Malicious PDF — malware analysis report

Static analysis result for SHA-256 e50001109ec25f8e…

MALICIOUS

PDF

69.7 KB Created: 2021-02-28 15:41:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d655a715332f7a2a0bcfd564e9c22965 SHA-1: fec4e066ccbf17f3e8aadcbb314c9ca5b0891274 SHA-256: e50001109ec25f8eedcef983d150cc5868ab382f6a044ac601d687bdbe4945e2
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://mezovuduw.ru/wix?keyword=latin+via+ovid+a+first+course+second+edition+pdf PDF link annotation
    • https://cdn.sqhk.co/dodazija/r7Cjgc4/tubodizuxejoz.pdfIn PDF document text
    • https://tovamegudisolos.weebly.com/uploads/1/3/1/4/131411857/diped.pdfIn PDF document text
    • https://cdn.sqhk.co/fesakesovoka/bFhd8tV/top_trending_music_videos_this_week.pdfIn PDF document text
    • https://vevavosabiwebe.weebly.com/uploads/1/3/4/3/134349804/4909697.pdfIn PDF document text
    • https://xatikofaf.weebly.com/uploads/1/3/0/8/130814669/8963783.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481820/normal_5ff29410653cb.pdfIn PDF document text
    • http://fasad-dom.site/criminalistics_an_introduction_to_forensic_science_13th_edition738wa.pdfIn PDF document text
    • http://static-get.top/binder_spine_template_wordnjwt3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416675/normal_601452edf2663.pdfIn PDF document text
    • https://cdn.sqhk.co/letareximo/yjfuwha/karen_meme_let_me_speak_to_the_manager.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421611/normal_60337ac422c7b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409393/normal_5fdb99a2cdf71.pdfIn PDF document text
    • https://sojuvamufivuleb.weebly.com/uploads/1/3/0/8/130874470/7900683.pdfIn PDF document text
    • https://bemazinava.weebly.com/uploads/1/3/4/8/134890863/1b4be69b.pdfIn PDF document text
    • https://mirurilusenut.weebly.com/uploads/1/3/4/6/134631679/d6dd7e67ac32.pdfIn PDF document text
    • https://dojufewuwi.weebly.com/uploads/1/3/4/2/134235401/gawonufo_putodenuj_piralusu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501484/normal_6003fce936e75.pdfIn PDF document text
    • http://mugedly.xyz/468974410w07ej.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369796/normal_602583ba7f3dc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418984/normal_603455e893ac9.pdfIn PDF document text
    • https://cdn.sqhk.co/fuxilumevo/jDm2JLP/vojafulifeb.pdfIn PDF document text
    • https://definifizuzum.weebly.com/uploads/1/3/4/7/134759181/300509.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d4e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4E2 5120 bytes
SHA-256: b274022d926458e41cdc546bf9a7dd398c2519db267ff037e0e7c1a3cc7042c9
font_01_sfnt_off0000e66e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE66E 10144 bytes
SHA-256: 86e6a307e1fef492c1181d268230739dad231c842233e50aec4008c4f638e565

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