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Analysis
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max time kernel
195s -
max time network
255s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system -
submitted
23/05/2024, 23:52
Static task
static1
Behavioral task
behavioral1
Sample
61c8ae9a56d98e1b23591deba30b0c3df73657b1538da56255337e81338380e6.exe
Resource
win7-20240508-en
General
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Target
61c8ae9a56d98e1b23591deba30b0c3df73657b1538da56255337e81338380e6.exe
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Size
2.1MB
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MD5
6e4c4c16eb0a8ace6eff45bbf4af78b0
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SHA1
42f77ba20d965dd92b11b6de3daee169145ecfbd
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SHA256
61c8ae9a56d98e1b23591deba30b0c3df73657b1538da56255337e81338380e6
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SHA512
db8609ce4490594e576cb1c9991864ab259fa84f1879105bc10048b752605081bb42b4782cd6fcffcfc881ca75915e45e7eaba602cb2591b977f9500fbdffe53
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SSDEEP
49152:N6uDuaS9refe4JtTF+TxMoxc1TU+j+dAzGwlrh:N6uKb9L4tIuoITsdZ
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
resource yara_rule behavioral2/memory/4448-1-0x0000000004000000-0x0000000004149000-memory.dmp family_vidar_v7 behavioral2/memory/428-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/428-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/428-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/428-16-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/428-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/428-34-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/428-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
pid Process 428 kat5BCC.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
description pid Process procid_target PID 4448 set thread context of 428 4448 61c8ae9a56d98e1b23591deba30b0c3df73657b1538da56255337e81338380e6.exe 73 -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat5BCC.tmp -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 428 kat5BCC.tmp 428 kat5BCC.tmp 428 kat5BCC.tmp 428 kat5BCC.tmp 428 kat5BCC.tmp 428 kat5BCC.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4448 wrote to memory of 428 4448 61c8ae9a56d98e1b23591deba30b0c3df73657b1538da56255337e81338380e6.exe 73 PID 4448 wrote to memory of 428 4448 61c8ae9a56d98e1b23591deba30b0c3df73657b1538da56255337e81338380e6.exe 73 PID 4448 wrote to memory of 428 4448 61c8ae9a56d98e1b23591deba30b0c3df73657b1538da56255337e81338380e6.exe 73 PID 4448 wrote to memory of 428 4448 61c8ae9a56d98e1b23591deba30b0c3df73657b1538da56255337e81338380e6.exe 73 PID 4448 wrote to memory of 428 4448 61c8ae9a56d98e1b23591deba30b0c3df73657b1538da56255337e81338380e6.exe 73 PID 4448 wrote to memory of 428 4448 61c8ae9a56d98e1b23591deba30b0c3df73657b1538da56255337e81338380e6.exe 73 PID 4448 wrote to memory of 428 4448 61c8ae9a56d98e1b23591deba30b0c3df73657b1538da56255337e81338380e6.exe 73 PID 4448 wrote to memory of 428 4448 61c8ae9a56d98e1b23591deba30b0c3df73657b1538da56255337e81338380e6.exe 73
Processes
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C:\Users\Admin\AppData\Local\Temp\61c8ae9a56d98e1b23591deba30b0c3df73657b1538da56255337e81338380e6.exe"C:\Users\Admin\AppData\Local\Temp\61c8ae9a56d98e1b23591deba30b0c3df73657b1538da56255337e81338380e6.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4448 -
C:\Users\Admin\AppData\Local\Temp\kat5BCC.tmpC:\Users\Admin\AppData\Local\Temp\kat5BCC.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:428
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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