Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fa13d16c067fb09…

MALICIOUS

PDF

73.9 KB Created: 2021-03-11 18:11:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 7b61690a0e5f03ad4d9db24a770da615 SHA-1: 6aed8cb1ef680eafefed964d6de43dd4f6c4bf5c SHA-256: 6fa13d16c067fb09bab7080a4660ca82ba6d920e790293c3f3b55abf7efaa74a
126 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document contains embedded URLs that lead to external sites, one of which is directly related to downloading an 'apk' file, suggesting a lure for potentially unwanted or malicious applications. The presence of multiple distinct hosts and a high number of links within the PDF further supports its classification as a link farm designed for malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • 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 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://botokaw.ru/wix?keyword=boxing+apk+free+download PDF link annotation
    • http://tibagisuminove.sportsontheweb.net/rudepifikidipo.pdfIn PDF document text
    • http://mitutepoka.medianewsonline.com/2005_honda_civic_transmission_replacement_cost.pdfIn PDF document text
    • http://momarivido.mypressonline.com/padasugejawof.pdfIn PDF document text
    • http://veselutut.mywebcommunity.org/mmoire_assurance_automobile_gratuit.pdfIn PDF document text
    • http://xemokajoled.medianewsonline.com/fekaleren.pdfIn PDF document text
    • http://vugijow.iblogger.org/lightroom_shortcuts_pc.pdfIn PDF document text
    • http://manuximaxemeje.scienceontheweb.net/baby_bjorn_carrier_instructions_front_facing.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://770ad53b-b55e-4e58-b1eb-3709f41304f7.filesusr.com/ugd/98e298_a73dadbd28804b86bd063796383b2d6b.pdf?index=trueIn PDF document text
    • http://duxepivol.myartsonline.com/how_to_connect_swann_security_camera_to_tv.pdfIn PDF document text
    • https://s3.amazonaws.com/lomiwexuva/72176507662.pdfIn PDF document text
    • http://nepopenezum.rf.gd/cdc_flu_vaccine_consent_form_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/wizedumi/wallpaper_engine_workshop_without_steam.pdfIn PDF document text
    • https://72a23b54-95c1-47c0-80d6-f7b1310faeb8.filesusr.com/ugd/65b209_43255eacc58a4947a689124da966995e.pdf?index=trueIn PDF document text
    • http://fikuputo.epizy.com/35147280617.pdfIn PDF document text
    • https://ac685e6e-6442-44c0-91a1-b3a367e79ef2.filesusr.com/ugd/ce77c6_36404450068042d3bcd143700c73f799.pdf?index=trueIn PDF document text
    • https://41d9b059-0b17-466b-96e6-f31a3f3e9b19.filesusr.com/ugd/f1ead9_d8db6347601445fbacb53658374f9f3d.pdf?index=trueIn PDF document text
    • https://f64a1a0a-debf-4843-a838-a34c0cae0f4a.filesusr.com/ugd/89602e_f535f991026b4e10a3927a6d8ba9da69.pdf?index=trueIn PDF document text
    • http://kavunuses.epizy.com/apk_picsay_pro_id_uptodown.pdfIn PDF document text
    • http://bekusisit.atwebpages.com/convert_to_word_di_android.pdfIn PDF document text
    • https://46b09160-81f9-4cb3-9cca-f7b5b0c0229e.filesusr.com/ugd/179cc6_8f5ec0334cb343a68604a57136ccb7c4.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wizitifowubux/is_getting_a_w_on_your_transcript_bad.pdfIn PDF document text
    • http://baxewape.myartsonline.com/resistance_band_exercises_for_thigh_gap.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_off0000e554.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE554 5304 bytes
SHA-256: f38d2e17051bf5198a01eb0b2b8c9c3e430dfda5bcabc8260832c01f516a5058
font_01_sfnt_off0000f793.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF793 10368 bytes
SHA-256: da9bb14a26fb05383a6225cc5950e0a48eb1712fe6ad732818ae85160da6a0a5

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