Analysis
-
max time kernel
147s -
max time network
154s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
20/05/2024, 20:25
Static task
static1
Behavioral task
behavioral1
Sample
27b09d28b14450afa2eb62e69693e76798baa117b62050051c92d1c7adad2bb6.exe
Resource
win10v2004-20240508-en
General
-
Target
27b09d28b14450afa2eb62e69693e76798baa117b62050051c92d1c7adad2bb6.exe
-
Size
2.0MB
-
MD5
520b1f26bacee0337d665f94764cf822
-
SHA1
daf8b72ea5ad4b999057b4e2a6ee2f46932770ee
-
SHA256
27b09d28b14450afa2eb62e69693e76798baa117b62050051c92d1c7adad2bb6
-
SHA512
fde5290586e158491e0dce617fe6b65a510f5e40485d3a821a8f48cd0b8439a4ffcc09c4be76e32e0d9c98e7987f8452dc5d3bc152a4620443b6b259db17fa53
-
SSDEEP
49152:IFno/jfIJtTF+TxMoxc1TU+j+dAzGkiT:IFno/jgtIuoITsdZT
Malware Config
Extracted
stealc
Signatures
-
Detect Vidar Stealer 8 IoCs
resource yara_rule behavioral2/memory/3920-1-0x00000000040F0000-0x0000000004239000-memory.dmp family_vidar_v7 behavioral2/memory/2808-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2808-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2808-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2808-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2808-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2808-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2808-38-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
-
Executes dropped EXE 1 IoCs
pid Process 2808 kat9B65.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
description pid Process procid_target PID 3920 set thread context of 2808 3920 27b09d28b14450afa2eb62e69693e76798baa117b62050051c92d1c7adad2bb6.exe 80 -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat9B65.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2808 kat9B65.tmp 2808 kat9B65.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3920 wrote to memory of 2808 3920 27b09d28b14450afa2eb62e69693e76798baa117b62050051c92d1c7adad2bb6.exe 80 PID 3920 wrote to memory of 2808 3920 27b09d28b14450afa2eb62e69693e76798baa117b62050051c92d1c7adad2bb6.exe 80 PID 3920 wrote to memory of 2808 3920 27b09d28b14450afa2eb62e69693e76798baa117b62050051c92d1c7adad2bb6.exe 80 PID 3920 wrote to memory of 2808 3920 27b09d28b14450afa2eb62e69693e76798baa117b62050051c92d1c7adad2bb6.exe 80 PID 3920 wrote to memory of 2808 3920 27b09d28b14450afa2eb62e69693e76798baa117b62050051c92d1c7adad2bb6.exe 80 PID 3920 wrote to memory of 2808 3920 27b09d28b14450afa2eb62e69693e76798baa117b62050051c92d1c7adad2bb6.exe 80 PID 3920 wrote to memory of 2808 3920 27b09d28b14450afa2eb62e69693e76798baa117b62050051c92d1c7adad2bb6.exe 80 PID 3920 wrote to memory of 2808 3920 27b09d28b14450afa2eb62e69693e76798baa117b62050051c92d1c7adad2bb6.exe 80
Processes
-
C:\Users\Admin\AppData\Local\Temp\27b09d28b14450afa2eb62e69693e76798baa117b62050051c92d1c7adad2bb6.exe"C:\Users\Admin\AppData\Local\Temp\27b09d28b14450afa2eb62e69693e76798baa117b62050051c92d1c7adad2bb6.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3920 -
C:\Users\Admin\AppData\Local\Temp\kat9B65.tmpC:\Users\Admin\AppData\Local\Temp\kat9B65.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2808
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f