MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a significant number of embedded links, many of which point to a redirector service (ttraff.ru) known for malicious activity. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the same URL found in the heuristics, suggesting a deliberate attempt to lure users to malicious content. No scripts were extracted, but the PDF structure itself is used for malicious redirection.
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=aashto+lrfd+bridge+design+specifications+7th+pdf
- http://files.chinadynastybeamsville.com/uploads/1/3/1/0/131070846/sipigiro_xesejeso_nuvadopatuwazo_kolag.pdf
- http://files.heartsonghomestead.com/uploads/1/3/1/4/131453177/bafaxirige_xudipawofowo_kokibolo.pdf
- http://files.alliguem.com/uploads/1/3/0/9/130969059/mivifogogawolopeza.pdf
- https://cdn.shopify.com/s/files/1/0430/7353/6149/files/sixuraketubasuxale.pdf
- https://cdn.shopify.com/s/files/1/0431/5168/7848/files/gojefetatopibetopitadavol.pdf
- https://cdn.shopify.com/s/files/1/0431/5840/5280/files/39504812648.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fejatomamegebuwugibuvu.pdf
- https://cdn.shopify.com/s/files/1/0434/9722/6402/files/92851887690.pdf
- https://cdn.shopify.com/s/files/1/0431/1079/3370/files/lewuzixefina.pdf
- https://cdn.shopify.com/s/files/1/0436/6968/4377/files/audit_number_tx_dl.pdf
- https://cdn.shopify.com/s/files/1/0431/5018/0512/files/23859514030.pdf
- https://cdn.shopify.com/s/files/1/0432/7745/1428/files/19038382300.pdf
- https://cdn.shopify.com/s/files/1/0432/8852/7006/files/witcher_3_all_gwent_cards.pdf
- https://cdn.shopify.com/s/files/1/0428/4180/0860/files/present_perfect_simple_already_yet_just_exercises.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_off00005bac.bin15eeef60cfabb2019d3414525d5d742be47b03cee3a9ef1ef4e06e72a42500ed |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5BAC | 5628 bytes |
font_01_sfnt_off00006ecb.bin2128a8ffa8b5f4db8b1cd9fa3558b50e0f40264068fa355c3c661ee5873353c4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6ECB | 10288 bytes |
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