Malicious PDF — malware analysis report

Static analysis result for SHA-256 c379dcdc0151530f…

MALICIOUS

PDF

74.1 KB Created: 2021-02-19 21:51:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 9b94d68439de0d309f3d0879a5b96c5e SHA-1: c5543d2fca4089cf05598731211cc6f9661a9f72 SHA-256: c379dcdc0151530fc7e92209725ca652e5d02e6c0f4a5fad890fe740e0568a1f
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/123?utm_term=what+are+the+characteristics+of+a+good+father PDF link annotation
    • http://bedomukuruxe.22web.org/33931677770.pdfIn PDF document text
    • https://sekokuvujiziv.weebly.com/uploads/1/3/4/0/134096710/likojapawedaz_fonazoxejo_vawewez.pdfIn PDF document text
    • http://goodsun.space/free_robux_loto_20207rfud.pdfIn PDF document text
    • https://cdn.sqhk.co/letijefa/qQGgehf/jogo_crazy_zombie_6._0_super_heroes_hacked.pdfIn PDF document text
    • https://zexamedoguko.weebly.com/uploads/1/3/1/4/131454027/91c25c1a87d575.pdfIn PDF document text
    • https://besuweleterum.weebly.com/uploads/1/3/2/8/132814030/7523994.pdfIn PDF document text
    • http://contentmedialiteracy.com/calendario_bundesliga_2020se62g.pdfIn PDF document text
    • https://cdn.sqhk.co/kajipazuto/3hfrgiZ/sound_effects_library_free.pdfIn PDF document text
    • https://kafaxidaduxeb.weebly.com/uploads/1/3/1/4/131438036/bekutebon.pdfIn PDF document text
    • http://kikudesazogug.22web.org/oxford_discover_6_free.pdfIn PDF document text
    • http://boviriso.22web.org/whatsapp_plus_pro_apk_latest.pdfIn PDF document text
    • https://zizopozuwugova.weebly.com/uploads/1/3/0/7/130775786/fobopuxupebefumawu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bezepegu.epizy.com/7638374965.pdfIn PDF document text
    • http://vamovatalugoja.epizy.com/toyota_camry_2012_service_manual.pdfIn PDF document text
    • http://jetubomubiko.epizy.com/28416807250.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_off0000e650.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE650 5264 bytes
SHA-256: 46252fa24ca8b2ec6c3d8553f302be63c00ca1e4f51fcf32f215a0945776432c
font_01_sfnt_off0000f83c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF83C 10352 bytes
SHA-256: 771eb7cbbe3d70933a444899653d6022aba8b5ebf1c0ba57699eeaf1264b6422