Malicious PDF — malware analysis report

Static analysis result for SHA-256 e642a1bdf807c9af…

MALICIOUS

PDF

72.6 KB Created: 2021-02-05 01:42:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 5deb47d62db31461ad99fd87f88274ed SHA-1: d1daaaac4e63f85d0d4c0d6a43fc29aa79947a92 SHA-256: e642a1bdf807c9af8673a52108c05639f0843bccc6ac661660793cca2e4b6977
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/wb?keyword=unblock%20youku%20chrome%20extension PDF link annotation
    • http://lg-copyright.com/51589115761c59di.pdfIn PDF document text
    • http://seedcraft.online/39953435381rx10y.pdfIn PDF document text
    • http://itravelgr.com/evh_5150_iii_lbx_ii_manualxytfm.pdfIn PDF document text
    • https://cdn.sqhk.co/jawuraxexije/iQjgZQg/booking_revolution_mod_apk_home.pdfIn PDF document text
    • http://lavkavkusa.store/8709401222r3llm.pdfIn PDF document text
    • http://meetsoda.club/86036892736978jf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417313/normal_600d12743b819.pdfIn PDF document text
    • http://momentshop.space/photoshop_tutorials_skin_retouchingq68uf.pdfIn PDF document text
    • http://feelslike35.com/82844717112trbix.pdfIn PDF document text
    • http://lalat.space/266753078898e1en.pdfIn PDF document text
    • https://cdn.sqhk.co/gabixeme/rgiharT/gezaxexuk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486969/normal_5feefc1d52662.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/ruzumeb/alien_shooter_apk_mod_android.pdfIn PDF document text
    • https://s3.amazonaws.com/vovuzize/bituthene_8000_data_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/zeworibuzoza/91493347916.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_off0000dfab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFAB 5196 bytes
SHA-256: 5cb94795135bba0777f5660a3341fcbc9bd56b023fe5d4d6db9b14909c48dafa
font_01_sfnt_off0000f13d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF13D 10804 bytes
SHA-256: 6a5a30fbc0041c5209b9ec32ecfa1fc6df134a61dd78525dace1010dcf626cb7