MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wb?keyword=atheism%20definition%20pdf'. This URL is presented within the document body, disguised as a definition of atheism. The ML classifier also strongly indicated maliciousness. The document appears to be a lure to redirect users to malicious infrastructure.
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/wb?keyword=atheism%20definition%20pdf
- https://static.usrfiles.com/ugd/2b25e8_829725178f1f482b9e9bb49110b22af1.pdf
- https://static.usrfiles.com/ugd/735424_fa0170e7870345c3b50573820c2bc1a0.pdf
- https://static.usrfiles.com/ugd/b8c837_a6071401020040e89cf7e0f04e877af2.pdf
- https://static.usrfiles.com/ugd/cdfdba_384d2567f1a14c5881288979d9d1b285.pdf
- https://static.usrfiles.com/ugd/a48928_4a5e0ae5e482494380c80ff2099ad1e8.pdf
- https://static.usrfiles.com/ugd/9219f8_c74b9e98bc764a6195ef2ff2804e6b42.pdf
- https://static.usrfiles.com/ugd/9374a7_3848d3d03fc9473f99388d336876954f.pdf
- https://static.usrfiles.com/ugd/857e61_398ab03273ba4428ad5c01649054c343.pdf
- https://static.usrfiles.com/ugd/b8c837_9d1f4062f4564fcf9ee63f59a0a84290.pdf
- https://static.usrfiles.com/ugd/6cf392_06be2de22c2d440faa078e35b8ff4a66.pdf
- https://static.usrfiles.com/ugd/97aff7_b49ce72ca1af4260bc18376d3743bfcf.pdf
- https://static.usrfiles.com/ugd/3a38e0_d96916032d7742d7b7a3fedbf345071c.pdf
- https://static.usrfiles.com/ugd/011e4b_13ba3fb4d23642abb71c9da222676050.pdf
- https://static.usrfiles.com/ugd/8b9728_79eb9b558232445b980ea83ac20b2632.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_off00013a9f.bin5b6bc5d96e95f8f66760a5559768a8d688fff24d07e4331ca64f19ea6cc17f70 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A9F | 4720 bytes |
font_01_sfnt_off00014a89.bin59cfaea090934395fe3d5ac3e1e8026437100c80dcff03a6a15c68837e7fd984 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14A89 | 10600 bytes |
font_02_sfnt_off00016e3c.bin4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16E3C | 4324 bytes |
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