Malicious PDF — malware analysis report

Static analysis result for SHA-256 04994bf6f3e25a6c…

MALICIOUS

PDF

68.4 KB Created: 2021-02-20 14:33:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 5dce6c3dfa89c56cebdf585611e79951 SHA-1: 68930bd400b4adb9c30d1640663b5e9f44fed69a SHA-256: 04994bf6f3e25a6c13a4a068bcd4f5464d9ea76c81761ea8147f93d65813e5cf
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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://jottigo.ru/wb?keyword=yard%20machine%20ride%20on%20mower%20starter%20motor PDF link annotation
    • https://zanixikowupu.weebly.com/uploads/1/3/1/4/131437740/muripefipal.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501501/normal_602170c1ba18c.pdfIn PDF document text
    • http://smartline58.ru/tanagilatebixadbzlx.pdfIn PDF document text
    • https://badakawage.weebly.com/uploads/1/3/0/9/130969543/9394329.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413462/normal_5ff207e76eb0b.pdfIn PDF document text
    • http://gifofebitatine.iblogger.org/uos_ba_private_challan_form.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498678/normal_5fdde9c6a32f0.pdfIn PDF document text
    • http://springital.fun/curso_aromaterapias96mx.pdfIn PDF document text
    • http://ketosimple.online/tree_of_life_utah_desertwboma.pdfIn PDF document text
    • http://kernig.online/bloons_td_6_mod_apk_pcmwvuo.pdfIn PDF document text
    • https://cdn.sqhk.co/degavorofala/jbjjicQ/kusuriv.pdfIn PDF document text
    • https://nevofegef.weebly.com/uploads/1/3/4/8/134851200/5345760.pdfIn PDF document text
    • https://cdn.sqhk.co/moxibusas/KStgjV6/ice_cream_maker_recipes.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zadobimad.epizy.com/information_about_yourself_in_cv.pdfIn PDF document text
    • http://tokavasetalan.epizy.com/fly_fishing_guides_portland_oregon.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_off0000cffb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFFB 5200 bytes
SHA-256: b20e35bea2d182b704cec85a10b91c23bbdf6f4968ae9728052a833829b8f89a
font_01_sfnt_off0000e195.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE195 10272 bytes
SHA-256: 9a90ed7e0e9e9b0224d9473f9aa0c1400fd5ad1fc9aafdae590bb1699249ca55