Malicious PDF — malware analysis report

Static analysis result for SHA-256 f66600e622b1f05e…

MALICIOUS

PDF

85.1 KB Created: 2021-02-26 00:22:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ae2dafd0e1b8be93353e2c22bd8896a SHA-1: d03b84ad6b4fb12d5c4ead943dce1df808b7331d SHA-256: f66600e622b1f05e792b8d0c939e7d13c25a0b802eb521207e599da889c4e888
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a suspicious domain, likely intended for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, suggests a lure related to coupons, aligning with phishing tactics.

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://bologen.ru/wix?keyword=staples+25+off+75+coupon+generator
    • https://lakubamovoto.weebly.com/uploads/1/3/0/7/130776542/96dcd7d662a590.pdf
    • http://itclick.pro/tatowelogumoxaar8nc.pdf
    • http://graatorama.space/87373687858rvh82.pdf
    • https://cdn.sqhk.co/wofazexej/9UEJgjq/nulikizuwozitiketepatu.pdf
    • http://rocketdocs.us/25220179561ako9k.pdf
    • http://sugameloxufe.mywebcommunity.org/92252272136.pdf
    • https://cdn.sqhk.co/jinubodilev/gjyhhVL/help_steps_apk_indirme.pdf
    • http://naykaryadom.fun/jekepabusasadizokauf6o7.pdf
    • https://cdn.sqhk.co/bogijifaviba/hg2jc6I/69878099397.pdf
    • https://tisuzozolida.weebly.com/uploads/1/3/6/0/136087901/bb4f0864ebc252.pdf
    • http://gnatural.space/cahier_de_recette_fonctionnelleiqjcn.pdf
    • http://pixxel.life/xonutewuxuwafekekirfz2f8.pdf
    • http://xojuxelase.medianewsonline.com/sony_icfc1pj.cek_clock_radio_with_time_projector.pdf
    • http://pubguckazan.com/488387392977fz7f.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/sefukirexuwekij/67659617619.pdf
    • http://rodedewezijore.atwebpages.com/sobutivaronofeni.pdf
    • https://s3.amazonaws.com/fupanabivote/autodesk_dwg_trueview_2019_english.pdf
    • https://s3.amazonaws.com/jiguwuzobozobaz/best_dd_5e_adventures_reddit.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_off000110a9.bin
84b6d512bef1ef262393c890071acc8e44dc0bfe90fcca414f7c1e179fb65f67		 pdf-font-stream PDF embedded font (sfnt) at offset 0x110A9 5620 bytes
font_01_sfnt_off000123ea.bin
e7a04f9a216375f183f192351fb4de9fac13ee03fd6b06dd533a82e3a0dd078d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x123EA 10260 bytes

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