Malicious PDF — malware analysis report

Static analysis result for SHA-256 9969b36110cc41fd…

MALICIOUS

PDF

70.0 KB Created: 2021-02-12 14:26:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: ee3b553172ec80f15f651f43f30dfd03 SHA-1: 094ead9f38188faf60b1107c56afff82e4602c25 SHA-256: 9969b36110cc41fdbbe16454446ce420b41289674f66730c53f28a5a672223ef
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://leonvi.ru/wix?keyword=piano+tiles+2+hack+mod+apk PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4409239/normal_6013592698231.pdfIn PDF document text
    • https://toripifisesu.weebly.com/uploads/1/3/4/3/134367164/12600d9d150e8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412164/normal_60134b391ab5b.pdfIn PDF document text
    • https://nipujari.weebly.com/uploads/1/3/1/3/131384055/0332bc1f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376599/normal_5ffdb494cf6a6.pdfIn PDF document text
    • https://vatovuturok.weebly.com/uploads/1/3/1/8/131856009/3662193.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443341/normal_601bfad1cedf6.pdfIn PDF document text
    • https://ripumoravoramex.weebly.com/uploads/1/3/1/6/131606135/xumofosufefigos_xadupapitix_budemu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422373/normal_5fdefb83cc208.pdfIn PDF document text
    • https://dawokopo.weebly.com/uploads/1/3/5/3/135314789/dujetidalit_gijogubozile.pdfIn PDF document text
    • https://nobaloledajasom.weebly.com/uploads/1/3/2/6/132681012/fopoko_giwidezaza_tifesosigu.pdfIn PDF document text
    • https://pefojefevofat.weebly.com/uploads/1/3/4/6/134659321/xazuxe_bukij.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407304/normal_60059fb0ecc22.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404965/normal_6022c45f075ea.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kesugoda.rf.gd/jelebarojonufezesadi.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_off0000d583.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD583 5416 bytes
SHA-256: 5bdee2fa7aabfff20887e8724d52df6b8df8a4391af3da46f1881a36a6c072f8
font_01_sfnt_off0000e7c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7C9 10356 bytes
SHA-256: e080240a833b1a9d5f1ba5c49c6f6b1a266af0dca3d3209fd389e6c0e58b0237