Analysis
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max time kernel
149s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
25-05-2024 07:02
Static task
static1
Behavioral task
behavioral1
Sample
ca824063e8c7314965676fe79d070e85bf5318557873481ed572f18045469610.exe
Resource
win10v2004-20240426-en
General
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Target
ca824063e8c7314965676fe79d070e85bf5318557873481ed572f18045469610.exe
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Size
2.0MB
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MD5
5350325dada034c32fed608093b3e031
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SHA1
c02697defc30a64610ca7230125f9f37290c3f30
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SHA256
ca824063e8c7314965676fe79d070e85bf5318557873481ed572f18045469610
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SHA512
b3a80c5dc9a934442666ae9e2fbf791189bc8b07f190d34d5ce273a0334bfd5fa54550975b3818e8d5c574a995f4bc879b7c80563565e64d3206d02f01ed7c41
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SSDEEP
49152:s4K3x1vUKJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18KtIuoITsdZ
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 8 IoCs
Processes:
resource yara_rule behavioral1/memory/3528-1-0x0000000004050000-0x0000000004199000-memory.dmp family_vidar_v7 behavioral1/memory/540-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/540-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/540-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/540-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/540-18-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/540-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/540-36-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat3354.tmppid process 540 kat3354.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:
ca824063e8c7314965676fe79d070e85bf5318557873481ed572f18045469610.exedescription pid process target process PID 3528 set thread context of 540 3528 ca824063e8c7314965676fe79d070e85bf5318557873481ed572f18045469610.exe kat3354.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat3354.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat3354.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat3354.tmppid process 540 kat3354.tmp 540 kat3354.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
ca824063e8c7314965676fe79d070e85bf5318557873481ed572f18045469610.exedescription pid process target process PID 3528 wrote to memory of 540 3528 ca824063e8c7314965676fe79d070e85bf5318557873481ed572f18045469610.exe kat3354.tmp PID 3528 wrote to memory of 540 3528 ca824063e8c7314965676fe79d070e85bf5318557873481ed572f18045469610.exe kat3354.tmp PID 3528 wrote to memory of 540 3528 ca824063e8c7314965676fe79d070e85bf5318557873481ed572f18045469610.exe kat3354.tmp PID 3528 wrote to memory of 540 3528 ca824063e8c7314965676fe79d070e85bf5318557873481ed572f18045469610.exe kat3354.tmp PID 3528 wrote to memory of 540 3528 ca824063e8c7314965676fe79d070e85bf5318557873481ed572f18045469610.exe kat3354.tmp PID 3528 wrote to memory of 540 3528 ca824063e8c7314965676fe79d070e85bf5318557873481ed572f18045469610.exe kat3354.tmp PID 3528 wrote to memory of 540 3528 ca824063e8c7314965676fe79d070e85bf5318557873481ed572f18045469610.exe kat3354.tmp PID 3528 wrote to memory of 540 3528 ca824063e8c7314965676fe79d070e85bf5318557873481ed572f18045469610.exe kat3354.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\ca824063e8c7314965676fe79d070e85bf5318557873481ed572f18045469610.exe"C:\Users\Admin\AppData\Local\Temp\ca824063e8c7314965676fe79d070e85bf5318557873481ed572f18045469610.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat3354.tmpC:\Users\Admin\AppData\Local\Temp\kat3354.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat3354.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/540-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/540-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/540-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/540-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/540-18-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/540-20-0x000000001DC10000-0x000000001DE6F000-memory.dmpFilesize
2.4MB
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memory/540-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/540-36-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3528-0-0x0000000002240000-0x0000000002241000-memory.dmpFilesize
4KB
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memory/3528-1-0x0000000004050000-0x0000000004199000-memory.dmpFilesize
1.3MB
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memory/3528-10-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB