General
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Target
25401f743a334574c237661529ed4c909a81358599e121f8cf66125584eef073
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Size
695KB
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Sample
230404-d4j85acf75
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MD5
250a507e12bf610b1667f7c984be7d2c
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SHA1
4ac677de42d0ced99255af854caa221a89f31283
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SHA256
25401f743a334574c237661529ed4c909a81358599e121f8cf66125584eef073
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SHA512
b1743730be11011b40e0d78850921b4fff6a1d3e5cb09ddfb72c5420800c7386c82b5ee544dd86edf0606ab7ce6339889507b6b45ab2fc132f27da91cc7d9e53
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SSDEEP
12288:FM8UcTZWljZW3yi4kObiYbeBZkU/F9dlfhKNq54fIZA2OT/AaV13Z1RBumwcH:F1h9WldW3Ok0eBZkU/NbKNqcIZZCd1l
Static task
static1
Behavioral task
behavioral1
Sample
25401f743a334574c237661529ed4c909a81358599e121f8cf66125584eef073.exe
Resource
win10v2004-20230220-en
Malware Config
Extracted
djvu
http://zexeq.com/test2/get.php
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extension
.nifr
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offline_id
FCP2fiITr4rryFhFBnA59GMgwES5CunmcbPc76t1
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payload_url
http://uaery.top/dl/build2.exe
http://zexeq.com/files/1/build3.exe
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ransomnote
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Extracted
vidar
3.2
5df88deb5dde677ba658b77ad5f60248
https://steamcommunity.com/profiles/76561199489580435
https://t.me/tabootalks
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profile_id_v2
5df88deb5dde677ba658b77ad5f60248
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user_agent
Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36 OPR/91.0.4516.79
Targets
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Target
25401f743a334574c237661529ed4c909a81358599e121f8cf66125584eef073
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Size
695KB
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MD5
250a507e12bf610b1667f7c984be7d2c
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SHA1
4ac677de42d0ced99255af854caa221a89f31283
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SHA256
25401f743a334574c237661529ed4c909a81358599e121f8cf66125584eef073
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SHA512
b1743730be11011b40e0d78850921b4fff6a1d3e5cb09ddfb72c5420800c7386c82b5ee544dd86edf0606ab7ce6339889507b6b45ab2fc132f27da91cc7d9e53
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SSDEEP
12288:FM8UcTZWljZW3yi4kObiYbeBZkU/F9dlfhKNq54fIZA2OT/AaV13Z1RBumwcH:F1h9WldW3Ok0eBZkU/NbKNqcIZZCd1l
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Detected Djvu ransomware
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Downloads MZ/PE file
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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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Loads dropped DLL
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Modifies file permissions
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Accesses cryptocurrency files/wallets, possible credential harvesting
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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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