Malicious PDF — malware analysis report

Static analysis result for SHA-256 b966dfe8f2a419c4…

MALICIOUS

PDF

72.4 KB Created: 2021-02-13 12:48:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7019248173cb2feb6e0f5c55cc037f08 SHA-1: 7bdb7552934aab93908147284b5a4aa6003714e3 SHA-256: b966dfe8f2a419c4716bb03006a8d2adf1d21c780fe9d977b3e6f3a1450aa50d
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://leonvi.ru/wix?keyword=command+and+conquer+rivals+cheats+deutsch PDF link annotation
    • http://usblighter24.site/machiavelli_the_discourses1mlq7.pdfIn PDF document text
    • https://nibawomufexax.weebly.com/uploads/1/3/4/3/134371272/dfab9c3852d23.pdfIn PDF document text
    • https://cdn.sqhk.co/werutojij/2bx8hbu/hint_for_zombie_shooter_2_games_free_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478148/normal_60100438e574b.pdfIn PDF document text
    • http://introdom.ru/indd_to_psd_converter_onlinetnvs8.pdfIn PDF document text
    • http://yourlivehelp.com/mebupogexemaz878qe.pdfIn PDF document text
    • https://xajowaluvuro.weebly.com/uploads/1/3/5/3/135303047/nafafabatapozadin.pdfIn PDF document text
    • http://starconflict-game.ru/xidilox2x6qz.pdfIn PDF document text
    • https://ziziwatir.weebly.com/uploads/1/3/4/7/134713039/tijolufuzaji_kitoleg_zawiwakifizag_lopatitu.pdfIn PDF document text
    • https://cdn.sqhk.co/relulapezele/ge8zH9N/color_snake_tattoo_cost.pdfIn PDF document text
    • https://diritirafimiwav.weebly.com/uploads/1/3/4/3/134376035/6136e.pdfIn PDF document text
    • https://gekafokolasiga.weebly.com/uploads/1/3/1/3/131384301/xidan.pdfIn PDF document text
    • http://mrt-64.ru/uri_to_bitmap_android_studiob0lgd.pdfIn PDF document text
    • https://suwesinorilofev.weebly.com/uploads/1/3/4/0/134096988/mifipezefefo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454286/normal_5fed99683b477.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000dff7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFF7 5268 bytes
SHA-256: 35f86581cc0a49589cf2f8699cfa7e91f1ffce5d1e2decf837d19933156936ef
font_01_sfnt_off0000f1ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1AD 10052 bytes
SHA-256: 93602cf5051247e229e4e3ad8fc04623cf2c534255fd2fd31bb8536e9a4a373d