Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2f10a26bfd59fb0…

MALICIOUS

PDF

68.2 KB Created: 2021-02-18 07:39:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 25d7f1e614495cb1e78166267c4c4317 SHA-1: 2ab356386889f9067160fc15cc6f976e6717bfb4 SHA-256: e2f10a26bfd59fb08d123ebf85d8ef89304206c54f75bd3ccbf0bd005e251e4a
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/wix?keyword=battle+islands+cheats+android PDF link annotation
    • https://funoridarudaru.weebly.com/uploads/1/3/5/3/135304061/meberisixuwapedoz.pdfIn PDF document text
    • http://tesopinafap.22web.org/17913419201.pdfIn PDF document text
    • https://baboxubawuxi.weebly.com/uploads/1/3/4/6/134666135/1681142.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391925/normal_5ff5d2317ca50.pdfIn PDF document text
    • https://mimasalidapu.weebly.com/uploads/1/3/4/4/134466186/dfb3086.pdfIn PDF document text
    • https://cdn.sqhk.co/lakuxezaj/hdhcXcF/prudential_bike_ride_2019_tracking.pdfIn PDF document text
    • https://cdn.sqhk.co/mofijovelu/3iaMOdF/streamlabs_merch_store_not_working.pdfIn PDF document text
    • https://javubabajekav.weebly.com/uploads/1/3/5/9/135957287/1cef20187d9cc2b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371786/normal_5ffd57ce548b5.pdfIn PDF document text
    • https://jitebogegamoma.weebly.com/uploads/1/3/4/7/134761197/jiliverinowabulutal.pdfIn PDF document text
    • http://vopibuxipem.22web.org/admission_form_for_nursery_class.pdfIn PDF document text
    • https://lubikumak.weebly.com/uploads/1/3/1/4/131453733/691965.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sezifusina.epizy.com/xopeposune.pdfIn PDF document text
    • http://nuwumexuxesi.epizy.com/88149442918.pdfIn PDF document text
    • http://zivakafipudejiw.epizy.com/ark_survival_evolved_guide_2019.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_off0000d03a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD03A 5076 bytes
SHA-256: c16838cefc3cc1627e5537906eea3f81576454b4064c94c46e5def9279b3cdba
font_01_sfnt_off0000e16f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE16F 10136 bytes
SHA-256: 40639bc24a856f2ad75ac307b7beb1358d586c2eb0c6d567023f3e210ddcebb1