Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2c5a1bf63cd88b9…

MALICIOUS

PDF

38.2 KB Created: 2020-09-17 09:39:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bc9cca3ccabc441eb9df51af6f5c67cc SHA-1: edc63054beead5163bffc39b44105bb63d23c1b8 SHA-256: c2c5a1bf63cd88b9a08f97da6a00666efc530766225b76fc8785745e0e619642
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm designed to direct users to a malicious redirector. The primary malicious URL identified is https://ttraff.club/wix?keyword=immanuel+wentzville+fast+direct. The ML classifier strongly indicated maliciousness, and the PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the presence of a malicious redirector. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, likely for SEO manipulation or to obscure the malicious destination.

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://ttraff.club/wix?keyword=immanuel+wentzville+fast+direct In PDF document text
    • http://files.sandracohn.com/uploads/1/3/1/4/131453950/3764528.pdfIn PDF document text
    • http://files.juliewiegand.com/uploads/1/3/1/4/131453480/dd1b72145be5fa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2730/7416/files/port_aransas_fishing_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6971/0242/files/scientific_advertising_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3552/5282/files/vibixefupubewitomef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4542/8122/files/27127021951.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5874/7800/files/52071509881.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4248/8998/files/princeton_review_s_cracking_the_new_sat_2020.pdfIn PDF document text
    • https://23a90f23-b4ed-4a0c-ac8f-60b4236a38e9.filesusr.com/ugd/f523c3_b536017fdd0f4ff89a87a45918a856dc.pdf?index=trueIn PDF document text
    • https://76c9d1da-e1e2-48fb-9b50-c1020351b956.filesusr.com/ugd/cf5aa9_3905a1b4e07b40ebb4431dd4065f82dc.pdf?index=trueIn PDF document text
    • https://19dd5c97-71bc-4d74-a496-bfee6f248569.filesusr.com/ugd/5a4aad_6f817c7f906549e0a89d41b24deadd93.pdf?index=trueIn PDF document text
    • https://1abf55cb-4371-467e-9fad-bc1c3f2b2f7e.filesusr.com/ugd/3eb4bd_094ef0a192844d81a8c81ad35dc14677.pdf?index=trueIn PDF document text
    • https://618af936-ffb8-4f21-9eb4-fc652dae1b28.filesusr.com/ugd/3d514e_3ae72a779a264acbac3d114ab4c90e4c.pdf?index=trueIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000047e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47E4 5076 bytes
SHA-256: 47b8c9e80fdfef0e345f34560211f83de01720e37ea4b9b37bc54810e5136814
font_01_sfnt_off00005919.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5919 10304 bytes
SHA-256: 3e4ee2c06b67df9e57c9e49243df4a40d51eeba542fda9b9e69c016cbf540b93
font_02_sfnt_off00007c6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C6C 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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