Analysis
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max time kernel
145s -
max time network
153s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
29-06-2024 10:48
Static task
static1
Behavioral task
behavioral1
Sample
05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe
Resource
win10v2004-20240226-en
General
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Target
05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe
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Size
2.2MB
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MD5
b2f7cd55cc78132e31a4214b8a626058
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SHA1
3f381cb22c9bc77ea40a82b3af87ad5627d963b6
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SHA256
05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02
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SHA512
183629fcd29fa21560af25c5e7a4f72e0b1e988166473f18c60f968cef3415254dc8770b3ffe5a139bd2929b4d476b49f06fe8270c54831d64fc8badff7ec64e
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SSDEEP
49152:qpjNvr9ySAOmw41HHO+SASagXkJr4MDkUwm:qpjNp7p41HH8n5A
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 9 IoCs
Processes:
resource yara_rule behavioral2/memory/2084-1-0x0000000004030000-0x0000000004140000-memory.dmp family_vidar_v7 behavioral2/memory/232-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/232-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/232-9-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/232-11-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/232-12-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/232-13-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/232-14-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/232-15-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Executes dropped EXE 1 IoCs
Processes:
kat8BB5.tmppid process 232 kat8BB5.tmp -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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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:
05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exedescription pid process target process PID 2084 set thread context of 232 2084 05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe kat8BB5.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:
kat8BB5.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat8BB5.tmp Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat8BB5.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 556 timeout.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
kat8BB5.tmppid process 232 kat8BB5.tmp 232 kat8BB5.tmp 232 kat8BB5.tmp 232 kat8BB5.tmp 232 kat8BB5.tmp 232 kat8BB5.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exekat8BB5.tmpcmd.exedescription pid process target process PID 2084 wrote to memory of 232 2084 05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe kat8BB5.tmp PID 2084 wrote to memory of 232 2084 05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe kat8BB5.tmp PID 2084 wrote to memory of 232 2084 05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe kat8BB5.tmp PID 2084 wrote to memory of 232 2084 05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe kat8BB5.tmp PID 2084 wrote to memory of 232 2084 05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe kat8BB5.tmp PID 2084 wrote to memory of 232 2084 05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe kat8BB5.tmp PID 2084 wrote to memory of 232 2084 05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe kat8BB5.tmp PID 2084 wrote to memory of 232 2084 05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe kat8BB5.tmp PID 232 wrote to memory of 2644 232 kat8BB5.tmp cmd.exe PID 232 wrote to memory of 2644 232 kat8BB5.tmp cmd.exe PID 232 wrote to memory of 2644 232 kat8BB5.tmp cmd.exe PID 2644 wrote to memory of 556 2644 cmd.exe timeout.exe PID 2644 wrote to memory of 556 2644 cmd.exe timeout.exe PID 2644 wrote to memory of 556 2644 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe"C:\Users\Admin\AppData\Local\Temp\05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2084 -
C:\Users\Admin\AppData\Local\Temp\kat8BB5.tmpC:\Users\Admin\AppData\Local\Temp\kat8BB5.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:232 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat8BB5.tmp" & rd /s /q "C:\ProgramData\DBFCBGCGIJKJ" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:2644 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:556
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f