MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector link. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/pify?keyword=recommendation+letter+template+for+phd+scholarship, which is a known malicious redirector. This suggests the document is designed to trick users into clicking the link, leading them to malicious content.
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.cc/pify?keyword=recommendation+letter+template+for+phd+scholarship
- http://files.motomutz.net/uploads/1/3/0/8/130874317/kadaxixivik_vewasegilodafo_lojub.pdf
- https://cdn.shopify.com/s/files/1/0434/9450/6661/files/ncert_maths_book_class_6_download.pdf
- https://cdn.shopify.com/s/files/1/0433/8250/5628/files/83039219582.pdf
- https://cdn.shopify.com/s/files/1/0430/7936/8858/files/86457273883.pdf
- https://cdn.shopify.com/s/files/1/0434/2772/5474/files/gagetowuxilulorunad.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fiwowosilikaragufes.pdf
- https://cdn.shopify.com/s/files/1/0431/1823/1709/files/93922043057.pdf
- https://cdn.shopify.com/s/files/1/0433/1785/4373/files/bsc_zoology_notes_first_year_download.pdf
- https://cdn.shopify.com/s/files/1/0429/8260/4963/files/53511862106.pdf
- https://cdn.shopify.com/s/files/1/0428/7637/1110/files/zosiduzilodosof.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/74195332560.pdf
- https://cdn.shopify.com/s/files/1/0432/0601/7186/files/jotupipiwasajubufemorebu.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_off00005aa0.bin15a451db34192df2a17a3fbf248bdc7a5c7d7ba62e51fb235675989be51b8e48 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5AA0 | 5404 bytes |
font_01_sfnt_off00006ccc.bin8c3a9b84e89fee83dc28c374ac336382c97621cf44e6c04797a64ef9d8dd1892 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6CCC | 10224 bytes |
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