MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector infrastructure (ttraff.com). The document body, though heavily obfuscated, contains text related to 'medical certificate format for college admission pdf', suggesting a lure. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy, likely to obscure the malicious redirector. The ML classifier strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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.
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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.com/wix?keyword=medical+certificate+format+for+college+admission+pdf
- https://cdn.shopify.com/s/files/1/0438/1586/2434/files/hypixel_pe_ip.pdf
- https://cdn.shopify.com/s/files/1/0430/1769/9477/files/rewebemekinanureti.pdf
- https://cdn.shopify.com/s/files/1/0430/7399/4905/files/20824854939.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bokowolexom.pdf
- https://static.usrfiles.com/ugd/1849a1_0a43f38097d8475ea8b330d4f1b08fb8.pdf
- https://static.usrfiles.com/ugd/04e6f9_e0a6110e07944ee882bbe5f4a7c3f863.pdf
- https://static.usrfiles.com/ugd/930050_ccf3fab763544ddeafb12c1740f51457.pdf
- https://static.usrfiles.com/ugd/b8c837_df685358f3244444b989f5a7620b5a96.pdf
- https://static.usrfiles.com/ugd/2b25b5_9f0688198acc48a38e3f2784b6f11453.pdf
- https://static.usrfiles.com/ugd/eb5a6a_9198ce021cee43789918aee420ca4e5d.pdf
- https://static.usrfiles.com/ugd/bb13a2_9be8e04f118d49b3a3a9b180e90be2cc.pdf
- https://static.usrfiles.com/ugd/83d902_4bd3147e328a4c3ca71830e0db0ef615.pdf
- https://static.usrfiles.com/ugd/b8c837_7bc36a9f5104486ca7fc52d0f3f10884.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006677.bin125dffb296cdc1a30aa7b615d668880af89cdc297c79c153875582e164d2b058 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6677 | 5480 bytes |
font_01_sfnt_off00007911.bin131479faefeb96fc8c20f142ecdb90b41769787f7c04fbc35ed48a806bb60aeb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7911 | 10368 bytes |
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