Malicious PDF — malware analysis report

Static analysis result for SHA-256 f09a392d466d30bb…

MALICIOUS

PDF

70.2 KB Created: 2021-02-27 08:38:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 4e5019910d51ab4a86975cfec7ca180b SHA-1: ccd80f70c90d9882f88b122a7c7e4fb2fbd98519 SHA-256: f09a392d466d30bb084533ae17a80f60609bd2b8324977a460a2adc81b58d4c9
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://xajibur.ru/wix?keyword=bloon+td+5+unblocked+77 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4379614/normal_5fd7a56491b21.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404103/normal_5ff496ec70198.pdfIn PDF document text
    • https://cdn.sqhk.co/jawutuwek/fcDAJjb/swing_rider_apk_mod.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478669/normal_6009765988ba9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391302/normal_5fc733e9a0b28.pdfIn PDF document text
    • https://cdn.sqhk.co/xubipoxeguza/ia8iejf/39765320745.pdfIn PDF document text
    • https://pebabole.weebly.com/uploads/1/3/4/6/134698512/pakavoluza-jupofa-pejafumodaj-radilogodo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485705/normal_6011e5aaa4f3c.pdfIn PDF document text
    • https://cdn.sqhk.co/lugizumevemu/iinhcjg/87719377407.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384142/normal_5ff765c362bc7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403141/normal_5fcd5f408cc8a.pdfIn PDF document text
    • https://cdn.sqhk.co/diratukuz/E4sjgPS/texas_onestop_financial_aid.pdfIn PDF document text
    • https://kaxorude.weebly.com/uploads/1/3/4/0/134095875/3006399.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475376/normal_6024f51a5f4d3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495392/normal_5ff78c6103a3c.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/wekibik/82830218884.pdfIn PDF document text
    • http://kimajuj.epizy.com/crusader_crossword_today_answers.pdfIn PDF document text
    • http://gonoxil.rf.gd/moog_sub_37_second_hand.pdfIn PDF document text
    • http://ralipuzejemozuz.epizy.com/24867205318.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_off0000d931.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD931 4904 bytes
SHA-256: 7d2d11779b16c9ba004b42c3eed15fe6c04a2b3506708970a4ad5aece13f0aa0
font_01_sfnt_off0000ea04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA04 9952 bytes
SHA-256: 8c9f065c4a6f29d7f2d0e8796e202cff3ed43559d4a71e3ae07ada87bbf6a2ae