Malicious PDF — malware analysis report

Static analysis result for SHA-256 befee5e08fbdbe90…

MALICIOUS

PDF

70.4 KB Created: 2021-02-27 05:32:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: dc0b24b692bf98eba8526d32ed3e8c0d SHA-1: ea821bd91e5ada66803eced39b67b1e19e0c593f SHA-256: befee5e08fbdbe90b6325466a15029255706e0697a4f3e6d446b8847b4faf8ca
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://soxebez.ru/award?keyword=what+is+a+social+security+form+ssa+1099 PDF link annotation
    • http://xuzerujagojagip.scienceontheweb.net/ford_mustang_shelby_gt500_price_in_south_africa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379844/normal_5ff4b4040f172.pdfIn PDF document text
    • http://borejukeluteva.mygamesonline.org/filum.pdfIn PDF document text
    • https://cdn.sqhk.co/bamosabubesi/jgibESX/sixejenokubokumeno.pdfIn PDF document text
    • http://ita-fitness.fun/what_are_different_types_of_mental_health_disorders29hs3.pdfIn PDF document text
    • http://nonowun.mywebcommunity.org/34318531663.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404103/normal_5ff9b33611636.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421788/normal_600bfec8336c4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vejegaba.atwebpages.com/bomojujeb.pdfIn PDF document text
    • https://s3.amazonaws.com/gofiguj/asm_study_manual_for_soa_exam_p.pdfIn PDF document text
    • https://s3.amazonaws.com/dovulavavo/class_12th_psychology_book.pdfIn PDF document text
    • https://s3.amazonaws.com/pusori/adblock_plus_android_chrome.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_off0000d4ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4CA 5588 bytes
SHA-256: 34f374bf488b19a2e44971f634a6fc4b897626d16cb91876e9a1a954ff306f08
font_01_sfnt_off0000e7b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7B1 11120 bytes
SHA-256: 4cfc0e6562659b2104ed1c2d6f4b90eff966ebdb3d628b30b92833cae60950c0