Malicious PDF — malware analysis report

Static analysis result for SHA-256 fae84ff5a18ba0bb…

MALICIOUS

PDF

70.1 KB Created: 2021-03-03 22:24:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 698c3eccd7e2872ed533edfc067ee7bf SHA-1: 737fcd8b4a86b5d521eea3f244077d04be69ed7a SHA-256: fae84ff5a18ba0bb3530be21eeabe493bd1d3e1976859462dd13a79496cc7b90
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a phishing site, disguised as a search result. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URI suggest it's designed to trick users into visiting a malicious domain.

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://xezojetit.ru/strik?utm_term=where+to+buy+a+ds+lite
    • http://woxuruko.medianewsonline.com/australian_native_wild_dogs.pdf
    • http://mitisavad.getenjoyment.net/pavel_tsatsouline_strength_training.pdf
    • http://soteguziropuku.22web.org/wapejavaripexudujoj.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://muvalinifotu.rf.gd/pidanumoxo.pdf
    • http://gadodapav.rf.gd/21808782033.pdf
    • https://s3.amazonaws.com/dufekifaral/30450300789.pdf
    • http://fejesaj.epizy.com/honeywell_rth230b_thermostat_operating_manual.pdf
    • http://doxilotosifoku.epizy.com/nebumiluzozalikajire.pdf
    • http://fedasumenusum.rf.gd/gizarevujuti.pdf
    • http://lojosuxotugades.epizy.com/89631895589.pdf
    • http://jipidabaxepej.epizy.com/lebiradufuwimaso.pdf
    • http://tigaxulajaju.epizy.com/bhai_behan_shayari_status.pdf
    • http://rovunebezub.epizy.com/xipurabofut.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_off0000d575.bin
2814d3e86a631f0283306f7ef57305d64bb7975c4f898028856593777b2bad61		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD575 5168 bytes
font_01_sfnt_off0000e70e.bin
7595b7b8e6ba94d34894ed389bd3a01880500e4f1754b65358fc8ea971a4100c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE70E 10736 bytes

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