Analysis
-
max time kernel
132s -
max time network
106s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
25-05-2024 22:57
Static task
static1
Behavioral task
behavioral1
Sample
1127c7f40292bafad2b67216e3bb531155b4a7518fa66cebfdb644d49c5bba3c.exe
Resource
win10v2004-20240508-en
General
-
Target
1127c7f40292bafad2b67216e3bb531155b4a7518fa66cebfdb644d49c5bba3c.exe
-
Size
2.0MB
-
MD5
9d5dc4e231f602620e299ccedbd73d3f
-
SHA1
c37107fe431a28e0cc4497d4d325ad2f545cc9fd
-
SHA256
1127c7f40292bafad2b67216e3bb531155b4a7518fa66cebfdb644d49c5bba3c
-
SHA512
1456276c938d1288d22dce00521bf3ea93c004171bf373f80f3aa82d7b079829e5d3bd3c8e8a44a0d0bb0858e468c1d8556295814316e570b2a6c930d9f3269a
-
SSDEEP
49152:s4K3x1vUKJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18KtIuoITsdZ
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/632-1-0x0000000004110000-0x0000000004259000-memory.dmp family_vidar_v7 behavioral1/memory/5012-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5012-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5012-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5012-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5012-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5012-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5012-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5012-49-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5012-50-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5012-61-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5012-62-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5012-63-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5012-64-0x0000000000400000-0x0000000000646000-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:
kat762A.tmpdescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation kat762A.tmp -
Executes dropped EXE 1 IoCs
Processes:
kat762A.tmppid process 5012 kat762A.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:
1127c7f40292bafad2b67216e3bb531155b4a7518fa66cebfdb644d49c5bba3c.exedescription pid process target process PID 632 set thread context of 5012 632 1127c7f40292bafad2b67216e3bb531155b4a7518fa66cebfdb644d49c5bba3c.exe kat762A.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:
kat762A.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat762A.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 316 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat762A.tmppid process 5012 kat762A.tmp 5012 kat762A.tmp 5012 kat762A.tmp 5012 kat762A.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
1127c7f40292bafad2b67216e3bb531155b4a7518fa66cebfdb644d49c5bba3c.exekat762A.tmpcmd.exedescription pid process target process PID 632 wrote to memory of 5012 632 1127c7f40292bafad2b67216e3bb531155b4a7518fa66cebfdb644d49c5bba3c.exe kat762A.tmp PID 632 wrote to memory of 5012 632 1127c7f40292bafad2b67216e3bb531155b4a7518fa66cebfdb644d49c5bba3c.exe kat762A.tmp PID 632 wrote to memory of 5012 632 1127c7f40292bafad2b67216e3bb531155b4a7518fa66cebfdb644d49c5bba3c.exe kat762A.tmp PID 632 wrote to memory of 5012 632 1127c7f40292bafad2b67216e3bb531155b4a7518fa66cebfdb644d49c5bba3c.exe kat762A.tmp PID 632 wrote to memory of 5012 632 1127c7f40292bafad2b67216e3bb531155b4a7518fa66cebfdb644d49c5bba3c.exe kat762A.tmp PID 632 wrote to memory of 5012 632 1127c7f40292bafad2b67216e3bb531155b4a7518fa66cebfdb644d49c5bba3c.exe kat762A.tmp PID 632 wrote to memory of 5012 632 1127c7f40292bafad2b67216e3bb531155b4a7518fa66cebfdb644d49c5bba3c.exe kat762A.tmp PID 632 wrote to memory of 5012 632 1127c7f40292bafad2b67216e3bb531155b4a7518fa66cebfdb644d49c5bba3c.exe kat762A.tmp PID 5012 wrote to memory of 4464 5012 kat762A.tmp cmd.exe PID 5012 wrote to memory of 4464 5012 kat762A.tmp cmd.exe PID 5012 wrote to memory of 4464 5012 kat762A.tmp cmd.exe PID 4464 wrote to memory of 316 4464 cmd.exe timeout.exe PID 4464 wrote to memory of 316 4464 cmd.exe timeout.exe PID 4464 wrote to memory of 316 4464 cmd.exe timeout.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\1127c7f40292bafad2b67216e3bb531155b4a7518fa66cebfdb644d49c5bba3c.exe"C:\Users\Admin\AppData\Local\Temp\1127c7f40292bafad2b67216e3bb531155b4a7518fa66cebfdb644d49c5bba3c.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\kat762A.tmpC:\Users\Admin\AppData\Local\Temp\kat762A.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\kat762A.tmp" & rd /s /q "C:\ProgramData\GCGHCBKFCFBF" & 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\kat762A.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
-
memory/632-10-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
-
memory/632-1-0x0000000004110000-0x0000000004259000-memory.dmpFilesize
1.3MB
-
memory/632-0-0x00000000006F0000-0x00000000006F1000-memory.dmpFilesize
4KB
-
memory/5012-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/5012-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/5012-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/5012-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/5012-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/5012-17-0x000000001B720000-0x000000001B97F000-memory.dmpFilesize
2.4MB
-
memory/5012-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/5012-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/5012-49-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/5012-50-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/5012-61-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/5012-62-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/5012-63-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/5012-64-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB