Analysis
-
max time kernel
146s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
25-05-2024 20:43
Static task
static1
Behavioral task
behavioral1
Sample
8e0a29231f5a8e5e29969d94392e610d2f66fcca102ec2c833100206d5e50f4c.exe
Resource
win10v2004-20240426-en
General
-
Target
8e0a29231f5a8e5e29969d94392e610d2f66fcca102ec2c833100206d5e50f4c.exe
-
Size
2.0MB
-
MD5
a4489000bf0d63af6d171c3b1aa22c63
-
SHA1
d8212bc36523360ad0dc97952311420e9d234aa6
-
SHA256
8e0a29231f5a8e5e29969d94392e610d2f66fcca102ec2c833100206d5e50f4c
-
SHA512
180761e83655394904143a92aeadf1aa3ebd8e97677e451a1edc81dfc82514f971665efb71c75a2d5811c9058866a8e2b80c212769cfc3b245afd89317d7d176
-
SSDEEP
49152:s4K3x1vUGJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18GtIuoITsdZ
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/240-1-0x0000000004080000-0x00000000041C9000-memory.dmp family_vidar_v7 behavioral2/memory/4440-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4440-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4440-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4440-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4440-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4440-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4440-38-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
-
Executes dropped EXE 1 IoCs
Processes:
kat7A7F.tmppid process 4440 kat7A7F.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:
8e0a29231f5a8e5e29969d94392e610d2f66fcca102ec2c833100206d5e50f4c.exedescription pid process target process PID 240 set thread context of 4440 240 8e0a29231f5a8e5e29969d94392e610d2f66fcca102ec2c833100206d5e50f4c.exe kat7A7F.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat7A7F.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat7A7F.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat7A7F.tmppid process 4440 kat7A7F.tmp 4440 kat7A7F.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
8e0a29231f5a8e5e29969d94392e610d2f66fcca102ec2c833100206d5e50f4c.exedescription pid process target process PID 240 wrote to memory of 4440 240 8e0a29231f5a8e5e29969d94392e610d2f66fcca102ec2c833100206d5e50f4c.exe kat7A7F.tmp PID 240 wrote to memory of 4440 240 8e0a29231f5a8e5e29969d94392e610d2f66fcca102ec2c833100206d5e50f4c.exe kat7A7F.tmp PID 240 wrote to memory of 4440 240 8e0a29231f5a8e5e29969d94392e610d2f66fcca102ec2c833100206d5e50f4c.exe kat7A7F.tmp PID 240 wrote to memory of 4440 240 8e0a29231f5a8e5e29969d94392e610d2f66fcca102ec2c833100206d5e50f4c.exe kat7A7F.tmp PID 240 wrote to memory of 4440 240 8e0a29231f5a8e5e29969d94392e610d2f66fcca102ec2c833100206d5e50f4c.exe kat7A7F.tmp PID 240 wrote to memory of 4440 240 8e0a29231f5a8e5e29969d94392e610d2f66fcca102ec2c833100206d5e50f4c.exe kat7A7F.tmp PID 240 wrote to memory of 4440 240 8e0a29231f5a8e5e29969d94392e610d2f66fcca102ec2c833100206d5e50f4c.exe kat7A7F.tmp PID 240 wrote to memory of 4440 240 8e0a29231f5a8e5e29969d94392e610d2f66fcca102ec2c833100206d5e50f4c.exe kat7A7F.tmp
Processes
-
C:\Users\Admin\AppData\Local\Temp\8e0a29231f5a8e5e29969d94392e610d2f66fcca102ec2c833100206d5e50f4c.exe"C:\Users\Admin\AppData\Local\Temp\8e0a29231f5a8e5e29969d94392e610d2f66fcca102ec2c833100206d5e50f4c.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:240 -
C:\Users\Admin\AppData\Local\Temp\kat7A7F.tmpC:\Users\Admin\AppData\Local\Temp\kat7A7F.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4440
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\kat7A7F.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
-
memory/240-0-0x0000000002470000-0x0000000002471000-memory.dmpFilesize
4KB
-
memory/240-1-0x0000000004080000-0x00000000041C9000-memory.dmpFilesize
1.3MB
-
memory/240-9-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
-
memory/4440-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/4440-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/4440-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/4440-19-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/4440-20-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/4440-23-0x0000000026040000-0x000000002629F000-memory.dmpFilesize
2.4MB
-
memory/4440-37-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/4440-38-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB