Malicious PDF — malware analysis report

Static analysis result for SHA-256 c865f5cbe22e98b5…

MALICIOUS

PDF

85.3 KB Created: 2020-12-29 13:09:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: d90dd9a88383c7f11647a8b78b390b3e SHA-1: 1c4bc7d0234745b163c834d7b09b2c45fc6643e3 SHA-256: c865f5cbe22e98b550fd5b0c8a80ce46d08b212892c25231adb591b5c1b7b74b
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous external links, with one prominent URL pointing to a suspicious domain that appears to be part of a link farm or phishing operation. ClamAV and ML classifiers also flagged this PDF as malicious, specifically as a phishing trojan. While no scripts were directly extracted, the PDF structure and heuristic firings suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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 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.
  • 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://traffnew.ru/strik?utm_term=usb+cable+pinout+diagram PDF link annotation
    • https://winugemu.weebly.com/uploads/1/3/1/0/131070294/9611818.pdfIn PDF document text
    • https://fiselowozol.weebly.com/uploads/1/3/4/3/134366189/3938e069.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373516/normal_5f92063b15ed9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413867/normal_5fa3e9b25ef99.pdfIn PDF document text
    • https://newejata.weebly.com/uploads/1/3/3/9/133999860/lopedepakevaxa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/rexogeguxosix/spongebob_lights_camera_pants_pc_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e3bf9b0-498f-4a22-8a99-197a30010142/commandants_reading_list.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07779c60-c785-4557-8277-5895b7346c5f/senior_captions_for_instagram_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/bubodeliza/stihl_blowers_parts_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/pegebunov/tennis_draw_sheet_for_16_players.pdfIn PDF document text
    • https://s3.amazonaws.com/mawesenasijoser/bissell_proheat_carpet_shampooer_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b17d531-5c5e-4419-b581-d832f81e4bf5/76865680389.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/asma_cardial_adalah.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6af64e44-fe2b-4159-9e1e-ef55a735f42f/pijivajokefav.pdfIn PDF document text
    • https://s3.amazonaws.com/pesetufavo/goriwixobuwosuziwikoze.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53309a2c-1864-4b72-896f-59c85724c109/vebipezudufuv.pdfIn PDF document text
    • https://s3.amazonaws.com/tufujifinobiro/houghton_mifflin_math_grade_5_answers.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dbbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBBD 6588 bytes
SHA-256: 746cda19d0a45b0d6108c63ff8192b2f88c2fff5e5937e692a7cb04b31166607
font_01_sfnt_off0000ec06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC06 2996 bytes
SHA-256: f938080ac8f07cd1e7c5656e4cc8eacb344fec34677fbae0a1d5ee4e7cd44531
font_02_sfnt_off0000f6b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6B4 5524 bytes
SHA-256: 778d7506f6741bbd503e71a8bc4006ee97439f84de5b70001a2f443ba20afe2d
font_03_sfnt_off00010966.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10966 11348 bytes
SHA-256: 7ad9b2c4eaa03b1051abc18706d9a6844ce1a5e0a22fb0bb882fa044a90904fe
font_04_sfnt_off0001304f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1304F 16468 bytes
SHA-256: d46d823a18fbbf6fa43ef00c459b505c1d530d3397bcefe77fee83b75e47e268

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