Analysis
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max time kernel
133s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
27-05-2024 19:21
Static task
static1
Behavioral task
behavioral1
Sample
1d6e32a2ca044752123564ff07612fdddfc5c4f22ec1bb34d71f6423d88e8896.exe
Resource
win10v2004-20240508-en
General
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Target
1d6e32a2ca044752123564ff07612fdddfc5c4f22ec1bb34d71f6423d88e8896.exe
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Size
1.9MB
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MD5
b719944bdeb72b13967e86c9420c7c24
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SHA1
9fc42fb5dfee95551e328d5129da80c11da9caef
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SHA256
1d6e32a2ca044752123564ff07612fdddfc5c4f22ec1bb34d71f6423d88e8896
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SHA512
fffaf1d867a64c4bc6b6251ce4c7f475e811ff39facdad2250bdb0853914d63d6043d5c080afae5fb7e32305cca38501171b6a6d66eb65e88bf15ae254ce6e1f
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SSDEEP
49152:CdKfTn6vSJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTn5tIuoITsdZ
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/3812-2-0x00000000040F0000-0x0000000004239000-memory.dmp family_vidar_v7 behavioral1/memory/3456-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3456-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3456-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3456-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3456-18-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3456-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3456-36-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat4C4B.tmppid process 3456 kat4C4B.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:
1d6e32a2ca044752123564ff07612fdddfc5c4f22ec1bb34d71f6423d88e8896.exedescription pid process target process PID 3812 set thread context of 3456 3812 1d6e32a2ca044752123564ff07612fdddfc5c4f22ec1bb34d71f6423d88e8896.exe kat4C4B.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat4C4B.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat4C4B.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat4C4B.tmppid process 3456 kat4C4B.tmp 3456 kat4C4B.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
1d6e32a2ca044752123564ff07612fdddfc5c4f22ec1bb34d71f6423d88e8896.exedescription pid process target process PID 3812 wrote to memory of 3456 3812 1d6e32a2ca044752123564ff07612fdddfc5c4f22ec1bb34d71f6423d88e8896.exe kat4C4B.tmp PID 3812 wrote to memory of 3456 3812 1d6e32a2ca044752123564ff07612fdddfc5c4f22ec1bb34d71f6423d88e8896.exe kat4C4B.tmp PID 3812 wrote to memory of 3456 3812 1d6e32a2ca044752123564ff07612fdddfc5c4f22ec1bb34d71f6423d88e8896.exe kat4C4B.tmp PID 3812 wrote to memory of 3456 3812 1d6e32a2ca044752123564ff07612fdddfc5c4f22ec1bb34d71f6423d88e8896.exe kat4C4B.tmp PID 3812 wrote to memory of 3456 3812 1d6e32a2ca044752123564ff07612fdddfc5c4f22ec1bb34d71f6423d88e8896.exe kat4C4B.tmp PID 3812 wrote to memory of 3456 3812 1d6e32a2ca044752123564ff07612fdddfc5c4f22ec1bb34d71f6423d88e8896.exe kat4C4B.tmp PID 3812 wrote to memory of 3456 3812 1d6e32a2ca044752123564ff07612fdddfc5c4f22ec1bb34d71f6423d88e8896.exe kat4C4B.tmp PID 3812 wrote to memory of 3456 3812 1d6e32a2ca044752123564ff07612fdddfc5c4f22ec1bb34d71f6423d88e8896.exe kat4C4B.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\1d6e32a2ca044752123564ff07612fdddfc5c4f22ec1bb34d71f6423d88e8896.exe"C:\Users\Admin\AppData\Local\Temp\1d6e32a2ca044752123564ff07612fdddfc5c4f22ec1bb34d71f6423d88e8896.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3812 -
C:\Users\Admin\AppData\Local\Temp\kat4C4B.tmpC:\Users\Admin\AppData\Local\Temp\kat4C4B.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3456
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat4C4B.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/3456-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3456-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3456-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3456-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3456-18-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3456-20-0x000000001B770000-0x000000001B9CF000-memory.dmpFilesize
2.4MB
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memory/3456-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3456-36-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3812-0-0x0000000000790000-0x0000000000791000-memory.dmpFilesize
4KB
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memory/3812-2-0x00000000040F0000-0x0000000004239000-memory.dmpFilesize
1.3MB
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memory/3812-10-0x0000000000400000-0x00000000005EC000-memory.dmpFilesize
1.9MB