Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e610264831e0dd2…

MALICIOUS

PDF

69.8 KB Created: 2021-02-18 04:50:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: d7dc032c9910578a6a46a8c7d13c8950 SHA-1: 0491e24f4d107c0cfe7a4af6a94bb8b66b77fa13 SHA-256: 7e610264831e0dd24fca77bcfd0c5bf356c2aa83b4844ee7d04a6f0e0afa29c2
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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=coinbox+hero+unblocked PDF link annotation
    • http://visiwetivopewe.iblogger.org/usa_hockey_rink_template.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477892/normal_601f72eff1cf8.pdfIn PDF document text
    • https://cdn.sqhk.co/sakiforivona/ibEhiha/33240975926.pdfIn PDF document text
    • https://mogorabijeruli.weebly.com/uploads/1/3/1/3/131380728/vazapovefuxexu_purapulurore_vatibogolu.pdfIn PDF document text
    • https://cdn.sqhk.co/sejarepezibo/jhfjf8M/pudopukisevotagud.pdfIn PDF document text
    • https://cdn.sqhk.co/jogepirar/jcE6oSm/xizukipaseva.pdfIn PDF document text
    • http://thesimplycompleteseries.com/soal_dan_jawaban_praktikum_akuntansi_lembaga_instansi_pemerintah_kelas_12yi61r.pdfIn PDF document text
    • https://vepemetamat.weebly.com/uploads/1/3/4/3/134354227/d9e3617a90.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378621/normal_5fcea5d5d460d.pdfIn PDF document text
    • https://cdn.sqhk.co/sozaxejiv/QihHGxY/gomig.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393489/normal_600128153c320.pdfIn PDF document text
    • https://cdn.sqhk.co/viforoge/PghgjP5/fujisiredanemovixediveku.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414341/normal_5ff40b38c6036.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464530/normal_5fc9cc630b1d3.pdfIn PDF document text
    • https://kaperimivegorew.weebly.com/uploads/1/3/4/3/134371305/3ca933c.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
    • 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_off0000c8bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8BD 4736 bytes
SHA-256: b30bbb6b0d7df60a6ab6309a9797e044ffff4599fcb38bc36c666b709d05ce49
font_01_sfnt_off0000d8b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8B9 10492 bytes
SHA-256: b61692bd23a46d5275cc690c0ea651fe1b1b717cbbd5b5737ff5e5f003c5aa8d
font_02_sfnt_off0000fc8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC8F 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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