Analysis
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max time kernel
95s -
max time network
127s -
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 02:02
Static task
static1
Behavioral task
behavioral1
Sample
1365fed9345624fedc7454334adfa0453ecde45563d0530190303d47559d756f.exe
Resource
win10v2004-20240426-en
General
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Target
1365fed9345624fedc7454334adfa0453ecde45563d0530190303d47559d756f.exe
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Size
2.0MB
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MD5
ba6bc03585136a0460d9b5643ed8eafe
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SHA1
7dd79b80b5f5ce1da47a9c64a14ed1ee667f2966
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SHA256
1365fed9345624fedc7454334adfa0453ecde45563d0530190303d47559d756f
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SHA512
b8ce15eddd66831cc180dde772d601ab4d4ad8b0e717d513c1fda9d4e1b681332304278ad1f6625ffb8f43077567b63faa680cb3bb7e930ad51d80cddf6168d1
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SSDEEP
49152:OePpQE5JtTF+TxMoxc1TU+j+dAzGwlrh:OePpQE5tIuoITsdZ
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/2636-1-0x0000000004000000-0x0000000004149000-memory.dmp family_vidar_v7 behavioral1/memory/2120-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2120-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2120-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2120-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2120-18-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2120-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2120-36-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat399E.tmppid process 2120 kat399E.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:
1365fed9345624fedc7454334adfa0453ecde45563d0530190303d47559d756f.exedescription pid process target process PID 2636 set thread context of 2120 2636 1365fed9345624fedc7454334adfa0453ecde45563d0530190303d47559d756f.exe kat399E.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat399E.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat399E.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat399E.tmppid process 2120 kat399E.tmp 2120 kat399E.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
1365fed9345624fedc7454334adfa0453ecde45563d0530190303d47559d756f.exedescription pid process target process PID 2636 wrote to memory of 2120 2636 1365fed9345624fedc7454334adfa0453ecde45563d0530190303d47559d756f.exe kat399E.tmp PID 2636 wrote to memory of 2120 2636 1365fed9345624fedc7454334adfa0453ecde45563d0530190303d47559d756f.exe kat399E.tmp PID 2636 wrote to memory of 2120 2636 1365fed9345624fedc7454334adfa0453ecde45563d0530190303d47559d756f.exe kat399E.tmp PID 2636 wrote to memory of 2120 2636 1365fed9345624fedc7454334adfa0453ecde45563d0530190303d47559d756f.exe kat399E.tmp PID 2636 wrote to memory of 2120 2636 1365fed9345624fedc7454334adfa0453ecde45563d0530190303d47559d756f.exe kat399E.tmp PID 2636 wrote to memory of 2120 2636 1365fed9345624fedc7454334adfa0453ecde45563d0530190303d47559d756f.exe kat399E.tmp PID 2636 wrote to memory of 2120 2636 1365fed9345624fedc7454334adfa0453ecde45563d0530190303d47559d756f.exe kat399E.tmp PID 2636 wrote to memory of 2120 2636 1365fed9345624fedc7454334adfa0453ecde45563d0530190303d47559d756f.exe kat399E.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\1365fed9345624fedc7454334adfa0453ecde45563d0530190303d47559d756f.exe"C:\Users\Admin\AppData\Local\Temp\1365fed9345624fedc7454334adfa0453ecde45563d0530190303d47559d756f.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2636 -
C:\Users\Admin\AppData\Local\Temp\kat399E.tmpC:\Users\Admin\AppData\Local\Temp\kat399E.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2120
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat399E.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/2120-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2120-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2120-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2120-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2120-18-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2120-20-0x000000001DC40000-0x000000001DE9F000-memory.dmpFilesize
2.4MB
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memory/2120-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2120-36-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2636-0-0x0000000002270000-0x0000000002271000-memory.dmpFilesize
4KB
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memory/2636-1-0x0000000004000000-0x0000000004149000-memory.dmpFilesize
1.3MB
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memory/2636-10-0x0000000000400000-0x0000000000612000-memory.dmpFilesize
2.1MB