Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fe374f1d8d2b65c…

MALICIOUS

PDF

65.7 KB Created: 2021-02-13 09:39:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 3d356c6d8ba8a0eabce6635fc00aa9f5 SHA-1: 110f7f9b9fa47804885c3755c8842a85f52a4114 SHA-256: 4fe374f1d8d2b65cc713e68f5bada0871fba9c0c46b04feab6b139eaff833400
134 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 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/wix?keyword=daeng+gi+meo+ri+ki+gold+premium+conditioner PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4480745/normal_5fd2d85094aa0.pdfIn PDF document text
    • https://cdn.sqhk.co/zowonefaso/ghQihij/49000576619.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416811/normal_5feeb05bd780c.pdfIn PDF document text
    • http://fb-ig-violation.com/87333842691ybk1g.pdfIn PDF document text
    • https://pisesiwez.weebly.com/uploads/1/3/1/4/131453260/jiwadisovowuxuk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483586/normal_5fef78eda8fbe.pdfIn PDF document text
    • https://funefazadoma.weebly.com/uploads/1/3/4/6/134648765/2ca7958a91136e3.pdfIn PDF document text
    • https://kowuzuworos.weebly.com/uploads/1/3/2/6/132682574/c518ab62bb.pdfIn PDF document text
    • http://winfreeiphone.xyz/britney_spears_american_dream_hackd1kva.pdfIn PDF document text
    • https://cdn.sqhk.co/xakelafu/Ohdzer9/jurassic_world_pixel_dinosaurs.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450151/normal_5fe35054988aa.pdfIn PDF document text
    • http://uscarinsurance.info/netgear_dg834g_instruction_manualb25s5.pdfIn PDF document text
    • https://liroxinumapidaz.weebly.com/uploads/1/3/5/3/135348088/155723.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/lixasifasi/puxujegisuge.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_off0000c389.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC389 5276 bytes
SHA-256: 452e0f9df3cd6c8c074e34e30d79acb3e7b8b040db6576242243a5c09558f277
font_01_sfnt_off0000d571.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD571 10676 bytes
SHA-256: a61e295816af99ddf3297f11e64a8d00af1cb25a6f6aebb9c5a84a08f2ee05e1