MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous links, including one to a known malicious redirector at ttraff.com, disguised as a Cambridge FCE practice test. The ML classifier strongly indicated maliciousness. The document body and embedded URLs suggest a phishing or redirection attempt to external 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.com/pify?keyword=cambridge+fce+practice+test+pdf
- http://files.committedtolove.net/uploads/1/3/1/4/131406797/burasirujijuku_ruxif_lajekemalow.pdf
- https://cdn.shopify.com/s/files/1/0433/7913/0524/files/93079884002.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tufajotojitumawudawemir.pdf
- https://cdn.shopify.com/s/files/1/0431/0876/1751/files/23514784727.pdf
- https://cdn.shopify.com/s/files/1/0431/5214/6586/files/23105296593.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78992801071.pdf
- https://cdn.shopify.com/s/files/1/0433/8873/1546/files/15460139120.pdf
- https://cdn.shopify.com/s/files/1/0430/8605/3527/files/cristianismo_puro_e_simples_baixar_gratis.pdf
- https://cdn.shopify.com/s/files/1/0435/1793/5770/files/55851474633.pdf
- https://cdn.shopify.com/s/files/1/0436/9832/3609/files/xurojovuwujagilaxul.pdf
- https://cdn.shopify.com/s/files/1/0431/0397/7634/files/adobe_illustrator_crack.pdf
- https://cdn.shopify.com/s/files/1/0429/1582/3772/files/rumugifoxipifesokomo.pdf
- https://cdn.shopify.com/s/files/1/0432/6231/2611/files/91353025862.pdf
- https://cdn.shopify.com/s/files/1/0428/9832/5671/files/whitecat_osu_skin.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_off00005df9.bin7b08cf8d479624022023c45a88b0a63b9c941957374271ed6b6dba20ea73d290 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5DF9 | 5180 bytes |
font_01_sfnt_off00006f9c.binccfa6bd5d0990e2ee4f39324df37a80e30bf164bb5867a13f10a0b8238485033 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F9C | 13120 bytes |
font_02_sfnt_off0000970d.bin0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x970D | 4324 bytes |
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