Analysis
-
max time kernel
133s -
max time network
102s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
28-05-2024 02:45
Static task
static1
Behavioral task
behavioral1
Sample
aa4ee6539dbe87923586173020c8b0e65f8eea6581d5ffed59ae27be7b1d6b01.exe
Resource
win10v2004-20240508-en
General
-
Target
aa4ee6539dbe87923586173020c8b0e65f8eea6581d5ffed59ae27be7b1d6b01.exe
-
Size
1.9MB
-
MD5
eff3c2c6d429b0b0d07867304e5da808
-
SHA1
27a4866f67fbcd1fe6faab872d6e47fa77751226
-
SHA256
aa4ee6539dbe87923586173020c8b0e65f8eea6581d5ffed59ae27be7b1d6b01
-
SHA512
83d2ab95ed7ac855c37ef4cfd86f089d06782138aa1bdae877827afe2a9b378b4ad8f19798e519bc42a363e236fe409e913fb40448c18d9732bbc4b968eb043a
-
SSDEEP
49152:CdKfTn6vuJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnNtIuoITsdZ
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/320-2-0x0000000004030000-0x0000000004179000-memory.dmp family_vidar_v7 behavioral1/memory/1268-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1268-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1268-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1268-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1268-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1268-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1268-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
-
Executes dropped EXE 1 IoCs
Processes:
kat5004.tmppid process 1268 kat5004.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:
aa4ee6539dbe87923586173020c8b0e65f8eea6581d5ffed59ae27be7b1d6b01.exedescription pid process target process PID 320 set thread context of 1268 320 aa4ee6539dbe87923586173020c8b0e65f8eea6581d5ffed59ae27be7b1d6b01.exe kat5004.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat5004.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat5004.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat5004.tmppid process 1268 kat5004.tmp 1268 kat5004.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
aa4ee6539dbe87923586173020c8b0e65f8eea6581d5ffed59ae27be7b1d6b01.exedescription pid process target process PID 320 wrote to memory of 1268 320 aa4ee6539dbe87923586173020c8b0e65f8eea6581d5ffed59ae27be7b1d6b01.exe kat5004.tmp PID 320 wrote to memory of 1268 320 aa4ee6539dbe87923586173020c8b0e65f8eea6581d5ffed59ae27be7b1d6b01.exe kat5004.tmp PID 320 wrote to memory of 1268 320 aa4ee6539dbe87923586173020c8b0e65f8eea6581d5ffed59ae27be7b1d6b01.exe kat5004.tmp PID 320 wrote to memory of 1268 320 aa4ee6539dbe87923586173020c8b0e65f8eea6581d5ffed59ae27be7b1d6b01.exe kat5004.tmp PID 320 wrote to memory of 1268 320 aa4ee6539dbe87923586173020c8b0e65f8eea6581d5ffed59ae27be7b1d6b01.exe kat5004.tmp PID 320 wrote to memory of 1268 320 aa4ee6539dbe87923586173020c8b0e65f8eea6581d5ffed59ae27be7b1d6b01.exe kat5004.tmp PID 320 wrote to memory of 1268 320 aa4ee6539dbe87923586173020c8b0e65f8eea6581d5ffed59ae27be7b1d6b01.exe kat5004.tmp PID 320 wrote to memory of 1268 320 aa4ee6539dbe87923586173020c8b0e65f8eea6581d5ffed59ae27be7b1d6b01.exe kat5004.tmp
Processes
-
C:\Users\Admin\AppData\Local\Temp\aa4ee6539dbe87923586173020c8b0e65f8eea6581d5ffed59ae27be7b1d6b01.exe"C:\Users\Admin\AppData\Local\Temp\aa4ee6539dbe87923586173020c8b0e65f8eea6581d5ffed59ae27be7b1d6b01.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:320 -
C:\Users\Admin\AppData\Local\Temp\kat5004.tmpC:\Users\Admin\AppData\Local\Temp\kat5004.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:1268
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\kat5004.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
-
memory/320-0-0x00000000007D0000-0x00000000007D1000-memory.dmpFilesize
4KB
-
memory/320-2-0x0000000004030000-0x0000000004179000-memory.dmpFilesize
1.3MB
-
memory/320-10-0x0000000000400000-0x00000000005EC000-memory.dmpFilesize
1.9MB
-
memory/1268-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/1268-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/1268-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/1268-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/1268-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/1268-17-0x000000001DB90000-0x000000001DDEF000-memory.dmpFilesize
2.4MB
-
memory/1268-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/1268-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB