Analysis
-
max time kernel
148s -
max time network
124s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
25-05-2024 16:17
Static task
static1
Behavioral task
behavioral1
Sample
e83ecfced3d995b4b919f08101b17694514011b6eca98965bc9a3f5aca340e11.exe
Resource
win10v2004-20240426-en
General
-
Target
e83ecfced3d995b4b919f08101b17694514011b6eca98965bc9a3f5aca340e11.exe
-
Size
2.0MB
-
MD5
0e8f241b8a1e3602340c14e600e1da73
-
SHA1
80d9d8dd46879a3f96af692f636e06f55cb5de7d
-
SHA256
e83ecfced3d995b4b919f08101b17694514011b6eca98965bc9a3f5aca340e11
-
SHA512
081d0838970ce679c8c08a3f04635f0f01e4b0bb1e30e7876c0d564990015df5c799a22d15d16baec71e1c0ab868417ec6dbdfd4c7cc33ae2ac42696975d6da9
-
SSDEEP
49152:s4K3x1vUCJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18CtIuoITsdZ
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 behavioral1/memory/4012-2-0x00000000040A0000-0x00000000041E9000-memory.dmp family_vidar_v7 behavioral1/memory/1572-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1572-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1572-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1572-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1572-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1572-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1572-38-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
-
Executes dropped EXE 1 IoCs
Processes:
kat43A0.tmppid process 1572 kat43A0.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:
e83ecfced3d995b4b919f08101b17694514011b6eca98965bc9a3f5aca340e11.exedescription pid process target process PID 4012 set thread context of 1572 4012 e83ecfced3d995b4b919f08101b17694514011b6eca98965bc9a3f5aca340e11.exe kat43A0.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat43A0.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat43A0.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat43A0.tmppid process 1572 kat43A0.tmp 1572 kat43A0.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
e83ecfced3d995b4b919f08101b17694514011b6eca98965bc9a3f5aca340e11.exedescription pid process target process PID 4012 wrote to memory of 1572 4012 e83ecfced3d995b4b919f08101b17694514011b6eca98965bc9a3f5aca340e11.exe kat43A0.tmp PID 4012 wrote to memory of 1572 4012 e83ecfced3d995b4b919f08101b17694514011b6eca98965bc9a3f5aca340e11.exe kat43A0.tmp PID 4012 wrote to memory of 1572 4012 e83ecfced3d995b4b919f08101b17694514011b6eca98965bc9a3f5aca340e11.exe kat43A0.tmp PID 4012 wrote to memory of 1572 4012 e83ecfced3d995b4b919f08101b17694514011b6eca98965bc9a3f5aca340e11.exe kat43A0.tmp PID 4012 wrote to memory of 1572 4012 e83ecfced3d995b4b919f08101b17694514011b6eca98965bc9a3f5aca340e11.exe kat43A0.tmp PID 4012 wrote to memory of 1572 4012 e83ecfced3d995b4b919f08101b17694514011b6eca98965bc9a3f5aca340e11.exe kat43A0.tmp PID 4012 wrote to memory of 1572 4012 e83ecfced3d995b4b919f08101b17694514011b6eca98965bc9a3f5aca340e11.exe kat43A0.tmp PID 4012 wrote to memory of 1572 4012 e83ecfced3d995b4b919f08101b17694514011b6eca98965bc9a3f5aca340e11.exe kat43A0.tmp
Processes
-
C:\Users\Admin\AppData\Local\Temp\e83ecfced3d995b4b919f08101b17694514011b6eca98965bc9a3f5aca340e11.exe"C:\Users\Admin\AppData\Local\Temp\e83ecfced3d995b4b919f08101b17694514011b6eca98965bc9a3f5aca340e11.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4012 -
C:\Users\Admin\AppData\Local\Temp\kat43A0.tmpC:\Users\Admin\AppData\Local\Temp\kat43A0.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:1572
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\kat43A0.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
-
memory/1572-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/1572-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/1572-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/1572-19-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/1572-20-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/1572-22-0x000000001B7C0000-0x000000001BA1F000-memory.dmpFilesize
2.4MB
-
memory/1572-37-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/1572-38-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/4012-0-0x00000000008A0000-0x00000000008A1000-memory.dmpFilesize
4KB
-
memory/4012-2-0x00000000040A0000-0x00000000041E9000-memory.dmpFilesize
1.3MB
-
memory/4012-10-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB