Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b1d254c9b5d080a…

MALICIOUS

PDF

74.8 KB Created: 2021-03-01 07:27:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: cb6ecacfb3669731c2fad6503abb76d0 SHA-1: 599ae915e279223ae431628ff1a5d7e6f1407252 SHA-256: 0b1d254c9b5d080aa5503c7af1b64f0ac63a5012f1c52722f28603bd1a6f6d16
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jumiwimov.ru/123?utm_term=what+are+some+interesting+informative+speech+topics PDF link annotation
    • https://namonivet.weebly.com/uploads/1/3/4/4/134493383/bafalu_pikoduxakanajaz_jetuvivo_jarajaf.pdfIn PDF document text
    • https://sifukimoja.weebly.com/uploads/1/3/4/3/134357082/9734199.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368742/normal_60009fc454512.pdfIn PDF document text
    • https://pudisemibupar.weebly.com/uploads/1/3/4/0/134096773/7ca1fff804764.pdfIn PDF document text
    • http://wunadimizurened.medianewsonline.com/eheim_2217_filter_maintenance.pdfIn PDF document text
    • https://kesiwupi.weebly.com/uploads/1/3/1/4/131407351/3929562.pdfIn PDF document text
    • https://xuvasilibozin.weebly.com/uploads/1/3/5/3/135335949/vawazu-dizaxulut.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369158/normal_6014fa049ba9f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mufozugiro.rf.gd/how_much_does_a_1997_honda_shadow_1100_weight.pdfIn PDF document text
    • http://zulorokufejepa.rf.gd/company_of_heroes_2_trainer_free.pdfIn PDF document text
    • http://soxomidil.epizy.com/bv_raman_books.pdfIn PDF document text
    • http://maboduxivugiv.rf.gd/sobajabab.pdfIn PDF document text
    • http://rinivuwuvo.epizy.com/vonififikosuvozewusugaru.pdfIn PDF document text
    • http://pepebejawu.epizy.com/bahubali_2_film_mp4.pdfIn PDF document text
    • http://potosalusuk.rf.gd/chappells_sheet_music_london.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_off0000e5a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5A9 5472 bytes
SHA-256: 2608eee0c7dc1ef81d2399dbe02b1d7e0cbfbd28345ec590e8680d37a7f1f053
font_01_sfnt_off0000f837.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF837 11044 bytes
SHA-256: 470b09e29e4924d5e8477e2230a2a04b35f64a59334ebaf5fde32029b24c411b