MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to external websites, suggesting a link farm or redirection scheme. One URL, 'https://ttraff.ru/pify?keyword=cae+exam+samples+pdf', is flagged as a known malicious redirector. The document body, though heavily obfuscated, appears to be related to 'cae exam samples pdf', indicating a lure. The ML classifier also strongly flagged this PDF as malicious.
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=cae+exam+samples+pdf
- http://files.seanysshop.com/uploads/1/3/0/7/130740142/ditida.pdf
- http://files.philomathopenstudios.com/uploads/1/3/0/9/130968942/7650205.pdf
- http://files.jagregina.com/uploads/1/3/1/8/131871535/lurusut.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0428/0962/2695/files/rukagepidamiwitiwifo.pdf
- https://cdn.shopify.com/s/files/1/0428/7863/2095/files/zuxopetekopejijifet.pdf
- https://cdn.shopify.com/s/files/1/0434/4607/5542/files/vikanupabapavavetax.pdf
- https://cdn.shopify.com/s/files/1/0430/2517/0595/files/74627543088.pdf
- https://cdn.shopify.com/s/files/1/0428/3318/2886/files/32194255844.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lovukapovilelogitolosir.pdf
- https://cdn.shopify.com/s/files/1/0428/1643/8438/files/medikugikuvesekojo.pdf
- https://cdn.shopify.com/s/files/1/0432/8197/3403/files/1716925506.pdf
- https://cdn.shopify.com/s/files/1/0430/4352/0665/files/vifetubukamufaxasunox.pdf
- https://cdn.shopify.com/s/files/1/0435/9382/6463/files/fivukurilino.pdf
- https://cdn.shopify.com/s/files/1/0431/1485/6610/files/68007744267.pdf
- https://cdn.shopify.com/s/files/1/0434/5144/9496/files/vituma.pdf
- https://cdn.shopify.com/s/files/1/0437/1261/0472/files/86058705320.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00008c1d.binb608a80607d6a29a48a1dd0e4a9da7a66d12bd4253a24500afe72270fa8d6c27 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8C1D | 4628 bytes |
font_01_sfnt_off00009be8.bin570967ca9396cf015c8bcdeda114bda3ff68b005a8952168d3964d04d190b180 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9BE8 | 14296 bytes |
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