Malicious PDF — malware analysis report

Static analysis result for SHA-256 5da651cd3e3e1c6e…

MALICIOUS

PDF

71.9 KB Created: 2021-02-20 11:14:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b1dd316f4a9d85133a6ab38fbc0f18eb SHA-1: 23a3ae5258ad6edd69561c0e8552fedd2790114d SHA-256: 5da651cd3e3e1c6e64313f48dffa5bdd2dd540a64a052e6b5cc64ea25c2890b4
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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=dean+warrior+guide+tera PDF link annotation
    • http://tivulaxovena.22web.org/passport_size_photo_template_online.pdfIn PDF document text
    • http://naxenavuk.22web.org/8536914507.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384633/normal_601af87aab21f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377697/normal_5fc659bb93bd6.pdfIn PDF document text
    • https://jokesekarizav.weebly.com/uploads/1/3/1/4/131407558/a071963db0cd403.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393521/normal_5fe5facd3e7cb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404133/normal_601617aca7172.pdfIn PDF document text
    • https://poxejoretojav.weebly.com/uploads/1/3/4/7/134740271/korofufek_gimasuv.pdfIn PDF document text
    • https://kakowafalajoji.weebly.com/uploads/1/3/4/4/134455686/satadojesapavukam.pdfIn PDF document text
    • https://kunubixofatefif.weebly.com/uploads/1/3/4/0/134096788/dugipewakese.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484815/normal_600f56d885e22.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450876/normal_601a1bb921855.pdfIn PDF document text
    • https://bivolureru.weebly.com/uploads/1/3/4/5/134583024/lojovido_sokaxegux_lavugivasu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460694/normal_602ad8308a630.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tosopipates.epizy.com/arsenal_match_report_guardian.pdfIn PDF document text
    • http://solujenujaki.epizy.com/45563655620.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_off0000dddb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDDB 4872 bytes
SHA-256: 1dc090d69a6aaa9ca4789aef70a95bc41f7b0ec86856c99900886d8fa8692229
font_01_sfnt_off0000ee95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE95 10656 bytes
SHA-256: 06f5b99297726a368b9d10c33054d8f32b2d6ee98def5749bc9f795d1b2274a6

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