MALICIOUS
140
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs hosted on platforms like Shopify. The document body, though heavily obfuscated, contains the malicious URL and references an exam form, suggesting a lure. The presence of a callback phishing lure heuristic further supports the malicious intent.
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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
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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=apsu+rewa+exam+form+2018+last+date
- https://cdn.shopify.com/s/files/1/0434/6196/8025/files/magisterium_4_espaol_gratis.pdf
- https://cdn.shopify.com/s/files/1/0432/2512/0927/files/pirokivusaduto.pdf
- https://cdn.shopify.com/s/files/1/0447/8061/7885/files/penguin_books_free.pdf
- https://cdn.shopify.com/s/files/1/0431/6980/8550/files/bumixotonuwa.pdf
- https://static.usrfiles.com/ugd/0adedf_9e4880d7b3ab43528a7ccb2d3052908b.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/magej.pdf
- https://cdn.shopify.com/s/files/1/0446/2634/6147/files/systemic_lupus_erythematosus_guidelines_2018.pdf
- https://cdn.shopify.com/s/files/1/0428/5631/7091/files/unblock_caller_id_on_android_phone.pdf
- https://cdn.shopify.com/s/files/1/0433/8139/1514/files/38559288801.pdf
- https://static.usrfiles.com/ugd/9757e7_be1c0ef8816c4030987c8ec086f3844c.pdf
- https://static.usrfiles.com/ugd/efb3f0_539d846d0d7b461c9bfb54a97100d1d0.pdf
- https://static.usrfiles.com/ugd/451a43_0ab92ba08f784528b511fc225756a719.pdf
- https://static.usrfiles.com/ugd/b8c837_d6e2d46d0e454a4c8ba63f7b806c40a2.pdf
- https://static.usrfiles.com/ugd/865d50_3721dfd3a9f047498ac08a7f9055c692.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/
- https://cdn.shopify.com/s/files/1/0428/5631/7091/files/unblock_caller_id_on_andr
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_006_off0000abe5.bin8d9baa0e34fbccb226a783f9a5d63c0f6f5de0ffd7abf23642388e36d26cac0d |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0xABE5 | 4772 bytes |
font_00_sfnt_off00006a5d.bin415b2a853f9f44840c5e8dc435b515aabc09c6230dc49b7f2ecec3f8351ba1af |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A5D | 5856 bytes |
font_01_sfnt_off00007e51.bin5cb937d1eb6ffda60b2f5bbc137883051bc0eb49a210ffe96853928b61c52a81 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7E51 | 14420 bytes |
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