Analysis
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max time kernel
136s -
max time network
141s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
22-05-2024 22:57
Static task
static1
Behavioral task
behavioral1
Sample
64ed74aeb1ec4ac688fc8223e3c79b54f7342cd62c2c2e1d738c40bf8371f2e8.exe
Resource
win10v2004-20240426-en
General
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Target
64ed74aeb1ec4ac688fc8223e3c79b54f7342cd62c2c2e1d738c40bf8371f2e8.exe
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Size
2.0MB
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MD5
fba1d001ed601aa71c5b71f99cabe7ee
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SHA1
7f2c7091e33b32aed82543204bd387fa34e097cb
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SHA256
64ed74aeb1ec4ac688fc8223e3c79b54f7342cd62c2c2e1d738c40bf8371f2e8
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SHA512
0452eb17cf5727237fbcb97d5a66a6b13edbb22d64b5794b2278513cb8bc8bdaa816a94dac3d6a2fdcd3181237dbedc211ab7168220a574b25a072f52640ec6b
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SSDEEP
49152:7QzHt472D3JtTF+TxMoxc1TU+j+dAzGwlrh:7QzHt9tIuoITsdZ
Malware Config
Extracted
stealc
Signatures
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Detect Vidar Stealer 13 IoCs
Processes:
resource yara_rule behavioral1/memory/572-2-0x0000000004120000-0x0000000004269000-memory.dmp family_vidar_v7 behavioral1/memory/2252-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2252-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2252-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2252-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2252-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2252-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2252-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2252-49-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2252-50-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2252-61-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2252-62-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2252-65-0x0000000000400000-0x0000000000646000-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:
kat69F5.tmpdescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation kat69F5.tmp -
Executes dropped EXE 1 IoCs
Processes:
kat69F5.tmppid process 2252 kat69F5.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:
64ed74aeb1ec4ac688fc8223e3c79b54f7342cd62c2c2e1d738c40bf8371f2e8.exedescription pid process target process PID 572 set thread context of 2252 572 64ed74aeb1ec4ac688fc8223e3c79b54f7342cd62c2c2e1d738c40bf8371f2e8.exe kat69F5.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:
kat69F5.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat69F5.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 3148 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat69F5.tmppid process 2252 kat69F5.tmp 2252 kat69F5.tmp 2252 kat69F5.tmp 2252 kat69F5.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
64ed74aeb1ec4ac688fc8223e3c79b54f7342cd62c2c2e1d738c40bf8371f2e8.exekat69F5.tmpcmd.exedescription pid process target process PID 572 wrote to memory of 2252 572 64ed74aeb1ec4ac688fc8223e3c79b54f7342cd62c2c2e1d738c40bf8371f2e8.exe kat69F5.tmp PID 572 wrote to memory of 2252 572 64ed74aeb1ec4ac688fc8223e3c79b54f7342cd62c2c2e1d738c40bf8371f2e8.exe kat69F5.tmp PID 572 wrote to memory of 2252 572 64ed74aeb1ec4ac688fc8223e3c79b54f7342cd62c2c2e1d738c40bf8371f2e8.exe kat69F5.tmp PID 572 wrote to memory of 2252 572 64ed74aeb1ec4ac688fc8223e3c79b54f7342cd62c2c2e1d738c40bf8371f2e8.exe kat69F5.tmp PID 572 wrote to memory of 2252 572 64ed74aeb1ec4ac688fc8223e3c79b54f7342cd62c2c2e1d738c40bf8371f2e8.exe kat69F5.tmp PID 572 wrote to memory of 2252 572 64ed74aeb1ec4ac688fc8223e3c79b54f7342cd62c2c2e1d738c40bf8371f2e8.exe kat69F5.tmp PID 572 wrote to memory of 2252 572 64ed74aeb1ec4ac688fc8223e3c79b54f7342cd62c2c2e1d738c40bf8371f2e8.exe kat69F5.tmp PID 572 wrote to memory of 2252 572 64ed74aeb1ec4ac688fc8223e3c79b54f7342cd62c2c2e1d738c40bf8371f2e8.exe kat69F5.tmp PID 2252 wrote to memory of 1712 2252 kat69F5.tmp cmd.exe PID 2252 wrote to memory of 1712 2252 kat69F5.tmp cmd.exe PID 2252 wrote to memory of 1712 2252 kat69F5.tmp cmd.exe PID 1712 wrote to memory of 3148 1712 cmd.exe timeout.exe PID 1712 wrote to memory of 3148 1712 cmd.exe timeout.exe PID 1712 wrote to memory of 3148 1712 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\64ed74aeb1ec4ac688fc8223e3c79b54f7342cd62c2c2e1d738c40bf8371f2e8.exe"C:\Users\Admin\AppData\Local\Temp\64ed74aeb1ec4ac688fc8223e3c79b54f7342cd62c2c2e1d738c40bf8371f2e8.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:572 -
C:\Users\Admin\AppData\Local\Temp\kat69F5.tmpC:\Users\Admin\AppData\Local\Temp\kat69F5.tmp2⤵
- Checks computer location settings
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2252 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat69F5.tmp" & rd /s /q "C:\ProgramData\BKECBAKFBGDG" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:1712 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:3148
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat69F5.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/572-10-0x0000000000400000-0x0000000000601000-memory.dmpFilesize
2.0MB
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memory/572-2-0x0000000004120000-0x0000000004269000-memory.dmpFilesize
1.3MB
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memory/572-0-0x00000000007F0000-0x00000000007F1000-memory.dmpFilesize
4KB
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memory/2252-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2252-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2252-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2252-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2252-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2252-17-0x000000001B740000-0x000000001B99F000-memory.dmpFilesize
2.4MB
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memory/2252-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2252-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2252-49-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2252-50-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2252-61-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2252-62-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2252-65-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB