Analysis
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max time kernel
298s -
max time network
299s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
01-06-2024 16:29
Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win10-20240404-en
Behavioral task
behavioral2
Sample
Client-built.exe
Resource
win10v2004-20240426-en
General
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Target
Client-built.exe
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Size
348KB
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MD5
0b7139d2d35eb6fb4638ec14b469df7e
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SHA1
5b3644a8be1e3ef885b5809b857142295ed2a4d1
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SHA256
947ecae6beac19b2fe2154f68940462655843cd5f36db14c0ab0b57cff623138
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SHA512
84ae5d2017f268a1249ab1346de9ebda1ab41621b790ecd24cc75df95e9d8415720395b022d4f367819eda642b19a42f31bf50b87a4d980237471b6dcb1041c9
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SSDEEP
6144:0jEHwNHJsa2gKMRQDbRFunXCpsIqlfoF:Cxpsa8W6uXC3qRO
Malware Config
Extracted
quasar
1.3.0.0
Deadly
uk2.localto.net:3955
QSR_MUTEX_Kpy5UOokQcRvJFzawH
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encryption_key
42mkSeUsHVtyogVkUtuz
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install_name
$dead-Client.exe
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log_directory
$dead-Logs
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reconnect_delay
3000
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startup_key
Powershell
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subdirectory
$dead-deadly2
Signatures
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Quasar payload 2 IoCs
Processes:
resource yara_rule behavioral3/memory/904-1-0x0000000000420000-0x000000000047E000-memory.dmp family_quasar C:\Users\Admin\AppData\Roaming\$dead-deadly2\$dead-Client.exe family_quasar -
Executes dropped EXE 1 IoCs
Processes:
$dead-Client.exepid process 2692 $dead-Client.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 1 ip-api.com -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 1448 schtasks.exe 1576 schtasks.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
Client-built.exe$dead-Client.exedescription pid process Token: SeDebugPrivilege 904 Client-built.exe Token: SeDebugPrivilege 2692 $dead-Client.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
$dead-Client.exepid process 2692 $dead-Client.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
Client-built.exe$dead-Client.exedescription pid process target process PID 904 wrote to memory of 1448 904 Client-built.exe schtasks.exe PID 904 wrote to memory of 1448 904 Client-built.exe schtasks.exe PID 904 wrote to memory of 1448 904 Client-built.exe schtasks.exe PID 904 wrote to memory of 2692 904 Client-built.exe $dead-Client.exe PID 904 wrote to memory of 2692 904 Client-built.exe $dead-Client.exe PID 904 wrote to memory of 2692 904 Client-built.exe $dead-Client.exe PID 2692 wrote to memory of 1576 2692 $dead-Client.exe schtasks.exe PID 2692 wrote to memory of 1576 2692 $dead-Client.exe schtasks.exe PID 2692 wrote to memory of 1576 2692 $dead-Client.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Client-built.exe"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "Powershell" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\Client-built.exe" /rl HIGHEST /f2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Roaming\$dead-deadly2\$dead-Client.exe"C:\Users\Admin\AppData\Roaming\$dead-deadly2\$dead-Client.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "Powershell" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\$dead-deadly2\$dead-Client.exe" /rl HIGHEST /f3⤵
- Creates scheduled task(s)
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Roaming\$dead-deadly2\$dead-Client.exeFilesize
348KB
MD50b7139d2d35eb6fb4638ec14b469df7e
SHA15b3644a8be1e3ef885b5809b857142295ed2a4d1
SHA256947ecae6beac19b2fe2154f68940462655843cd5f36db14c0ab0b57cff623138
SHA51284ae5d2017f268a1249ab1346de9ebda1ab41621b790ecd24cc75df95e9d8415720395b022d4f367819eda642b19a42f31bf50b87a4d980237471b6dcb1041c9
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memory/904-6-0x0000000005D90000-0x0000000005DA2000-memory.dmpFilesize
72KB
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memory/904-1-0x0000000000420000-0x000000000047E000-memory.dmpFilesize
376KB
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memory/904-3-0x0000000004FB0000-0x0000000005042000-memory.dmpFilesize
584KB
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memory/904-4-0x0000000074620000-0x0000000074DD1000-memory.dmpFilesize
7.7MB
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memory/904-5-0x0000000004F30000-0x0000000004F96000-memory.dmpFilesize
408KB
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memory/904-0-0x000000007462E000-0x000000007462F000-memory.dmpFilesize
4KB
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memory/904-7-0x00000000062E0000-0x000000000631C000-memory.dmpFilesize
240KB
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memory/904-2-0x0000000005560000-0x0000000005B06000-memory.dmpFilesize
5.6MB
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memory/904-15-0x0000000074620000-0x0000000074DD1000-memory.dmpFilesize
7.7MB
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memory/2692-14-0x0000000074620000-0x0000000074DD1000-memory.dmpFilesize
7.7MB
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memory/2692-16-0x0000000074620000-0x0000000074DD1000-memory.dmpFilesize
7.7MB
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memory/2692-18-0x0000000006D90000-0x0000000006D9A000-memory.dmpFilesize
40KB
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memory/2692-19-0x0000000074620000-0x0000000074DD1000-memory.dmpFilesize
7.7MB
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memory/2692-20-0x0000000074620000-0x0000000074DD1000-memory.dmpFilesize
7.7MB