Analysis
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max time kernel
77s -
max time network
142s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
27-05-2024 22:24
Static task
static1
Behavioral task
behavioral1
Sample
d0371a2f2ea5e15d587121ef27f7455a032c16a94751df79046397371f942eec.exe
Resource
win10v2004-20240426-en
General
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Target
d0371a2f2ea5e15d587121ef27f7455a032c16a94751df79046397371f942eec.exe
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Size
1.9MB
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MD5
b5e8187adb965b2bfd4f57880ef9ee2f
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SHA1
fb7516511580c16a9006b05cc0971e35a58850bd
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SHA256
d0371a2f2ea5e15d587121ef27f7455a032c16a94751df79046397371f942eec
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SHA512
f9a088175aa81b5b728949f0165ebe575c0b275b99597580c4ea08b08e1fb9ed44a9bd8f3a69ef13a1435d52fc35d5b788ee49d76982c09121550bef473547fa
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SSDEEP
49152:CdKfTn6v6JtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnBtIuoITsdZ
Malware Config
Extracted
stealc
Extracted
vidar
https://steamcommunity.com/profiles/76561199689717899
https://t.me/copterwin
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0
Signatures
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Detect Vidar Stealer 14 IoCs
Processes:
resource yara_rule behavioral1/memory/3516-2-0x0000000004060000-0x00000000041A9000-memory.dmp family_vidar_v7 behavioral1/memory/5100-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5100-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5100-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5100-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5100-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5100-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5100-53-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5100-54-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5100-55-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5100-66-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5100-67-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5100-68-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5100-70-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
kat6C56.tmpdescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation kat6C56.tmp -
Executes dropped EXE 1 IoCs
Processes:
kat6C56.tmppid process 5100 kat6C56.tmp -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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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 1 IoCs
Processes:
d0371a2f2ea5e15d587121ef27f7455a032c16a94751df79046397371f942eec.exedescription pid process target process PID 3516 set thread context of 5100 3516 d0371a2f2ea5e15d587121ef27f7455a032c16a94751df79046397371f942eec.exe kat6C56.tmp -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat6C56.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat6C56.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 3032 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat6C56.tmppid process 5100 kat6C56.tmp 5100 kat6C56.tmp 5100 kat6C56.tmp 5100 kat6C56.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
d0371a2f2ea5e15d587121ef27f7455a032c16a94751df79046397371f942eec.exekat6C56.tmpcmd.exedescription pid process target process PID 3516 wrote to memory of 5100 3516 d0371a2f2ea5e15d587121ef27f7455a032c16a94751df79046397371f942eec.exe kat6C56.tmp PID 3516 wrote to memory of 5100 3516 d0371a2f2ea5e15d587121ef27f7455a032c16a94751df79046397371f942eec.exe kat6C56.tmp PID 3516 wrote to memory of 5100 3516 d0371a2f2ea5e15d587121ef27f7455a032c16a94751df79046397371f942eec.exe kat6C56.tmp PID 3516 wrote to memory of 5100 3516 d0371a2f2ea5e15d587121ef27f7455a032c16a94751df79046397371f942eec.exe kat6C56.tmp PID 3516 wrote to memory of 5100 3516 d0371a2f2ea5e15d587121ef27f7455a032c16a94751df79046397371f942eec.exe kat6C56.tmp PID 3516 wrote to memory of 5100 3516 d0371a2f2ea5e15d587121ef27f7455a032c16a94751df79046397371f942eec.exe kat6C56.tmp PID 3516 wrote to memory of 5100 3516 d0371a2f2ea5e15d587121ef27f7455a032c16a94751df79046397371f942eec.exe kat6C56.tmp PID 3516 wrote to memory of 5100 3516 d0371a2f2ea5e15d587121ef27f7455a032c16a94751df79046397371f942eec.exe kat6C56.tmp PID 5100 wrote to memory of 2352 5100 kat6C56.tmp cmd.exe PID 5100 wrote to memory of 2352 5100 kat6C56.tmp cmd.exe PID 5100 wrote to memory of 2352 5100 kat6C56.tmp cmd.exe PID 2352 wrote to memory of 3032 2352 cmd.exe timeout.exe PID 2352 wrote to memory of 3032 2352 cmd.exe timeout.exe PID 2352 wrote to memory of 3032 2352 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\d0371a2f2ea5e15d587121ef27f7455a032c16a94751df79046397371f942eec.exe"C:\Users\Admin\AppData\Local\Temp\d0371a2f2ea5e15d587121ef27f7455a032c16a94751df79046397371f942eec.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3516 -
C:\Users\Admin\AppData\Local\Temp\kat6C56.tmpC:\Users\Admin\AppData\Local\Temp\kat6C56.tmp2⤵
- Checks computer location settings
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5100 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat6C56.tmp" & rd /s /q "C:\ProgramData\AKKEGDGCGDAK" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:2352 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:3032
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat6C56.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/3516-2-0x0000000004060000-0x00000000041A9000-memory.dmpFilesize
1.3MB
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memory/3516-0-0x00000000008A0000-0x00000000008A1000-memory.dmpFilesize
4KB
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memory/3516-10-0x0000000000400000-0x00000000005EC000-memory.dmpFilesize
1.9MB
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memory/5100-20-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5100-53-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5100-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5100-19-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5100-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5100-22-0x000000001B830000-0x000000001BA8F000-memory.dmpFilesize
2.4MB
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memory/5100-37-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5100-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5100-54-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5100-55-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5100-66-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5100-67-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5100-68-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5100-70-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB