Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cdf8504c40efdc1…

MALICIOUS

PDF

70.7 KB Created: 2021-03-02 20:55:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 3cd62084cf0300b90fcad8ee7b8c3fb1 SHA-1: a0d07b24525977a990f051ac5fcb34cfc40fe79d SHA-256: 2cdf8504c40efdc19bbb5ead2841c59397cfa9c89b35cfda40c1f5c72ae78b98
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://lozipotod.ru/wix?keyword=ashran+treasure+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4416131/normal_602ac1efa1c27.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473903/normal_60035f5792669.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425209/normal_5fd3b2649f5c1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407788/normal_5fd84c1276e2b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402246/normal_5ffc485ad586c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467287/normal_5fd3220dcb296.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485321/normal_5ffa33003e604.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4503987/normal_5feb9c393b2ae.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/tezude/84164654576.pdfIn PDF document text
    • https://s3.amazonaws.com/levumoduf/dexiwowujavogimogepiguxaj.pdfIn PDF document text
    • http://xawatutosewo.epizy.com/ap_grama_sachivalayam_key.pdfIn PDF document text
    • http://sumabaxesopev.rf.gd/businessman_tamil_songs_free_starmusiq.pdfIn PDF document text
    • https://s3.amazonaws.com/sizabo/mekun.pdfIn PDF document text
    • http://zewuref.rf.gd/lomojokigolawefitodif.pdfIn PDF document text
    • http://nerofote.rf.gd/43296974065.pdfIn PDF document text
    • http://repofifimi.epizy.com/pitodojidisomelu.pdfIn PDF document text
    • http://bewegemoketofa.rf.gd/67927934470.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cc7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC7E 4816 bytes
SHA-256: 8550beb973b9c3b6a4a649795a00c78f85667182334628ceb19b374de3eb3ec3
font_01_sfnt_off0000dcc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCC2 10356 bytes
SHA-256: 0f7a2deff91460068bc5feae929e6bdbdcd1495a103b542d2da27aed5cc3761a
font_02_sfnt_off0000ffe8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFE8 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f