General
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Target
0d2fb358331644dc4c31761ef5c140e576fccec3554c60014a52ecbf964f6b03
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Size
847KB
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Sample
230424-plk89abg37
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MD5
f08edf8ca763966b609759256ce3f792
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SHA1
25764bb37ecbbfcbdd1f833fb534ca5289f224ba
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SHA256
0d2fb358331644dc4c31761ef5c140e576fccec3554c60014a52ecbf964f6b03
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SHA512
a6b49518bf8a686cb3fa08727f1c62d4e135b7ace37fe846d3b7ee21ee845c6335e9aebbbf28d4ebbdd7d9b78d235832c9a79566be995fff8e3e661b28c30a2d
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SSDEEP
24576:LXeZC5GpdoIJUrjP9U2FKSFVI5mF11WZrA6Dssx:LXdG02UO+KSFn11Dojx
Static task
static1
Behavioral task
behavioral1
Sample
0d2fb358331644dc4c31761ef5c140e576fccec3554c60014a52ecbf964f6b03.exe
Resource
win10v2004-20230220-en
Malware Config
Extracted
djvu
http://zexeq.com/raud/get.php
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extension
.coza
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offline_id
O8Ao46dcCReRPC4I1PGMYsRFFc9WI5eOp0O3MFt1
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payload_url
http://colisumy.com/dl/build2.exe
http://zexeq.com/files/1/build3.exe
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ransomnote
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Extracted
vidar
3.5
bf58e1879f88b222ba2391682babf9d8
https://steamcommunity.com/profiles/76561199497218285
https://t.me/tg_duckworld
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profile_id_v2
bf58e1879f88b222ba2391682babf9d8
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user_agent
Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36 Vivaldi/3.7
Targets
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Target
0d2fb358331644dc4c31761ef5c140e576fccec3554c60014a52ecbf964f6b03
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Size
847KB
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MD5
f08edf8ca763966b609759256ce3f792
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SHA1
25764bb37ecbbfcbdd1f833fb534ca5289f224ba
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SHA256
0d2fb358331644dc4c31761ef5c140e576fccec3554c60014a52ecbf964f6b03
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SHA512
a6b49518bf8a686cb3fa08727f1c62d4e135b7ace37fe846d3b7ee21ee845c6335e9aebbbf28d4ebbdd7d9b78d235832c9a79566be995fff8e3e661b28c30a2d
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SSDEEP
24576:LXeZC5GpdoIJUrjP9U2FKSFVI5mF11WZrA6Dssx:LXdG02UO+KSFn11Dojx
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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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