MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. The link leads to 'ttraff.ru', a known malicious redirector. The document also contains a large number of embedded links to 'static.usrfiles.com', suggesting a link farm or SEO poisoning tactic. The ML classifier strongly indicated maliciousness.
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.ru/pify?keyword=kakamega+county+jobs+for+form+four+leavers
- https://static.usrfiles.com/ugd/cc03df_e385d98300724a69928bdbfc640bafe6.pdf
- https://static.usrfiles.com/ugd/d7ba0f_adb28e9d16534f1f9716e48c22fc48b1.pdf
- https://static.usrfiles.com/ugd/b8c837_eeeec7059f2c46c69f5ad0e5a6696a2e.pdf
- https://static.usrfiles.com/ugd/d9d1f5_3e2f6ab32bfb4157b61490db3b1e4260.pdf
- https://static.usrfiles.com/ugd/345929_6f934eae1fdc49e3ad8bb77bcdd32aa1.pdf
- https://static.usrfiles.com/ugd/ca300b_12a8c0644c7f4e2eb977fa2ed954d422.pdf
- https://static.usrfiles.com/ugd/b8c837_1ac3c43eabc7466497d2b29eb1063d4c.pdf
- https://static.usrfiles.com/ugd/739437_f15dd49ef0204de993eb8fe12f484d35.pdf
- https://static.usrfiles.com/ugd/9e53d4_80af588d27c64697bb6a72632a71bc58.pdf
- https://static.usrfiles.com/ugd/de3d83_c61265f90e0249389d981f8072dd0fd4.pdf
- https://static.usrfiles.com/ugd/b8c837_6d956ce77f8b44fa80c665f0e1b82399.pdf
- https://static.usrfiles.com/ugd/38eac1_067bdfddd49a4e82b476ddf6a3b57303.pdf
- https://static.usrfiles.com/ugd/1813b3_3b228ca0bd6243bfa7ad3ab8d4677c33.pdf
- https://static.usrfiles.com/ugd/6c032c_fd81cd62aae347368501d807fcae057b.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000589d.bin0ecab52a1149f17b73828237f9d92038a9b8e4965d8da478772f820c325f7a56 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x589D | 5612 bytes |
font_01_sfnt_off00006bbc.bin470cf721c52a64197eb003b1124155af7fed0d54c76e925eeedfa0dd10ffd3ec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6BBC | 10120 bytes |
font_02_sfnt_off00008e6b.binb0e6e7b413e90826d6de5c462ffb73d27c17a48f997ba472566106b0f7d3ba34 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8E6B | 16216 bytes |
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