Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1e0201b9977a4ef…

MALICIOUS

PDF

119.2 KB Created: 2021-03-29 15:17:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: da0a58e4b0176cc8cc3917b7791bccdc SHA-1: a714bfd037d9017b67f6d5d31c7c2fc59f3a7c38 SHA-256: d1e0201b9977a4ef54f5eac7b3993c040061baef0758698e40ca29aaf2662071
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable domains, suggesting a link farm or phishing lure. ClamAV detection and ML classification strongly indicate malicious intent. The presence of external URIs and a link farm heuristic points towards the document's primary function being to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://vilenefex.ru/award?keyword=atorvastatin+davis+pdf PDF link annotation
    • http://guwadoraji.22web.org/what_is_a_planning_process_model.pdfIn PDF document text
    • http://blancop.xyz/piruwuw6edq9.pdfIn PDF document text
    • http://norusezuluwo.iblogger.org/writing_inequalities_worksheet_6th_grade.pdfIn PDF document text
    • http://kabejorudedofom.22web.org/musogat.pdfIn PDF document text
    • http://zuvilivupeke.iblogger.org/mimugoxulisuro.pdfIn PDF document text
    • http://omerkatanalp.com/what_is_the_best_app_for_quranay2fq.pdfIn PDF document text
    • https://cdn.sqhk.co/wetaxawirewu/F8HgeAe/video_call_lighting_amazon.pdfIn PDF document text
    • http://gugozefo.22web.org/pigoseregiwesulelutaguru.pdfIn PDF document text
    • https://cdn.sqhk.co/waxixojapu/FhihdPJ/filehippo_reader_32_bit.pdfIn PDF document text
    • http://sowufevoga.iblogger.org/93324398257.pdfIn PDF document text
    • http://zevupixikug.mywebcommunity.org/how_do_i_fix_my_verizon_red_globe_router.pdfIn PDF document text
    • http://dipazekonowa.mypressonline.com/how_to_fight_a_judgement_against_me_in_texas.pdfIn PDF document text
    • https://cdn.sqhk.co/zamokaxu/ibtjagc/54226886660.pdfIn PDF document text
    • http://gamedv.design/787798618365tlsy.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/b7bda920-a6e7-4cf3-919c-a2e66f8acf78/zigaderukonavaso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b7f71dc-b946-4b6f-827f-57474b1030e3/16931379627.pdfIn PDF document text
    • http://nowimirozox.atwebpages.com/88575060094.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/963ddb69-573c-4d63-88c0-099d239ef932/which_thrawn_trilogy_is_better.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/485203b2-4a5a-41a3-b2fd-4f0dfb88df6d/battletech_game_mech_spreadsheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/defd16c7-c824-406a-984e-e5a1ca1ae33c/zaxukasisofinerawa.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00017b77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17B77 5052 bytes
SHA-256: 08da992dfb854ae36717d360cd849cea1cd33126b1f843a59b88c9fb7f13d23d
font_01_sfnt_off00018cbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18CBD 12836 bytes
SHA-256: e353acafa7beb30d03366d941194a4a86069d91f023d277db5784bb95383b6d0
font_02_sfnt_off0001b863.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B863 16160 bytes
SHA-256: f80b9f84d6ea16074f67da7a904ab41e14e5a44612b81a97f195d72f9bd2a496

Open this report in the interactive analyzer, or submit your own file for analysis.