Malicious PDF — malware analysis report

Static analysis result for SHA-256 e477304c74a5d736…

MALICIOUS

PDF

85.1 KB Created: 2021-03-30 19:39:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f6d3da12929de8c96e69d7c4f3e7506c SHA-1: d5e28d660e76e183d5509cfb2e218247cf108887 SHA-256: e477304c74a5d736071fd495bf06a526eba38ef0e4deca531fc0495b411e5e4c
96 Risk Score

Malware Insights

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

The PDF file contains a heuristic indicating an external URI, which points to a suspicious domain. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://dafemum.ru/wix?keyword=glory+of+the+dead+skyrim+glitch+fix
    • https://cdn.sqhk.co/xifobariw/dSgcT4R/pokemon_detective_pikachu_wallpaper_iphone.pdf
    • https://cdn.sqhk.co/duloputemab/WCgeKib/62851588242.pdf
    • https://cdn.sqhk.co/birugafomafo/bgiIhd0/fimawopujetodib.pdf
    • https://cdn.sqhk.co/zosiwutu/jggjuhf/dictatorship_of_the_proletariat.pdf
    • https://cdn-cms.f-static.net/uploads/4413573/normal_604e78eb85f1a.pdf
    • https://cdn.sqhk.co/lakekomum/dhjaihw/37817948586.pdf
    • https://cdn.sqhk.co/parikozug/dhjThew/collage_maker_app_free_download_for_pc.pdf
    • https://cdn-cms.f-static.net/uploads/4367310/normal_605f90a0c5ac5.pdf
    • https://cdn.sqhk.co/fiduzosi/jihjjf1/8285769147.pdf
    • http://panokaluwavivar.iblogger.org/english_grammar_lessons_list.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://mizuvawilukilel.rf.gd/50870331268.pdf
    • https://uploads.strikinglycdn.com/files/63058dad-fc08-4660-a7b9-d7f351d66545/metal_gear_solid_3_walkthrough_part_1.pdf
    • https://s3.amazonaws.com/dovulavavo/ertalon_4._6_datasheet.pdf
    • https://uploads.strikinglycdn.com/files/e87ab5b9-3b74-4b32-8bef-f3d512ed3f3e/does_toyota_highlander_have_power_liftgate.pdf
    • https://uploads.strikinglycdn.com/files/945d6a3a-e243-483e-8415-4fa1a3fe2100/stihl_battery_blower_bga_45.pdf
    • https://s3.amazonaws.com/vuzufexarevima/photoshop_invitation_card_templates_free.pdf
    • https://s3.amazonaws.com/waxapoz/metal_forming_caddell.pdf
    • https://s3.amazonaws.com/liluvad/11692160589.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010135.bin
c15564209de8635af7cad9cffa8893480814d5cac283b47604db2c4c12ce97de
pdf-font-stream PDF embedded font (sfnt) at offset 0x10135 5384 bytes
font_01_sfnt_off000113a2.bin
c54a904db4b20f8d9061676b2461bd89bfc3bb5ea094509d48975829c483f5d7
pdf-font-stream PDF embedded font (sfnt) at offset 0x113A2 11428 bytes
font_02_sfnt_off00013930.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0x13930 4324 bytes