws.com/ravuxudibure/probability_and_stochastic_processes_quiz_solutions.pdfIn PDF document text
    • https://s3.amazonaws.com/wuxupewu/company_of_heroes_2_multiplayer_gameplay.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ebaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBAF 5164 bytes
SHA-256: c3d8df44982ee4774593da64b89ba0b8e5be0df48493cf111fd6624b2dcd2908
font_01_sfnt_off0000fd1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD1C 11036 bytes
SHA-256: 1cec2eac067b097a37095256d8728be35a8600c983f3e63c4508d683cee4c7e5

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