MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains numerous embedded links, many of which point to disposable hosting or known redirector infrastructure. One critical heuristic identified a brand-impersonation credential phishing lure for UPS, directing users to a malicious redirector. The ML classifier also strongly indicated maliciousness. The document's primary purpose appears to be credential harvesting through a link farm.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
-
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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_FARMSmall 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.
-
Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISHDocument impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://kidunaxu.weebly.com/uploads/1/3/1/4/131437100/715115.pdf.
-
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall 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_INCREMENTALThe 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_URLOne 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.cc/123?keyword=power+rule+of+exponents+definition In PDF document text
- https://cdn-cms.f-static.net/uploads/4388422/normal_5f90c92c4679f.pdfIn PDF document text
- https://s3.amazonaws.com/nigimul/clinical_interview_techniques.pdfIn PDF document text
- https://kidunaxu.weebly.com/uploads/1/3/1/4/131437100/715115.pdfIn PDF document text
- https://pojosividadom.weebly.com/uploads/1/3/4/5/134524524/d76011.pdfIn PDF document text
- https://suganolorifumu.weebly.com/uploads/1/3/0/8/130814011/bc71e621f30cf1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4377678/normal_5f9e473464cd5.pdfIn PDF document text
- https://jegupifak.weebly.com/uploads/1/3/4/0/134018348/efd695a6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369165/normal_5f87db19c478f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4415308/normal_5f947a23ea972.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/bd4fa0f3-2e64-461d-8624-02e2cfd4e861/67611911756.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7c895272-fa22-4d85-b547-f38b75de2b15/mamupumumana.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e87107e0-963d-44c2-ac31-b16cb0363847/lurolododewolidug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0494/0926/1735/files/2223204802.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
🗂 Part of campaign:
f-static.net
7 samples
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000060bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x60BD | 4988 bytes |
SHA-256: af3e6906c2e0aec56e07e7f1b245dd6fef029f9e9b2408fdfd508054c19cf4a3 |
|||
font_01_sfnt_off000071d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x71D6 | 1796 bytes |
SHA-256: f2fd644e4456c386070f09a2777277c31662a4a00a06e6a83a863dc8a0122cd5 |
|||
font_02_sfnt_off00007aa7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7AA7 | 11012 bytes |
SHA-256: d5ef9b0d457a9b7ccdd66591d0476665321684973d843325f735266976f15331 |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.