Analysis
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max time kernel
149s -
max time network
150s -
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 19:10
Static task
static1
Behavioral task
behavioral1
Sample
2d4a76fb3babe13cee253e93312fee941d392ff34b112818c276aa25625d6fe9.exe
Resource
win10v2004-20240426-en
General
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Target
2d4a76fb3babe13cee253e93312fee941d392ff34b112818c276aa25625d6fe9.exe
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Size
1.9MB
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MD5
2a1b80099d7f64dc50e3cc176db7c4a0
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SHA1
a90dd9b06cd628c6583895a2479b5acf2e1c4dca
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SHA256
2d4a76fb3babe13cee253e93312fee941d392ff34b112818c276aa25625d6fe9
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SHA512
afbfe748fe1237c2040941bd4d00e5ab6d72306c85c99b527fd6afd9de946bc4a7e2d507c0d49e01f809a8689531931a551b95410b5dc508befa1f1b01be212c
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SSDEEP
49152:CdKfTn6vGJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnVtIuoITsdZ
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/1612-1-0x0000000004090000-0x00000000041D9000-memory.dmp family_vidar_v7 behavioral1/memory/4596-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4596-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4596-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4596-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4596-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4596-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4596-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat419D.tmppid process 4596 kat419D.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:
2d4a76fb3babe13cee253e93312fee941d392ff34b112818c276aa25625d6fe9.exedescription pid process target process PID 1612 set thread context of 4596 1612 2d4a76fb3babe13cee253e93312fee941d392ff34b112818c276aa25625d6fe9.exe kat419D.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat419D.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat419D.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat419D.tmppid process 4596 kat419D.tmp 4596 kat419D.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
2d4a76fb3babe13cee253e93312fee941d392ff34b112818c276aa25625d6fe9.exedescription pid process target process PID 1612 wrote to memory of 4596 1612 2d4a76fb3babe13cee253e93312fee941d392ff34b112818c276aa25625d6fe9.exe kat419D.tmp PID 1612 wrote to memory of 4596 1612 2d4a76fb3babe13cee253e93312fee941d392ff34b112818c276aa25625d6fe9.exe kat419D.tmp PID 1612 wrote to memory of 4596 1612 2d4a76fb3babe13cee253e93312fee941d392ff34b112818c276aa25625d6fe9.exe kat419D.tmp PID 1612 wrote to memory of 4596 1612 2d4a76fb3babe13cee253e93312fee941d392ff34b112818c276aa25625d6fe9.exe kat419D.tmp PID 1612 wrote to memory of 4596 1612 2d4a76fb3babe13cee253e93312fee941d392ff34b112818c276aa25625d6fe9.exe kat419D.tmp PID 1612 wrote to memory of 4596 1612 2d4a76fb3babe13cee253e93312fee941d392ff34b112818c276aa25625d6fe9.exe kat419D.tmp PID 1612 wrote to memory of 4596 1612 2d4a76fb3babe13cee253e93312fee941d392ff34b112818c276aa25625d6fe9.exe kat419D.tmp PID 1612 wrote to memory of 4596 1612 2d4a76fb3babe13cee253e93312fee941d392ff34b112818c276aa25625d6fe9.exe kat419D.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\2d4a76fb3babe13cee253e93312fee941d392ff34b112818c276aa25625d6fe9.exe"C:\Users\Admin\AppData\Local\Temp\2d4a76fb3babe13cee253e93312fee941d392ff34b112818c276aa25625d6fe9.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1612 -
C:\Users\Admin\AppData\Local\Temp\kat419D.tmpC:\Users\Admin\AppData\Local\Temp\kat419D.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4596
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat419D.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1612-0-0x00000000007A0000-0x00000000007A1000-memory.dmpFilesize
4KB
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memory/1612-1-0x0000000004090000-0x00000000041D9000-memory.dmpFilesize
1.3MB
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memory/1612-9-0x0000000000400000-0x00000000005EC000-memory.dmpFilesize
1.9MB
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memory/4596-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4596-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4596-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4596-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4596-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4596-18-0x000000001B760000-0x000000001B9BF000-memory.dmpFilesize
2.4MB
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memory/4596-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4596-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB