Malicious PDF — malware analysis report

Static analysis result for SHA-256 af25769fe09ed8f5…

MALICIOUS

PDF

87.2 KB Created: 2021-03-27 11:53:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 36aaaacfc46ef158efa9dcfbe9e9b571 SHA-1: 7faa43d91a88948f18f64522fcac9f1d765834a1 SHA-256: af25769fe09ed8f5d9474a42985e3d0fa4de911ceb99007123c40e1c9c1329d5
126 Risk Score

Malware Insights

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

The PDF contains numerous external links, with one specifically pointing to a URL that appears to be part of a phishing or malware distribution campaign. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a high likelihood of malicious intent, as the document is structured as a link farm on disposable hosting. The ML classifier and ClamAV detection further support the malicious verdict, suggesting the PDF is designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9945

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://xezojetit.ru/wix?keyword=call+for+proposals+2020+kenya PDF link annotation
    • http://joblanc.xyz/10501228158fudqf.pdfIn PDF document text
    • http://keepsufi.space/61025145483muv05.pdfIn PDF document text
    • http://xijulefabogi.getenjoyment.net/zobatofilobexubo.pdfIn PDF document text
    • http://gejokakop.mygamesonline.org/dell_latitude_e5400.pdfIn PDF document text
    • http://rovanenafet.getenjoyment.net/autoestima_definicion_segun_autores.pdfIn PDF document text
    • http://zezasarasojid.mywebcommunity.org/pearson_biology_textbook_11th_edition.pdfIn PDF document text
    • http://merishwheelrecords.com/white_rodgers_thermostat_1f80-261_manuals08cz.pdfIn PDF document text
    • http://peteferix.mypressonline.com/jamaica_images_clip_art_flowers.pdfIn PDF document text
    • http://vixinusagodax.scienceontheweb.net/12435988032.pdfIn PDF document text
    • http://jajokojunewi.mypressonline.com/77300459139.pdfIn PDF document text
    • http://magicwoolshop.com/how_to_do_troubleshooting_in_computeri19ou.pdfIn PDF document text
    • http://jexufiw.iblogger.org/armature_reaction_of_dc_machine.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://solugivewatewa.myartsonline.com/42012495562.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6668f770-b297-4e60-9178-229c1b25e7f6/tork_timer_1101b-p.pdfIn PDF document text
    • http://bopewexe.onlinewebshop.net/biuret_test_for_protein_lab_report_discussion.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/59179166-0588-480f-af2e-55d6ce8a60cc/how_much_is_premiere_pro_cc.pdfIn PDF document text
    • http://ropupifalapoges.atwebpages.com/wokobomapaba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e6d8ecf-2871-45f7-a320-ccf7bac400ed/2971944673.pdfIn PDF document text
    • http://luvabokinoleg.onlinewebshop.net/monster_manual_3_3.5.pdfIn PDF document text
    • http://dapizodipe.myartsonline.com/arcmap_10._3_user_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/716af3e5-5ada-4351-8515-db9c8a5fbcff/brother_intellifax_4750e_not_receiving_faxes.pdfIn PDF document text
    • http://jemejuzot.epizy.com/asvab_practice_questions_electronics_information.pdfIn PDF document text
    • http://zumoriko.epizy.com/poc_bible_malayalam_free_download.pdfIn PDF document text
    • http://vedaremix.epizy.com/nintendo_bomberman_game_free_pc.pdfIn PDF document text
    • http://vewawisu.onlinewebshop.net/2031520626.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f28209d2-c192-439e-99e9-d8fd6ca2c284/how_to_change_oil_onan_4000.pdfIn PDF document text
    • http://sasuwirakib.rf.gd/69388562020.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010dfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DFA 1872 bytes
SHA-256: b1b733d6dcd41c651d24b99c9f5200ade4dd71601f7ee8dbd3095764b9703bfb
font_01_sfnt_off000116ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116EF 5240 bytes
SHA-256: 0ed2cd021246f6f9e76091d41e9c1738e32558c4db0f440c9dfbcc57ddc55927
font_02_sfnt_off000128dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x128DC 11268 bytes
SHA-256: 61c4ddf528b1993d4d1a0165c05d632e695ebc7300e9071f23d45f0fbc9728b2