General
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Target
3d557b2b7692818e771d9f0dff1eeab3a5d309b5b627e913e88cbc1d2318d0a8.exe
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Size
702KB
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Sample
240618-t3h8fa1fme
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MD5
47ef84920598e68e97ad8b54a1ee0b3f
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SHA1
b7aeccf0a7e118dd7bb822dd353129e8324e76a5
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SHA256
3d557b2b7692818e771d9f0dff1eeab3a5d309b5b627e913e88cbc1d2318d0a8
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SHA512
8acf513af3064cbc6e87d28651b88bd5959068983a585853f6bc678793b0dc930bbfd8ac3ed1c908f3d78e7bea6135400d911a0e14e17434f594e50e680b375a
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SSDEEP
12288:+NffGiSE400a6/ctd8jCg1wy3c2UlyF/nZ9aQ5GxFF4E69zWRx:+FepEGWg1yPkF/nZ9HoE9w
Malware Config
Extracted
djvu
http://cajgtus.com/raud/get.php
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extension
.baaa
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offline_id
BmydHWxftXsUWlPOfJ63XT7FvAyu6D9OzaEHjdt1
- payload_url
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ransomnote
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Targets
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Target
3d557b2b7692818e771d9f0dff1eeab3a5d309b5b627e913e88cbc1d2318d0a8.exe
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Size
702KB
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MD5
47ef84920598e68e97ad8b54a1ee0b3f
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SHA1
b7aeccf0a7e118dd7bb822dd353129e8324e76a5
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SHA256
3d557b2b7692818e771d9f0dff1eeab3a5d309b5b627e913e88cbc1d2318d0a8
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SHA512
8acf513af3064cbc6e87d28651b88bd5959068983a585853f6bc678793b0dc930bbfd8ac3ed1c908f3d78e7bea6135400d911a0e14e17434f594e50e680b375a
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SSDEEP
12288:+NffGiSE400a6/ctd8jCg1wy3c2UlyF/nZ9aQ5GxFF4E69zWRx:+FepEGWg1yPkF/nZ9HoE9w
Score10/10-
Detected Djvu ransomware
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Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Renames multiple (208) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Modifies file permissions
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Adds Run key to start application
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Suspicious use of SetThreadContext
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