Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e2f35ce27c7e629…

MALICIOUS

PDF

73.0 KB Created: 2021-02-26 12:55:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: d0efb1e06b219d33b5e2face950f8771 SHA-1: 301068168cba98b41b6f0d1d83429e498c7b7b96 SHA-256: 6e2f35ce27c7e6299faa09b931cfc26024949564b09de6dad596f77c2591bf38
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://bologen.ru/aws?utm_term=accu-chek+aviva+plus+strips PDF link annotation
    • https://cdn.sqhk.co/xeloxilava/kjbhhsP/healthy_icing_recipe_for_carrot_cake.pdfIn PDF document text
    • http://xuxetosufuzo.getenjoyment.net/falipobazofudutozoseba.pdfIn PDF document text
    • https://turonobofudub.weebly.com/uploads/1/3/4/4/134463989/46469a741999e.pdfIn PDF document text
    • https://tebifenan.weebly.com/uploads/1/3/4/6/134675993/pupal.pdfIn PDF document text
    • https://podinelejuwe.weebly.com/uploads/1/3/2/7/132710627/3086029.pdfIn PDF document text
    • https://cdn.sqhk.co/fuwuwoki/D7n8Zha/hide_and_seek_map_codes_rocket_league.pdfIn PDF document text
    • http://teleporttur.ru/cambridge_primary_progression_test_pe3tdo.pdfIn PDF document text
    • https://kuribigewisowe.weebly.com/uploads/1/3/4/6/134688213/makisikuwor_nuperixe.pdfIn PDF document text
    • https://faxomozux.weebly.com/uploads/1/3/0/7/130775398/6466db30f8231.pdfIn PDF document text
    • https://cdn.sqhk.co/savageven/kjfckjc/19878812779.pdfIn PDF document text
    • https://fepapidatimupiv.weebly.com/uploads/1/3/1/4/131437812/puvoj_fejatog_sufokoroboma_xixakewamalag.pdfIn PDF document text
    • https://cdn.sqhk.co/jagugide/bgcgiii/zokevunegu.pdfIn PDF document text
    • http://filanion.online/64234104098pfzpc.pdfIn PDF document text
    • http://galoomer.online/mepidebipoditajowisutaxor667n6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vimixof.onlinewebshop.net/18133914709.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_off0000dc39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC39 5168 bytes
SHA-256: bc06920f7b2cb3c36eea3fceb69c2d1831f6a8c9669badaab6c2d35882c6cbf6
font_01_sfnt_off0000edd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDD3 11936 bytes
SHA-256: 9c7c24cd880c12cc7ef8f733f2ef9b66c5c401f39b79a98e3ea5e08308c2a259