MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF file contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure at https://ttraff.ru/pify. The document body, though heavily obfuscated, contains references to the same URL and a large number of other PDF links, suggesting a link farm designed to drive traffic to malicious sites. The ML classifier also strongly flagged this PDF as malicious. The primary attack pattern appears to be a lure for users to click on malicious links, likely leading to further compromise.
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=adobe+indesign+magazine+template+free
- http://files.hawerabaptist.org.nz/uploads/1/3/0/7/130739155/2740111.pdf
- http://files.birthto5partnerships.org/uploads/1/3/0/7/130775350/jobezomesabir.pdf
- https://cdn.shopify.com/s/files/1/0433/2240/9125/files/lirizejovekuzefejazozer.pdf
- https://cdn.shopify.com/s/files/1/0439/8222/5566/files/35931195726.pdf
- https://cdn.shopify.com/s/files/1/0429/6825/2565/files/mamukikuzidevolugikare.pdf
- https://cdn.shopify.com/s/files/1/0434/0832/6812/files/kogesifi.pdf
- https://cdn.shopify.com/s/files/1/0433/0625/4494/files/cursive_alphabet_writing_practice_worksheets.pdf
- https://cdn.shopify.com/s/files/1/0430/9372/1255/files/17737392058.pdf
- https://cdn.shopify.com/s/files/1/0430/0242/9593/files/einfache_bruchgleichungen_aufgaben.pdf
- https://cdn.shopify.com/s/files/1/0432/4625/6295/files/zulilex.pdf
- https://cdn.shopify.com/s/files/1/0429/8699/5863/files/tezugasumajulufuvusanaso.pdf
- https://cdn.shopify.com/s/files/1/0439/5086/6590/files/jatefesibegexasejazot.pdf
- https://cdn.shopify.com/s/files/1/0434/7258/4861/files/83533849333.pdf
- https://cdn.shopify.com/s/files/1/0435/4444/5082/files/rolidofapizikaxavifibopi.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_off00005cc6.bin78eac6d57d0d23eb4e6d4eaf19f8731c23e7142e95808bffc3cfbd1228e3d039 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5CC6 | 5540 bytes |
font_01_sfnt_off00006f82.binb1f192db80bc9c4961c86848746ebab8ecaa1e5a7e853da2d6a999891f1ca914 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F82 | 9796 bytes |
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