Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c8da28327cd1377…

MALICIOUS

PDF

34.8 KB Created: 2020-10-10 10:04:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b4c4465a1b9ddabafb8288fac90f39d1 SHA-1: 25dcefaee0877dfc53feea7488654ab26d4251a9 SHA-256: 2c8da28327cd1377821020f95c8797081132adb8bbe99e642ac2330336d28cd7
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://gettraff.ru/strik?keyword=loki+funko+pop+16 In PDF document text
    • http://zokof.timberlynfarms.com/uploads/1/3/1/4/131452903/04325289c85.pdfIn PDF document text
    • http://files.widebaymotorcomplex.com/uploads/1/3/1/4/131437977/sokakerikorepuf.pdfIn PDF document text
    • http://files.quantelab.org/uploads/1/3/0/7/130776167/zakegarovowedaj.pdfIn PDF document text
    • http://bavuli.personalpilatesma.com/uploads/1/3/0/7/130739235/d91eb7bf6b.pdfIn PDF document text
    • https://site-1043837.mozfiles.com/files/1043837/pagabusijor.pdfIn PDF document text
    • https://site-1036812.mozfiles.com/files/1036812/58340039823.pdfIn PDF document text
    • https://site-1036941.mozfiles.com/files/1036941/kuxaxilas.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/103c3259-58ae-4dd2-9436-c0da7234a504/kitemodevodev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04ea41d0-6970-4d7e-a387-bd79a49c0a1d/26347616599.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8cc2432e-8c4d-4bd8-82d1-928c93f12650/12811908317.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ac1feb9-8413-4438-8bb6-3c384bead858/44329964095.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/212fd4f7-4657-4854-9d40-6b995f2cdd2f/ligawolajupupufakezovuwa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dea8ebc4-941f-45ea-8e07-4213b287443f/55308358365.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e25a8f3-932f-426f-ab0e-9f2bbdd8a7a7/fimilof.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23ff23f0-dc90-4e5b-a331-5cf7ad154f99/29675156134.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/864a751f-ebde-454f-9295-4c9effe734cd/52244783245.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_off00004c12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C12 4588 bytes
SHA-256: 5811a9672aa130c80e5e88eb009ff8e998f620ec837408a60a756dee501b55df
font_01_sfnt_off00005bda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BDA 10156 bytes
SHA-256: 33f30204dc431f11d93216e7e42f1a55333de0b2e3c6e43315aca5563e214344

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