Analysis
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max time kernel
90s -
max time network
92s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
25-05-2024 00:08
Static task
static1
Behavioral task
behavioral1
Sample
82db67eac4012e670a2e4f30e4b0f51537052461db9038bd628305126aa119cc.exe
Resource
win10v2004-20240426-en
General
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Target
82db67eac4012e670a2e4f30e4b0f51537052461db9038bd628305126aa119cc.exe
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Size
2.0MB
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MD5
48be8a05bfb1c60ef74068f394927c74
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SHA1
9eb58d95722e42e76a415915d6846e100892198e
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SHA256
82db67eac4012e670a2e4f30e4b0f51537052461db9038bd628305126aa119cc
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SHA512
eb28aae8d6b3512fb13e9def6cc6a100b80cb34e4123390ee0596108fefa49db40052c722e6464152bc5c869a6497c19f2fac49faf8a9cf5620233699a4c1fd3
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SSDEEP
49152:s4K3x1vU2JtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex182tIuoITsdZ
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/3552-1-0x00000000041C0000-0x0000000004309000-memory.dmp family_vidar_v7 behavioral2/memory/3976-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3976-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3976-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3976-16-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3976-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3976-34-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3976-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3976-51-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3976-52-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3976-63-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3976-64-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3976-65-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3976-68-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat824F.tmppid process 3976 kat824F.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:
82db67eac4012e670a2e4f30e4b0f51537052461db9038bd628305126aa119cc.exedescription pid process target process PID 3552 set thread context of 3976 3552 82db67eac4012e670a2e4f30e4b0f51537052461db9038bd628305126aa119cc.exe kat824F.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:
kat824F.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat824F.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 2120 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat824F.tmppid process 3976 kat824F.tmp 3976 kat824F.tmp 3976 kat824F.tmp 3976 kat824F.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
82db67eac4012e670a2e4f30e4b0f51537052461db9038bd628305126aa119cc.exekat824F.tmpcmd.exedescription pid process target process PID 3552 wrote to memory of 3976 3552 82db67eac4012e670a2e4f30e4b0f51537052461db9038bd628305126aa119cc.exe kat824F.tmp PID 3552 wrote to memory of 3976 3552 82db67eac4012e670a2e4f30e4b0f51537052461db9038bd628305126aa119cc.exe kat824F.tmp PID 3552 wrote to memory of 3976 3552 82db67eac4012e670a2e4f30e4b0f51537052461db9038bd628305126aa119cc.exe kat824F.tmp PID 3552 wrote to memory of 3976 3552 82db67eac4012e670a2e4f30e4b0f51537052461db9038bd628305126aa119cc.exe kat824F.tmp PID 3552 wrote to memory of 3976 3552 82db67eac4012e670a2e4f30e4b0f51537052461db9038bd628305126aa119cc.exe kat824F.tmp PID 3552 wrote to memory of 3976 3552 82db67eac4012e670a2e4f30e4b0f51537052461db9038bd628305126aa119cc.exe kat824F.tmp PID 3552 wrote to memory of 3976 3552 82db67eac4012e670a2e4f30e4b0f51537052461db9038bd628305126aa119cc.exe kat824F.tmp PID 3552 wrote to memory of 3976 3552 82db67eac4012e670a2e4f30e4b0f51537052461db9038bd628305126aa119cc.exe kat824F.tmp PID 3976 wrote to memory of 2760 3976 kat824F.tmp cmd.exe PID 3976 wrote to memory of 2760 3976 kat824F.tmp cmd.exe PID 3976 wrote to memory of 2760 3976 kat824F.tmp cmd.exe PID 2760 wrote to memory of 2120 2760 cmd.exe timeout.exe PID 2760 wrote to memory of 2120 2760 cmd.exe timeout.exe PID 2760 wrote to memory of 2120 2760 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\82db67eac4012e670a2e4f30e4b0f51537052461db9038bd628305126aa119cc.exe"C:\Users\Admin\AppData\Local\Temp\82db67eac4012e670a2e4f30e4b0f51537052461db9038bd628305126aa119cc.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat824F.tmpC:\Users\Admin\AppData\Local\Temp\kat824F.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat824F.tmp" & rd /s /q "C:\ProgramData\IIDAAFBGDBKJ" & exit3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat824F.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/3552-10-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
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memory/3552-1-0x00000000041C0000-0x0000000004309000-memory.dmpFilesize
1.3MB
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memory/3552-0-0x0000000002480000-0x0000000002481000-memory.dmpFilesize
4KB
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memory/3976-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3976-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3976-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3976-16-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3976-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3976-19-0x0000000019370000-0x00000000195CF000-memory.dmpFilesize
2.4MB
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memory/3976-34-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3976-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3976-51-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3976-52-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3976-63-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3976-64-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3976-65-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3976-68-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB