Analysis
-
max time kernel
140s -
max time network
135s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
25-05-2024 14:23
Static task
static1
Behavioral task
behavioral1
Sample
58f0f8c249da1e5d5072ef2a1471c51c24f4cb9948a94395e113da9c6fd88445.exe
Resource
win7-20240508-en
General
-
Target
58f0f8c249da1e5d5072ef2a1471c51c24f4cb9948a94395e113da9c6fd88445.exe
-
Size
2.0MB
-
MD5
b8755a500cba63ec763199d7b77c6f57
-
SHA1
2b1367027c6b7c03a7506b986a0d4b9d46e1ad11
-
SHA256
58f0f8c249da1e5d5072ef2a1471c51c24f4cb9948a94395e113da9c6fd88445
-
SHA512
dd29ab662ba9acaff9d81d190e9db301bcf0085200f85840a27066ec35bf5266b920e97bea20f00366c9d9f995ce2b4fa0e577624de553ca56e37a0f6f837a44
-
SSDEEP
49152:s4K3x1vU2JtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex182tIuoITsdZ
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 8 IoCs
Processes:
resource yara_rule behavioral2/memory/2916-2-0x0000000004080000-0x00000000041C9000-memory.dmp family_vidar_v7 behavioral2/memory/4944-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4944-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4944-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4944-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4944-18-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4944-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4944-36-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
-
Executes dropped EXE 1 IoCs
Processes:
kat568C.tmppid process 4944 kat568C.tmp -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
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:
58f0f8c249da1e5d5072ef2a1471c51c24f4cb9948a94395e113da9c6fd88445.exedescription pid process target process PID 2916 set thread context of 4944 2916 58f0f8c249da1e5d5072ef2a1471c51c24f4cb9948a94395e113da9c6fd88445.exe kat568C.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat568C.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat568C.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat568C.tmppid process 4944 kat568C.tmp 4944 kat568C.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
58f0f8c249da1e5d5072ef2a1471c51c24f4cb9948a94395e113da9c6fd88445.exedescription pid process target process PID 2916 wrote to memory of 4944 2916 58f0f8c249da1e5d5072ef2a1471c51c24f4cb9948a94395e113da9c6fd88445.exe kat568C.tmp PID 2916 wrote to memory of 4944 2916 58f0f8c249da1e5d5072ef2a1471c51c24f4cb9948a94395e113da9c6fd88445.exe kat568C.tmp PID 2916 wrote to memory of 4944 2916 58f0f8c249da1e5d5072ef2a1471c51c24f4cb9948a94395e113da9c6fd88445.exe kat568C.tmp PID 2916 wrote to memory of 4944 2916 58f0f8c249da1e5d5072ef2a1471c51c24f4cb9948a94395e113da9c6fd88445.exe kat568C.tmp PID 2916 wrote to memory of 4944 2916 58f0f8c249da1e5d5072ef2a1471c51c24f4cb9948a94395e113da9c6fd88445.exe kat568C.tmp PID 2916 wrote to memory of 4944 2916 58f0f8c249da1e5d5072ef2a1471c51c24f4cb9948a94395e113da9c6fd88445.exe kat568C.tmp PID 2916 wrote to memory of 4944 2916 58f0f8c249da1e5d5072ef2a1471c51c24f4cb9948a94395e113da9c6fd88445.exe kat568C.tmp PID 2916 wrote to memory of 4944 2916 58f0f8c249da1e5d5072ef2a1471c51c24f4cb9948a94395e113da9c6fd88445.exe kat568C.tmp
Processes
-
C:\Users\Admin\AppData\Local\Temp\58f0f8c249da1e5d5072ef2a1471c51c24f4cb9948a94395e113da9c6fd88445.exe"C:\Users\Admin\AppData\Local\Temp\58f0f8c249da1e5d5072ef2a1471c51c24f4cb9948a94395e113da9c6fd88445.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\kat568C.tmpC:\Users\Admin\AppData\Local\Temp\kat568C.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\kat568C.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
-
memory/2916-0-0x0000000002340000-0x0000000002341000-memory.dmpFilesize
4KB
-
memory/2916-2-0x0000000004080000-0x00000000041C9000-memory.dmpFilesize
1.3MB
-
memory/2916-9-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
-
memory/4944-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/4944-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/4944-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/4944-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/4944-18-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/4944-20-0x000000001B7B0000-0x000000001BA0F000-memory.dmpFilesize
2.4MB
-
memory/4944-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/4944-36-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB