Malicious PDF — malware analysis report

Static analysis result for SHA-256 76324f3c4e2b7ac1…

MALICIOUS

PDF

71.1 KB Created: 2021-03-01 16:04:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a351f0a8258e19646ca342f5c9f31820 SHA-1: 52c2085e0933903a53692202a97ee166ba5e3110 SHA-256: 76324f3c4e2b7ac1bcb286be8c2fd419ee9d2cc05b2e2ddb96a63ab3f8784e3f
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/award?keyword=what+is+black+currant+ice+cream+made+of PDF link annotation
    • http://rawenspant.online/nudumibank1wci.pdfIn PDF document text
    • http://bionatur.space/tajweed_quran_in_urduogta9.pdfIn PDF document text
    • http://fofiwafajelerax.sportsontheweb.net/free_romantic_book_download.pdfIn PDF document text
    • http://thestablestl.com/dulomazanixsx9i0.pdfIn PDF document text
    • https://cdn.sqhk.co/fapolokid/i1aijih/41105421696.pdfIn PDF document text
    • http://xevusezes.medianewsonline.com/nimevekavarateguta.pdfIn PDF document text
    • http://moshon.space/31832834535wlvkg.pdfIn PDF document text
    • https://pejejuwefosewa.weebly.com/uploads/1/3/4/0/134040570/3034651.pdfIn PDF document text
    • http://usechambre.xyz/what_is_the_freudian_dream_theoryuo8ng.pdfIn PDF document text
    • https://jowetirepenu.weebly.com/uploads/1/3/1/3/131383619/d8a688.pdfIn PDF document text
    • https://cdn.sqhk.co/wepugozotap/Ye9hfie/88106722200.pdfIn PDF document text
    • http://wejowadizabudex.mypressonline.com/87564226152.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zimopup.myartsonline.com/how_to_install_logitech_extreme_3d_pro_joystick.pdfIn PDF document text
    • http://jumepenitujox.atwebpages.com/sears_craftsman_garage_door_opener_battery_backup.pdfIn PDF document text
    • http://zogosugo.onlinewebshop.net/5e_phb_spells.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_off0000d92a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD92A 5476 bytes
SHA-256: cbe2aa78d90b6ad8b69d48eb572b5981c625c8493c54e65edb941432ceccd3e5
font_01_sfnt_off0000ebae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBAE 10464 bytes
SHA-256: df95b3449aa62cfba4921e9fda60b291cb3b0157325aeaa2b5085dd6d16f9375