Analysis
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max time kernel
146s -
max time network
152s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
25-05-2024 21:15
Static task
static1
Behavioral task
behavioral1
Sample
ca52b50c0069ac623ae8dea98081103b1765d59f97091b0ee101474fbb8d2ea0.exe
Resource
win10v2004-20240426-en
General
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Target
ca52b50c0069ac623ae8dea98081103b1765d59f97091b0ee101474fbb8d2ea0.exe
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Size
2.0MB
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MD5
b457981627e7c4d2f144fd1eaed6b2c8
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SHA1
0484a40ca8c48e9a993f5cd2d76a2369823a62ba
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SHA256
ca52b50c0069ac623ae8dea98081103b1765d59f97091b0ee101474fbb8d2ea0
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SHA512
16c548c459d6ec9914df3faf6471c81027ed26712f18458e9e24d4b973a916789af48cde173b0a1bf6f42e186211324f11dc4940f0d8d1d23feda82f304275b4
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SSDEEP
49152:s4K3x1vU+JtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18+tIuoITsdZ
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 14 IoCs
Processes:
resource yara_rule behavioral2/memory/2468-2-0x00000000040A0000-0x00000000041E9000-memory.dmp family_vidar_v7 behavioral2/memory/3832-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3832-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3832-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3832-16-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3832-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3832-34-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3832-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3832-51-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3832-52-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3832-63-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3832-64-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3832-65-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3832-68-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat6AEF.tmppid process 3832 kat6AEF.tmp -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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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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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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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:
ca52b50c0069ac623ae8dea98081103b1765d59f97091b0ee101474fbb8d2ea0.exedescription pid process target process PID 2468 set thread context of 3832 2468 ca52b50c0069ac623ae8dea98081103b1765d59f97091b0ee101474fbb8d2ea0.exe kat6AEF.tmp -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat6AEF.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat6AEF.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 1900 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat6AEF.tmppid process 3832 kat6AEF.tmp 3832 kat6AEF.tmp 3832 kat6AEF.tmp 3832 kat6AEF.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
ca52b50c0069ac623ae8dea98081103b1765d59f97091b0ee101474fbb8d2ea0.exekat6AEF.tmpcmd.exedescription pid process target process PID 2468 wrote to memory of 3832 2468 ca52b50c0069ac623ae8dea98081103b1765d59f97091b0ee101474fbb8d2ea0.exe kat6AEF.tmp PID 2468 wrote to memory of 3832 2468 ca52b50c0069ac623ae8dea98081103b1765d59f97091b0ee101474fbb8d2ea0.exe kat6AEF.tmp PID 2468 wrote to memory of 3832 2468 ca52b50c0069ac623ae8dea98081103b1765d59f97091b0ee101474fbb8d2ea0.exe kat6AEF.tmp PID 2468 wrote to memory of 3832 2468 ca52b50c0069ac623ae8dea98081103b1765d59f97091b0ee101474fbb8d2ea0.exe kat6AEF.tmp PID 2468 wrote to memory of 3832 2468 ca52b50c0069ac623ae8dea98081103b1765d59f97091b0ee101474fbb8d2ea0.exe kat6AEF.tmp PID 2468 wrote to memory of 3832 2468 ca52b50c0069ac623ae8dea98081103b1765d59f97091b0ee101474fbb8d2ea0.exe kat6AEF.tmp PID 2468 wrote to memory of 3832 2468 ca52b50c0069ac623ae8dea98081103b1765d59f97091b0ee101474fbb8d2ea0.exe kat6AEF.tmp PID 2468 wrote to memory of 3832 2468 ca52b50c0069ac623ae8dea98081103b1765d59f97091b0ee101474fbb8d2ea0.exe kat6AEF.tmp PID 3832 wrote to memory of 1640 3832 kat6AEF.tmp cmd.exe PID 3832 wrote to memory of 1640 3832 kat6AEF.tmp cmd.exe PID 3832 wrote to memory of 1640 3832 kat6AEF.tmp cmd.exe PID 1640 wrote to memory of 1900 1640 cmd.exe timeout.exe PID 1640 wrote to memory of 1900 1640 cmd.exe timeout.exe PID 1640 wrote to memory of 1900 1640 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\ca52b50c0069ac623ae8dea98081103b1765d59f97091b0ee101474fbb8d2ea0.exe"C:\Users\Admin\AppData\Local\Temp\ca52b50c0069ac623ae8dea98081103b1765d59f97091b0ee101474fbb8d2ea0.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2468 -
C:\Users\Admin\AppData\Local\Temp\kat6AEF.tmpC:\Users\Admin\AppData\Local\Temp\kat6AEF.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3832 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat6AEF.tmp" & rd /s /q "C:\ProgramData\DAEGIDHDHIDG" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:1640 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:1900
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat6AEF.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/2468-9-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
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memory/2468-2-0x00000000040A0000-0x00000000041E9000-memory.dmpFilesize
1.3MB
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memory/2468-0-0x0000000002370000-0x0000000002371000-memory.dmpFilesize
4KB
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memory/3832-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3832-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3832-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3832-16-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3832-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3832-20-0x0000000019370000-0x00000000195CF000-memory.dmpFilesize
2.4MB
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memory/3832-34-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3832-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3832-51-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3832-52-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3832-63-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3832-64-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3832-65-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3832-68-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB