Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb9c8f24dabceb19…

MALICIOUS

PDF

42.0 KB Created: 2020-09-16 22:20:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6a3fa678dc7ff1fcf05675f7b7b5d620 SHA-1: de5d02cabf66221c56e11414b6a9beb5fc6f80b9 SHA-256: cb9c8f24dabceb19dbd4739e2379bd2ba90f940f5dd06b02758921af2e70a74c
184 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, including a critical redirector link to 'ttraff.club' which is associated with malicious activity. The document body, though partially corrupted, contains text related to a 'fun run arena prize' and the URLs themselves suggest a lure to a potentially malicious site. The presence of a link farm further indicates a malicious intent to distribute links to various potentially compromised or malicious PDF files.

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=how+to+hack+fun+run+arena+prize In PDF document text
    • http://nevezenu.saratogacoffeetraders.com/uploads/1/3/0/7/130739088/6045124.pdfIn PDF document text
    • http://kiweraf.poodlesoftampabay.com/uploads/1/3/1/3/131398036/vilerox-xumurimon-mitirek-xerapobegumaket.pdfIn PDF document text
    • http://wesozup.prakritidance.com/uploads/1/3/0/8/130873782/336e3cb02.pdfIn PDF document text
    • http://files.anthonyjgrasso.com/uploads/1/3/1/3/131397927/6982247.pdfIn PDF document text
    • http://files.breezybrigade.com/uploads/1/3/0/7/130776573/d622d68.pdfIn PDF document text
    • http://widajufi.depthstiny.com/uploads/1/3/0/8/130814579/jajuvabegojenoj.pdfIn PDF document text
    • http://zolirila.gracesiouxcity.org/uploads/1/3/2/7/132740352/781cdc310b3.pdfIn PDF document text
    • http://files.poughkeepsiepopculture.com/uploads/1/3/0/7/130776058/690736.pdfIn PDF document text
    • http://files.verticalgunracks.com/uploads/1/3/1/6/131606035/473729.pdfIn PDF document text
    • http://files.michr.net/uploads/1/3/1/4/131438641/6176850.pdfIn PDF document text
    • http://files.elitehall.org/uploads/1/3/0/8/130813100/589754.pdfIn PDF document text
    • http://bavasu.totsandco.org/uploads/1/3/0/7/130776089/zuwir-gilatewil-sisas-fajid.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/8190/9660/files/kosuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0620/9702/files/zonarajixid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5078/7231/files/ditavamerosajewe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3041/2437/files/simple_under_construction_html_page_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4023/3889/files/33063487492.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_off00006530.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6530 5060 bytes
SHA-256: 465f01837d4e89818520b0ec8ad99fda4a92c49a078864b52cd3262ecc97cda9
font_01_sfnt_off00007680.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7680 10728 bytes
SHA-256: 3414c05a2d6d5273ae55d9d146bf2344812c69d1ac3400a0e3d709a371717c44

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