MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file was flagged as malicious by an ML classifier and contains a critical heuristic indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL https://ttraff.ru/pify?keyword=definition+of+compressional, which is also listed as a malicious redirector. This suggests the PDF's primary purpose is to lure users to a malicious site.
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/pify?keyword=definition+of+compressional
- http://files.paulquinndistrict-amec.org/uploads/1/3/1/3/131380773/2205875.pdf
- http://files.wickenburgbootsbreastcancer.org/uploads/1/3/1/0/131069879/917002.pdf
- http://files.3jcn.com/uploads/1/3/0/8/130815080/kereruja.pdf
- https://cdn.shopify.com/s/files/1/0429/2168/9254/files/27776100183.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/saran.pdf
- https://cdn.shopify.com/s/files/1/0436/7928/5401/files/faboderapugadubera.pdf
- https://cdn.shopify.com/s/files/1/0440/3943/8501/files/61218772116.pdf
- https://cdn.shopify.com/s/files/1/0429/7388/8671/files/12185319111.pdf
- https://cdn.shopify.com/s/files/1/0433/8227/6250/files/10819840679.pdf
- https://cdn.shopify.com/s/files/1/0433/0982/6213/files/rusodobawetibulod.pdf
- https://cdn.shopify.com/s/files/1/0428/7240/6179/files/tegozopuriwinojixok.pdf
- https://cdn.shopify.com/s/files/1/0433/2978/1918/files/36846865830.pdf
- https://cdn.shopify.com/s/files/1/0438/3647/3501/files/97969133911.pdf
- https://cdn.shopify.com/s/files/1/0435/0358/3384/files/toxudumegozuzevaf.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_off000061ec.bin6ae3ed9ad8d8f9d0721ba381176f55816dc8dabb9ddd68cc7225e296ee82d4e5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61EC | 4948 bytes |
font_01_sfnt_off0000729d.bincf7ffd65d753072c44003040eff70658ae8aac55a60c43efe7fbaa7f28a882a3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x729D | 11672 bytes |
font_02_sfnt_off00009975.binb50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9975 | 4324 bytes |
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