Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9a6992d9212b3f3…

MALICIOUS

PDF

70.5 KB Created: 2021-02-24 21:38:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 20952128a30bf3b5c12dde2039ff3d0f SHA-1: 3b5f782915e55beac4a390f3bf3e85492be18f23 SHA-256: c9a6992d9212b3f3e931bd27dff52961561f38e4cf0505f07f0cf43804d1eb2e
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://druttle.ru/wix?keyword=worship+quotes+bethel PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368964/normal_601c6a6bebdbe.pdfIn PDF document text
    • https://xafukulirodut.weebly.com/uploads/1/3/1/3/131379356/fonojiwurenakisodeni.pdfIn PDF document text
    • https://cdn.sqhk.co/baxorurifina/NljhyP7/24376005458.pdfIn PDF document text
    • http://vijexibat.mywebcommunity.org/44258924584.pdfIn PDF document text
    • https://cdn.sqhk.co/rifebonapesi/7icjeXV/spaceflex_rocket_company.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366389/normal_6009550600f52.pdfIn PDF document text
    • http://davupopebuwiser.sportsontheweb.net/11281313220.pdfIn PDF document text
    • http://komaxinatobofe.medianewsonline.com/shadowrun_weapons_guide.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/takebemanijewok/zaxowubokomuvuzedij.pdfIn PDF document text
    • http://gulavutimomoxu.rf.gd/dadij.pdfIn PDF document text
    • http://ziwivazud.onlinewebshop.net/dilak.pdfIn PDF document text
    • http://nivufebolira.epizy.com/how_to_unlock_full_minecraft_windows_10_edition_for_free.pdfIn PDF document text
    • https://s3.amazonaws.com/fifomi/ace_screen_stream_pro_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/lumixi/bacterial_transformation_lab_report_pglo.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_off0000da0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA0A 4976 bytes
SHA-256: 761eea5341a4a6e2b58bcf6d803b00d711009da9b4c41ae6c5dbcbf77940a62e
font_01_sfnt_off0000eafe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAFE 10128 bytes
SHA-256: f7bf5010861e541b9636ddf1599226ef1a5a8ab809d8db5826861f05580dc0da