Analysis
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max time kernel
148s -
max time network
153s -
platform
windows11-21h2_x64 -
resource
win11-20240611-en -
resource tags
arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system -
submitted
01-07-2024 01:46
Static task
static1
Behavioral task
behavioral1
Sample
b53144e47aeb73e100c7f0d74d5c9739cc3ecf07c2ff915f3571aad94822293e.exe
Resource
win10v2004-20240508-en
General
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Target
b53144e47aeb73e100c7f0d74d5c9739cc3ecf07c2ff915f3571aad94822293e.exe
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Size
2.2MB
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MD5
1a7c7c20a178ef66403ea8d77af99506
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SHA1
74189153fff6d6ac7472f9167b328c479fe62edc
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SHA256
b53144e47aeb73e100c7f0d74d5c9739cc3ecf07c2ff915f3571aad94822293e
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SHA512
dceb679f5f5a6f94110976ad68c4bb9425a9ff5fd56e0b4a822414bde33a2ecfcb2f106091fcb78f087f2d506093b3fd9f48d7a31ce0a66da17b661848611d0d
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SSDEEP
24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgXTjU2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MPk21tuuIeNHYGY0LzjsJxK
Malware Config
Extracted
vidar
https://t.me/g067n
https://steamcommunity.com/profiles/76561199707802586
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0
Signatures
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Detect Vidar Stealer 16 IoCs
Processes:
resource yara_rule behavioral2/memory/1332-2-0x0000000002C70000-0x0000000002D83000-memory.dmp family_vidar_v7 behavioral2/memory/1512-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1512-10-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1512-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1512-24-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1512-25-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1512-35-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1512-36-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1512-44-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1512-45-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1512-61-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1512-62-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1512-69-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1512-74-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1512-75-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1512-78-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat7D9C.tmppid process 1512 kat7D9C.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 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:
b53144e47aeb73e100c7f0d74d5c9739cc3ecf07c2ff915f3571aad94822293e.exedescription pid process target process PID 1332 set thread context of 1512 1332 b53144e47aeb73e100c7f0d74d5c9739cc3ecf07c2ff915f3571aad94822293e.exe kat7D9C.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 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat7D9C.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat7D9C.tmp Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat7D9C.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 5036 timeout.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
kat7D9C.tmppid process 1512 kat7D9C.tmp 1512 kat7D9C.tmp 1512 kat7D9C.tmp 1512 kat7D9C.tmp 1512 kat7D9C.tmp 1512 kat7D9C.tmp 1512 kat7D9C.tmp 1512 kat7D9C.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
b53144e47aeb73e100c7f0d74d5c9739cc3ecf07c2ff915f3571aad94822293e.exekat7D9C.tmpcmd.exedescription pid process target process PID 1332 wrote to memory of 1512 1332 b53144e47aeb73e100c7f0d74d5c9739cc3ecf07c2ff915f3571aad94822293e.exe kat7D9C.tmp PID 1332 wrote to memory of 1512 1332 b53144e47aeb73e100c7f0d74d5c9739cc3ecf07c2ff915f3571aad94822293e.exe kat7D9C.tmp PID 1332 wrote to memory of 1512 1332 b53144e47aeb73e100c7f0d74d5c9739cc3ecf07c2ff915f3571aad94822293e.exe kat7D9C.tmp PID 1332 wrote to memory of 1512 1332 b53144e47aeb73e100c7f0d74d5c9739cc3ecf07c2ff915f3571aad94822293e.exe kat7D9C.tmp PID 1332 wrote to memory of 1512 1332 b53144e47aeb73e100c7f0d74d5c9739cc3ecf07c2ff915f3571aad94822293e.exe kat7D9C.tmp PID 1332 wrote to memory of 1512 1332 b53144e47aeb73e100c7f0d74d5c9739cc3ecf07c2ff915f3571aad94822293e.exe kat7D9C.tmp PID 1332 wrote to memory of 1512 1332 b53144e47aeb73e100c7f0d74d5c9739cc3ecf07c2ff915f3571aad94822293e.exe kat7D9C.tmp PID 1332 wrote to memory of 1512 1332 b53144e47aeb73e100c7f0d74d5c9739cc3ecf07c2ff915f3571aad94822293e.exe kat7D9C.tmp PID 1512 wrote to memory of 3420 1512 kat7D9C.tmp cmd.exe PID 1512 wrote to memory of 3420 1512 kat7D9C.tmp cmd.exe PID 1512 wrote to memory of 3420 1512 kat7D9C.tmp cmd.exe PID 3420 wrote to memory of 5036 3420 cmd.exe timeout.exe PID 3420 wrote to memory of 5036 3420 cmd.exe timeout.exe PID 3420 wrote to memory of 5036 3420 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b53144e47aeb73e100c7f0d74d5c9739cc3ecf07c2ff915f3571aad94822293e.exe"C:\Users\Admin\AppData\Local\Temp\b53144e47aeb73e100c7f0d74d5c9739cc3ecf07c2ff915f3571aad94822293e.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat7D9C.tmpC:\Users\Admin\AppData\Local\Temp\kat7D9C.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\kat7D9C.tmp" & rd /s /q "C:\ProgramData\AAKEGIJEHJDG" & 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\kat7D9C.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1332-9-0x0000000000400000-0x0000000000641000-memory.dmpFilesize
2.3MB
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memory/1332-2-0x0000000002C70000-0x0000000002D83000-memory.dmpFilesize
1.1MB
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memory/1332-0-0x00000000024E0000-0x00000000024E1000-memory.dmpFilesize
4KB
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memory/1512-35-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1512-36-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1512-4-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1512-24-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1512-25-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1512-27-0x00000000227B0000-0x0000000022A0F000-memory.dmpFilesize
2.4MB
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memory/1512-8-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1512-10-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1512-44-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1512-45-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1512-61-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1512-62-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1512-69-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1512-74-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1512-75-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1512-78-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB