MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many of which point to redirector infrastructure. One prominent link impersonates a USPS login page, suggesting a phishing attempt. The ML classifier also flagged this PDF as malicious, indicating a high probability of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
Heuristics 3
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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.
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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.
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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.club/123?keyword=usps+liteblue+sign+in
- https://cdn-cms.f-static.net/uploads/4385206/normal_5f8c8eb202262.pdf
- https://cdn-cms.f-static.net/uploads/4388598/normal_5f91ba1db7673.pdf
- https://cdn-cms.f-static.net/uploads/4374710/normal_5f8be7e517b7a.pdf
- https://cdn-cms.f-static.net/uploads/4376098/normal_5f8b104a8c0ca.pdf
- https://cdn-cms.f-static.net/uploads/4382194/normal_5f96413d7c14d.pdf
- https://vosaxoro.weebly.com/uploads/1/3/4/4/134469305/kanawowupul.pdf
- https://cdn-cms.f-static.net/uploads/4392861/normal_5f9657c089073.pdf
- https://cdn-cms.f-static.net/uploads/4378382/normal_5f95e31a67ff3.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/01640c92-f974-4ce2-999a-90c5ab8ac5f8/59694120745.pdf
- https://uploads.strikinglycdn.com/files/455921b7-3e11-4ac2-ad82-0a5e8520f876/13640602335.pdf
- https://uploads.strikinglycdn.com/files/f378b5b3-9326-453f-aabd-1a37f9d0346e/descargar_partidos_de_futbol_completos_gratis.pdf
- https://uploads.strikinglycdn.com/files/c294abee-58d1-4d39-9aee-b2ac56d07cef/sacred_pathways_test_printable.pdf
- https://uploads.strikinglycdn.com/files/849b5590-f96b-49cf-81ce-21a5029719e6/1536037612.pdf
- https://uploads.strikinglycdn.com/files/01ef4cd9-661e-4513-913c-59dd6d43647e/vusikat.pdf
- https://uploads.strikinglycdn.com/files/b142e128-2fd4-4d00-9432-3bacbdf4dd90/84039591501.pdf
- http://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006f53.binc5c710c7530c48a12baa280596fed27ee6e9d639bcc8b173381627a7572e41cf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F53 | 4812 bytes |
font_01_sfnt_off00007fc1.binffd9341a8466a3859f6cf971d0773fa1f5b850dfb7b07d7c69a142afee468b3f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7FC1 | 11368 bytes |
font_02_sfnt_off0000a390.bin699dfe802d2e61b59f70a740a53d8063cc5c7457fc0440332324b2748f3c2b44 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA390 | 11152 bytes |
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