Malicious PDF — malware analysis report

Static analysis result for SHA-256 9134e5a39210f87c…

MALICIOUS

PDF

68.8 KB Created: 2021-01-19 22:26:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 2e988c6b1a9ff5afc08db0117ef17bc9 SHA-1: d9cd7c7a37167f6b9e6f99ce631253c0a9b09f96 SHA-256: 9134e5a39210f87c67f4e613162cc88e40f01a935194d6f7c8dc8c9110bceb6e
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. It contains numerous external URIs, with one prominent URL (`https://trafficel.ru/123?utm_term=oakland+restorative+justice+pdf`) appearing to be part of a link farm designed to redirect users. The PDF structure and embedded content suggest it's a phishing lure, likely attempting to exploit vulnerabilities or trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafficel.ru/123?utm_term=oakland+restorative+justice+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4460232/normal_5fde9dfe706f7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369163/normal_5f972f9a958fd.pdfIn PDF document text
    • http://wovewor.iblogger.org/arabic_fonts_free_for_windows_8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387229/normal_5fb93cb2eec8d.pdfIn PDF document text
    • http://taxiditugivubed.iblogger.org/69934204421.pdfIn PDF document text
    • http://jotijitod.66ghz.com/38027449968.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464865/normal_5fd66fbec8a33.pdfIn PDF document text
    • https://cdn.sqhk.co/dabelego/Hiir1gg/mercantilism_meaning_in_a_sentence.pdfIn PDF document text
    • https://cdn.sqhk.co/zegofurop/W64hjgh/school_management_system_php_project_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/pixazizaze/sgeHqgd/em_dash_shortcut_pc.pdfIn PDF document text
    • http://kutakelipaxeb.22web.org/clinical_psychologist_career_information.pdfIn PDF document text
    • https://cdn.sqhk.co/borefigux/ciehagc/tomb_runner_app.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381547/normal_5fa0cbfe26754.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kebanibaru.epizy.com/68600770725.pdfIn PDF document text
    • http://godutiliwaganos.rf.gd/cantata_147_sheet_music.pdfIn PDF document text
    • http://favekagopu.epizy.com/belize_passport_application_form_for_minors_4b.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubifirigevi/rotogulom.pdfIn PDF document text
    • http://vezapuro.rf.gd/apsrtc_bus_pass_application_2019.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_off0000d047.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD047 5376 bytes
SHA-256: 3840e9cfd977c756b8dbc22ffe96ce1cbc92b4229527060d26594cee44d54f8e
font_01_sfnt_off0000e2ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2AC 10360 bytes
SHA-256: 9985aedb68687af29d7d27e1b1dbf3de40bf258b58e88ac16b6fa2f264b4b9d6

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