Malicious PDF — malware analysis report

Static analysis result for SHA-256 f594a5fd5e471555…

MALICIOUS

PDF

48.8 KB Created: 2020-10-04 11:13:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: c608501b010e38eed86f248c7fdb030b SHA-1: 55162d282f761998143603a7169aaddfa22c4cf0 SHA-256: f594a5fd5e471555dbcedb32f5d4cd15126ce07537c062a2f258b5c0f0e5f8c6
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=jimmy+neutron+the+n-men In PDF document text
    • http://files.malaysiadsg.org/uploads/1/3/1/3/131380120/fefametoguzuzebewuz.pdfIn PDF document text
    • http://files.palacefields.com/uploads/1/3/1/4/131437046/jufemelilol-ritaguzo-jojozini-jikag.pdfIn PDF document text
    • http://files.susdorchestras.com/uploads/1/3/2/6/132683252/9000527.pdfIn PDF document text
    • https://site-1037111.mozfiles.com/files/1037111/69241228331.pdfIn PDF document text
    • https://site-1043260.mozfiles.com/files/1043260/27055153104.pdfIn PDF document text
    • https://site-1039346.mozfiles.com/files/1039346/gabinomujijedikujafaje.pdfIn PDF document text
    • https://site-1037082.mozfiles.com/files/1037082/66093471891.pdfIn PDF document text
    • https://site-1039174.mozfiles.com/files/1039174/vudujejisuwadivoj.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/592778ca-21fa-4929-a7f2-5e3eb4def41c/kunedopawab.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e88ae04-d5ca-457f-aa37-086897e7cb81/valarolaxomifan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5acd8bd-221b-4030-bc9b-ca5b082d9524/getigogumosavesev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6556/5589/files/niwagirajatefotopopu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/3947/7919/files/lanovadivedalo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3140/2395/files/juvubagasubije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8991/1194/files/xamakudeper.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 4

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_off000082c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82C3 4628 bytes
SHA-256: 68eda415d9581d00ba9a6c21a137e3d11d0e3158d1f59a5def143a87811c4a76
font_01_sfnt_off00009268.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9268 10700 bytes
SHA-256: e306dac5c56d67f2429ef523db104993fdeb630edc2daa0106b0059c9eed838f

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