Analysis
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max time kernel
129s -
max time network
306s -
platform
windows10-1703_x64 -
resource
win10-20240611-en -
resource tags
arch:x64arch:x86image:win10-20240611-enlocale:en-usos:windows10-1703-x64system -
submitted
04-07-2024 22:43
Static task
static1
Behavioral task
behavioral1
Sample
a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe
Resource
win7-20240611-en
General
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Target
a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe
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Size
4.3MB
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MD5
67cef2b94174d0883a8e8b9ad9c217c7
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SHA1
d674a6454b03d5190ea685112e68a6604eabfc39
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SHA256
a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7
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SHA512
bd335514641c23f96063c92783bcc2e607c7765705aafa2e742b631c102c08704b1bc77ba61dce7f2267abd5e0e4a30653a50179f86689ecf348f5eb0057ea3c
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SSDEEP
49152:WgMCMqzvDxEHJKquC8nlPCx0jdt8not+bgZV014po/8QNT9Fr1:wGdlbInoM0bBO5H
Malware Config
Extracted
vidar
https://t.me/g067n
https://steamcommunity.com/profiles/76561199707802586
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0
Extracted
lumma
https://civilizzzationo.shop/api
Signatures
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Detect Vidar Stealer 3 IoCs
Processes:
resource yara_rule behavioral2/memory/2664-68-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2664-66-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2664-90-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
CFBAKKJDBK.exepid process 164 CFBAKKJDBK.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of SetThreadContext 2 IoCs
Processes:
a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exeCFBAKKJDBK.exedescription pid process target process PID 1548 set thread context of 2664 1548 a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe MSBuild.exe PID 164 set thread context of 4860 164 CFBAKKJDBK.exe RegAsm.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 4164 164 WerFault.exe CFBAKKJDBK.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
MSBuild.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 MSBuild.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString MSBuild.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 4300 timeout.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
Processes:
MSBuild.exeRegAsm.exepid process 2664 MSBuild.exe 2664 MSBuild.exe 2664 MSBuild.exe 2664 MSBuild.exe 2664 MSBuild.exe 2664 MSBuild.exe 2664 MSBuild.exe 2664 MSBuild.exe 4860 RegAsm.exe 4860 RegAsm.exe 4860 RegAsm.exe 4860 RegAsm.exe 2664 MSBuild.exe 2664 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exedescription pid process Token: SeDebugPrivilege 1548 a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe -
Suspicious use of WriteProcessMemory 27 IoCs
Processes:
a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exeMSBuild.exeCFBAKKJDBK.execmd.exedescription pid process target process PID 1548 wrote to memory of 2664 1548 a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe MSBuild.exe PID 1548 wrote to memory of 2664 1548 a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe MSBuild.exe PID 1548 wrote to memory of 2664 1548 a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe MSBuild.exe PID 1548 wrote to memory of 2664 1548 a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe MSBuild.exe PID 1548 wrote to memory of 2664 1548 a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe MSBuild.exe PID 1548 wrote to memory of 2664 1548 a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe MSBuild.exe PID 1548 wrote to memory of 2664 1548 a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe MSBuild.exe PID 1548 wrote to memory of 2664 1548 a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe MSBuild.exe PID 1548 wrote to memory of 2664 1548 a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe MSBuild.exe PID 2664 wrote to memory of 164 2664 MSBuild.exe CFBAKKJDBK.exe PID 2664 wrote to memory of 164 2664 MSBuild.exe CFBAKKJDBK.exe PID 2664 wrote to memory of 164 2664 MSBuild.exe CFBAKKJDBK.exe PID 164 wrote to memory of 4860 164 CFBAKKJDBK.exe RegAsm.exe PID 164 wrote to memory of 4860 164 CFBAKKJDBK.exe RegAsm.exe PID 164 wrote to memory of 4860 164 CFBAKKJDBK.exe RegAsm.exe PID 164 wrote to memory of 4860 164 CFBAKKJDBK.exe RegAsm.exe PID 164 wrote to memory of 4860 164 CFBAKKJDBK.exe RegAsm.exe PID 164 wrote to memory of 4860 164 CFBAKKJDBK.exe RegAsm.exe PID 164 wrote to memory of 4860 164 CFBAKKJDBK.exe RegAsm.exe PID 164 wrote to memory of 4860 164 CFBAKKJDBK.exe RegAsm.exe PID 164 wrote to memory of 4860 164 CFBAKKJDBK.exe RegAsm.exe PID 2664 wrote to memory of 4800 2664 MSBuild.exe cmd.exe PID 2664 wrote to memory of 4800 2664 MSBuild.exe cmd.exe PID 2664 wrote to memory of 4800 2664 MSBuild.exe cmd.exe PID 4800 wrote to memory of 4300 4800 cmd.exe timeout.exe PID 4800 wrote to memory of 4300 4800 cmd.exe timeout.exe PID 4800 wrote to memory of 4300 4800 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe"C:\Users\Admin\AppData\Local\Temp\a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1548 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"2⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2664 -
C:\ProgramData\CFBAKKJDBK.exe"C:\ProgramData\CFBAKKJDBK.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:164 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"4⤵
- Suspicious behavior: EnumeratesProcesses
PID:4860 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 164 -s 2724⤵
- Program crash
PID:4164 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\EGHJKJKKJDHI" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:4800 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:4300
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
937KB
MD5168c5908924803d268d26965c32a5620
SHA19e0e2dc9c7e931c4ee860c32d83711c433f7b1a3
SHA2562fd72d0d0fbc053a53adee5d9ec6cffde3fb5a3c6ba0c0490e24552b264d5449
SHA512749f0e4da8d6fde35b53e769b0b594c2e63835f970eedc54c8c15889863811b5fb296650ae9f5e255bafdd4b942ad3434a60c48e05f1283820c378d30645f1c1