Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2f1a97a8b9d899d…

MALICIOUS

PDF

69.9 KB Created: 2021-02-14 05:59:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a8eec7c0ccee3923ee016287e9db343a SHA-1: 488c6052138c19c66ba3a30aba43d890f0de500a SHA-256: a2f1a97a8b9d899d53435c665f5310194b51ce452985d24910aa85e52c24fe65
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://baarspo.ru/wix?keyword=las+venturas+map PDF link annotation
    • http://copalofa.site/rexulatajetofewunxum.pdfIn PDF document text
    • https://jodejivosarixu.weebly.com/uploads/1/3/4/3/134314211/6749153.pdfIn PDF document text
    • http://digitaltoolsfor.xyz/57764871781a91gh.pdfIn PDF document text
    • http://sarhello.online/sifuterarnr2a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453909/normal_601dd45851c5e.pdfIn PDF document text
    • https://venolebibu.weebly.com/uploads/1/3/5/3/135348563/zuvepewafogux.pdfIn PDF document text
    • http://hurricane1.space/lepewutizitalofinidejagoxzr6bp.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478683/normal_5fc945ae74eea.pdfIn PDF document text
    • https://xesisawizes.weebly.com/uploads/1/3/1/6/131606125/venujizeki_dimapatuxafogug_vorojat.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402933/normal_6015797e66a44.pdfIn PDF document text
    • https://vogoworelo.weebly.com/uploads/1/3/4/2/134266182/rejigapuxovevu-kufuvevetajaboz-xolubulejadu-nuludas.pdfIn PDF document text
    • http://sunshop.pro/95192796855z289w.pdfIn PDF document text
    • https://fovubimosifiwu.weebly.com/uploads/1/3/4/3/134324820/ludagi.pdfIn PDF document text
    • https://vuzigalami.weebly.com/uploads/1/3/5/9/135960382/ramevonizogazad.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_off0000d69e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD69E 4936 bytes
SHA-256: 78f15a05d1a0b25adf5a5c82266aec121f15af1849c1c92751a74ec0097478ee
font_01_sfnt_off0000e757.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE757 11052 bytes
SHA-256: 6572fd0ac9ba7ab5b29e11138f0a78f2f31f4e31e291844e30652ded180e15f7