Malicious PDF — malware analysis report

Static analysis result for SHA-256 07e0e1f827acf991…

MALICIOUS

PDF

64.7 KB Created: 2021-02-23 14:10:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c29423fe80d19a97d8661259e5dcc5a6 SHA-1: 894a153252edb2d76439c0cc55de159e43e410b9 SHA-256: 07e0e1f827acf9913e14620950ff8b1d6bdc6791bac60c912ae8ffd2e9584c34
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://druttle.ru/wix?keyword=ngk+cross+reference+to+e3 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4451736/normal_602e677ae9447.pdfIn PDF document text
    • https://norusukesalija.weebly.com/uploads/1/3/4/3/134356509/cf82e5412.pdfIn PDF document text
    • https://sorefumegevori.weebly.com/uploads/1/3/1/8/131871670/9965387.pdfIn PDF document text
    • https://gibodogud.weebly.com/uploads/1/3/5/9/135994226/44d1a497a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448985/normal_6013f4f6ea46f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408987/normal_5ff617bc28cf7.pdfIn PDF document text
    • https://xikosenazegan.weebly.com/uploads/1/3/0/7/130739601/89334ba128e.pdfIn PDF document text
    • https://ronukava.weebly.com/uploads/1/3/4/8/134885886/wuvodopokabak.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379384/normal_6030701de3f32.pdfIn PDF document text
    • https://xogiwudib.weebly.com/uploads/1/3/4/7/134715522/zusokikat.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388178/normal_60293afac4b98.pdfIn PDF document text
    • https://girisuwudogepo.weebly.com/uploads/1/3/0/7/130776006/vegaxakusiwinasur.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://memajale.epizy.com/numedusirepel.pdfIn PDF document text
    • https://s3.amazonaws.com/xokebore/gotuzuzujedok.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_off0000c30b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC30B 5004 bytes
SHA-256: 9ed013807d18eba396b7f0816f9f9a4ecdd007ae1eddb8f149567e0412a0d3e3
font_01_sfnt_off0000d43c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD43C 9900 bytes
SHA-256: a881084c7e6c16f55d9d78e280a0f30809fd06aaa32f95d68fde9ab5154acc1d