Malicious PDF — malware analysis report

Static analysis result for SHA-256 40e4ad75c15a58c0…

MALICIOUS

PDF

73.2 KB Created: 2021-01-28 14:55:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: cafbc3325f13c16e5a28635e1455aa81 SHA-1: 0e3c9a22441b03e04c2eca39429617722d3a942b SHA-256: 40e4ad75c15a58c0bc0ac6eb8bab89ebf001ec25e9c3f33dd2b847e2714a4d9a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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=lyrics%20training%20learn%20languages%20with%20music PDF link annotation
    • http://jobauthor.online/block_tank_wars_unlimited_money00qja.pdfIn PDF document text
    • https://nolobatunu.weebly.com/uploads/1/3/0/7/130740420/447071.pdfIn PDF document text
    • http://new-leggins.site/46399216882wo3kn.pdfIn PDF document text
    • http://wersita.fun/adidas_yeezy_500_utility_black_restock_datefmggd.pdfIn PDF document text
    • http://itash.space/95389111304g1a6w.pdfIn PDF document text
    • https://cdn.sqhk.co/reretukida/TgeihWR/19130422812.pdfIn PDF document text
    • http://walkover.me/mivaboxobdtpvj.pdfIn PDF document text
    • https://cdn.sqhk.co/wapogade/difCnjh/demarcate_synonym_and_antonym.pdfIn PDF document text
    • http://zoompol.xyz/slenderman_shadow_free_download8dc9g.pdfIn PDF document text
    • https://cdn.sqhk.co/fovulifavu/cKHhbgj/zabefamolin.pdfIn PDF document text
    • http://help-igcopyright.xyz/74502446009z2476.pdfIn PDF document text
    • http://lnstagram-helping-centre.com/867545039090mod1.pdfIn PDF document text
    • https://cdn.sqhk.co/vigesiji/gg2njgE/garurami.pdfIn PDF document text
    • http://ubsvp.com/raxiretabifokoxufejif9eeq.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sidegiri.epizy.com/vigoziga.pdfIn PDF document text
    • http://pulilidason.epizy.com/33202270849.pdfIn PDF document text
    • http://joxisuzu.rf.gd/nulegaxodagawevezujagi.pdfIn PDF document text
    • http://mobotifiriw.epizy.com/68085357636.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_off0000e13c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE13C 5348 bytes
SHA-256: 449686d99f4012b767e7d7079101dcb3a935121b32dc003d2e8c03161ec9d061
font_01_sfnt_off0000f360.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF360 10700 bytes
SHA-256: 6d3c3f154a724e92312105157b9e8023c5b2cd8eed00df174161a36a3b841682