Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae082df780aaf883…

MALICIOUS

PDF

67.3 KB Created: 2021-02-21 22:43:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5c8d66d240216240c0f3623d98a93f4a SHA-1: e60fda465350a2a960b065c090c770c8860f90d0 SHA-256: ae082df780aaf883427d0c7284da86b7bf33e745b4ceab0aa5b43475c99c74ec
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://baarspo.ru/wix?keyword=vortex+retro+arcade PDF link annotation
    • https://viwosexoteb.weebly.com/uploads/1/3/4/6/134631328/8983257.pdfIn PDF document text
    • https://cdn.sqhk.co/feripamapuv/ctifbi0/bukenadol.pdfIn PDF document text
    • https://cdn.sqhk.co/selugijibix/9Cjbjie/51115398962.pdfIn PDF document text
    • https://cdn.sqhk.co/vemudumuxixu/hchejbp/2020_fantasy_football_rankings_by_position.pdfIn PDF document text
    • http://neuroncraft.online/fizeginoxxvd6.pdfIn PDF document text
    • http://jiludedo.iblogger.org/ruzewinatuxozinu.pdfIn PDF document text
    • http://sfhgfje5df.xyz/siruthai_aararo_aariraro_ringtonepito8.pdfIn PDF document text
    • http://albl.ru/ludomibadolog7vhw.pdfIn PDF document text
    • http://tulotipokumubo.iblogger.org/wuxene.pdfIn PDF document text
    • https://cdn.sqhk.co/zesonixiv/jdjhNsw/13306410768.pdfIn PDF document text
    • https://timigotevawil.weebly.com/uploads/1/3/5/3/135329967/malifov.pdfIn PDF document text
    • https://radogatibemif.weebly.com/uploads/1/3/2/8/132815767/8508507.pdfIn PDF document text
    • http://fepasorugon.22web.org/31092861044.pdfIn PDF document text
    • http://tcerkovniekupola.space/porsche_944_rally_car7wbbl.pdfIn PDF document text
    • https://cdn.sqhk.co/zapiseniw/jvWlPyR/goal_a_soccer_football_arcade_game.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jeburam.epizy.com/57226081217.pdfIn PDF document text
    • http://fuzezufomazo.rf.gd/nexus_4_release_date.pdfIn PDF document text
    • http://sinipuxi.epizy.com/76761116951.pdfIn PDF document text
    • http://gakifok.rf.gd/arabic_translator_app_free.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_off0000cbc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBC5 4756 bytes
SHA-256: 02bcf234ca4534e07d21a518e7c34d9bc7f824e0ef8801cf02e25e61eaa1c078
font_01_sfnt_off0000dc06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC06 10608 bytes
SHA-256: df893c72a47f7ded70894e916b4e9ab41221a90cb8af2967d96f354acfded308