Malicious PDF — malware analysis report

Static analysis result for SHA-256 26f4ac7f5b812e28…

MALICIOUS

PDF

71.2 KB Created: 2020-11-30 23:14:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-19
MD5: b98c246e4e99d3646ba664e17a9dc816 SHA-1: a73c6affa15261b15bc9c84baad20a4f736b3262 SHA-256: 26f4ac7f5b812e2800b7bf3c4db8b6957ba50e97cef35464886be350f7559f25
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://s3.amazonaws.com/kezemiradigu/10912268849.pdf In PDF document text
    • https://s3.amazonaws.com/fasanag/16823554355.pdfIn PDF document text
    • https://xezaresirut.weebly.com/uploads/1/3/4/7/134712286/0d2a0f01b7ab3.pdfIn PDF document text
    • https://s3.amazonaws.com/farefasejikap/missguided_tailored_blazer_midi_dress.pdfIn PDF document text
    • https://garagagu.weebly.com/uploads/1/3/4/3/134364865/bb31e94.pdfIn PDF document text
    • https://vagewojevibo.weebly.com/uploads/1/3/4/8/134873572/kuwunadubivizak_pekapuwa_mitaf.pdfIn PDF document text
    • https://s3.amazonaws.com/ribowexulo/lg_dley1701ve_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/xamapebonijos/timesheet_15_minute_increments_excel.pdfIn PDF document text
    • https://niliwuwez.weebly.com/uploads/1/3/4/2/134265541/lajiresenav_keredijavit.pdfIn PDF document text
    • https://traffset.ru/123?utm_term=marshall+mg15dfx+schematicPDF link annotation
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000c11f.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000c11f.bin)
    • https://uploads.strikinglycdn.com/files/af35efbb-1b45-405a-94cc-4c582a48447b/watch_hip_hop_abs_fat_burning_cardio_online_free.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc19eb9f7cf8c75403006e8/t/5fc383a8eaf37e3b640962ce/1606648745253/daniel_boone_high_school_address.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc302a66b97992eb569afe6/t/5fc4e036f81c9a2a0c3b92bc/1606737975605/flight_pilot_simulator_3d_free_online_game.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe1817bc819f1cf4a0c9e2/1606293528109/xoluvasefaromaregofululur.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e0f6ce9-63e1-4fe6-a127-cc2fcbd4b3bd/xepuweposudejit.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 extracted file (font_00_sfnt_off0000c11f.bin)
    • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off0000f935.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off0000f935.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c11f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC11F 5684 bytes
SHA-256: 6e3c7b308273d11d28887b2e549442bd8c85fe92c6a1b607dadb172deb87052a
font_01_sfnt_off0000d466.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD466 10832 bytes
SHA-256: 46eea19426cd9b6863b2e8bd46db3c0390e7046fb8034d92cc5a0f76d3dfbf50
font_02_sfnt_off0000f935.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF935 16152 bytes
SHA-256: 26c4ce6e8470e58473ac97db449abb1e2b787632226a0700fe4895b8e93437e4