Malicious PDF — malware analysis report

Static analysis result for SHA-256 eea007e3448b0365…

MALICIOUS

PDF

44.6 KB Created: 2020-10-05 06:41:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 05ccdb8c3772e6c9f51f98588f0681eb SHA-1: ecb18eae31fb56b7d2d41a5bfd826a3db443d9d6 SHA-256: eea007e3448b0365653dbcdd395fdf2c87fbcac46e74598bc00bf5726f21a9ba
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://ggtraff.ru/strik?keyword=farmer+john+spiral+ham+cooking+instructions In PDF document text
    • https://site-1042867.mozfiles.com/files/1042867/23462616891.pdfIn PDF document text
    • https://site-1038391.mozfiles.com/files/1038391/rizivuvepuledewowo.pdfIn PDF document text
    • https://site-1036667.mozfiles.com/files/1036667/81670241130.pdfIn PDF document text
    • https://site-1040374.mozfiles.com/files/1040374/74446163585.pdfIn PDF document text
    • https://site-1037911.mozfiles.com/files/1037911/39923086167.pdfIn PDF document text
    • http://files.ceciliafernandezfotografia.com/uploads/1/3/0/7/130776405/fubiforerozoxije.pdfIn PDF document text
    • http://besojixo.sherwoodforestpreschool.com/uploads/1/3/0/7/130738731/1b28c92af7.pdfIn PDF document text
    • http://files.donatticbd.com/uploads/1/3/1/3/131381326/nazif.pdfIn PDF document text
    • http://pejowomaz.thechapelstore.org/uploads/1/3/0/9/130969950/mavimuluwesi_dixelepidojale_bimipusuwijup.pdfIn PDF document text
    • http://zumitale.monikasmekot.org/uploads/1/3/1/1/131164250/2a1de5729.pdfIn PDF document text
    • http://files.summittrainingspecialists.com/uploads/1/3/0/7/130740025/4450762.pdfIn PDF document text
    • http://vimid.ashleyjunemarie.com/uploads/1/3/0/9/130969191/7272062.pdfIn PDF document text
    • http://files.nassauswcd.org/uploads/1/3/1/4/131453054/d032e3b0.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/13e6b807-5a70-4f82-b261-bd5d36c0190a/diwasafufifirakuxazovoxa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c6472ea-e53f-4c33-93e9-b0913ff56188/rolewibugabomifi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83e3a34f-78ce-45b9-8bc1-e987c94570d5/68262670098.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/836bba28-f167-43de-bedf-21cf6ad18d53/gusowawoju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43f36f8d-f21e-44ad-bc27-d44283cd0edd/saduxevusoxiv.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_off00006d48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D48 5440 bytes
SHA-256: d1a2354bc8270f201efb44115b190ef64fc60defde142d9d18270d2fe800d8e3
font_01_sfnt_off00007faa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FAA 10828 bytes
SHA-256: f2c251e742667a53c3dff2397c0bb95404be6120d05e939767bb086aa1857207

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