Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae922cff3bb82538…

MALICIOUS

PDF

68.2 KB Created: 2021-02-13 11:23:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f44db289cdaefd213b74c83034c0454a SHA-1: de4da283594ae4457e8c8eaa71e1e0332c522d48 SHA-256: ae922cff3bb825383ab5b1c64cc9257054165e94580161729367a8c7faaddf06
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://druttle.ru/wb?keyword=ashokan%20farewell%20music%20sheet PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4370791/normal_60078d3b56fbc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378170/normal_5fce85e0e59bf.pdfIn PDF document text
    • https://doxidadawod.weebly.com/uploads/1/3/1/3/131379698/pefomiduruwo.pdfIn PDF document text
    • https://cdn.sqhk.co/vavewiren/hy9H9mX/ppsspp_gold_psp_emulator_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/tuzevawu/WT5QHjg/wuwupukewawotedi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382187/normal_5ff75607dffbb.pdfIn PDF document text
    • https://denutuzuno.weebly.com/uploads/1/3/4/7/134706868/vojuk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406776/normal_601a03ab6794b.pdfIn PDF document text
    • http://cooldomen.space/bubble_pop_hyuna_lived494p.pdfIn PDF document text
    • https://bobovisosusare.weebly.com/uploads/1/3/5/3/135394734/kovajukij.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489844/normal_601d5ec15b052.pdfIn PDF document text
    • https://divowotekek.weebly.com/uploads/1/3/4/7/134759223/75a6e8d2ce.pdfIn PDF document text
    • http://dkmz2.club/24395125193bzbvo.pdfIn PDF document text
    • https://cdn.sqhk.co/kupejabel/hahagcW/toxamimewevubodinejule.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/rojalexipokadaz/brute_force_wifi_hacker_apk.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_off0000cc40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC40 5268 bytes
SHA-256: 7e19d246f20ddd794bd788be32bf885b53588611228641c9826fe58fa37373f8
font_01_sfnt_off0000de10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE10 11196 bytes
SHA-256: 801e4ff4de99b39570f770ea679453644d1b33c7d3c1115286c616ea0b11ca68