Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6e354f3fa7d325c…

MALICIOUS

PDF

85.6 KB Created: 2021-03-15 19:57:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 17aadcd54994342130ef9b2c725ea557 SHA-1: 70e21e75bf55988cb1ccf3b1007d594a741c1fc1 SHA-256: c6e354f3fa7d325ca6fbafe7ba6d360ebb704994123cc9e6f6e1757fafbd8bd8
126 Risk Score

Malware Insights

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

This PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded links, many pointing to disposable domains, suggesting a link farm designed to redirect users to malicious sites. While no scripts were directly extracted, the presence of external URIs and the overall structure indicate a likely attempt to deliver a second-stage payload or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://jacksth.ru/strik?utm_term=sig+p226+mk25+owb+holster PDF link annotation
    • http://finuxezanasa.mygamesonline.org/what_are_the_levels_of_jiu_jitsu.pdfIn PDF document text
    • https://cdn.sqhk.co/vetukalujir/1q3sDVc/royal_caribbean_international_number_of_ships_for_sale.pdfIn PDF document text
    • https://cdn.sqhk.co/sedazozesufu/jd0Yihf/88743438400.pdfIn PDF document text
    • http://nigodofifulo.scienceontheweb.net/59376476067.pdfIn PDF document text
    • https://cdn.sqhk.co/fokigegoma/Rz8UVie/governor_of_poker_2_premium_free_download.pdfIn PDF document text
    • http://tokudujadi.medianewsonline.com/how_to_get_cleared_from_credit_reference_bureau.pdfIn PDF document text
    • http://famozosivupiwij.sportsontheweb.net/kefonu.pdfIn PDF document text
    • http://juxumigine.mypressonline.com/tazutisozarafipefosidiwa.pdfIn PDF document text
    • http://sukidalakag.22web.org/lamaw.pdfIn PDF document text
    • http://lujakivuvig.22web.org/auburn_hills_police_department_accident_reports.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://sotatelovutegep.epizy.com/sistem_pencernaan_manusia_sd.pdfIn PDF document text
    • http://damugiwixosaxo.epizy.com/best_phonics_books_for_1st_grade.pdfIn PDF document text
    • https://ee60c613-3dd1-430d-b711-08e3dcbf0273.filesusr.com/ugd/19ce5d_c4dcabd3f3424c279255bab15ebd9690.pdf?index=trueIn PDF document text
    • http://fararisujis.myartsonline.com/wiboneja.pdfIn PDF document text
    • http://vizumun.rf.gd/rodisigidipuxiparajilofe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c9288b8-8f9a-4d0b-a53f-c25e45e7c4bd/what_does_it_mean_to_be_a_martha.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d8ca909-7070-4170-b267-c6187d5ef5fe/hp_officejet_4500_printer_wireless_setup.pdfIn PDF document text
    • https://12f7643e-9106-4823-89c2-0bdaecd1bc22.filesusr.com/ugd/1f6d71_2639bd4fec4548aa8fff2442297b302e.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/9aea3704-b2d2-4874-8481-5eace5e1c98a/thoroughly_modern_millie_jr_cast_of_characters.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df6c5a15-969b-4cf6-93a4-b4f618740f60/feliz_navidad_jose_feliciano_2020.pdfIn PDF document text
    • https://502e425a-54a0-4661-a3e6-c6e116bdb13d.filesusr.com/ugd/10da26_5297ffbd9b734f05b4026404a7737c22.pdf?index=trueIn PDF document text
    • http://dotopaku.atwebpages.com/purorisuxepefutaruvi.pdfIn PDF document text
    • https://6a1e2a5f-c456-4288-b9d5-5378f87870fb.filesusr.com/ugd/076fac_130cbfbe7e1a49d79c3884dd98c694bc.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/2054a45f-e4f3-4ab0-a0b5-31a5b4f37366/hitchhikers_guide_to_the_galaxy_quotes_dolphins.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_off000100cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100CB 5516 bytes
SHA-256: e8a6d0be6f0025324b6208f421735491e382211cf1770d1ec8eabf88d8b6de9c
font_01_sfnt_off0001139c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1139C 11028 bytes
SHA-256: 41d8fdab6c2d9a764a52fb0d1f3f038ec0eccda2b59405b20883c5eb86664c77
font_02_sfnt_off00013942.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13942 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34