Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcf889bedda70238…

MALICIOUS

PDF

72.7 KB Created: 2021-02-15 21:04:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: b6676215daf9cb14e8680d4d6371ff29 SHA-1: b199c500067ce4e2a7ce0f8a4369e37a36bd22c6 SHA-256: fcf889bedda70238222f4ab1a9db2daa7c9bcf87a84bc79fb18231dcb86b8ad6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://seumenha.ru/wb?keyword=is%20there%20a%20slow%20cooker%20with%20a%20stainless%20steel%20insert PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4369499/normal_5fc9a5ca01650.pdfIn PDF document text
    • https://cdn.sqhk.co/zuronenom/cjiIj9j/zombie_catchers_game_hack_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/netimupoxojo/XI7Xjjw/36145097234.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420586/normal_5fc92ce80c348.pdfIn PDF document text
    • https://cdn.sqhk.co/gasubapo/0giTigd/83691507554.pdfIn PDF document text
    • http://lalojit.iblogger.org/carenado_atr_42_manual.pdfIn PDF document text
    • https://bimuwosexiwo.weebly.com/uploads/1/3/1/1/131164043/tivavekupat.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/dufekifaral/scholarship_cover_letter.pdfIn PDF document text
    • http://pifutujotot.epizy.com/windows_10_assistant_1809.pdfIn PDF document text
    • https://s3.amazonaws.com/xoguwavosuje/lejijesuboju.pdfIn PDF document text
    • http://gozegatunefafet.epizy.com/kenmore_dishwasher_kick_plate_installation.pdfIn PDF document text
    • https://s3.amazonaws.com/bufipevuril/sexomejonenerudugem.pdfIn PDF document text
    • https://s3.amazonaws.com/wuwabobujasivor/xajarazepa.pdfIn PDF document text
    • http://vopisatewegom.rf.gd/53393212934.pdfIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/56223078549.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 PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dee9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEE9 4980 bytes
SHA-256: f46d76c2a6dce4c5cce83e3ed5ecc2cdbd47e41d7b55fe59818da4995cc19f56
font_01_sfnt_off0000efe3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFE3 11128 bytes
SHA-256: 22f8cf137244738098bfaec664fa811e352e8524e51f5f814f113687580eed95