Analysis
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max time kernel
133s -
max time network
102s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
26-05-2024 06:15
Static task
static1
Behavioral task
behavioral1
Sample
8c0889b7cf617efc94d88bca3e765c713ba048866ac8b14a431e54db2e72b017.exe
Resource
win10v2004-20240508-en
General
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Target
8c0889b7cf617efc94d88bca3e765c713ba048866ac8b14a431e54db2e72b017.exe
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Size
2.0MB
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MD5
843667f4cc59b957555b191c7d47e1ba
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SHA1
049ed2891566c0e1ef4993a619fa0702ab38d173
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SHA256
8c0889b7cf617efc94d88bca3e765c713ba048866ac8b14a431e54db2e72b017
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SHA512
54cf419b6925134bfc3e470ef6bcc01de4f0644f7e8698ac3548140fe9a462e3ecc2ecd3c6b8fef7682cf0279dbac2ba35c14d50db1793904e19e05dae2a94d1
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SSDEEP
49152:s4K3x1vUuJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18utIuoITsdZ
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/312-2-0x0000000004120000-0x0000000004269000-memory.dmp family_vidar_v7 behavioral1/memory/2760-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2760-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2760-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2760-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2760-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2760-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2760-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat56AB.tmppid process 2760 kat56AB.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:
8c0889b7cf617efc94d88bca3e765c713ba048866ac8b14a431e54db2e72b017.exedescription pid process target process PID 312 set thread context of 2760 312 8c0889b7cf617efc94d88bca3e765c713ba048866ac8b14a431e54db2e72b017.exe kat56AB.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat56AB.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat56AB.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat56AB.tmppid process 2760 kat56AB.tmp 2760 kat56AB.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
8c0889b7cf617efc94d88bca3e765c713ba048866ac8b14a431e54db2e72b017.exedescription pid process target process PID 312 wrote to memory of 2760 312 8c0889b7cf617efc94d88bca3e765c713ba048866ac8b14a431e54db2e72b017.exe kat56AB.tmp PID 312 wrote to memory of 2760 312 8c0889b7cf617efc94d88bca3e765c713ba048866ac8b14a431e54db2e72b017.exe kat56AB.tmp PID 312 wrote to memory of 2760 312 8c0889b7cf617efc94d88bca3e765c713ba048866ac8b14a431e54db2e72b017.exe kat56AB.tmp PID 312 wrote to memory of 2760 312 8c0889b7cf617efc94d88bca3e765c713ba048866ac8b14a431e54db2e72b017.exe kat56AB.tmp PID 312 wrote to memory of 2760 312 8c0889b7cf617efc94d88bca3e765c713ba048866ac8b14a431e54db2e72b017.exe kat56AB.tmp PID 312 wrote to memory of 2760 312 8c0889b7cf617efc94d88bca3e765c713ba048866ac8b14a431e54db2e72b017.exe kat56AB.tmp PID 312 wrote to memory of 2760 312 8c0889b7cf617efc94d88bca3e765c713ba048866ac8b14a431e54db2e72b017.exe kat56AB.tmp PID 312 wrote to memory of 2760 312 8c0889b7cf617efc94d88bca3e765c713ba048866ac8b14a431e54db2e72b017.exe kat56AB.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\8c0889b7cf617efc94d88bca3e765c713ba048866ac8b14a431e54db2e72b017.exe"C:\Users\Admin\AppData\Local\Temp\8c0889b7cf617efc94d88bca3e765c713ba048866ac8b14a431e54db2e72b017.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat56AB.tmpC:\Users\Admin\AppData\Local\Temp\kat56AB.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat56AB.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/312-0-0x0000000002260000-0x0000000002261000-memory.dmpFilesize
4KB
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memory/312-2-0x0000000004120000-0x0000000004269000-memory.dmpFilesize
1.3MB
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memory/312-10-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
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memory/2760-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2760-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2760-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2760-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2760-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2760-17-0x000000001B770000-0x000000001B9CF000-memory.dmpFilesize
2.4MB
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memory/2760-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2760-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB