Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d423e4a6078ab7c…

MALICIOUS

PDF

35.4 KB Created: 2020-09-17 11:39:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 29d9c823150cbe5c93981e227919d69a SHA-1: ee74dba0c3739989e042ecf177a7182d30c0fecd SHA-256: 7d423e4a6078ab7cd946670d967ade8bbba6efd4585b73c7433dc4f5c38c454b
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links pointing to various domains, many of which appear to be part of a link farm. One prominent URL, https://ttraff.club/wix?keyword=olivet+middle+school+athletics, is identified as a malicious redirector. The ML classifier also strongly indicated maliciousness. This suggests the document's primary purpose is to redirect users to potentially harmful websites, possibly for SEO manipulation or to serve further malicious content.

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=olivet+middle+school+athletics In PDF document text
    • http://files.kristiepottertherapy.com/uploads/1/3/2/8/132814972/6754e8cd8481f3d.pdfIn PDF document text
    • http://vixus.ttmr8.org/uploads/1/3/1/3/131380600/ludakewuwofowi.pdfIn PDF document text
    • http://nanidokaw.vietnamcafesandwich.com/uploads/1/3/2/8/132816202/5172210.pdfIn PDF document text
    • http://fuwil.soarohio.org/uploads/1/3/0/8/130874113/jabaxosotelibo-mavitudul-volagexijufor.pdfIn PDF document text
    • http://babojux.jerseyshorewellness.com/uploads/1/3/0/8/130814328/wajawulivepalok_bixojib_xevuji_xidukebaxob.pdfIn PDF document text
    • http://xekeg.carsontidwell.com/uploads/1/3/1/3/131382243/6971329.pdfIn PDF document text
    • http://keposiwek.dia-healthcare.com/uploads/1/3/1/0/131071164/kuvinoxez.pdfIn PDF document text
    • http://files.impeccableyou.co.uk/uploads/1/3/1/3/131379706/novogunigaw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://b0d1ca0c-c4de-4df1-b72e-41047e27b4e4.filesusr.com/ugd/d9d1f5_67de4b93cf0a4da4a19054f1b756c8da.pdf?index=trueIn PDF document text
    • https://2eaa343f-d98e-49cc-8ac6-f99a803a355d.filesusr.com/ugd/158fb9_9ecb1edb9857479c9f468f8c81ec7f8e.pdf?index=trueIn PDF document text
    • https://6dfc4d78-9c2a-421b-a589-1720a2243142.filesusr.com/ugd/d5415a_79dc4747ad9847ba8506c7f8a4232847.pdf?index=trueIn PDF document text
    • https://c0c16800-0767-4c12-ab3a-4ab45c0f71fe.filesusr.com/ugd/1c8c1e_a37d73ddb37945bcacb2ba2ab789fa1c.pdf?index=trueIn PDF document text
    • https://3625e0c1-0bc6-4379-840a-289dfb12b47d.filesusr.com/ugd/6a22cb_69ec2736e28f41ef9141e5defd6ab610.pdf?index=trueIn PDF document text
    • https://813b05e0-5f5e-4bed-85f6-6b7f3e49b571.filesusr.com/ugd/f515ca_e84aa2c9b7894e1393512f0cc252ec1d.pdf?index=trueIn PDF document text
    • https://480cf537-462d-4e93-ad36-699f23de72c6.filesusr.com/ugd/4bb894_73ccad43daf241cbba076310df693ac0.pdf?index=trueIn PDF document text
    • https://f8b3e3f6-ee49-4644-b456-28f20539578b.filesusr.com/ugd/33ab24_6231f8dbe19a403d8c53e27f53444076.pdf?index=trueIn PDF document text
    • https://6b86eb0d-40a6-4650-ad95-9c06ac74fd8e.filesusr.com/ugd/d216cb_38bb6753f7f84f379de7d504b410fbb5.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004d3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D3B 5172 bytes
SHA-256: f3eaa65f19dcfd2086d5f4baa02ae3debd781b7d83110f6785a4789189697886
font_01_sfnt_off00005eb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB3 10008 bytes
SHA-256: 521b6ceda4f2bf2a6d5feb63d2ede485259a4027400da5815a86c8ecf51f57f4