Malicious PDF — malware analysis report

Static analysis result for SHA-256 64b08115d36b8f60…

MALICIOUS

PDF

67.7 KB Created: 2021-02-11 18:26:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: fff68addfe7fdfbaee04fbf37aeac7c2 SHA-1: 644df05b8c70b7ba1f7581dd783b1724e5949e6b SHA-256: 64b08115d36b8f604abca633aeb7be27ae7d5ff825332cf4d38064b9a810d41f
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://seumenha.ru/wix?keyword=take+me+to+church+remix+download PDF link annotation
    • http://milky-rp.space/penthouse_magazine_free_downloadq2xct.pdfIn PDF document text
    • https://cdn.sqhk.co/xiroxozalal/rhjhfYf/oye_cuban_grill.pdfIn PDF document text
    • http://itchia.space/bubble_tea_popcorn_chickenzpyit.pdfIn PDF document text
    • https://cdn.sqhk.co/gudijupimeb/gmFqijV/road_to_legend_forex.pdfIn PDF document text
    • https://lotekine.weebly.com/uploads/1/3/1/3/131381428/dufabujizumibobeb.pdfIn PDF document text
    • https://cdn.sqhk.co/libuzewis/hcogdhb/pop_tart_cat_10_hours.pdfIn PDF document text
    • https://boxatikavizag.weebly.com/uploads/1/3/4/6/134680825/vadaxugobevim-mejadatosipifax-xurolad.pdfIn PDF document text
    • http://nakrutkavk.site/memunazubujini44a0.pdfIn PDF document text
    • https://cdn.sqhk.co/pofadugilip/hFULkjj/nurulid.pdfIn PDF document text
    • https://nudatisuwirok.weebly.com/uploads/1/3/1/3/131384101/9281975.pdfIn PDF document text
    • http://lamovingcompany.com/read_file_in_python_3.74utrw.pdfIn PDF document text
    • https://cdn.sqhk.co/wujakegu/jejJA5P/swing_manager_duties.pdfIn PDF document text
    • https://cdn.sqhk.co/fuludasowipu/gjdOJji/dr_driving_2_game_apk_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tatasuvuputo.epizy.com/chaitrada_chandrama_movie_video_song.pdfIn PDF document text
    • http://sunuwib.epizy.com/9595674329.pdfIn PDF document text
    • http://mosupixozijet.epizy.com/argon_18_gallium_pro_size_guide.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_off0000c718.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC718 5176 bytes
SHA-256: c7896dd9e80f1cf6bc2b955eb9d1ffe6d7d1577439f9d1cf7d9d60e241f83301
font_01_sfnt_off0000d89c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD89C 14796 bytes
SHA-256: 9df2dbecdc58e3722faab2e9656b10e3bc2c0762502db74a8c9c089a1694e0b0