Analysis
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max time kernel
149s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
27-05-2024 22:13
Static task
static1
Behavioral task
behavioral1
Sample
71711e79e662480753e83627a88ae88bf5d8947edc40945afbd16897b300ada3.exe
Resource
win10v2004-20240508-en
General
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Target
71711e79e662480753e83627a88ae88bf5d8947edc40945afbd16897b300ada3.exe
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Size
1.9MB
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MD5
de896d9c08cb2a448446e48cedf83b9e
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SHA1
3225ea2a4771d275ee760c465e5852115cd1e840
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SHA256
71711e79e662480753e83627a88ae88bf5d8947edc40945afbd16897b300ada3
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SHA512
242e5a59a69f11f9ea1286418f878e9937df6900de0eaf8f11bb279857cd81148072f2c378b667ac028fb5fe6300950a9923228466b88e9ae5cd2b0438cb374e
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SSDEEP
49152:CdKfTn6vmJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnVtIuoITsdZ
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/3500-3-0x0000000004060000-0x00000000041A9000-memory.dmp family_vidar_v7 behavioral2/memory/2736-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2736-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2736-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2736-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2736-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2736-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2736-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2736-49-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2736-50-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2736-61-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2736-62-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2736-63-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2736-64-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat6699.tmppid process 2736 kat6699.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:
71711e79e662480753e83627a88ae88bf5d8947edc40945afbd16897b300ada3.exedescription pid process target process PID 3500 set thread context of 2736 3500 71711e79e662480753e83627a88ae88bf5d8947edc40945afbd16897b300ada3.exe kat6699.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:
kat6699.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat6699.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 1872 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat6699.tmppid process 2736 kat6699.tmp 2736 kat6699.tmp 2736 kat6699.tmp 2736 kat6699.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
71711e79e662480753e83627a88ae88bf5d8947edc40945afbd16897b300ada3.exekat6699.tmpcmd.exedescription pid process target process PID 3500 wrote to memory of 2736 3500 71711e79e662480753e83627a88ae88bf5d8947edc40945afbd16897b300ada3.exe kat6699.tmp PID 3500 wrote to memory of 2736 3500 71711e79e662480753e83627a88ae88bf5d8947edc40945afbd16897b300ada3.exe kat6699.tmp PID 3500 wrote to memory of 2736 3500 71711e79e662480753e83627a88ae88bf5d8947edc40945afbd16897b300ada3.exe kat6699.tmp PID 3500 wrote to memory of 2736 3500 71711e79e662480753e83627a88ae88bf5d8947edc40945afbd16897b300ada3.exe kat6699.tmp PID 3500 wrote to memory of 2736 3500 71711e79e662480753e83627a88ae88bf5d8947edc40945afbd16897b300ada3.exe kat6699.tmp PID 3500 wrote to memory of 2736 3500 71711e79e662480753e83627a88ae88bf5d8947edc40945afbd16897b300ada3.exe kat6699.tmp PID 3500 wrote to memory of 2736 3500 71711e79e662480753e83627a88ae88bf5d8947edc40945afbd16897b300ada3.exe kat6699.tmp PID 3500 wrote to memory of 2736 3500 71711e79e662480753e83627a88ae88bf5d8947edc40945afbd16897b300ada3.exe kat6699.tmp PID 2736 wrote to memory of 4064 2736 kat6699.tmp cmd.exe PID 2736 wrote to memory of 4064 2736 kat6699.tmp cmd.exe PID 2736 wrote to memory of 4064 2736 kat6699.tmp cmd.exe PID 4064 wrote to memory of 1872 4064 cmd.exe timeout.exe PID 4064 wrote to memory of 1872 4064 cmd.exe timeout.exe PID 4064 wrote to memory of 1872 4064 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\71711e79e662480753e83627a88ae88bf5d8947edc40945afbd16897b300ada3.exe"C:\Users\Admin\AppData\Local\Temp\71711e79e662480753e83627a88ae88bf5d8947edc40945afbd16897b300ada3.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3500 -
C:\Users\Admin\AppData\Local\Temp\kat6699.tmpC:\Users\Admin\AppData\Local\Temp\kat6699.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2736 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat6699.tmp" & rd /s /q "C:\ProgramData\JJDBAAEGDBKK" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:4064 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:1872
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat6699.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/2736-49-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2736-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2736-18-0x0000000019370000-0x00000000195CF000-memory.dmpFilesize
2.4MB
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memory/2736-64-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2736-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2736-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2736-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2736-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2736-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2736-63-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2736-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2736-62-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2736-50-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2736-61-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3500-0-0x0000000002450000-0x0000000002451000-memory.dmpFilesize
4KB
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memory/3500-3-0x0000000004060000-0x00000000041A9000-memory.dmpFilesize
1.3MB
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memory/3500-10-0x0000000000400000-0x00000000005EC000-memory.dmpFilesize
1.9MB