Malicious PDF — malware analysis report

Static analysis result for SHA-256 dee6583f7fd04601…

MALICIOUS

PDF

67.2 KB Created: 2021-02-25 12:41:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 6f369d67b379f7ea8f9a951e9416d4a5 SHA-1: 95c8f98579a343a0a48c6924421fd06aa3b533de SHA-256: dee6583f7fd0460123bb92285e513537ef69f4152a68f3e0beca3ae084c2336d
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://seumenha.ru/wix?keyword=algebra+2+common+core+textbook PDF link annotation
    • https://xoverepidagagit.weebly.com/uploads/1/3/4/4/134469055/zosibabanumo.pdfIn PDF document text
    • https://cdn.sqhk.co/zirimikuj/Rwp2aje/easy_wallet_apple_watch_sync.pdfIn PDF document text
    • https://kufidadifijerid.weebly.com/uploads/1/3/1/4/131407945/6c6ec0d21c83ee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450730/normal_6026d4a2b040b.pdfIn PDF document text
    • https://fubuzupa.weebly.com/uploads/1/3/5/3/135324320/mesumawidege.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393508/normal_5fe33f3b6842c.pdfIn PDF document text
    • https://zejinimab.weebly.com/uploads/1/3/1/8/131856072/vuparikewax_rewedefewejilo_kufaj_lugemodonogo.pdfIn PDF document text
    • https://cdn.sqhk.co/fesoxuleri/ggihgjj/best_psx_emulator_for_windows_8.pdfIn PDF document text
    • https://cdn.sqhk.co/vitimosugu/RjihbQO/54851092839.pdfIn PDF document text
    • https://wuxurabe.weebly.com/uploads/1/3/4/6/134608123/5788751.pdfIn PDF document text
    • https://kipejuxi.weebly.com/uploads/1/3/2/6/132682137/bavapodu_bubaverelumev.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380887/normal_5ff621c6ce607.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407085/normal_603168bae6e91.pdfIn PDF document text
    • http://rirelavemug.iblogger.org/free_brochure_template_s_for_microsoft_word.pdfIn PDF document text
    • https://deminoki.weebly.com/uploads/1/3/5/3/135310913/e0e721a24da.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vodoxaxadax.rf.gd/p_g_online_reasoning_test_answers.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c788.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC788 5336 bytes
SHA-256: 419d86c5608e1490447cbb2070c2de20e52d09815bc62de786e7e40f6b8ddc36
font_01_sfnt_off0000d9a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9A1 10676 bytes
SHA-256: 02dab453034e01b056eea4a52acc2b4ea4c04f7e497f9155c2e60e5a032f6450

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