Malicious PDF — malware analysis report

Static analysis result for SHA-256 c24fee465c0df2d6…

MALICIOUS

PDF

72.3 KB Created: 2021-02-26 00:09:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: f83b0e5b8887c2b94d05ebbffb46b7c0 SHA-1: 37393f80895911cd6cacfab3ca3cc2ddfafc1b6c SHA-256: c24fee465c0df2d685b97b3cd588eeaf0971f978017be3022b2761caa3e4654b
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/award?keyword=how+to+apply+for+a+job+at+lowes PDF link annotation
    • http://accface.in/vosexg2tkn.pdfIn PDF document text
    • http://tcerkovniekupola.space/kudinebegekazaxebipelgdh.pdfIn PDF document text
    • https://cdn.sqhk.co/tasokuxu/yjchjrz/sim_toolkit_application_not_installed.pdfIn PDF document text
    • https://cdn.sqhk.co/towinomer/chdgfhg/wosobesuvedavutaxo.pdfIn PDF document text
    • http://makedctl.site/42084593534jm2hm.pdfIn PDF document text
    • https://cdn.sqhk.co/wisulekekij/BhcYggq/secret_rooms_mod_1._12_2_9minecraft.pdfIn PDF document text
    • https://kawotubizon.weebly.com/uploads/1/3/1/8/131871780/duxufelemaz.pdfIn PDF document text
    • http://busivel.xyz/vekobonozegu11ot7.pdfIn PDF document text
    • https://cdn.sqhk.co/rubalibuzodi/ghgiQja/zegalaweviguga.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/donake/i_love_you_full_movie_bengali.pdfIn PDF document text
    • http://zutugidod.onlinewebshop.net/66603923356.pdfIn PDF document text
    • http://wufagezigedo.onlinewebshop.net/zujuwefojuzazosil.pdfIn PDF document text
    • http://fapubogodomeduj.epizy.com/textbook_of_caesarean_section.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_off0000df3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF3F 5268 bytes
SHA-256: f8889c113a4b049f607e9ca4eec77f513926ffcb7ff5d1dd83a324fd42117b3f
font_01_sfnt_off0000f14b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF14B 10368 bytes
SHA-256: bede242001c7cc6f3422d1600939f4b6f5f1561dab9a6c29a948e0159696c1df