MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to external resources, indicating a link farm. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=exothermic+and+endothermic+reactions+worksheet+ks3+tes'. The ML classifier also strongly indicated maliciousness. The document body appears to be corrupted or obfuscated, but the presence of URLs suggests a phishing or redirection attempt.
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=exothermic+and+endothermic+reactions+worksheet+ks3+tes
- http://gidol.rosserwoodlandsrec.com/uploads/1/3/1/6/131637136/2592e170b4.pdf
- http://files.sooyunjun.com/uploads/1/3/2/6/132696330/ruwidizepikav-wekavijod-buraberugig-mexilulamere.pdf
- https://cdn.shopify.com/s/files/1/0431/6990/6854/files/dutujoxakokemesevubakewa.pdf
- https://cdn.shopify.com/s/files/1/0434/2480/9122/files/akeelah_and_the_bee_soundtrack_free.pdf
- https://cdn.shopify.com/s/files/1/0432/3311/6315/files/89990139746.pdf
- https://cdn.shopify.com/s/files/1/0428/2961/1171/files/sadija.pdf
- https://cdn.shopify.com/s/files/1/0432/8305/4757/files/dirasotod.pdf
- https://cdn.shopify.com/s/files/1/0430/4447/0945/files/xusoboweg.pdf
- https://cdn.shopify.com/s/files/1/0428/4809/2323/files/recycling_business_plan_in_south_africa.pdf
- https://cdn.shopify.com/s/files/1/0433/5848/6678/files/pataloburagira.pdf
- https://cdn.shopify.com/s/files/1/0432/0319/9138/files/51885882163.pdf
- https://cdn.shopify.com/s/files/1/0447/4188/6103/files/ye_bandhan_to_song_pagalworld.pdf
- https://cdn.shopify.com/s/files/1/0435/5004/8419/files/notukaninapodizaladesijo.pdf
- https://cdn.shopify.com/s/files/1/0436/1319/2349/files/minutik.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/21800621301.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004911.bin25d44ac435b2516050dae94a71e7f8c298560c0b28ef4a547470e00567581be2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4911 | 5492 bytes |
font_01_sfnt_off00005bad.bin48882b6071db0d17b4cb47f691ed34484d64d1f7ed62cd01749380bad42233d3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5BAD | 9280 bytes |
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