Analysis
-
max time kernel
134s -
max time network
124s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
27-05-2024 21:33
Static task
static1
Behavioral task
behavioral1
Sample
c693eac7b0e1be63adddfb4ba8e1cfd5c95aa628f7dc7fc22d38de9d3107ae31.exe
Resource
win10v2004-20240508-en
General
-
Target
c693eac7b0e1be63adddfb4ba8e1cfd5c95aa628f7dc7fc22d38de9d3107ae31.exe
-
Size
1.9MB
-
MD5
b2183f209872fd71401652d7e0613fcd
-
SHA1
9b4d45554a1f83a5fb16e54396a17d0c22b8b760
-
SHA256
c693eac7b0e1be63adddfb4ba8e1cfd5c95aa628f7dc7fc22d38de9d3107ae31
-
SHA512
e63793b0a615a471dd7e793d45ca44f5580ac5fd8982f7c6c2b40ed3e23281574009523ceb173bb468a3546a436f82dd1559ece28548265880736a4272096553
-
SSDEEP
49152:CdKfTn6vaJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnBtIuoITsdZ
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/1388-2-0x0000000004030000-0x0000000004179000-memory.dmp family_vidar_v7 behavioral1/memory/2380-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2380-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2380-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2380-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2380-18-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2380-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2380-36-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2380-52-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2380-53-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2380-64-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2380-65-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2380-66-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2380-67-0x0000000000400000-0x0000000000646000-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:
kat5208.tmpdescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation kat5208.tmp -
Executes dropped EXE 1 IoCs
Processes:
kat5208.tmppid process 2380 kat5208.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:
c693eac7b0e1be63adddfb4ba8e1cfd5c95aa628f7dc7fc22d38de9d3107ae31.exedescription pid process target process PID 1388 set thread context of 2380 1388 c693eac7b0e1be63adddfb4ba8e1cfd5c95aa628f7dc7fc22d38de9d3107ae31.exe kat5208.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:
kat5208.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat5208.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 672 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat5208.tmppid process 2380 kat5208.tmp 2380 kat5208.tmp 2380 kat5208.tmp 2380 kat5208.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
c693eac7b0e1be63adddfb4ba8e1cfd5c95aa628f7dc7fc22d38de9d3107ae31.exekat5208.tmpcmd.exedescription pid process target process PID 1388 wrote to memory of 2380 1388 c693eac7b0e1be63adddfb4ba8e1cfd5c95aa628f7dc7fc22d38de9d3107ae31.exe kat5208.tmp PID 1388 wrote to memory of 2380 1388 c693eac7b0e1be63adddfb4ba8e1cfd5c95aa628f7dc7fc22d38de9d3107ae31.exe kat5208.tmp PID 1388 wrote to memory of 2380 1388 c693eac7b0e1be63adddfb4ba8e1cfd5c95aa628f7dc7fc22d38de9d3107ae31.exe kat5208.tmp PID 1388 wrote to memory of 2380 1388 c693eac7b0e1be63adddfb4ba8e1cfd5c95aa628f7dc7fc22d38de9d3107ae31.exe kat5208.tmp PID 1388 wrote to memory of 2380 1388 c693eac7b0e1be63adddfb4ba8e1cfd5c95aa628f7dc7fc22d38de9d3107ae31.exe kat5208.tmp PID 1388 wrote to memory of 2380 1388 c693eac7b0e1be63adddfb4ba8e1cfd5c95aa628f7dc7fc22d38de9d3107ae31.exe kat5208.tmp PID 1388 wrote to memory of 2380 1388 c693eac7b0e1be63adddfb4ba8e1cfd5c95aa628f7dc7fc22d38de9d3107ae31.exe kat5208.tmp PID 1388 wrote to memory of 2380 1388 c693eac7b0e1be63adddfb4ba8e1cfd5c95aa628f7dc7fc22d38de9d3107ae31.exe kat5208.tmp PID 2380 wrote to memory of 3628 2380 kat5208.tmp cmd.exe PID 2380 wrote to memory of 3628 2380 kat5208.tmp cmd.exe PID 2380 wrote to memory of 3628 2380 kat5208.tmp cmd.exe PID 3628 wrote to memory of 672 3628 cmd.exe timeout.exe PID 3628 wrote to memory of 672 3628 cmd.exe timeout.exe PID 3628 wrote to memory of 672 3628 cmd.exe timeout.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\c693eac7b0e1be63adddfb4ba8e1cfd5c95aa628f7dc7fc22d38de9d3107ae31.exe"C:\Users\Admin\AppData\Local\Temp\c693eac7b0e1be63adddfb4ba8e1cfd5c95aa628f7dc7fc22d38de9d3107ae31.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1388 -
C:\Users\Admin\AppData\Local\Temp\kat5208.tmpC:\Users\Admin\AppData\Local\Temp\kat5208.tmp2⤵
- Checks computer location settings
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2380 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat5208.tmp" & rd /s /q "C:\ProgramData\IEGCBFHJDHJJ" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:3628 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:672
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\kat5208.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
-
memory/1388-10-0x0000000000400000-0x00000000005EC000-memory.dmpFilesize
1.9MB
-
memory/1388-2-0x0000000004030000-0x0000000004179000-memory.dmpFilesize
1.3MB
-
memory/1388-0-0x0000000002450000-0x0000000002451000-memory.dmpFilesize
4KB
-
memory/2380-18-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2380-36-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2380-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2380-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2380-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2380-20-0x000000001B7B0000-0x000000001BA0F000-memory.dmpFilesize
2.4MB
-
memory/2380-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2380-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2380-52-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2380-53-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2380-64-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2380-65-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2380-66-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2380-67-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB