Analysis
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max time kernel
148s -
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 14:07
Static task
static1
Behavioral task
behavioral1
Sample
a1210d97e398f777a8dc19020577de12e7a41f9efcc8c749b3051f8bf0bd21e2.exe
Resource
win10v2004-20240426-en
General
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Target
a1210d97e398f777a8dc19020577de12e7a41f9efcc8c749b3051f8bf0bd21e2.exe
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Size
2.0MB
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MD5
86854acba8937c696dda0f7643a2bd8c
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SHA1
2058cd708890156b6be03b5f4136bb2cfbdf3191
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SHA256
a1210d97e398f777a8dc19020577de12e7a41f9efcc8c749b3051f8bf0bd21e2
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SHA512
23d22ec6b3bcd8fb406fccad04aa1f2eae834587d4f5102d5ad802c5056a9be3449e654431235c6c19768ac29d22a2b36958514d37274634a92a8a23623d707a
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SSDEEP
49152:s4K3x1vUWJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18WtIuoITsdZ
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 9 IoCs
Processes:
resource yara_rule behavioral1/memory/2428-1-0x00000000040E0000-0x0000000004229000-memory.dmp family_vidar_v7 behavioral1/memory/4688-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4688-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4688-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4688-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4688-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4688-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4688-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4688-34-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat47B7.tmppid process 4688 kat47B7.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:
a1210d97e398f777a8dc19020577de12e7a41f9efcc8c749b3051f8bf0bd21e2.exedescription pid process target process PID 2428 set thread context of 4688 2428 a1210d97e398f777a8dc19020577de12e7a41f9efcc8c749b3051f8bf0bd21e2.exe kat47B7.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat47B7.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat47B7.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat47B7.tmppid process 4688 kat47B7.tmp 4688 kat47B7.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
a1210d97e398f777a8dc19020577de12e7a41f9efcc8c749b3051f8bf0bd21e2.exedescription pid process target process PID 2428 wrote to memory of 4688 2428 a1210d97e398f777a8dc19020577de12e7a41f9efcc8c749b3051f8bf0bd21e2.exe kat47B7.tmp PID 2428 wrote to memory of 4688 2428 a1210d97e398f777a8dc19020577de12e7a41f9efcc8c749b3051f8bf0bd21e2.exe kat47B7.tmp PID 2428 wrote to memory of 4688 2428 a1210d97e398f777a8dc19020577de12e7a41f9efcc8c749b3051f8bf0bd21e2.exe kat47B7.tmp PID 2428 wrote to memory of 4688 2428 a1210d97e398f777a8dc19020577de12e7a41f9efcc8c749b3051f8bf0bd21e2.exe kat47B7.tmp PID 2428 wrote to memory of 4688 2428 a1210d97e398f777a8dc19020577de12e7a41f9efcc8c749b3051f8bf0bd21e2.exe kat47B7.tmp PID 2428 wrote to memory of 4688 2428 a1210d97e398f777a8dc19020577de12e7a41f9efcc8c749b3051f8bf0bd21e2.exe kat47B7.tmp PID 2428 wrote to memory of 4688 2428 a1210d97e398f777a8dc19020577de12e7a41f9efcc8c749b3051f8bf0bd21e2.exe kat47B7.tmp PID 2428 wrote to memory of 4688 2428 a1210d97e398f777a8dc19020577de12e7a41f9efcc8c749b3051f8bf0bd21e2.exe kat47B7.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\a1210d97e398f777a8dc19020577de12e7a41f9efcc8c749b3051f8bf0bd21e2.exe"C:\Users\Admin\AppData\Local\Temp\a1210d97e398f777a8dc19020577de12e7a41f9efcc8c749b3051f8bf0bd21e2.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2428 -
C:\Users\Admin\AppData\Local\Temp\kat47B7.tmpC:\Users\Admin\AppData\Local\Temp\kat47B7.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4688
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat47B7.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/2428-10-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
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memory/2428-1-0x00000000040E0000-0x0000000004229000-memory.dmpFilesize
1.3MB
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memory/2428-0-0x0000000002260000-0x0000000002261000-memory.dmpFilesize
4KB
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memory/4688-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4688-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4688-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4688-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4688-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4688-19-0x000000001DBA0000-0x000000001DDFF000-memory.dmpFilesize
2.4MB
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memory/4688-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4688-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4688-34-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB