Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c993e5ed9006841…

MALICIOUS

PDF

68.4 KB Created: 2020-12-25 20:55:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-07-02
MD5: 98b0522e27a30e57e757d550a8cf159a SHA-1: 45fc3f9e71a3731edf01e4f0bad872229efdd76c SHA-256: 7c993e5ed9006841b344b2ebcda28d0272cac63c7a87d936cd95a7c6267c9aa9
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://traffset.ru/wb?keyword=stupid%20zombies%20game%20download%20android%201 PDF link annotation
    • https://lulegosepo.weebly.com/uploads/1/3/0/9/130969478/3284765.pdfIn PDF document text
    • https://cdn.sqhk.co/duxajoje/hjjijbR/national_geographic_shop_clothing.pdfIn PDF document text
    • https://vojizozovogimum.weebly.com/uploads/1/3/0/7/130740342/kebasekedon-naxaborotagox-nobewokizebe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425230/normal_5fcc6dc9af1ad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4394082/normal_5fbc8d207171f.pdfIn PDF document text
    • https://filavemegu.weebly.com/uploads/1/3/4/8/134883773/lolirar-folojepabuzi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443824/normal_5fcaae192dd60.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370989/normal_5f9235c281226.pdfIn PDF document text
    • https://kujivapepomo.weebly.com/uploads/1/3/4/5/134591142/jisifezez.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450634/normal_5fd2d0d2e9428.pdfIn PDF document text
    • https://cdn.sqhk.co/banifiga/hdiaqhC/bubble_bubbles_game_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368506/normal_5f87c329ce83e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4428335/normal_5fcb60748e305.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3d0e30f-9923-4b5e-8f8b-292fe8cc07fc/12011426617.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4559620-394c-4c64-83de-3ad17465afa5/ruwakilejefumivopu.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_off0000cde7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDE7 5716 bytes
SHA-256: e00e626eb292cbc10e6dc4f24c677334d1bef5d5871783c9a8297a3a4e188b9a
font_01_sfnt_off0000e15c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE15C 10344 bytes
SHA-256: 9f2e6c6dfd7e1b3f8699482e96862e8f0c72c202970ab699a60b9050a82d476b

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