MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF was flagged as malicious by an ML classifier and contains a critical heuristic indicating a link to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL that leads to the redirector. The presence of numerous external PDF links suggests a link farm or SEO poisoning attempt to distribute malicious 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.ru/pify?keyword=international+law+of+armed+conflict+pdf
- http://files.kufunza.com.au/uploads/1/3/0/8/130874250/894553.pdf
- http://files.sistersofhope.us/uploads/1/3/1/6/131637773/d3f277d1f7f.pdf
- http://pugipata.jeffersonacademypto.com/uploads/1/3/0/8/130814168/tarobijimuraf.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dewefezagabujam.pdf
- https://cdn.shopify.com/s/files/1/0430/3480/4375/files/43007610782.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xewujixamugovaginebutomo.pdf
- https://cdn.shopify.com/s/files/1/0428/2207/4534/files/giwusimab.pdf
- https://cdn.shopify.com/s/files/1/0434/3998/0710/files/engineering_leveling_guide_classic.pdf
- https://cdn.shopify.com/s/files/1/0427/9474/6023/files/dojubudox.pdf
- https://cdn.shopify.com/s/files/1/0432/9108/2918/files/xuboniletunujobuv.pdf
- https://cdn.shopify.com/s/files/1/0428/6241/1942/files/28466632989.pdf
- https://cdn.shopify.com/s/files/1/0432/8531/5739/files/jasixebuwunefasurekutitag.pdf
- https://cdn.shopify.com/s/files/1/0435/1072/6815/files/wamipamonesuwa.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_off00011f0b.bin2bb9e87f8d33feaa70e7124016326c77d76c9c03f2389af8b9f5c5ee70428aa3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F0B | 5152 bytes |
font_01_sfnt_off0001308f.bin0515f53ff49fb35c34076d9200007869c8677f50a5c7887948cf16c4150caa5c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1308F | 10236 bytes |
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