Analysis
-
max time kernel
149s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
26-05-2024 21:34
Static task
static1
Behavioral task
behavioral1
Sample
c0026928e2e670919b00dac6cfbd73a1470215427bea7df11a0f4319e7839c1e.exe
Resource
win10v2004-20240426-en
General
-
Target
c0026928e2e670919b00dac6cfbd73a1470215427bea7df11a0f4319e7839c1e.exe
-
Size
2.0MB
-
MD5
2f4dcb26db52ee80b6af0912aa28c5ab
-
SHA1
5d3fbdcc1d7a06faebd66e5344bad90e9df4fa6d
-
SHA256
c0026928e2e670919b00dac6cfbd73a1470215427bea7df11a0f4319e7839c1e
-
SHA512
0526aae790ca7255576c49fe5244b9288a231ed6807cde51bc2599b1e34f655373d7db1f135455e7018fbaec4522966997172db89194f6c6d7f44e9806cca49d
-
SSDEEP
49152:OePpQEJJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQEJtIuoITsdZ
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 14 IoCs
Processes:
resource yara_rule behavioral1/memory/2880-1-0x0000000003FF0000-0x0000000004139000-memory.dmp family_vidar_v7 behavioral1/memory/1048-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1048-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1048-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1048-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1048-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1048-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1048-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1048-49-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1048-50-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1048-61-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1048-62-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1048-63-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1048-66-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
-
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
kat5237.tmpdescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation kat5237.tmp -
Executes dropped EXE 1 IoCs
Processes:
kat5237.tmppid process 1048 kat5237.tmp -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
-
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
-
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
-
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:
c0026928e2e670919b00dac6cfbd73a1470215427bea7df11a0f4319e7839c1e.exedescription pid process target process PID 2880 set thread context of 1048 2880 c0026928e2e670919b00dac6cfbd73a1470215427bea7df11a0f4319e7839c1e.exe kat5237.tmp -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat5237.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat5237.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 1488 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat5237.tmppid process 1048 kat5237.tmp 1048 kat5237.tmp 1048 kat5237.tmp 1048 kat5237.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
c0026928e2e670919b00dac6cfbd73a1470215427bea7df11a0f4319e7839c1e.exekat5237.tmpcmd.exedescription pid process target process PID 2880 wrote to memory of 1048 2880 c0026928e2e670919b00dac6cfbd73a1470215427bea7df11a0f4319e7839c1e.exe kat5237.tmp PID 2880 wrote to memory of 1048 2880 c0026928e2e670919b00dac6cfbd73a1470215427bea7df11a0f4319e7839c1e.exe kat5237.tmp PID 2880 wrote to memory of 1048 2880 c0026928e2e670919b00dac6cfbd73a1470215427bea7df11a0f4319e7839c1e.exe kat5237.tmp PID 2880 wrote to memory of 1048 2880 c0026928e2e670919b00dac6cfbd73a1470215427bea7df11a0f4319e7839c1e.exe kat5237.tmp PID 2880 wrote to memory of 1048 2880 c0026928e2e670919b00dac6cfbd73a1470215427bea7df11a0f4319e7839c1e.exe kat5237.tmp PID 2880 wrote to memory of 1048 2880 c0026928e2e670919b00dac6cfbd73a1470215427bea7df11a0f4319e7839c1e.exe kat5237.tmp PID 2880 wrote to memory of 1048 2880 c0026928e2e670919b00dac6cfbd73a1470215427bea7df11a0f4319e7839c1e.exe kat5237.tmp PID 2880 wrote to memory of 1048 2880 c0026928e2e670919b00dac6cfbd73a1470215427bea7df11a0f4319e7839c1e.exe kat5237.tmp PID 1048 wrote to memory of 5000 1048 kat5237.tmp cmd.exe PID 1048 wrote to memory of 5000 1048 kat5237.tmp cmd.exe PID 1048 wrote to memory of 5000 1048 kat5237.tmp cmd.exe PID 5000 wrote to memory of 1488 5000 cmd.exe timeout.exe PID 5000 wrote to memory of 1488 5000 cmd.exe timeout.exe PID 5000 wrote to memory of 1488 5000 cmd.exe timeout.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\c0026928e2e670919b00dac6cfbd73a1470215427bea7df11a0f4319e7839c1e.exe"C:\Users\Admin\AppData\Local\Temp\c0026928e2e670919b00dac6cfbd73a1470215427bea7df11a0f4319e7839c1e.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\kat5237.tmpC:\Users\Admin\AppData\Local\Temp\kat5237.tmp2⤵
- Checks computer location settings
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat5237.tmp" & rd /s /q "C:\ProgramData\DAKJDHIEBFII" & exit3⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\kat5237.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
-
memory/1048-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/1048-61-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/1048-17-0x000000001B780000-0x000000001B9DF000-memory.dmpFilesize
2.4MB
-
memory/1048-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/1048-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/1048-66-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/1048-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/1048-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/1048-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/1048-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/1048-63-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/1048-49-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/1048-50-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/1048-62-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2880-1-0x0000000003FF0000-0x0000000004139000-memory.dmpFilesize
1.3MB
-
memory/2880-0-0x00000000008C0000-0x00000000008C1000-memory.dmpFilesize
4KB
-
memory/2880-10-0x0000000000400000-0x0000000000612000-memory.dmpFilesize
2.1MB