MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, including one pointing to a known malicious redirector. The document body, though obfuscated, appears to be a lure related to educational materials. The ML classifier strongly indicates maliciousness, and the presence of a redirector suggests an attempt to lead the user to a malicious site for further exploitation.
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/wb?keyword=cambridge%20primary%20checkpoint%20past%20papers%20english%20pdf
- http://wumusugel.spotlightseniorservicestucson.com/uploads/1/3/0/7/130740019/741584.pdf
- http://files.shadysideofthetracks.com/uploads/1/3/1/4/131406762/9744250.pdf
- http://xurinupem.bastionhema.com/uploads/1/3/0/9/130969060/pawotob.pdf
- http://files.rhenitauchid.com/uploads/1/3/1/6/131607310/8b652613a8f78b.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0436/5543/0302/files/wopakaroxesuvuvanaxiwu.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/77363931764.pdf
- https://cdn.shopify.com/s/files/1/0432/8259/6004/files/19574522488.pdf
- https://cdn.shopify.com/s/files/1/0430/5806/9655/files/vukax.pdf
- https://cdn.shopify.com/s/files/1/0430/5505/5002/files/vopasigawomexumevasanezo.pdf
- https://cdn.shopify.com/s/files/1/0433/2004/9822/files/tafanaforukudonow.pdf
- https://cdn.shopify.com/s/files/1/0429/8512/8095/files/architectural_design_guidelines.pdf
- https://cdn.shopify.com/s/files/1/0429/9898/8949/files/memimivazosojigoru.pdf
- https://cdn.shopify.com/s/files/1/0440/8334/7606/files/aurora_rising_free.pdf
- https://cdn.shopify.com/s/files/1/0432/0703/2990/files/xagixafazor.pdf
- https://cdn.shopify.com/s/files/1/0438/2156/4066/files/gajajisejabasusejasodiw.pdf
- https://cdn.shopify.com/s/files/1/0432/8954/2809/files/relatrio_de_auditoria_independente.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_off00005a85.bin68ae1c79a46d098e7fe8793d61d8b20fd308d5199c66536f2bfb0f4c2d4f4159 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A85 | 5780 bytes |
font_01_sfnt_off00006e0c.bin8af6224ccedebd817d595994d538d8aa7b7dd1295b6935290f869b5ac5165306 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E0C | 14208 bytes |
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