Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1225c1341cb2035…

MALICIOUS

PDF

68.0 KB Created: 2021-02-23 08:22:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: c873ebe595c3158f2a37ed353e4ba1ba SHA-1: d41fb435e2c1b0cbe09fe65f4f31ca4869854de8 SHA-256: f1225c1341cb20354387516f9db0475423c0073b252b4e8066e66e38bb4c824c
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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://bologen.ru/wix?keyword=united+states+crossword+puzzle+answers PDF link annotation
    • http://glasshookahcatering.com/what_are_the_principles_of_bible_study_apps04wp3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489033/normal_600f7d2885b8a.pdfIn PDF document text
    • http://geleostone.online/93485558092pvcwu.pdfIn PDF document text
    • http://adminhalil.com/asteroid_destroy_asteroids_and_alien_invaders_fanfictionxndv5.pdfIn PDF document text
    • http://podeves.xyz/46525750793n0lx.pdfIn PDF document text
    • http://bezprovodov.guru/xemisevigulassez60.pdfIn PDF document text
    • https://roxowuvunesoneb.weebly.com/uploads/1/3/4/8/134889799/ff6271d2062f4d1.pdfIn PDF document text
    • http://poradoit2.site/51394303858fjrk0.pdfIn PDF document text
    • https://vuwapelenepaje.weebly.com/uploads/1/3/4/7/134705438/4153818.pdfIn PDF document text
    • https://cdn.sqhk.co/turanexode/hihx7gd/20451331464.pdfIn PDF document text
    • https://cdn.sqhk.co/fuvebopeweb/ezOPFdM/nosegives.pdfIn PDF document text
    • http://rating-bookmaker.ru/zorifaxorubeq5qll.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/zupenafud/implikasi_urbanisasi_di_malaysia.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_off0000cf36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF36 5200 bytes
SHA-256: 1bc54ca70eb5df3b231c958291caf8c5aabe503610c808d1855e478d3abcd3e4
font_01_sfnt_off0000e116.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE116 10020 bytes
SHA-256: 61a1c979b2eeffa878d4d7cc1aa1d55ac21ac72cd328d641ef6e56f0ab9d3117