Malicious PDF — malware analysis report

Static analysis result for SHA-256 07f915bfee2d5d4b…

MALICIOUS

PDF

75.5 KB Created: 2021-02-07 21:47:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 6460ad1d8fd0b18230f7ce17f42a2934 SHA-1: 13b9f68353394dc2d8ec777d468b94a710984b1c SHA-256: 07f915bfee2d5d4b2972c235e65f39a2daba4404622236562c2599c8093d17ba
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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://leonvi.ru/wb?keyword=bulova%20218%20service%20manual PDF link annotation
    • https://cdn.sqhk.co/dajebala/gijcKji/boomerang_email_alternative.pdfIn PDF document text
    • https://wunobenera.weebly.com/uploads/1/3/4/8/134887230/wijeziwebupijom.pdfIn PDF document text
    • https://cdn.sqhk.co/vevajewez/pFfGici/21720641446.pdfIn PDF document text
    • http://laura-egorova.ru/pobozedamobadusijamitawokrcdp1.pdfIn PDF document text
    • http://naturapple.space/jetupoxamavijunodudujux7b2m.pdfIn PDF document text
    • http://strapslap.online/jevavugukinetudoriwawend9gqh.pdfIn PDF document text
    • https://cdn.sqhk.co/dupeguwova/Nbheh2n/46512245586.pdfIn PDF document text
    • http://grampus-shop.com/12_months_cash_flow_forecast_templatet30f8.pdfIn PDF document text
    • http://tk-pobeda.site/74995739877d6d07.pdfIn PDF document text
    • https://cdn.sqhk.co/wadusazilox/jibwfii/snowdrift_game_theory.pdfIn PDF document text
    • https://rajiketuwomap.weebly.com/uploads/1/3/5/9/135957261/4218191.pdfIn PDF document text
    • https://cdn.sqhk.co/natefisaka/Mcsjbgd/tewilejuxexowoxojaxalo.pdfIn PDF document text
    • https://cdn.sqhk.co/kagawupatow/gibghlm/vuzunibabuj.pdfIn PDF document text
    • https://fogufapepupol.weebly.com/uploads/1/3/1/8/131871477/vivapavitu-fezafagibe-kefowa-wewima.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/xonaxevetaf/asco_guidelines_her2_fish.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_off0000e4e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4E1 5432 bytes
SHA-256: ba51a5ec7c79bdc1188029d16d4dc0f8507d06cf57bde9252e3e497405f3751a
font_01_sfnt_off0000f754.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF754 12988 bytes
SHA-256: b94ba8a017d741e12a842a56fd65053cf84dc2e3386e5b2d1d6f701c1ef41d0b