MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, with one pointing to a known malicious redirector infrastructure at `ttraff.ru`. The document body, though partially corrupted, suggests an attempt to disguise these links as educational material. The ML classifier strongly flagged this PDF as malicious, and the presence of a link farm further supports a malicious intent to redirect users to potentially harmful sites.
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=honors+biology+dihybrid+cross+worksheet
- http://files.armandozumaya.com/uploads/1/3/1/4/131454389/vajebujumijipufuxo.pdf
- http://files.wordsplusthoughts.com/uploads/1/3/1/1/131164351/liwovemovagonam_xafon_gabenanadigulu_xupakigefasofib.pdf
- http://files.katherinemarieprice.com/uploads/1/3/2/6/132681558/5372184.pdf
- https://cdn.shopify.com/s/files/1/0431/8763/4338/files/63049174939.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/refitapobofubogiwimubik.pdf
- https://cdn.shopify.com/s/files/1/0440/5886/9910/files/callan_method_english_books.pdf
- https://cdn.shopify.com/s/files/1/0430/2825/0781/files/4343624372.pdf
- https://cdn.shopify.com/s/files/1/0434/3883/3816/files/denofawumajezoxowevilalo.pdf
- https://cdn.shopify.com/s/files/1/0437/8260/2904/files/desaz.pdf
- https://cdn.shopify.com/s/files/1/0432/3137/9624/files/95782393860.pdf
- https://cdn.shopify.com/s/files/1/0440/2262/8502/files/arduino_duemilanove_manual.pdf
- https://cdn.shopify.com/s/files/1/0430/4211/1641/files/fetadajefatizafomad.pdf
- https://cdn.shopify.com/s/files/1/0430/0580/4698/files/watch_riverdale_season_2_episode_guide.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/47184882359.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_off000047ba.bin153a420853463a400afbace7265b12763ee2187d8d6bcba43dbceade95fffc85 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x47BA | 5348 bytes |
font_01_sfnt_off000059f2.bin328df645b27e929dca6fed82913f5c3c41f1287304cc5916117416fe9a7dc02b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x59F2 | 9632 bytes |
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