MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links, with one pointing to a known malicious redirector infrastructure at 'ttraff.cc'. The document body, though heavily obfuscated, contains text suggesting it is a worksheet, which is a common lure. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' and the ML classifier strongly indicate malicious intent, likely for phishing or malware delivery.
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=fraction+decimal+percentage+table+worksheet
- http://nizug.merlynchesterman.com/uploads/1/3/0/8/130814411/zaforerezis.pdf
- https://cdn.shopify.com/s/files/1/0435/5604/4951/files/50261388483.pdf
- https://cdn.shopify.com/s/files/1/0431/1423/4016/files/zettili_quantum_mechanics.pdf
- https://cdn.shopify.com/s/files/1/0466/3033/8725/files/introduction_to_sociology_by_giddens.pdf
- https://cdn.shopify.com/s/files/1/0429/7628/0729/files/42290882113.pdf
- https://cdn.shopify.com/s/files/1/0431/9661/2768/files/21723377511.pdf
- https://cdn.shopify.com/s/files/1/0440/1725/4565/files/calendario_2020_y_2020_sep.pdf
- https://cdn.shopify.com/s/files/1/0440/2610/1925/files/all_your_fault_song.pdf
- https://cdn.shopify.com/s/files/1/0430/8572/5857/files/16247127366.pdf
- https://cdn.shopify.com/s/files/1/0430/5358/0439/files/bosasovufowegujet.pdf
- https://cdn.shopify.com/s/files/1/0435/8363/5619/files/52564067607.pdf
- https://cdn.shopify.com/s/files/1/0434/2310/5189/files/19761156554.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_off0000597d.binbc31e4a555daaff813fe54902d2d32e3b1f7591f84688b32636f76185fac55ab |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x597D | 5524 bytes |
font_01_sfnt_off00006c1a.binb322360994d39994346008a65906e77e1d13ec3a58a3cb62180c42e8f423b6ca |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C1A | 10272 bytes |
font_02_sfnt_off00008f3a.bin1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8F3A | 4324 bytes |
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