MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains embedded links, one of which, 'https://ttraff.ru/wix?keyword=the+black+woman%2527s+guide+to+understan', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and other links to what appears to be a link farm. The ML classifier strongly supports the malicious verdict. The primary attack vector appears to be directing users to malicious infrastructure via embedded links within the PDF.
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/wix?keyword=the+black+woman%2527s+guide+to+understan
- https://static.usrfiles.com/ugd/be19e1_77128cd29371498da873b0b8125f9213.pdf
- https://static.usrfiles.com/ugd/b8c837_bf5208196d7941bab4c767336e1eadb9.pdf
- https://static.usrfiles.com/ugd/0d9a50_28ad464944f2462a89690bd708bfb89a.pdf
- https://static.usrfiles.com/ugd/c4ccc4_3bc6daf2ede4410ba4bb1587e768438d.pdf
- https://cdn.shopify.com/s/files/1/0432/6575/3241/files/makkar_ielts_speaking_2020_download.pdf
- https://cdn.shopify.com/s/files/1/0430/4191/5042/files/114576933.pdf
- https://cdn.shopify.com/s/files/1/0431/5581/6599/files/jupusorowunuxetezasadeta.pdf
- https://cdn.shopify.com/s/files/1/0428/6545/9366/files/29896216582.pdf
- https://cdn.shopify.com/s/files/1/0460/9363/1652/files/munev.pdf
- https://static.usrfiles.com/ugd/eed56f_d62860ccfe804b2b8560fdbcacfa03f7.pdf
- https://static.usrfiles.com/ugd/b5472a_3aa8c9f5d2914d7d8fc6aeea1858ae4a.pdf
- https://static.usrfiles.com/ugd/1f2646_5f98805cb5a6438ba3190b66f626547f.pdf
- https://static.usrfiles.com/ugd/3aca14_529d2f0bda884343b7d201b1744eb10a.pdf
- https://static.usrfiles.com/ugd/299074_b791e08644bc47b7a63a7ccb62ae635e.pdf
- https://static.usrfiles.com/ugd/b8c837_b9a42f47445e48849989b37a702e4ada.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_off000062b4.binfc9e6c5eb6c31e78e3580faaaea3692e8e75819a527d7d0ed2b3b079cb7686fa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62B4 | 5632 bytes |
font_01_sfnt_off000075c3.bin6947bfefca6e7053f0b84969f04e89b4641ac7507ea783c0574b212fd318635b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75C3 | 11008 bytes |
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