Analysis
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max time kernel
134s -
max time network
124s -
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 14:16
Static task
static1
Behavioral task
behavioral1
Sample
756977d719d27e93520a5de1616e76c08dab5b1c1fd3b9fd0d6cdab479bd78e0.exe
Resource
win10v2004-20240508-en
General
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Target
756977d719d27e93520a5de1616e76c08dab5b1c1fd3b9fd0d6cdab479bd78e0.exe
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Size
1.9MB
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MD5
81ad6e94c93db5d152ce8d8b024d5dfb
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SHA1
b0351a0960d5989e283562c81447a0705c420bb0
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SHA256
756977d719d27e93520a5de1616e76c08dab5b1c1fd3b9fd0d6cdab479bd78e0
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SHA512
fb69a12261acc9d5beaf65fb2614aeb5649576f129db129d739faf7502a7dfb88c86efeb4b1a7b81dde6c17caef8f54148a8fa0af7ead15f6bf1f5a2cdf59592
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SSDEEP
49152:CdKfTn6veJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnttIuoITsdZ
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/952-1-0x0000000003FF0000-0x0000000004139000-memory.dmp family_vidar_v7 behavioral1/memory/5080-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5080-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5080-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5080-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5080-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5080-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5080-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat3D76.tmppid process 5080 kat3D76.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:
756977d719d27e93520a5de1616e76c08dab5b1c1fd3b9fd0d6cdab479bd78e0.exedescription pid process target process PID 952 set thread context of 5080 952 756977d719d27e93520a5de1616e76c08dab5b1c1fd3b9fd0d6cdab479bd78e0.exe kat3D76.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat3D76.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat3D76.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat3D76.tmppid process 5080 kat3D76.tmp 5080 kat3D76.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
756977d719d27e93520a5de1616e76c08dab5b1c1fd3b9fd0d6cdab479bd78e0.exedescription pid process target process PID 952 wrote to memory of 5080 952 756977d719d27e93520a5de1616e76c08dab5b1c1fd3b9fd0d6cdab479bd78e0.exe kat3D76.tmp PID 952 wrote to memory of 5080 952 756977d719d27e93520a5de1616e76c08dab5b1c1fd3b9fd0d6cdab479bd78e0.exe kat3D76.tmp PID 952 wrote to memory of 5080 952 756977d719d27e93520a5de1616e76c08dab5b1c1fd3b9fd0d6cdab479bd78e0.exe kat3D76.tmp PID 952 wrote to memory of 5080 952 756977d719d27e93520a5de1616e76c08dab5b1c1fd3b9fd0d6cdab479bd78e0.exe kat3D76.tmp PID 952 wrote to memory of 5080 952 756977d719d27e93520a5de1616e76c08dab5b1c1fd3b9fd0d6cdab479bd78e0.exe kat3D76.tmp PID 952 wrote to memory of 5080 952 756977d719d27e93520a5de1616e76c08dab5b1c1fd3b9fd0d6cdab479bd78e0.exe kat3D76.tmp PID 952 wrote to memory of 5080 952 756977d719d27e93520a5de1616e76c08dab5b1c1fd3b9fd0d6cdab479bd78e0.exe kat3D76.tmp PID 952 wrote to memory of 5080 952 756977d719d27e93520a5de1616e76c08dab5b1c1fd3b9fd0d6cdab479bd78e0.exe kat3D76.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\756977d719d27e93520a5de1616e76c08dab5b1c1fd3b9fd0d6cdab479bd78e0.exe"C:\Users\Admin\AppData\Local\Temp\756977d719d27e93520a5de1616e76c08dab5b1c1fd3b9fd0d6cdab479bd78e0.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat3D76.tmpC:\Users\Admin\AppData\Local\Temp\kat3D76.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\kat3D76.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/952-0-0x0000000002250000-0x0000000002251000-memory.dmpFilesize
4KB
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memory/952-1-0x0000000003FF0000-0x0000000004139000-memory.dmpFilesize
1.3MB
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memory/952-9-0x0000000000400000-0x00000000005EC000-memory.dmpFilesize
1.9MB
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memory/5080-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5080-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5080-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5080-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5080-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5080-17-0x000000001B720000-0x000000001B97F000-memory.dmpFilesize
2.4MB
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memory/5080-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5080-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB