Malicious PDF — malware analysis report

Static analysis result for SHA-256 29f55f49078656ce…

MALICIOUS

PDF

74.8 KB Created: 2021-03-24 09:52:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ec34d33fdfbc33c524fab43e0baa321 SHA-1: 5af3aba4f203bf6ae1e216f646bb68d0786277b9 SHA-256: 29f55f49078656ce6f3108682f0738d0803629293dec70e657684dfec52db337
96 Risk Score

Malware Insights

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

The ML classifier and ClamAV detection strongly indicate maliciousness. The presence of numerous embedded URLs, including one that explicitly mentions 'award', suggests a phishing or social engineering lure. While no scripts were directly extracted, the PDF structure and embedded URLs point towards a malicious document designed to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://soxebez.ru/award?keyword=international+accounting+standard+21+pdf
    • http://biggymstoe.com/kurotofej2uq.pdf
    • http://dojaligiwojop.22web.org/fury_warrior_leveling_guide_bfa.pdf
    • https://cdn-cms.f-static.net/uploads/4487658/normal_600cb5dd7466a.pdf
    • https://cdn.sqhk.co/tufiroxova/gehhsex/pekovovewawaxe.pdf
    • https://cdn.sqhk.co/neviragar/Oihggx7/bikorufotokarige.pdf
    • http://bluebadgeform.com/what_is_the_best_meal_replacement_to_lose_weight489a7.pdf
    • http://gifozuxozud.22web.org/48260828762.pdf
    • https://cdn.sqhk.co/xewumoxu/e7geiLI/zomujedike.pdf
    • https://static.s123-cdn-static.com/uploads/4389797/normal_5ff06f0322e50.pdf
    • http://ottics.ru/luluremabj1kba.pdf
    • http://unreguezff.rest/35382566822oxxoe.pdf
    • http://leftoutclub.com/53010628445aru14.pdf
    • https://cdn-cms.f-static.net/uploads/4474759/normal_6034d6922b885.pdf
    • http://rubyshup.space/pilejawomebopemefimafjdkwd.pdf
    • https://cdn-cms.f-static.net/uploads/4475588/normal_60524cdd4a616.pdf
    • https://cdn-cms.f-static.net/uploads/4485568/normal_6034e0f71efba.pdf
    • http://hookup754.fun/diferencia_metal_gear_solid_2_substance_vs_sons_of_liberty_downloadzkakn.pdf
    • http://13millions-warzone.store/324444290729bsad.pdf
    • https://static.s123-cdn-static.com/uploads/4454435/normal_5ff5da43bb421.pdf
    • https://static.s123-cdn-static.com/uploads/4392451/normal_5fe291d9babab.pdf
    • https://cdn.sqhk.co/nemoludajedu/Bhjiaic/london_fields_free_online_movie.pdf
    • https://static.s123-cdn-static.com/uploads/4466662/normal_5ff712e9c6012.pdf
    • https://static.s123-cdn-static.com/uploads/4476765/normal_5ff3f08a5b236.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://bozudob.epizy.com/pisixonevemifamevatiz.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_off0000db83.bin
a8cd58a590a9d31a64f04757d56aced7fe8b2d6bdd5d5158de7e3c8b6faa4e8a
pdf-font-stream PDF embedded font (sfnt) at offset 0xDB83 5444 bytes
font_01_sfnt_off0000ee1a.bin
8ebd57889f757f7696a8ada9e25e5c056c9c81b93087d62b0173b2d815eee6fd
pdf-font-stream PDF embedded font (sfnt) at offset 0xEE1A 20612 bytes