Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e19203b89c80400…

MALICIOUS

PDF

73.3 KB Created: 2021-01-09 19:11:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1d42a3c4c2f19355a2566c9576dea553 SHA-1: 771397a2cf3dc9e86ebfacb43993e70e497e4f6f SHA-256: 2e19203b89c8040092e247f2413336bcc1910eb25cb1dc711a94e8277de3931f
96 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, with a high risk score. It contains an embedded URI pointing to 'trafftec.ru', which is likely a phishing or malware distribution domain. The document body is heavily obfuscated, preventing a clear understanding of its specific content, but the presence of the external URI strongly suggests a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://trafftec.ru/aws?utm_term=plastic+bags+vs+paper+bags+pdf
    • https://site-1171771.mozfiles.com/files/1171771/60296781496.pdf
    • https://site-1168031.mozfiles.com/files/1168031/freeze_pumpkin_pie_after_baking.pdf
    • https://site-1174981.mozfiles.com/files/1174981/hashiriya_drifter_1_racing_unlimited_money.pdf
    • https://site-1194091.mozfiles.com/files/1194091/vumagokajuzelizusex.pdf
    • https://cdn.sqhk.co/vibifexode/1tgjjed/zusoronimolosex.pdf
    • https://cdn.sqhk.co/vateviti/ggibiej/bubble_shooter_old_game_apk.pdf
    • https://cdn.sqhk.co/jagapifa/F7LMgfH/nasty_goats_mod_apk.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/tanikanaw/3527687357.pdf
    • https://s3.amazonaws.com/kozibowisenatu/xurujugobeli.pdf
    • https://s3.amazonaws.com/fekazudabo/72163777824.pdf
    • https://s3.amazonaws.com/loxopudizus/62866677462.pdf
    • https://s3.amazonaws.com/kakekojezutok/cambridge_university_press_exam_copy_request_form.pdf
    • https://s3.amazonaws.com/biwubeleba/59064774764.pdf
    • https://s3.amazonaws.com/sesafefanulokam/guarana_dosagem_usual.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e01d.bin
ec64bb9ad731384c4d486879cc073a5fcbf0c61ae9338af03327503129db0579		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE01D 5524 bytes
font_01_sfnt_off0000f2f7.bin
ce1d69e02888c5a1ee6657bb7fbacb8d2c268607d8bccb0ec5b4f4ff40930918		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF2F7 11016 bytes

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