Malicious PDF — malware analysis report

Static analysis result for SHA-256 fae373f9c87b8785…

MALICIOUS

PDF

75.9 KB Created: 2021-02-05 13:27:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 1ccd55ef132f8542756d262f06a7e694 SHA-1: f9390a1ff102ecb571f6b0ae6de7f566979917d0 SHA-256: fae373f9c87b87857cf65693bae109978ad5bafb0e13da829eccd6f9b60a7f25
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://bologen.ru/wb?keyword=latest%20biodata%20format%20for%20marriage%20docx PDF link annotation
    • http://xsafak.com/kapowusoduporuvevonopaktsu0.pdfIn PDF document text
    • http://avto-document.site/mozuwatugevezokaxf6.pdfIn PDF document text
    • http://galoomer.online/cleaning_service_company_namesi2kqw.pdfIn PDF document text
    • http://medway24.com/kudopebowoj4urab.pdfIn PDF document text
    • https://cdn.sqhk.co/xexisini/hhic4ZW/53406445748.pdfIn PDF document text
    • http://xapozibun.22web.org/89686966459.pdfIn PDF document text
    • https://cdn.sqhk.co/mamevugixej/miaICji/ruxefogoteresusexofidijev.pdfIn PDF document text
    • http://fisusuwisefib.22web.org/34779363881.pdfIn PDF document text
    • http://myimperfectmomlife.com/avancemos_2_unit_resource_book_answersrxh58.pdfIn PDF document text
    • https://cdn.sqhk.co/mupalewefe/ZUCAgem/usb_pinout_blue.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377391/normal_600551154a36e.pdfIn PDF document text
    • http://xikimifo.66ghz.com/a4_size_sheet_thickness.pdfIn PDF document text
    • https://cdn.sqhk.co/zivuzigup/hjbiaig/74015904978.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467325/normal_6014dc46ba598.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dalotidel.epizy.com/chale_aana_full_song_hd_video.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_off0000eb8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB8B 5460 bytes
SHA-256: 1ac680fdf841484dce512bd8ad273c2e8cae3ff2b69eeb3a4a0e96629e710faf
font_01_sfnt_off0000fe0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE0D 10708 bytes
SHA-256: a7159e2121971642b07824b99b654d9e98491158411eb167382890b25090274f