Malicious PDF — malware analysis report

Static analysis result for SHA-256 f68a4c33043c7b04…

MALICIOUS

PDF

47.2 KB Created: 2020-10-14 21:47:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 7b9df4d8cde3ddf2a158aa80dfae378b SHA-1: 89408290c5b907a89983fa75183a0f00ef09cf92 SHA-256: f68a4c33043c7b04f7b748c557c69a395c4cfb9791fadbd0b0c7b64829b80478
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://gettraff.ru/strik?keyword=drugs+used+in+endocrine+disorders+pdf In PDF document text
    • https://site-1043808.mozfiles.com/files/1043808/giwaniweduzokijuwuza.pdfIn PDF document text
    • https://site-1038699.mozfiles.com/files/1038699/zepok.pdfIn PDF document text
    • https://site-1037079.mozfiles.com/files/1037079/52200925552.pdfIn PDF document text
    • https://site-1040346.mozfiles.com/files/1040346/piper.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366661/normal_5f871baf14849.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366331/normal_5f8746318f077.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365598/normal_5f86f436280d1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365639/normal_5f86f4361cd3f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366031/normal_5f87037f4bbc9.pdfIn PDF document text
    • https://site-1038345.mozfiles.com/files/1038345/jotamoteketos.pdfIn PDF document text
    • https://site-1042591.mozfiles.com/files/1042591/85205690682.pdfIn PDF document text
    • https://site-1044067.mozfiles.com/files/1044067/ketuxawefixen.pdfIn PDF document text
    • https://site-1042670.mozfiles.com/files/1042670/gitiledikopijaju.pdfIn PDF document text
    • https://site-1039809.mozfiles.com/files/1039809/sugekibaje.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/87748e6d-95f7-44b5-9273-0ef3ce211bea/dupesezodan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/91713448-ace8-4bcf-8459-d9af615433d8/90090028552.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/555e4bc4-f989-4510-8728-bf9266810026/20681928400.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ebb7c7fe-4829-45af-853f-4ea8915c3960/vivipadukejigizeduzuzo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4819997f-70bb-4544-b118-0b21fc7cc93b/21338604804.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4cc8594-e655-4c3f-8dfe-fda1de279432/58768458633.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007b26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B26 5080 bytes
SHA-256: 634d8801dd68c420d0521e5624f7646d39565a633ce30f65c6a7d020b9c8d502
font_01_sfnt_off00008c7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C7E 10376 bytes
SHA-256: 00a8604221f65679d697a69f04690cd5c4540f180ad474d20fcdc829716f12af

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