Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f2080d1ca3455f7…

MALICIOUS

PDF

72.7 KB Created: 2021-04-03 00:49:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: a98f67a61064dfa736a15c41599fb316 SHA-1: 5eff6defcbdbf601dbf186370dff0d3be63d21d5 SHA-256: 2f2080d1ca3455f7059b42bc326d5b556a7ec32f2ba74d3a8a8d5b35d4057867
124 Risk Score

Malware Insights

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

The PDF contains embedded URLs and heuristics indicate it functions as a link farm, directing users to potentially malicious sites. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a common phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6897

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
  • 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
  • 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://leonvi.ru/strik?utm_term=simplehuman+tension+pole+shower+caddy+instructions PDF link annotation
    • http://wajazenizur.mywebcommunity.org/2012_honda_pilot_owners_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/wekaradukuve/VW4kQgc/at_t_mobile_security_plus_for_unlimited_plans.pdfIn PDF document text
    • http://zakosemej.mypressonline.com/similes_and_metaphors_worksheets.pdfIn PDF document text
    • https://cdn.sqhk.co/genopeno/ctmZjfP/skater_skirt_outfits_for_night_out.pdfIn PDF document text
    • https://cdn.sqhk.co/dewufidabo/Mhhfiit/meaning_of_amazed_in_urdu_and_english.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483104/normal_600ba0ea9e96b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419001/normal_5fe02be1c5083.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486201/normal_604fb03321cab.pdfIn PDF document text
    • https://cdn.sqhk.co/wetaxawirewu/OigQN4T/direct_line_additional_driver.pdfIn PDF document text
    • http://fafijitesulexiz.mygamesonline.org/finanzas_bursatiles_libros.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446492/normal_5fdba62edb758.pdfIn PDF document text
    • https://cdn.sqhk.co/radofufalam/ubiahhg/elemental_dungeon_mod_apk_money.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420745/normal_6025010c717b9.pdfIn PDF document text
    • https://cdn.sqhk.co/kupawusel/3jhqQwt/50865854610.pdfIn PDF document text
    • https://cdn.sqhk.co/xoradofexul/hifzgfs/chemical_element_symbol_table.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zuputes.atwebpages.com/22694331273.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/afb32414-64cf-4a9f-af3c-594db1fe2a56/mcgraw_hill_connect_student_registration.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc473f6f-e03d-464e-b424-63500b7a6643/can_you_mix_cement_in_cold_weather.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a2c8e1f2-8fa0-4041-ac2e-3284d777b4b4/baxobediwodoripo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f13e28e4-c3ba-40e5-926b-c2a48d14a4c6/who_guidelines_for_baby_food.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/686ac662-f6cb-4a0e-9fc9-959c3027f38b/kutixegitovegej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cacc79fa-63b9-4944-b52b-6613a9e255d2/80447968692.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1210719-93c5-4ad8-b2a9-efe4ceca5901/1930_um_marco_na_histria_do_brasil_resumo_brainly.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fbcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBCD 5608 bytes
SHA-256: 63907e55fca9cf7102f8a033183e52f54d0db63fda3dd1d0cd77c10592eade07

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