Analysis
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max time kernel
93s -
max time network
124s -
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 22:45
Static task
static1
Behavioral task
behavioral1
Sample
6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exe
Resource
win10v2004-20240426-en
General
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Target
6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exe
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Size
1.9MB
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MD5
3a760aed3f905fad061bc76c8a65f5bb
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SHA1
e723ac950e6f553702cc7281b707d31f86b8db54
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SHA256
6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4
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SHA512
ad71c45ed493b4001a8bf9c9c99c45cda1e5813518492f75b65d18bb7f4afd50a6ec1fe9629b1e5e64bb29b3f566e0787d356927721338f98fa11f2a3bd59bb2
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SSDEEP
49152:CdKfTn6vWJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnltIuoITsdZ
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/4204-3-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4204-7-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4204-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4748-8-0x0000000004060000-0x00000000041A9000-memory.dmp family_vidar_v7 behavioral1/memory/4204-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4204-18-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4204-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4204-36-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4204-52-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4204-53-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4204-64-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4204-65-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4204-66-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4204-67-0x0000000000400000-0x0000000000646000-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:
kat3C1E.tmpdescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation kat3C1E.tmp -
Executes dropped EXE 1 IoCs
Processes:
kat3C1E.tmppid process 4204 kat3C1E.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:
6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exedescription pid process target process PID 4748 set thread context of 4204 4748 6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exe kat3C1E.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:
kat3C1E.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat3C1E.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 3444 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat3C1E.tmppid process 4204 kat3C1E.tmp 4204 kat3C1E.tmp 4204 kat3C1E.tmp 4204 kat3C1E.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exekat3C1E.tmpcmd.exedescription pid process target process PID 4748 wrote to memory of 4204 4748 6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exe kat3C1E.tmp PID 4748 wrote to memory of 4204 4748 6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exe kat3C1E.tmp PID 4748 wrote to memory of 4204 4748 6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exe kat3C1E.tmp PID 4748 wrote to memory of 4204 4748 6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exe kat3C1E.tmp PID 4748 wrote to memory of 4204 4748 6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exe kat3C1E.tmp PID 4748 wrote to memory of 4204 4748 6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exe kat3C1E.tmp PID 4748 wrote to memory of 4204 4748 6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exe kat3C1E.tmp PID 4748 wrote to memory of 4204 4748 6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exe kat3C1E.tmp PID 4204 wrote to memory of 4092 4204 kat3C1E.tmp cmd.exe PID 4204 wrote to memory of 4092 4204 kat3C1E.tmp cmd.exe PID 4204 wrote to memory of 4092 4204 kat3C1E.tmp cmd.exe PID 4092 wrote to memory of 3444 4092 cmd.exe timeout.exe PID 4092 wrote to memory of 3444 4092 cmd.exe timeout.exe PID 4092 wrote to memory of 3444 4092 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exe"C:\Users\Admin\AppData\Local\Temp\6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4748 -
C:\Users\Admin\AppData\Local\Temp\kat3C1E.tmpC:\Users\Admin\AppData\Local\Temp\kat3C1E.tmp2⤵
- Checks computer location settings
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4204 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat3C1E.tmp" & rd /s /q "C:\ProgramData\HJEHIJEBKEBF" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:4092 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:3444
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat3C1E.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/4204-18-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4204-36-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4204-20-0x000000001B810000-0x000000001BA6F000-memory.dmpFilesize
2.4MB
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memory/4204-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4204-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4204-3-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4204-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4204-65-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4204-7-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4204-67-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4204-66-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4204-52-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4204-53-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4204-64-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4748-8-0x0000000004060000-0x00000000041A9000-memory.dmpFilesize
1.3MB
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memory/4748-0-0x00000000007C0000-0x00000000007C1000-memory.dmpFilesize
4KB
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memory/4748-10-0x0000000000400000-0x00000000005EC000-memory.dmpFilesize
1.9MB