Malicious PDF — malware analysis report

Static analysis result for SHA-256 703c75204a0e87d2…

MALICIOUS

PDF

126.3 KB Created: 2021-02-28 16:54:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b95014eb5a1c23dea4b80cdc5b069244 SHA-1: 2075332ba4b5b1a87ae9e202304b55a51e77bbde SHA-256: 703c75204a0e87d25b210525ee18744ea9d4909677759ce378bdf0a09131493a
126 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs, many of which point to disposable domains and are likely part of a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically phishing. Although no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to lead users to phishing sites, aligning with T1566.001 (Spearphishing Attachment) as the likely initial access vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://pelibifir.ru/123?utm_term=ejercicio+91+algebra+de+baldor+resuelto PDF link annotation
    • http://finuxezanasa.mygamesonline.org/lencioni_five_dysfunctions_of_a_team_summary.pdfIn PDF document text
    • http://damvglaz1.xyz/charles_j_kubicki_for_judgey3rzv.pdfIn PDF document text
    • http://wejuzofibab.medianewsonline.com/how_to_get_rid_of_red_acne_spots_on_face_fast.pdfIn PDF document text
    • http://sunakijabe.sportsontheweb.net/jbl_eon_615_owners_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/gewigerajoru/jc6jf20/tuning_fork_hearing_test_hz.pdfIn PDF document text
    • http://uspehdnyaaxyz.xyz/construction_waste_management_plan_templatezeifv.pdfIn PDF document text
    • http://waranijovuv.sportsontheweb.net/how_to_find_ip_address_in_command_prompt_windows_10.pdfIn PDF document text
    • https://cdn.sqhk.co/luxanimev/Qihidhb/ferapuva.pdfIn PDF document text
    • http://mitatizizuje.mypressonline.com/pathfinder_kingmaker_portraits_nsfw.pdfIn PDF document text
    • http://electrumwallet.buzz/3498922011303fne.pdfIn PDF document text
    • http://likedizar.medianewsonline.com/niveles_de_prevencion_salud.pdfIn PDF document text
    • https://sefubokadizafa.weebly.com/uploads/1/3/4/8/134880044/bidubamaragimofa.pdfIn PDF document text
    • http://vufajed.getenjoyment.net/27262402313.pdfIn PDF document text
    • http://nekretnine.site/geometry_worksheet_5._1b_answer_key7jqhz.pdfIn PDF document text
    • https://cdn.sqhk.co/derepinejabi/gUQqQwz/bike_attack_race_stunt_rider_mod_apk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://kivozusemu.atwebpages.com/what_size_tires_are_on_a_2009_ford_focus.pdfIn PDF document text
    • http://kewevagisugimuw.onlinewebshop.net/10078930612.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00016685.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16685 5488 bytes
SHA-256: 7ab05a4fd0377e24afd48f42206f7ab28dadeeb2b63b8492d48fdc91465a7de7
font_01_sfnt_off0001793e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1793E 3720 bytes
SHA-256: d5ecec3e822993868ba70e247019bcdb656a9fee58d620eb93bc70658e929280
font_02_sfnt_off0001849c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1849C 2472 bytes
SHA-256: 0985336ea0f6926754c30de5b1206b0c28d1c6c9677cfe5fadcb828c2de07605
font_03_sfnt_off00018ed8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18ED8 13576 bytes
SHA-256: d29e9a4ca1bff97a86c209643bea452a36cecead125e66607f433079d0bcf2ca
font_04_sfnt_off0001bb9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BB9A 16852 bytes
SHA-256: 0b24cc98602b7b847e10216af0a3adcd923959c033ee6a3209f5f39c7796a050
font_05_sfnt_off0001d367.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D367 6132 bytes
SHA-256: 12f73747789076b9e51aee6ac3188a74c1f0dc4a7e601ea09038cb9bed31039a