Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9032c424824850a…

MALICIOUS

PDF

74.5 KB Created: 2021-03-10 00:16:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 7a317ff903b41b032d0219012b47358f SHA-1: 19fb6568ac3d29b3b884e70be76945505c9a22ea SHA-256: f9032c424824850a5505a8f5d1bde1c6aa04de3338096c8a534843d3cdf9269d
186 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many pointing to disposable domains, suggesting a link farm or SEO spam operation. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or distributing further malware. The embedded URLs are the primary indicators of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://seumenha.ru/strik?utm_term=interview+questions+and+answers+for+english+teachers+pdf PDF link annotation
    • https://cdn.sqhk.co/wireriduwude/YUPK4dj/epic_games_launcher_para_linux.pdfIn PDF document text
    • https://cdn.sqhk.co/fuvebopeweb/EEUCzij/79197610244.pdfIn PDF document text
    • http://wozekozexufoxol.scienceontheweb.net/what_did_the_3rd_estate_want_in_the_french_revolution.pdfIn PDF document text
    • http://bijipejip.iblogger.org/wifi_usb_adapter_for_pc_driver.pdfIn PDF document text
    • http://fuvisetitisenon.mypressonline.com/bosch_500_series_dishwasher_issues.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/66e2aeb5-e48e-417c-ae09-aeef1ae680a2/what_is_semantic_memory_quizlet_psychology.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74b4124a-6dbe-4596-8898-f464a264ebb5/30260502991.pdfIn PDF document text
    • http://nesuvumuvugelo.epizy.com/6760150157.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7297e281-07f6-4a57-b87d-a4fb60e240ab/fishman_loudbox_performer_vs_boss_acoustic_singer_pro.pdfIn PDF document text
    • http://kigitom.epizy.com/29231234031.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66cd93fe-8105-48e0-b2b0-9e54e16b37c7/what_pokemon_does_red_have_in_lets_go.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ebd906e-bb0c-44cf-b0db-c535e57f0f26/america_a_narrative_history_10th_edition_volume_1_free.pdfIn PDF document text
    • http://nosigegu.onlinewebshop.net/which_action_is_a_self-destructive_behavior.pdfIn PDF document text
    • https://8dfd47f4-e591-4377-92a3-bdbf91d41e5a.filesusr.com/ugd/a58b01_42378bab6d2546d99a573c72674026c5.pdf?index=trueIn PDF document text
    • http://kilarosine.atwebpages.com/what_is_the_best_battery_drill_on_the_market.pdfIn PDF document text
    • https://f499a9ea-5579-4d3c-a180-ba191067f9b7.filesusr.com/ugd/34ec99_4983fe8ebd3441f38799a26d8e68f706.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/277d8a2f-2c96-4c0e-845a-53c5083dd196/13607028178.pdfIn PDF document text
    • http://sumoguvovubipil.epizy.com/encountered_an_improper_argument_informatica.pdfIn PDF document text
    • https://0a497e50-07dd-462d-832d-d8678f741a8e.filesusr.com/ugd/5f857b_8f3e05ffe85146b4b4053f80bc5a4260.pdf?index=trueIn PDF document text
    • https://92fa68c6-d088-48c5-94d9-776fe0504fc0.filesusr.com/ugd/5a053b_5a67ce98bd684dc4ba42ce40579e4927.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/02843580-6d4d-4a44-818f-060845a8a920/vimorokonazod.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_off0000e5d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5D6 5632 bytes
SHA-256: 4abe933eeae91a5afac0c410c8e39c229f08a587d94832fb852fac13b1232be8
font_01_sfnt_off0000f90d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF90D 10352 bytes
SHA-256: 1d7eba787dcabfd3fdee3cb97256821b4857355dbb96240f65788297ed0188e7