Malicious PDF — malware analysis report

Static analysis result for SHA-256 b519d32e8f96d166…

MALICIOUS

PDF

43.9 KB Created: 2020-11-07 13:35:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15
MD5: b5c3791cfd0271a34aca803767dc62b2 SHA-1: 7509910e3c1fabb5e938550d56e675451b4a0270 SHA-256: b519d32e8f96d166203933b91dd71b12b1b3b7c609f2485b80e0fba5cf4d7d96
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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 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.
  • 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://traffine.ru/aws?keyword=chris+watts+discovery+case+documents In PDF document text
    • https://mosodujisar.weebly.com/uploads/1/3/0/7/130739504/42d6366.pdfIn PDF document text
    • https://nipaxibovaj.weebly.com/uploads/1/3/1/3/131379211/2801107.pdfIn PDF document text
    • https://rasagarus.weebly.com/uploads/1/3/4/4/134452949/bofosa.pdfIn PDF document text
    • https://suganolorifumu.weebly.com/uploads/1/3/0/8/130814011/1242677.pdfIn PDF document text
    • https://veraweno.weebly.com/uploads/1/3/0/7/130739577/9069097.pdfIn PDF document text
    • https://zugufavowi.weebly.com/uploads/1/3/0/8/130874222/3029578.pdfIn PDF document text
    • https://relugudikovok.weebly.com/uploads/1/3/4/2/134265752/jetasunulupol.pdfIn PDF document text
    • https://norudajesopoz.weebly.com/uploads/1/3/4/3/134340776/4770550.pdfIn PDF document text
    • https://puwisubefubozaj.weebly.com/uploads/1/3/4/5/134516422/9836142.pdfIn PDF document text
    • https://repotadidutu.weebly.com/uploads/1/3/4/3/134310826/defovifatoxoxemapewu.pdfIn PDF document text
    • https://pebiname.weebly.com/uploads/1/3/1/4/131453048/menoximinadupofegega.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/banula/naziresav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8fdb24a-2fbf-4a20-b402-7c2963818558/fuboranizixadewofigipoj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3aeb468a-ecda-4571-bb1d-d679e9245eb8/23824948961.pdfIn PDF document text
    • https://s3.amazonaws.com/nitatotol/deraxiluw.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_off00006cfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CFE 5304 bytes
SHA-256: f3c09cb4a83cd636604514b920768f82e7d65353b547a31d19170d7dc43bb2db
font_01_sfnt_off00007ef3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EF3 10512 bytes
SHA-256: 9ae41ac9f4f72e6cb223b06a3a4e82ff3779590535aa1e82b9841b88980402de

Open this report in the interactive analyzer, or submit your own file for analysis.