Malicious PDF — malware analysis report

Static analysis result for SHA-256 582658384d8e4ad4…

MALICIOUS

PDF

42.2 KB Created: 2021-04-19 15:33:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5472780ecdb05d347e3dc543b686bd11 SHA-1: 168adaf0fbe0c11a3f347075045775034c132fae SHA-256: 582658384d8e4ad47595da6e297ed62defeda32facd6956ede7f7391f4024e05
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing lure. It contains an embedded URL pointing to 'lozipotod.ru', which is likely used to redirect the user to a malicious site or download further malware. The document body is heavily obfuscated, but the presence of external URIs and the PDF_IMAGE_LURE heuristic suggest a deceptive intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8150

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
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 42 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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
  • 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://lozipotod.ru/strik?utm_term=is+flipping+homes+profitable
    • https://cdn.sqhk.co/bomumuxa/8jh1Njg/pidotidobunokibatazoxif.pdf
    • https://static.s123-cdn-static.com/uploads/4498994/normal_5fee4474e140c.pdf
    • https://static.s123-cdn-static.com/uploads/4408863/normal_5ffcc85e9e5dc.pdf
    • http://kino-vezde.ru/283114986686mcht.pdf
    • http://lnstagramcopyrightmanagement.com/lovarokowkcos8.pdf
    • http://rupekudufim.22web.org/android_app_development_for_beginners_free.pdf
    • http://lidudopunabiril.22web.org/92130239241.pdf
    • https://cdn-cms.f-static.net/uploads/4457008/normal_6046735204768.pdf
    • https://cdn.sqhk.co/wekaradukuve/ighhege/pako_2_secret_cars.pdf
    • http://bixesifebara.iblogger.org/finuligatudunudejetiz.pdf
    • https://cdn.sqhk.co/rurizibaxami/Wgjs53h/89394472638.pdf
    • https://cdn.sqhk.co/numavagoko/hjXge9r/54589179516.pdf
    • http://getsol.xyz/85119905247kx0zx.pdf
    • http://confirmyourverifiedbadge.com/akshay_kumar_film_kesari_songfc5s7.pdf
    • http://leworowotamab.iblogger.org/dancing_queen_sheet_music_ssa.pdf
    • http://mewatubaliz.epizy.com/31316096110.pdf
    • http://biwedidato.rf.gd/bizagejekawemofu.pdf
    • http://zejenideve.rf.gd/58937692340.pdf
    • https://uploads.strikinglycdn.com/files/0a06ec13-40f8-4dfb-ad08-6eff1235b30d/84603441718.pdf
    • https://uploads.strikinglycdn.com/files/348d3d0a-b101-45c1-9f71-62b9955a2a5d/que_significa_si_sueas_que_vomitas.pdf

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