Analysis
-
max time kernel
130s -
max time network
123s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
22-05-2024 23:08
Static task
static1
Behavioral task
behavioral1
Sample
1eda8bb6918fa03d2c4a8a0a8b3dcdc103529a2584e72a794764db21dd579fcc.exe
Resource
win10v2004-20240426-en
General
-
Target
1eda8bb6918fa03d2c4a8a0a8b3dcdc103529a2584e72a794764db21dd579fcc.exe
-
Size
2.0MB
-
MD5
ad83c901293c414734bd92cd47babe3a
-
SHA1
89165208134c4bbe9fb2ccf4bd7f5af316f2a19c
-
SHA256
1eda8bb6918fa03d2c4a8a0a8b3dcdc103529a2584e72a794764db21dd579fcc
-
SHA512
5c41b6210999a1bb451c614ced3e00f83798f5a1d937f82cef46f52057779ef30f91f8c667ff9dd24966f1073db9ee45eca2745579b399cd8be05d47d6d27439
-
SSDEEP
49152:7QzHt472DtJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHt7tIuoITsdZ
Malware Config
Extracted
stealc
Signatures
-
Detect Vidar Stealer 13 IoCs
Processes:
resource yara_rule behavioral1/memory/1236-1-0x00000000041C0000-0x0000000004309000-memory.dmp family_vidar_v7 behavioral1/memory/2484-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2484-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2484-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2484-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2484-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2484-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2484-38-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2484-54-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2484-55-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2484-66-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2484-67-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2484-68-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
-
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
kat322C.tmpdescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation kat322C.tmp -
Executes dropped EXE 1 IoCs
Processes:
kat322C.tmppid process 2484 kat322C.tmp -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
-
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
-
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
-
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Suspicious use of SetThreadContext 1 IoCs
Processes:
1eda8bb6918fa03d2c4a8a0a8b3dcdc103529a2584e72a794764db21dd579fcc.exedescription pid process target process PID 1236 set thread context of 2484 1236 1eda8bb6918fa03d2c4a8a0a8b3dcdc103529a2584e72a794764db21dd579fcc.exe kat322C.tmp -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat322C.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat322C.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 3976 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat322C.tmppid process 2484 kat322C.tmp 2484 kat322C.tmp 2484 kat322C.tmp 2484 kat322C.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
1eda8bb6918fa03d2c4a8a0a8b3dcdc103529a2584e72a794764db21dd579fcc.exekat322C.tmpcmd.exedescription pid process target process PID 1236 wrote to memory of 2484 1236 1eda8bb6918fa03d2c4a8a0a8b3dcdc103529a2584e72a794764db21dd579fcc.exe kat322C.tmp PID 1236 wrote to memory of 2484 1236 1eda8bb6918fa03d2c4a8a0a8b3dcdc103529a2584e72a794764db21dd579fcc.exe kat322C.tmp PID 1236 wrote to memory of 2484 1236 1eda8bb6918fa03d2c4a8a0a8b3dcdc103529a2584e72a794764db21dd579fcc.exe kat322C.tmp PID 1236 wrote to memory of 2484 1236 1eda8bb6918fa03d2c4a8a0a8b3dcdc103529a2584e72a794764db21dd579fcc.exe kat322C.tmp PID 1236 wrote to memory of 2484 1236 1eda8bb6918fa03d2c4a8a0a8b3dcdc103529a2584e72a794764db21dd579fcc.exe kat322C.tmp PID 1236 wrote to memory of 2484 1236 1eda8bb6918fa03d2c4a8a0a8b3dcdc103529a2584e72a794764db21dd579fcc.exe kat322C.tmp PID 1236 wrote to memory of 2484 1236 1eda8bb6918fa03d2c4a8a0a8b3dcdc103529a2584e72a794764db21dd579fcc.exe kat322C.tmp PID 1236 wrote to memory of 2484 1236 1eda8bb6918fa03d2c4a8a0a8b3dcdc103529a2584e72a794764db21dd579fcc.exe kat322C.tmp PID 2484 wrote to memory of 6068 2484 kat322C.tmp cmd.exe PID 2484 wrote to memory of 6068 2484 kat322C.tmp cmd.exe PID 2484 wrote to memory of 6068 2484 kat322C.tmp cmd.exe PID 6068 wrote to memory of 3976 6068 cmd.exe timeout.exe PID 6068 wrote to memory of 3976 6068 cmd.exe timeout.exe PID 6068 wrote to memory of 3976 6068 cmd.exe timeout.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\1eda8bb6918fa03d2c4a8a0a8b3dcdc103529a2584e72a794764db21dd579fcc.exe"C:\Users\Admin\AppData\Local\Temp\1eda8bb6918fa03d2c4a8a0a8b3dcdc103529a2584e72a794764db21dd579fcc.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\kat322C.tmpC:\Users\Admin\AppData\Local\Temp\kat322C.tmp2⤵
- Checks computer location settings
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat322C.tmp" & rd /s /q "C:\ProgramData\BFIJKEBFBFHI" & exit3⤵
- Suspicious use of WriteProcessMemory
-
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
-
C:\Users\Admin\AppData\Local\Temp\kat322C.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
-
memory/1236-10-0x0000000000400000-0x0000000000601000-memory.dmpFilesize
2.0MB
-
memory/1236-1-0x00000000041C0000-0x0000000004309000-memory.dmpFilesize
1.3MB
-
memory/1236-0-0x00000000008E0000-0x00000000008E1000-memory.dmpFilesize
4KB
-
memory/2484-20-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2484-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2484-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2484-19-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2484-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2484-22-0x000000001DC90000-0x000000001DEEF000-memory.dmpFilesize
2.4MB
-
memory/2484-37-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2484-38-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2484-54-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2484-55-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2484-66-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2484-67-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2484-68-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB