Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbafe70235f2901f…

MALICIOUS

PDF

75.7 KB Created: 2021-02-24 16:30:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: fd9fcffc649cf1dd1c69e488cb01f9e7 SHA-1: aa88f274dc4fb4c99c3c82693325c61df7c07ba7 SHA-256: bbafe70235f2901fda6db5f6edd7b76de7b1ad92879fb19ef79eaf8cb4ac7600
126 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, with one specifically pointing to a resource related to 'python programming book pdf in hindi', suggesting a lure. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a large number of links on disposable hosting, reinforcing the malicious intent. While no scripts were explicitly extracted, the presence of external URIs and the ML classifier's high confidence score suggest this document is designed to redirect users to malicious content, likely for phishing or malware distribution.

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://jacksth.ru/award?keyword=python+programming+book+pdf+in+hindi PDF link annotation
    • http://rufafepikawaj.22web.org/10316682259.pdfIn PDF document text
    • https://cdn.sqhk.co/baresupujar/c5DheJ2/fimajotiludevuzovuzo.pdfIn PDF document text
    • http://golixudib.mypressonline.com/how_much_is_a_soda_machine_worth.pdfIn PDF document text
    • https://cdn.sqhk.co/moxibusas/eH2J22P/spirax_sarco_steam_tools_app.pdfIn PDF document text
    • https://cdn.sqhk.co/lezubenewago/1hbLoha/jepigajosigidalir.pdfIn PDF document text
    • http://lololoj.sportsontheweb.net/hp_photosmart_d110_printer_wont_print.pdfIn PDF document text
    • https://cdn.sqhk.co/pigujoxexate/ojfhcjg/castle_of_illusion_ps4_store.pdfIn PDF document text
    • https://cdn.sqhk.co/lomasamube/vicWwFT/biguletuvalamutamire.pdfIn PDF document text
    • http://xuwuvewisin.mypressonline.com/intellifax_2840_not_receiving_faxes.pdfIn PDF document text
    • http://kenugizi.getenjoyment.net/vasaxagodesanexego.pdfIn PDF document text
    • http://zoguponuwuxoli.medianewsonline.com/63000896721.pdfIn PDF document text
    • http://luxasireku.sportsontheweb.net/norelco_multigroom_5000_vs_7000.pdfIn PDF document text
    • http://terugate.mypressonline.com/sefejegixodejafadujuj.pdfIn PDF document text
    • http://mubokugezop.22web.org/lord_of_the_flies_meaningful_quotes.pdfIn PDF document text
    • https://cdn.sqhk.co/zivudasexoni/ig3gjgf/megan_fox_cute_wallpaper.pdfIn PDF document text
    • https://cdn.sqhk.co/vebiziwob/3jhvjdl/king_s_throne_game_of_lust_heroic_maidens.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://daxepusiz.rf.gd/lithonia_epanl-_24-_40l-_40k_spec_sheet.pdfIn PDF document text
    • http://nejimafalun.onlinewebshop.net/traxxas_stampede_2wd_vxl.pdfIn PDF document text
    • http://jujimewukekupur.epizy.com/mararurirup.pdfIn PDF document text
    • http://judixipe.epizy.com/xufofamefa.pdfIn PDF document text
    • http://kosezofejesuxef.atwebpages.com/fogazerewolebitiluginexi.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_off0000eb0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB0A 5552 bytes
SHA-256: 5d9edc07e2da0153e68cf94a967518b5c1e8ea1ee737d43971364b2630451c7f
font_01_sfnt_off0000fdcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDCD 10308 bytes
SHA-256: 0cca94edc990e56dc230c34bd5a8e066761156305658a57aae3ccf5ddc6f75b8

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