Malicious PDF — malware analysis report

Static analysis result for SHA-256 b01f32547785b4e3…

MALICIOUS

PDF

39.3 KB Created: 2020-10-05 23:56:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 46421839c09b19797c479306242b7982 SHA-1: 39274c79bc318b7d23593c70c3e062c0d61f48c8 SHA-256: b01f32547785b4e30166d8189e960139a600a7579ead6c3933923946f0b3e31b
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://ttraff.com/pify?keyword=soccer+stars+cheats+ios In PDF document text
    • https://site-1038890.mozfiles.com/files/1038890/53882690010.pdfIn PDF document text
    • https://site-1039380.mozfiles.com/files/1039380/31530507102.pdfIn PDF document text
    • https://site-1036693.mozfiles.com/files/1036693/92288303701.pdfIn PDF document text
    • https://site-1039235.mozfiles.com/files/1039235/82373861801.pdfIn PDF document text
    • https://site-1036851.mozfiles.com/files/1036851/ximek.pdfIn PDF document text
    • https://site-1036821.mozfiles.com/files/1036821/65899510229.pdfIn PDF document text
    • https://site-1036839.mozfiles.com/files/1036839/1367054190.pdfIn PDF document text
    • https://site-1039215.mozfiles.com/files/1039215/borujuvamafazazeruxugo.pdfIn PDF document text
    • https://site-1038387.mozfiles.com/files/1038387/82115711582.pdfIn PDF document text
    • http://elitegames.top/SoccerStarsIn 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/baff062b-185b-41a1-9ef6-7caebb1ca403/zopodejujeral.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c7f63ae-8c2f-4126-b645-0440e744b735/vakimovokisunomepevu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa855639-6f6a-4147-b007-69dc5be1fff0/mejosavapup.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3731ded4-f418-4ce2-ba81-711e9220a074/53465207954.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50e0789f-bbb1-4125-95cf-936406f57e4e/44345650646.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c4363678-9cd6-4f42-bd53-d76bba4a1dfd/26882106147.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/642f0417-ecb8-44d8-9782-a01a0ac92597/59107356307.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_off00005d84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D84 4956 bytes
SHA-256: 3be6bf9ad81508107e57e644277a57a042d8598380b5a4ca4956c5b1a2167430
font_01_sfnt_off00006e56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E56 10052 bytes
SHA-256: b66faae81106382be40574ed4c23c588681e9d45d8e71ae66ebd704ff65f8f56

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