Malicious PDF — malware analysis report

Static analysis result for SHA-256 fffbde56a715b7b2…

MALICIOUS

PDF

72.6 KB Created: 2021-02-17 18:01:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 411d56b5e4d23ba1a36c7446cce4380e SHA-1: f27f7a89a39b1475c7aaa877936287d09c6f8987 SHA-256: fffbde56a715b7b2ec6b97e305e152e16e3e1a32a9e495461208adb1e5d2e37c
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://leonvi.ru/wix?keyword=rab+guide+gloves+review PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4427093/normal_5fef47fa6875f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425921/normal_5fce66a382e7e.pdfIn PDF document text
    • https://s3.amazonaws.com/kegubinefuda/analyse_de_la_boite_a_merveilles.pdfIn PDF document text
    • https://cdn.sqhk.co/dezorevukor/jdOhcjj/dungeon_chronicle_mod_apk_2._45.pdfIn PDF document text
    • https://cdn.sqhk.co/bebumula/Ahcge5H/dukelusenez.pdfIn PDF document text
    • https://s3.amazonaws.com/zabejuvijolu/frontline_commando_apk_full_version.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381547/normal_602a6d66f23cf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412905/normal_5fed9cf885544.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/52429779628.pdfIn PDF document text
    • https://cdn.sqhk.co/lululitoj/eOFml44/66366635748.pdfIn PDF document text
    • https://rebazizezasij.weebly.com/uploads/1/3/4/5/134586802/nivirivoporopi.pdfIn PDF document text
    • https://tesujirigagorin.weebly.com/uploads/1/3/4/8/134869290/a96d6e69.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kolenexe.epizy.com/wimemazuwaxoposowesite.pdfIn PDF document text
    • http://jakifulugimadi.rf.gd/android_studio_installation_steps_in_mac.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_off0000e067.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE067 5292 bytes
SHA-256: 33cedfd036498b4f243a708d590fd4224cee63a3a9d22714f57faaec888487fd
font_01_sfnt_off0000f28c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF28C 10264 bytes
SHA-256: 66ad6462ef5874526ea49c10b751e8044d80178c03a74eb876484545348f5f71