Analysis
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max time kernel
132s -
max time network
125s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
24-05-2024 15:27
Static task
static1
Behavioral task
behavioral1
Sample
74363773620a585c7b1c79197bcb2fbd036a7a5baca869f767492a613d578a8a.exe
Resource
win10v2004-20240426-en
General
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Target
74363773620a585c7b1c79197bcb2fbd036a7a5baca869f767492a613d578a8a.exe
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Size
2.0MB
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MD5
4b18f1510a66c45c9913b5bcdea20cdf
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SHA1
d6875bcbf9910900d637d8e1ada2a3c99e9f6add
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SHA256
74363773620a585c7b1c79197bcb2fbd036a7a5baca869f767492a613d578a8a
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SHA512
843e8f24d804bcf6ad11474acbe63dd1a5b0d6036241a1a7a005291f65f1973d8c1477a8ba7e43813a7889aa00f74459badefeabc4f966ca0eb0a43257b3c44c
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SSDEEP
49152:s4K3x1vUqJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18qtIuoITsdZ
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/2116-2-0x00000000040B0000-0x00000000041F9000-memory.dmp family_vidar_v7 behavioral1/memory/1860-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1860-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1860-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1860-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1860-18-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1860-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1860-36-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat31BE.tmppid process 1860 kat31BE.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:
74363773620a585c7b1c79197bcb2fbd036a7a5baca869f767492a613d578a8a.exedescription pid process target process PID 2116 set thread context of 1860 2116 74363773620a585c7b1c79197bcb2fbd036a7a5baca869f767492a613d578a8a.exe kat31BE.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat31BE.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat31BE.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat31BE.tmppid process 1860 kat31BE.tmp 1860 kat31BE.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
74363773620a585c7b1c79197bcb2fbd036a7a5baca869f767492a613d578a8a.exedescription pid process target process PID 2116 wrote to memory of 1860 2116 74363773620a585c7b1c79197bcb2fbd036a7a5baca869f767492a613d578a8a.exe kat31BE.tmp PID 2116 wrote to memory of 1860 2116 74363773620a585c7b1c79197bcb2fbd036a7a5baca869f767492a613d578a8a.exe kat31BE.tmp PID 2116 wrote to memory of 1860 2116 74363773620a585c7b1c79197bcb2fbd036a7a5baca869f767492a613d578a8a.exe kat31BE.tmp PID 2116 wrote to memory of 1860 2116 74363773620a585c7b1c79197bcb2fbd036a7a5baca869f767492a613d578a8a.exe kat31BE.tmp PID 2116 wrote to memory of 1860 2116 74363773620a585c7b1c79197bcb2fbd036a7a5baca869f767492a613d578a8a.exe kat31BE.tmp PID 2116 wrote to memory of 1860 2116 74363773620a585c7b1c79197bcb2fbd036a7a5baca869f767492a613d578a8a.exe kat31BE.tmp PID 2116 wrote to memory of 1860 2116 74363773620a585c7b1c79197bcb2fbd036a7a5baca869f767492a613d578a8a.exe kat31BE.tmp PID 2116 wrote to memory of 1860 2116 74363773620a585c7b1c79197bcb2fbd036a7a5baca869f767492a613d578a8a.exe kat31BE.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\74363773620a585c7b1c79197bcb2fbd036a7a5baca869f767492a613d578a8a.exe"C:\Users\Admin\AppData\Local\Temp\74363773620a585c7b1c79197bcb2fbd036a7a5baca869f767492a613d578a8a.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2116 -
C:\Users\Admin\AppData\Local\Temp\kat31BE.tmpC:\Users\Admin\AppData\Local\Temp\kat31BE.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:1860
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat31BE.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1860-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1860-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1860-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1860-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1860-18-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1860-20-0x000000001DC10000-0x000000001DE6F000-memory.dmpFilesize
2.4MB
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memory/1860-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1860-36-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2116-0-0x0000000002270000-0x0000000002271000-memory.dmpFilesize
4KB
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memory/2116-2-0x00000000040B0000-0x00000000041F9000-memory.dmpFilesize
1.3MB
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memory/2116-10-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB