Analysis
-
max time kernel
146s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
24-05-2024 23:58
Static task
static1
Behavioral task
behavioral1
Sample
6788f9d24708c77f9911e34ea6e8e226c1220b5ea11a112a3fe8c1a58ffa6a70.exe
Resource
win10v2004-20240508-en
General
-
Target
6788f9d24708c77f9911e34ea6e8e226c1220b5ea11a112a3fe8c1a58ffa6a70.exe
-
Size
2.0MB
-
MD5
fa51099ac0a93fa5466bfc001997868f
-
SHA1
eb74dad1d41b4fce18dad69602aca2ad14bb162b
-
SHA256
6788f9d24708c77f9911e34ea6e8e226c1220b5ea11a112a3fe8c1a58ffa6a70
-
SHA512
0dea335410d79f98b7829fdff6561faddf2f35f1b1971682e57a8e5cd9662c820c1971fdd86066b5e6116b70c2c928406df6c094bf793406419f5b486e71bbb2
-
SSDEEP
49152:s4K3x1vUWJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18WtIuoITsdZ
Malware Config
Extracted
stealc
Extracted
vidar
https://steamcommunity.com/profiles/76561199689717899
https://t.me/copterwin
-
user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0
Signatures
-
Detect Vidar Stealer 14 IoCs
Processes:
resource yara_rule behavioral2/memory/2920-2-0x00000000041B0000-0x00000000042F9000-memory.dmp family_vidar_v7 behavioral2/memory/4064-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4064-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4064-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4064-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4064-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4064-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4064-38-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4064-54-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4064-55-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4064-66-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4064-67-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4064-68-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4064-69-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
-
Executes dropped EXE 1 IoCs
Processes:
kat5321.tmppid process 4064 kat5321.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:
6788f9d24708c77f9911e34ea6e8e226c1220b5ea11a112a3fe8c1a58ffa6a70.exedescription pid process target process PID 2920 set thread context of 4064 2920 6788f9d24708c77f9911e34ea6e8e226c1220b5ea11a112a3fe8c1a58ffa6a70.exe kat5321.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:
kat5321.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat5321.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 4268 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat5321.tmppid process 4064 kat5321.tmp 4064 kat5321.tmp 4064 kat5321.tmp 4064 kat5321.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
6788f9d24708c77f9911e34ea6e8e226c1220b5ea11a112a3fe8c1a58ffa6a70.exekat5321.tmpcmd.exedescription pid process target process PID 2920 wrote to memory of 4064 2920 6788f9d24708c77f9911e34ea6e8e226c1220b5ea11a112a3fe8c1a58ffa6a70.exe kat5321.tmp PID 2920 wrote to memory of 4064 2920 6788f9d24708c77f9911e34ea6e8e226c1220b5ea11a112a3fe8c1a58ffa6a70.exe kat5321.tmp PID 2920 wrote to memory of 4064 2920 6788f9d24708c77f9911e34ea6e8e226c1220b5ea11a112a3fe8c1a58ffa6a70.exe kat5321.tmp PID 2920 wrote to memory of 4064 2920 6788f9d24708c77f9911e34ea6e8e226c1220b5ea11a112a3fe8c1a58ffa6a70.exe kat5321.tmp PID 2920 wrote to memory of 4064 2920 6788f9d24708c77f9911e34ea6e8e226c1220b5ea11a112a3fe8c1a58ffa6a70.exe kat5321.tmp PID 2920 wrote to memory of 4064 2920 6788f9d24708c77f9911e34ea6e8e226c1220b5ea11a112a3fe8c1a58ffa6a70.exe kat5321.tmp PID 2920 wrote to memory of 4064 2920 6788f9d24708c77f9911e34ea6e8e226c1220b5ea11a112a3fe8c1a58ffa6a70.exe kat5321.tmp PID 2920 wrote to memory of 4064 2920 6788f9d24708c77f9911e34ea6e8e226c1220b5ea11a112a3fe8c1a58ffa6a70.exe kat5321.tmp PID 4064 wrote to memory of 2216 4064 kat5321.tmp cmd.exe PID 4064 wrote to memory of 2216 4064 kat5321.tmp cmd.exe PID 4064 wrote to memory of 2216 4064 kat5321.tmp cmd.exe PID 2216 wrote to memory of 4268 2216 cmd.exe timeout.exe PID 2216 wrote to memory of 4268 2216 cmd.exe timeout.exe PID 2216 wrote to memory of 4268 2216 cmd.exe timeout.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\6788f9d24708c77f9911e34ea6e8e226c1220b5ea11a112a3fe8c1a58ffa6a70.exe"C:\Users\Admin\AppData\Local\Temp\6788f9d24708c77f9911e34ea6e8e226c1220b5ea11a112a3fe8c1a58ffa6a70.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2920 -
C:\Users\Admin\AppData\Local\Temp\kat5321.tmpC:\Users\Admin\AppData\Local\Temp\kat5321.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4064 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat5321.tmp" & rd /s /q "C:\ProgramData\JEBGIIDBKEBF" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:2216 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:4268
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f