Analysis
-
max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
24-05-2024 15:07
Static task
static1
Behavioral task
behavioral1
Sample
2721e6f517181cd3653601bfeb83881868f8b4336846cbb1cac1a88a67b3a3f5.exe
Resource
win10v2004-20240508-en
General
-
Target
2721e6f517181cd3653601bfeb83881868f8b4336846cbb1cac1a88a67b3a3f5.exe
-
Size
2.0MB
-
MD5
00bd04fcdbc66e801ce2efdcc100f838
-
SHA1
d604b4db03dc8a5b35b6ed1da9e0f9c4233eeb2a
-
SHA256
2721e6f517181cd3653601bfeb83881868f8b4336846cbb1cac1a88a67b3a3f5
-
SHA512
83ba4e2a560662b1ae2685e7f55387fbd2a665a7707a32ebacd80d033998202937d4396b463783e4f897ffe9c547b796422fb5c2c04cc3c60808fa0ee8168ddd
-
SSDEEP
49152:s4K3x1vUmJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18mtIuoITsdZ
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/996-2-0x0000000004070000-0x00000000041B9000-memory.dmp family_vidar_v7 behavioral1/memory/2708-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2708-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2708-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2708-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2708-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2708-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2708-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
-
Executes dropped EXE 1 IoCs
Processes:
kat5525.tmppid process 2708 kat5525.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:
2721e6f517181cd3653601bfeb83881868f8b4336846cbb1cac1a88a67b3a3f5.exedescription pid process target process PID 996 set thread context of 2708 996 2721e6f517181cd3653601bfeb83881868f8b4336846cbb1cac1a88a67b3a3f5.exe kat5525.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat5525.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat5525.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat5525.tmppid process 2708 kat5525.tmp 2708 kat5525.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
2721e6f517181cd3653601bfeb83881868f8b4336846cbb1cac1a88a67b3a3f5.exedescription pid process target process PID 996 wrote to memory of 2708 996 2721e6f517181cd3653601bfeb83881868f8b4336846cbb1cac1a88a67b3a3f5.exe kat5525.tmp PID 996 wrote to memory of 2708 996 2721e6f517181cd3653601bfeb83881868f8b4336846cbb1cac1a88a67b3a3f5.exe kat5525.tmp PID 996 wrote to memory of 2708 996 2721e6f517181cd3653601bfeb83881868f8b4336846cbb1cac1a88a67b3a3f5.exe kat5525.tmp PID 996 wrote to memory of 2708 996 2721e6f517181cd3653601bfeb83881868f8b4336846cbb1cac1a88a67b3a3f5.exe kat5525.tmp PID 996 wrote to memory of 2708 996 2721e6f517181cd3653601bfeb83881868f8b4336846cbb1cac1a88a67b3a3f5.exe kat5525.tmp PID 996 wrote to memory of 2708 996 2721e6f517181cd3653601bfeb83881868f8b4336846cbb1cac1a88a67b3a3f5.exe kat5525.tmp PID 996 wrote to memory of 2708 996 2721e6f517181cd3653601bfeb83881868f8b4336846cbb1cac1a88a67b3a3f5.exe kat5525.tmp PID 996 wrote to memory of 2708 996 2721e6f517181cd3653601bfeb83881868f8b4336846cbb1cac1a88a67b3a3f5.exe kat5525.tmp
Processes
-
C:\Users\Admin\AppData\Local\Temp\2721e6f517181cd3653601bfeb83881868f8b4336846cbb1cac1a88a67b3a3f5.exe"C:\Users\Admin\AppData\Local\Temp\2721e6f517181cd3653601bfeb83881868f8b4336846cbb1cac1a88a67b3a3f5.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:996 -
C:\Users\Admin\AppData\Local\Temp\kat5525.tmpC:\Users\Admin\AppData\Local\Temp\kat5525.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2708
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\kat5525.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
-
memory/996-0-0x00000000007D0000-0x00000000007D1000-memory.dmpFilesize
4KB
-
memory/996-2-0x0000000004070000-0x00000000041B9000-memory.dmpFilesize
1.3MB
-
memory/996-9-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
-
memory/2708-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2708-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2708-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2708-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2708-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2708-17-0x000000001B720000-0x000000001B97F000-memory.dmpFilesize
2.4MB
-
memory/2708-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2708-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB