General
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Target
81dc124911351f4325272f176aced9cbe877c398202abcb7f043d805b603b522
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Size
718KB
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Sample
230331-smg5rsah86
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MD5
156320ba94b7635871a01745657d08a9
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SHA1
8ab9273e799215132a369097481959294fdc0c36
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SHA256
81dc124911351f4325272f176aced9cbe877c398202abcb7f043d805b603b522
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SHA512
7fb47fa009ca505dd85c0407036f79be254f0bac15dc0951533dc7b091b9c8c7c5cc8aef29b06a5fdc75f3cca79177a9db20af8baaa7192f8ab8e0632100943d
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SSDEEP
12288:OSH5QMbtcd63equo1YlN8i/TBU+RJRVI09cLdJG/f1mFaFI:ZH2Mbo63D6Kq80241ca
Static task
static1
Behavioral task
behavioral1
Sample
81dc124911351f4325272f176aced9cbe877c398202abcb7f043d805b603b522.exe
Resource
win10-20230220-en
Malware Config
Extracted
djvu
http://zexeq.com/test1/get.php
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extension
.jycx
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offline_id
MEMHlobHgXqvmTWaMsLcwGZhDOd00bblO1yevst1
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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
81dc124911351f4325272f176aced9cbe877c398202abcb7f043d805b603b522
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Size
718KB
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MD5
156320ba94b7635871a01745657d08a9
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SHA1
8ab9273e799215132a369097481959294fdc0c36
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SHA256
81dc124911351f4325272f176aced9cbe877c398202abcb7f043d805b603b522
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SHA512
7fb47fa009ca505dd85c0407036f79be254f0bac15dc0951533dc7b091b9c8c7c5cc8aef29b06a5fdc75f3cca79177a9db20af8baaa7192f8ab8e0632100943d
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SSDEEP
12288:OSH5QMbtcd63equo1YlN8i/TBU+RJRVI09cLdJG/f1mFaFI:ZH2Mbo63D6Kq80241ca
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Detected Djvu ransomware
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Downloads MZ/PE file
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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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