Malicious PDF — malware analysis report

Static analysis result for SHA-256 8635e65d76c5108c…

MALICIOUS

PDF

73.6 KB Created: 2021-02-24 21:10:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 46dac42d98159c5b9f27b841b529b368 SHA-1: 37e49dba9173c61d1bc7b100b6e9db598f82c807 SHA-256: 8635e65d76c5108c777d61490368d3895004e80bd0d3a578dd9a3f080d63d00d
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://jacksth.ru/wix?keyword=persona+4+quest+8 PDF link annotation
    • https://cdn.sqhk.co/dobulefipuji/ohbCbif/75770565057.pdfIn PDF document text
    • http://zaralutodunuwa.66ghz.com/la_campanella_viola_sheet_music.pdfIn PDF document text
    • https://cdn.sqhk.co/gejikofoxaf/ibBxZhj/school_technology_jobs_nj.pdfIn PDF document text
    • https://cdn.sqhk.co/zapimafe/Nicggji/tegulemapujaxixetutofo.pdfIn PDF document text
    • http://woxuruko.medianewsonline.com/viruko.pdfIn PDF document text
    • http://trokot-tonirovka.online/terro_ant_killer_liquid_ant_baits_instructionsyti2b.pdfIn PDF document text
    • https://cdn.sqhk.co/verexumifo/eCdNjfX/smartblog_helps_com_diskdigger_photo_recovery_app_download.pdfIn PDF document text
    • http://pixxel.life/gasulikudobowadalfpu9.pdfIn PDF document text
    • https://cdn.sqhk.co/rubupidorinu/e6CXnjf/dunupafiku.pdfIn PDF document text
    • http://pumba.fun/6646510502fab9y.pdfIn PDF document text
    • http://wonder-ita.fun/5183523932316tk3.pdfIn PDF document text
    • http://auth02mobility.com/libertango_sheet_music_pianoko3vw.pdfIn PDF document text
    • https://cdn.sqhk.co/leruwexikud/haheihf/rasilix.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wivonubezur.epizy.com/8316643770.pdfIn PDF document text
    • http://kepagewav.atwebpages.com/guxexitesekelakekewazomej.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_off0000e55a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE55A 5056 bytes
SHA-256: d13fe95868ffd03ef797c3ad94fc5909c8c665d99648ac17e1e39504d2b321e0
font_01_sfnt_off0000f6a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6A5 10424 bytes
SHA-256: 14f7f0610a4da8d7d8c23e55c46e03181732264e5902d93f673fa35dc02c690c