MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a link farm and a direct link to a known malicious redirector, disguised as an employment letter template. The primary malicious URL is https://ttraff.ru/pify?keyword=introduction+letter+for+employment+template, which likely leads to further malicious content. The presence of numerous other PDF links, many hosted on Shopify, suggests a broad SEO poisoning or link farm strategy to distribute the malicious payload.
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=introduction+letter+for+employment+template
- http://jesepaj.nannies-pearls.net/uploads/1/3/0/8/130814328/famoruviwefoke.pdf
- http://jerupepis.miraclepest.com/uploads/1/3/0/7/130738706/ninezadixuvipijinen.pdf
- http://foxobasu.southfloridapsychology.com/uploads/1/3/2/8/132816202/varerodirapusim-putizifo.pdf
- http://files.forummigrationandpeace.org/uploads/1/3/2/7/132740595/maxuxunuxigukevetuv.pdf
- https://cdn.shopify.com/s/files/1/0430/9575/2858/files/belajar_bahasa_vietnam.pdf
- https://cdn.shopify.com/s/files/1/0431/1249/7312/files/birthday_card_maker_software_free.pdf
- https://cdn.shopify.com/s/files/1/0451/8959/5287/files/blade_banshee_breeding_guide.pdf
- https://cdn.shopify.com/s/files/1/0431/7678/8117/files/ponuxoxagulufotuxito.pdf
- https://cdn.shopify.com/s/files/1/0438/2405/4429/files/fafogixubomebu.pdf
- https://cdn.shopify.com/s/files/1/0432/0106/9220/files/zomubidinazekebog.pdf
- https://cdn.shopify.com/s/files/1/0434/6370/4729/files/iptv_stalker_plus.pdf
- https://cdn.shopify.com/s/files/1/0431/6784/2459/files/zevedivamematexomipusa.pdf
- https://cdn.shopify.com/s/files/1/0431/8606/1480/files/78884645828.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_off00006da6.bin240069ecf21a1c25501cf2c652640d65fb9f4bf0b9c43182d35b5cc4816706f4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6DA6 | 5160 bytes |
font_01_sfnt_off00007f26.binc9f9f3ec6d1ef7c4108bc7965872c4198fe86f53dd64b7c124f4a1f33a0b25fb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F26 | 10136 bytes |
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