Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b34867527b2121d…

MALICIOUS

PDF

67.1 KB Created: 2021-03-02 18:14:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: cbad3e9313932618aa994a90401b3e90 SHA-1: 580710cc32fbc92f4090c630ede491878ebe506c SHA-256: 5b34867527b2121dfbfb857de7afc754d4442546ef837db108e5ebd26cf9461d
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://soxebez.ru/award?keyword=women%2527s+weight+loss+workout+plan+pdf PDF link annotation
    • https://legobunisazej.weebly.com/uploads/1/3/4/5/134501617/25371.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365646/normal_5ff1b368bf17a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393779/normal_5fe1f0e867c97.pdfIn PDF document text
    • http://workbykoder.xyz/barbarian_weapon_master_nwn4x495.pdfIn PDF document text
    • http://rozujed.sportsontheweb.net/how_much_is_a_2019_peterbilt_389.pdfIn PDF document text
    • http://lutafem.getenjoyment.net/how_long_are_walmart_black_friday_deals.pdfIn PDF document text
    • http://puwexakibo.iblogger.org/burn_iso_to_usb_with_android.pdfIn PDF document text
    • https://fumirufax.weebly.com/uploads/1/3/1/8/131856188/busuvonef_rukokitote.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369322/normal_603e36d9860d0.pdfIn PDF document text
    • http://numulul.mygamesonline.org/74030115364.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366407/normal_5ffbd0cf3d66b.pdfIn PDF document text
    • https://toruganaduloxo.weebly.com/uploads/1/3/5/3/135347606/rewabiz_mizuganofofuw_tirigimolazax.pdfIn PDF document text
    • http://chelobaka.space/teguwomeziniso5hplz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449602/normal_5fcf2771a5cdb.pdfIn PDF document text
    • http://talezoruvaje.iblogger.org/best_4k_movie_app_for_android.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420907/normal_60106ca2110d8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nejarisiwudu.atwebpages.com/dan_brown_inferno_review_book.pdfIn PDF document text
    • http://fifusudevop.rf.gd/albertus_typeface_free.pdfIn PDF document text
    • http://bagineju.epizy.com/what_is_mentor_coaching_icf.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_off0000c984.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC984 5656 bytes
SHA-256: f49c9134e77fdea252554477d89b50872576cbba668588235b5b29ff26bce142
font_01_sfnt_off0000dcba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCBA 10096 bytes
SHA-256: 39f74a096d4f4330f34115b0b3d6c53c54b4f4d908879e7a6f4304c42d65b44e