Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef70c2bb45873ada…

MALICIOUS

PDF

63.4 KB Created: 2021-03-03 21:05:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 548fcce9b2ffe9ade3c369555002e374 SHA-1: 22cac03927e29031251d066610b6fab0c55a966b SHA-256: ef70c2bb45873ada57211b7374cdaac874401e5a7d2dc9cbf1adf24e33e7b853
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://maypoin.ru/award?keyword=unravel+me+lyrics+by+sabrina+claudio PDF link annotation
    • http://fanisore.sportsontheweb.net/diablo_2_remastered_june_2020.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498983/normal_5fc61da7e094c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370791/normal_60125d8c95ef0.pdfIn PDF document text
    • http://custits.space/5388138576drmmm.pdfIn PDF document text
    • https://xoverepidagagit.weebly.com/uploads/1/3/4/4/134469055/vanoxozijalik.pdfIn PDF document text
    • http://kijofizovurisos.medianewsonline.com/mofojuxukarax.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409239/normal_5ffea394186f6.pdfIn PDF document text
    • https://cdn.sqhk.co/fubemabofof/egcDicq/monofebolajevozifazawebu.pdfIn PDF document text
    • https://cdn.sqhk.co/rodesedaded/jfihRji/planescape_torment_walkthrough_ravel.pdfIn PDF document text
    • https://tivulose.weebly.com/uploads/1/3/4/3/134318041/cb43649d951.pdfIn PDF document text
    • https://mepanomelisegil.weebly.com/uploads/1/3/4/8/134899905/vimopiriku_tesebasoga.pdfIn PDF document text
    • http://akillidestekbasvuruformu.online/game_online_hay_cho_androiddr3fq.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387573/normal_602d865c1ea98.pdfIn PDF document text
    • https://cdn.sqhk.co/sadirorig/cSghZgh/nujuguxunugileje.pdfIn PDF document text
    • https://senovaxevuka.weebly.com/uploads/1/3/5/3/135304629/f689abd5a39d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kofaxafogi.myartsonline.com/how_to_connect_my_jaybird_bluetooth_headphones.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_off0000bdd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDD9 5380 bytes
SHA-256: b4bd5e7e8371245e286591aea3a9789444a65a5cea4293b35d168626fcc76721
font_01_sfnt_off0000d014.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD014 9588 bytes
SHA-256: db098de58a918f7e3a2db6a752ec6ab674dc69c116a205d2a57dcc0e9a3570e9