Analysis
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max time kernel
134s -
max time network
103s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
28-05-2024 04:01
Static task
static1
Behavioral task
behavioral1
Sample
51d93d89126f3c48378b5a684a442b596e9ae9baddb9bc956cdb817fbdc9a4cc.exe
Resource
win10v2004-20240508-en
General
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Target
51d93d89126f3c48378b5a684a442b596e9ae9baddb9bc956cdb817fbdc9a4cc.exe
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Size
1.9MB
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MD5
1f912183c69d02490593546cf89181b7
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SHA1
6498c2c365e9a0c0ce4e4cdd6901d766cb1c7e2d
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SHA256
51d93d89126f3c48378b5a684a442b596e9ae9baddb9bc956cdb817fbdc9a4cc
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SHA512
75ef79d79e1c3bd16d733b90ad86d032e97d2bd47b436a6b8700fb878393eef5255d0f47ae230af0a355b13320bb34bd78de7c4648bb74fc7900fe17a46664a7
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SSDEEP
49152:CdKfTn6vGJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTn9tIuoITsdZ
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/2720-2-0x0000000004220000-0x0000000004369000-memory.dmp family_vidar_v7 behavioral1/memory/4636-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4636-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4636-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4636-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4636-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4636-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4636-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat564E.tmppid process 4636 kat564E.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:
51d93d89126f3c48378b5a684a442b596e9ae9baddb9bc956cdb817fbdc9a4cc.exedescription pid process target process PID 2720 set thread context of 4636 2720 51d93d89126f3c48378b5a684a442b596e9ae9baddb9bc956cdb817fbdc9a4cc.exe kat564E.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat564E.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat564E.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat564E.tmppid process 4636 kat564E.tmp 4636 kat564E.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
51d93d89126f3c48378b5a684a442b596e9ae9baddb9bc956cdb817fbdc9a4cc.exedescription pid process target process PID 2720 wrote to memory of 4636 2720 51d93d89126f3c48378b5a684a442b596e9ae9baddb9bc956cdb817fbdc9a4cc.exe kat564E.tmp PID 2720 wrote to memory of 4636 2720 51d93d89126f3c48378b5a684a442b596e9ae9baddb9bc956cdb817fbdc9a4cc.exe kat564E.tmp PID 2720 wrote to memory of 4636 2720 51d93d89126f3c48378b5a684a442b596e9ae9baddb9bc956cdb817fbdc9a4cc.exe kat564E.tmp PID 2720 wrote to memory of 4636 2720 51d93d89126f3c48378b5a684a442b596e9ae9baddb9bc956cdb817fbdc9a4cc.exe kat564E.tmp PID 2720 wrote to memory of 4636 2720 51d93d89126f3c48378b5a684a442b596e9ae9baddb9bc956cdb817fbdc9a4cc.exe kat564E.tmp PID 2720 wrote to memory of 4636 2720 51d93d89126f3c48378b5a684a442b596e9ae9baddb9bc956cdb817fbdc9a4cc.exe kat564E.tmp PID 2720 wrote to memory of 4636 2720 51d93d89126f3c48378b5a684a442b596e9ae9baddb9bc956cdb817fbdc9a4cc.exe kat564E.tmp PID 2720 wrote to memory of 4636 2720 51d93d89126f3c48378b5a684a442b596e9ae9baddb9bc956cdb817fbdc9a4cc.exe kat564E.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\51d93d89126f3c48378b5a684a442b596e9ae9baddb9bc956cdb817fbdc9a4cc.exe"C:\Users\Admin\AppData\Local\Temp\51d93d89126f3c48378b5a684a442b596e9ae9baddb9bc956cdb817fbdc9a4cc.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2720 -
C:\Users\Admin\AppData\Local\Temp\kat564E.tmpC:\Users\Admin\AppData\Local\Temp\kat564E.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4636
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat564E.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/2720-0-0x00000000008E0000-0x00000000008E1000-memory.dmpFilesize
4KB
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memory/2720-2-0x0000000004220000-0x0000000004369000-memory.dmpFilesize
1.3MB
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memory/2720-10-0x0000000000400000-0x00000000005EC000-memory.dmpFilesize
1.9MB
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memory/4636-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4636-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4636-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4636-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4636-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4636-17-0x000000001B730000-0x000000001B98F000-memory.dmpFilesize
2.4MB
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memory/4636-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4636-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB