Analysis
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max time kernel
91s -
max time network
136s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
24-05-2024 11:54
Static task
static1
Behavioral task
behavioral1
Sample
4c77642643c99a8c8985fa396fd739a61fd41a8a32d204760b6317676f3ea71a.exe
Resource
win10v2004-20240426-en
General
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Target
4c77642643c99a8c8985fa396fd739a61fd41a8a32d204760b6317676f3ea71a.exe
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Size
2.4MB
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MD5
63e3d3c97bcc55c6dd3c05ea4740d375
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SHA1
d286b86fdb4df97a301e8c0c349d255dc0ef8760
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SHA256
4c77642643c99a8c8985fa396fd739a61fd41a8a32d204760b6317676f3ea71a
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SHA512
972fb51c3e19f64fe7d1b04fc128022b8720086ed54287cada469da74ae54aa9ef6e0c636383eedbacce93f16610e45101878ac73982cd40c39ce586f7975060
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SSDEEP
49152:jxIRJF1HL+VdX68kUqJtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68dqtIuoITsdZ
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 behavioral2/memory/828-2-0x0000000004140000-0x0000000004289000-memory.dmp family_vidar_v7 behavioral2/memory/3432-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3432-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3432-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3432-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3432-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3432-21-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3432-38-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3432-39-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat4CE7.tmppid process 3432 kat4CE7.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:
4c77642643c99a8c8985fa396fd739a61fd41a8a32d204760b6317676f3ea71a.exedescription pid process target process PID 828 set thread context of 3432 828 4c77642643c99a8c8985fa396fd739a61fd41a8a32d204760b6317676f3ea71a.exe kat4CE7.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat4CE7.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat4CE7.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat4CE7.tmppid process 3432 kat4CE7.tmp 3432 kat4CE7.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
4c77642643c99a8c8985fa396fd739a61fd41a8a32d204760b6317676f3ea71a.exedescription pid process target process PID 828 wrote to memory of 3432 828 4c77642643c99a8c8985fa396fd739a61fd41a8a32d204760b6317676f3ea71a.exe kat4CE7.tmp PID 828 wrote to memory of 3432 828 4c77642643c99a8c8985fa396fd739a61fd41a8a32d204760b6317676f3ea71a.exe kat4CE7.tmp PID 828 wrote to memory of 3432 828 4c77642643c99a8c8985fa396fd739a61fd41a8a32d204760b6317676f3ea71a.exe kat4CE7.tmp PID 828 wrote to memory of 3432 828 4c77642643c99a8c8985fa396fd739a61fd41a8a32d204760b6317676f3ea71a.exe kat4CE7.tmp PID 828 wrote to memory of 3432 828 4c77642643c99a8c8985fa396fd739a61fd41a8a32d204760b6317676f3ea71a.exe kat4CE7.tmp PID 828 wrote to memory of 3432 828 4c77642643c99a8c8985fa396fd739a61fd41a8a32d204760b6317676f3ea71a.exe kat4CE7.tmp PID 828 wrote to memory of 3432 828 4c77642643c99a8c8985fa396fd739a61fd41a8a32d204760b6317676f3ea71a.exe kat4CE7.tmp PID 828 wrote to memory of 3432 828 4c77642643c99a8c8985fa396fd739a61fd41a8a32d204760b6317676f3ea71a.exe kat4CE7.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\4c77642643c99a8c8985fa396fd739a61fd41a8a32d204760b6317676f3ea71a.exe"C:\Users\Admin\AppData\Local\Temp\4c77642643c99a8c8985fa396fd739a61fd41a8a32d204760b6317676f3ea71a.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat4CE7.tmpC:\Users\Admin\AppData\Local\Temp\kat4CE7.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\kat4CE7.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/828-10-0x0000000000400000-0x0000000000678000-memory.dmpFilesize
2.5MB
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memory/828-2-0x0000000004140000-0x0000000004289000-memory.dmpFilesize
1.3MB
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memory/828-0-0x0000000000920000-0x0000000000921000-memory.dmpFilesize
4KB
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memory/3432-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3432-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3432-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3432-19-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3432-20-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3432-21-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3432-23-0x00000000260B0000-0x000000002630F000-memory.dmpFilesize
2.4MB
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memory/3432-38-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3432-39-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB