Analysis
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max time kernel
93s -
max time network
124s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
03-06-2024 05:38
Static task
static1
Behavioral task
behavioral1
Sample
55ae28e1e0118a91a582025d286cdf3b2c911381ea6e3d1ddcb5090c807cdb0a.exe
Resource
win10v2004-20240508-en
General
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Target
55ae28e1e0118a91a582025d286cdf3b2c911381ea6e3d1ddcb5090c807cdb0a.exe
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Size
2.4MB
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MD5
656e40876cc7b4a4710688f586c1ca4c
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SHA1
46af321eb85a500692970a221bdac268c41c7fe5
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SHA256
55ae28e1e0118a91a582025d286cdf3b2c911381ea6e3d1ddcb5090c807cdb0a
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SHA512
64aa4a5e8e0dfeddda6dba20a7f563c15eeb84dd6470c4b50f2c52d50903b06230dd64e23fec6bbf9f4306d195757b33b59c273bdaa2172d06313f6364ed3a5d
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SSDEEP
49152:wQc81KnB/a/hNT/dJYa8aesY3Ot4N7G/:wDta/hNT/dJn0etD/
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/532-2-0x0000000004090000-0x00000000041DC000-memory.dmp family_vidar_v7 behavioral2/memory/5072-4-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/5072-8-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/5072-10-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/5072-24-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/5072-25-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/5072-42-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/5072-43-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat7947.tmppid Process 5072 kat7947.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:
55ae28e1e0118a91a582025d286cdf3b2c911381ea6e3d1ddcb5090c807cdb0a.exedescription pid Process procid_target PID 532 set thread context of 5072 532 55ae28e1e0118a91a582025d286cdf3b2c911381ea6e3d1ddcb5090c807cdb0a.exe 78 -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat7947.tmpdescription ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat7947.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat7947.tmppid Process 5072 kat7947.tmp 5072 kat7947.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
55ae28e1e0118a91a582025d286cdf3b2c911381ea6e3d1ddcb5090c807cdb0a.exedescription pid Process procid_target PID 532 wrote to memory of 5072 532 55ae28e1e0118a91a582025d286cdf3b2c911381ea6e3d1ddcb5090c807cdb0a.exe 78 PID 532 wrote to memory of 5072 532 55ae28e1e0118a91a582025d286cdf3b2c911381ea6e3d1ddcb5090c807cdb0a.exe 78 PID 532 wrote to memory of 5072 532 55ae28e1e0118a91a582025d286cdf3b2c911381ea6e3d1ddcb5090c807cdb0a.exe 78 PID 532 wrote to memory of 5072 532 55ae28e1e0118a91a582025d286cdf3b2c911381ea6e3d1ddcb5090c807cdb0a.exe 78 PID 532 wrote to memory of 5072 532 55ae28e1e0118a91a582025d286cdf3b2c911381ea6e3d1ddcb5090c807cdb0a.exe 78 PID 532 wrote to memory of 5072 532 55ae28e1e0118a91a582025d286cdf3b2c911381ea6e3d1ddcb5090c807cdb0a.exe 78 PID 532 wrote to memory of 5072 532 55ae28e1e0118a91a582025d286cdf3b2c911381ea6e3d1ddcb5090c807cdb0a.exe 78 PID 532 wrote to memory of 5072 532 55ae28e1e0118a91a582025d286cdf3b2c911381ea6e3d1ddcb5090c807cdb0a.exe 78
Processes
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C:\Users\Admin\AppData\Local\Temp\55ae28e1e0118a91a582025d286cdf3b2c911381ea6e3d1ddcb5090c807cdb0a.exe"C:\Users\Admin\AppData\Local\Temp\55ae28e1e0118a91a582025d286cdf3b2c911381ea6e3d1ddcb5090c807cdb0a.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:532 -
C:\Users\Admin\AppData\Local\Temp\kat7947.tmpC:\Users\Admin\AppData\Local\Temp\kat7947.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:5072
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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