Analysis
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max time kernel
195s -
max time network
299s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system -
submitted
03-06-2024 05:41
Static task
static1
Behavioral task
behavioral1
Sample
8c11d0cbc88564437ed11832cf1399db5cc500407f5319157d5b252a9e633c2c.exe
Resource
win7-20240508-en
General
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Target
8c11d0cbc88564437ed11832cf1399db5cc500407f5319157d5b252a9e633c2c.exe
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Size
2.4MB
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MD5
e3b90cb70891829e9964034d855ee7d9
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SHA1
7029d343f3719716dafbb249fecbea3968450968
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SHA256
8c11d0cbc88564437ed11832cf1399db5cc500407f5319157d5b252a9e633c2c
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SHA512
db03a1ab69bba94051eff26f2fcd5da81b5b289eff17755b61d8cf482529a50eed48a7957ed601b921318605898d74e20cdc8b672692dcf797ef58b3c6f6fa9c
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SSDEEP
49152:wQc81KnB/a/hNT/dhYa8aesY3Ot4N7G/:wDta/hNT/dhn0etD/
Malware Config
Extracted
stealc
Extracted
vidar
https://t.me/ta904ek
https://steamcommunity.com/profiles/76561199695752269
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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 8 IoCs
Processes:
resource yara_rule behavioral2/memory/2304-2-0x0000000003F20000-0x000000000406C000-memory.dmp family_vidar_v7 behavioral2/memory/1372-9-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/1372-10-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/1372-4-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/1372-16-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/1372-17-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/1372-34-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/1372-35-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat6551.tmppid Process 1372 kat6551.tmp -
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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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:
8c11d0cbc88564437ed11832cf1399db5cc500407f5319157d5b252a9e633c2c.exedescription pid Process procid_target PID 2304 set thread context of 1372 2304 8c11d0cbc88564437ed11832cf1399db5cc500407f5319157d5b252a9e633c2c.exe 74 -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat6551.tmpdescription ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat6551.tmp -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat6551.tmppid Process 1372 kat6551.tmp 1372 kat6551.tmp 1372 kat6551.tmp 1372 kat6551.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
8c11d0cbc88564437ed11832cf1399db5cc500407f5319157d5b252a9e633c2c.exedescription pid Process procid_target PID 2304 wrote to memory of 1372 2304 8c11d0cbc88564437ed11832cf1399db5cc500407f5319157d5b252a9e633c2c.exe 74 PID 2304 wrote to memory of 1372 2304 8c11d0cbc88564437ed11832cf1399db5cc500407f5319157d5b252a9e633c2c.exe 74 PID 2304 wrote to memory of 1372 2304 8c11d0cbc88564437ed11832cf1399db5cc500407f5319157d5b252a9e633c2c.exe 74 PID 2304 wrote to memory of 1372 2304 8c11d0cbc88564437ed11832cf1399db5cc500407f5319157d5b252a9e633c2c.exe 74 PID 2304 wrote to memory of 1372 2304 8c11d0cbc88564437ed11832cf1399db5cc500407f5319157d5b252a9e633c2c.exe 74 PID 2304 wrote to memory of 1372 2304 8c11d0cbc88564437ed11832cf1399db5cc500407f5319157d5b252a9e633c2c.exe 74 PID 2304 wrote to memory of 1372 2304 8c11d0cbc88564437ed11832cf1399db5cc500407f5319157d5b252a9e633c2c.exe 74 PID 2304 wrote to memory of 1372 2304 8c11d0cbc88564437ed11832cf1399db5cc500407f5319157d5b252a9e633c2c.exe 74
Processes
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C:\Users\Admin\AppData\Local\Temp\8c11d0cbc88564437ed11832cf1399db5cc500407f5319157d5b252a9e633c2c.exe"C:\Users\Admin\AppData\Local\Temp\8c11d0cbc88564437ed11832cf1399db5cc500407f5319157d5b252a9e633c2c.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2304 -
C:\Users\Admin\AppData\Local\Temp\kat6551.tmpC:\Users\Admin\AppData\Local\Temp\kat6551.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:1372
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f