Malicious PDF — malware analysis report

Static analysis result for SHA-256 a17a857a06d3066a…

MALICIOUS

PDF

81.2 KB Created: 2021-03-09 05:56:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 522588aff1e35c949bb4efddf9e98b24 SHA-1: 217e9beb62257795ae8196e2efae8a7c1cd7999e SHA-256: a17a857a06d3066a5d8ab21707c84bd8fef5bdeaf58a9cb3dcadcab1f8bb7828
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The document body, though heavily obfuscated, suggests a lure related to a "Toshiba tv owners manual". The presence of numerous external URIs, many pointing to disposable hosting and forming a link farm, strongly suggests a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://midufefew.ru/wix?keyword=toshiba+tv+owners+manual PDF link annotation
    • http://bafedudovodamo.medianewsonline.com/89611533575.pdfIn PDF document text
    • http://samyog.ru/probability_on_numbers_worksheet_answer_keyk0iwu.pdfIn PDF document text
    • https://cdn.sqhk.co/likamigid/bbviWgg/dodejigukilaf.pdfIn PDF document text
    • http://italysummer.fun/fixupuvedekimezec68m7.pdfIn PDF document text
    • http://bestgirl69.com/tadaratavesarokuxiu25qt.pdfIn PDF document text
    • https://cdn.sqhk.co/ditetona/icihmZy/76188257661.pdfIn PDF document text
    • http://jabilevij.mypressonline.com/14635234893.pdfIn PDF document text
    • http://onlinetiser.website/aparato_respiratorio_organos_que_lo_forman81adi.pdfIn PDF document text
    • http://takipibimaxubov.sportsontheweb.net/what_are_enfps_good_at.pdfIn PDF document text
    • https://cdn.sqhk.co/sotatixorawi/ghCjbie/lufote.pdfIn PDF document text
    • http://lorakuze.sportsontheweb.net/us_billionaires_got_richer_during_pandemic.pdfIn PDF document text
    • http://winclean-shop.space/206238433984rnd1.pdfIn PDF document text
    • https://cdn.sqhk.co/vizakifito/Hgjjbgh/class_9th_science_ncert_solutions_chapter_3.pdfIn PDF document text
    • http://bovewitavivebu.getenjoyment.net/black_and_decker_8_cup_food_processor_troubleshooting.pdfIn PDF document text
    • http://mumezofenina.22web.org/office_halloween_costume_contest_flyer_template.pdfIn PDF document text
    • http://tejaberi.iblogger.org/85076058686.pdfIn PDF document text
    • http://mifvideo.space/68751293638dbaon.pdfIn PDF document text
    • http://saveyoutubebot.com/denon_avr_16135sven.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f5a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5A1 3516 bytes
SHA-256: f1e8e52b01a441abb0c68413186d5a88939f5b97eff96d5b28bb511b31474b12
font_01_sfnt_off0001022f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1022F 5164 bytes
SHA-256: da9e5df08f1b0a8ad87eea0a7f8cfc6e14bcc5e4b06d4b5d4e86065bfe31b45b
font_02_sfnt_off000113a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113A6 10388 bytes
SHA-256: e316ef9ddb2e78ce7ba5b6def33c720cfa84a2392ab678d2eaf209b2bee6413e

Open this report in the interactive analyzer, or submit your own file for analysis.