Malicious PDF — malware analysis report

Static analysis result for SHA-256 6864767a61c6509f…

MALICIOUS

PDF

71.6 KB Created: 2021-02-15 17:39:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6836f057eb615af78535e65ef7e2c127 SHA-1: 605cfd76ed3ee9e86e34bcdbd2ec15e868b8c75c SHA-256: 6864767a61c6509f1f392f726204197692ed4a6e4486e212261e20c2c48970ac
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://maypoin.ru/wix?keyword=first+mile+warranty+contact+number PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4420910/normal_6018a299cc7a6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420604/normal_6024eeb799a8b.pdfIn PDF document text
    • https://cdn.sqhk.co/sekeniti/BIjgfgg/swordfish_attack_shark.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369911/normal_5fdf51cc7a461.pdfIn PDF document text
    • https://kopigipovivon.weebly.com/uploads/1/3/1/4/131484029/zugivese.pdfIn PDF document text
    • https://cdn.sqhk.co/perikowep/jiKhfgh/fininojafakexaketusikaweg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467274/normal_5fd9cec0b7cfa.pdfIn PDF document text
    • https://cdn.sqhk.co/mexovaru/sbjbvzR/bike_racing_3d_hack_version_apk_download.pdfIn PDF document text
    • https://nadaroxiwe.weebly.com/uploads/1/3/4/6/134688146/wabegusiporewiv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373983/normal_6029fdc38af34.pdfIn PDF document text
    • https://cdn.sqhk.co/gapekozuwa/un09Xgh/bavuni.pdfIn PDF document text
    • https://jufoximivovanad.weebly.com/uploads/1/3/4/0/134013024/lebolufamumepir.pdfIn PDF document text
    • https://binazinir.weebly.com/uploads/1/3/4/1/134108718/warogikoxawisaw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/woxorojero/fetomawevi.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_off0000dc9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC9D 5232 bytes
SHA-256: 2f96a0f95ab6d90707aaeabf519215f1e118c2ec1044d76756b92b7b1f27c87b
font_01_sfnt_off0000ee69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE69 10252 bytes
SHA-256: 6e76529cfa68ceb4fa22d8501cdd55a958a3102195a491136e30162914c13800