Analysis
-
max time kernel
90s -
max time network
123s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
23-05-2024 01:22
Static task
static1
Behavioral task
behavioral1
Sample
9a19ce83735b38329134985a0840e60d4c49f65981a6cb48fc30d7a68608cd43.exe
Resource
win10v2004-20240226-en
General
-
Target
9a19ce83735b38329134985a0840e60d4c49f65981a6cb48fc30d7a68608cd43.exe
-
Size
2.0MB
-
MD5
3a52d37f4e4c3ac752376cfbcc26755d
-
SHA1
b8bb2de877a135c8fb4e50a297e78aefc81939e9
-
SHA256
9a19ce83735b38329134985a0840e60d4c49f65981a6cb48fc30d7a68608cd43
-
SHA512
e8abe45358606273cf82eccd4dfe9f8ef6dfa03b400f15e79db99988fb3f5faed77d228cbf30b3d3855b3ee0f35425d2c089e6fe225cb7d584afbd2deab42aa6
-
SSDEEP
49152:7QzHt472D7JtTF+TxMoxc1TU+j+dAzGwlrh:7QzHt9tIuoITsdZ
Malware Config
Extracted
stealc
Signatures
-
Detect Vidar Stealer 8 IoCs
Processes:
resource yara_rule behavioral2/memory/3352-1-0x00000000041B0000-0x00000000042F9000-memory.dmp family_vidar_v7 behavioral2/memory/3344-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3344-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3344-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3344-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3344-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3344-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3344-38-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
-
Executes dropped EXE 1 IoCs
Processes:
kat686E.tmppid process 3344 kat686E.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:
9a19ce83735b38329134985a0840e60d4c49f65981a6cb48fc30d7a68608cd43.exedescription pid process target process PID 3352 set thread context of 3344 3352 9a19ce83735b38329134985a0840e60d4c49f65981a6cb48fc30d7a68608cd43.exe kat686E.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat686E.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat686E.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat686E.tmppid process 3344 kat686E.tmp 3344 kat686E.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
9a19ce83735b38329134985a0840e60d4c49f65981a6cb48fc30d7a68608cd43.exedescription pid process target process PID 3352 wrote to memory of 3344 3352 9a19ce83735b38329134985a0840e60d4c49f65981a6cb48fc30d7a68608cd43.exe kat686E.tmp PID 3352 wrote to memory of 3344 3352 9a19ce83735b38329134985a0840e60d4c49f65981a6cb48fc30d7a68608cd43.exe kat686E.tmp PID 3352 wrote to memory of 3344 3352 9a19ce83735b38329134985a0840e60d4c49f65981a6cb48fc30d7a68608cd43.exe kat686E.tmp PID 3352 wrote to memory of 3344 3352 9a19ce83735b38329134985a0840e60d4c49f65981a6cb48fc30d7a68608cd43.exe kat686E.tmp PID 3352 wrote to memory of 3344 3352 9a19ce83735b38329134985a0840e60d4c49f65981a6cb48fc30d7a68608cd43.exe kat686E.tmp PID 3352 wrote to memory of 3344 3352 9a19ce83735b38329134985a0840e60d4c49f65981a6cb48fc30d7a68608cd43.exe kat686E.tmp PID 3352 wrote to memory of 3344 3352 9a19ce83735b38329134985a0840e60d4c49f65981a6cb48fc30d7a68608cd43.exe kat686E.tmp PID 3352 wrote to memory of 3344 3352 9a19ce83735b38329134985a0840e60d4c49f65981a6cb48fc30d7a68608cd43.exe kat686E.tmp
Processes
-
C:\Users\Admin\AppData\Local\Temp\9a19ce83735b38329134985a0840e60d4c49f65981a6cb48fc30d7a68608cd43.exe"C:\Users\Admin\AppData\Local\Temp\9a19ce83735b38329134985a0840e60d4c49f65981a6cb48fc30d7a68608cd43.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3352 -
C:\Users\Admin\AppData\Local\Temp\kat686E.tmpC:\Users\Admin\AppData\Local\Temp\kat686E.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3344
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\kat686E.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
-
memory/3344-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/3344-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/3344-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/3344-19-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/3344-20-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/3344-23-0x0000000026030000-0x000000002628F000-memory.dmpFilesize
2.4MB
-
memory/3344-37-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/3344-38-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/3352-0-0x00000000024A0000-0x00000000024A1000-memory.dmpFilesize
4KB
-
memory/3352-1-0x00000000041B0000-0x00000000042F9000-memory.dmpFilesize
1.3MB
-
memory/3352-10-0x0000000000400000-0x0000000000601000-memory.dmpFilesize
2.0MB