Analysis
-
max time kernel
90s -
max time network
123s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
24-05-2024 22:27
Static task
static1
Behavioral task
behavioral1
Sample
adcab57639c3387689b11fabefd4de9c3841451a9418139deb38b9c409d95969.exe
Resource
win10v2004-20240508-en
General
-
Target
adcab57639c3387689b11fabefd4de9c3841451a9418139deb38b9c409d95969.exe
-
Size
2.0MB
-
MD5
a953ed89ff8c2a1f443cddf8c999a6f0
-
SHA1
7692ced15a252de56d06f0da05ef356441da9cc7
-
SHA256
adcab57639c3387689b11fabefd4de9c3841451a9418139deb38b9c409d95969
-
SHA512
f2fe999b0dae7bc6aafaeafcda9ef43df00b426ddfb5efb2f4a56f21aaf0033f39da8c8f8e7e7cdc6dac59f94c624468bffbdf99a811c99081a59391a0eeaf4f
-
SSDEEP
49152:s4K3x1vUGJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18GtIuoITsdZ
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 behavioral2/memory/1668-2-0x00000000041C0000-0x0000000004309000-memory.dmp family_vidar_v7 behavioral2/memory/2444-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2444-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2444-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2444-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2444-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2444-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2444-38-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2444-54-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2444-55-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2444-66-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2444-67-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2444-68-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2444-71-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
-
Executes dropped EXE 1 IoCs
Processes:
kat4314.tmppid process 2444 kat4314.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:
adcab57639c3387689b11fabefd4de9c3841451a9418139deb38b9c409d95969.exedescription pid process target process PID 1668 set thread context of 2444 1668 adcab57639c3387689b11fabefd4de9c3841451a9418139deb38b9c409d95969.exe kat4314.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:
kat4314.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat4314.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 1644 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat4314.tmppid process 2444 kat4314.tmp 2444 kat4314.tmp 2444 kat4314.tmp 2444 kat4314.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
adcab57639c3387689b11fabefd4de9c3841451a9418139deb38b9c409d95969.exekat4314.tmpcmd.exedescription pid process target process PID 1668 wrote to memory of 2444 1668 adcab57639c3387689b11fabefd4de9c3841451a9418139deb38b9c409d95969.exe kat4314.tmp PID 1668 wrote to memory of 2444 1668 adcab57639c3387689b11fabefd4de9c3841451a9418139deb38b9c409d95969.exe kat4314.tmp PID 1668 wrote to memory of 2444 1668 adcab57639c3387689b11fabefd4de9c3841451a9418139deb38b9c409d95969.exe kat4314.tmp PID 1668 wrote to memory of 2444 1668 adcab57639c3387689b11fabefd4de9c3841451a9418139deb38b9c409d95969.exe kat4314.tmp PID 1668 wrote to memory of 2444 1668 adcab57639c3387689b11fabefd4de9c3841451a9418139deb38b9c409d95969.exe kat4314.tmp PID 1668 wrote to memory of 2444 1668 adcab57639c3387689b11fabefd4de9c3841451a9418139deb38b9c409d95969.exe kat4314.tmp PID 1668 wrote to memory of 2444 1668 adcab57639c3387689b11fabefd4de9c3841451a9418139deb38b9c409d95969.exe kat4314.tmp PID 1668 wrote to memory of 2444 1668 adcab57639c3387689b11fabefd4de9c3841451a9418139deb38b9c409d95969.exe kat4314.tmp PID 2444 wrote to memory of 2856 2444 kat4314.tmp cmd.exe PID 2444 wrote to memory of 2856 2444 kat4314.tmp cmd.exe PID 2444 wrote to memory of 2856 2444 kat4314.tmp cmd.exe PID 2856 wrote to memory of 1644 2856 cmd.exe timeout.exe PID 2856 wrote to memory of 1644 2856 cmd.exe timeout.exe PID 2856 wrote to memory of 1644 2856 cmd.exe timeout.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\adcab57639c3387689b11fabefd4de9c3841451a9418139deb38b9c409d95969.exe"C:\Users\Admin\AppData\Local\Temp\adcab57639c3387689b11fabefd4de9c3841451a9418139deb38b9c409d95969.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\kat4314.tmpC:\Users\Admin\AppData\Local\Temp\kat4314.tmp2⤵
- 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\kat4314.tmp" & rd /s /q "C:\ProgramData\KKJKKJJKJEGI" & 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\kat4314.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
-
memory/1668-10-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
-
memory/1668-2-0x00000000041C0000-0x0000000004309000-memory.dmpFilesize
1.3MB
-
memory/1668-0-0x00000000025B0000-0x00000000025B1000-memory.dmpFilesize
4KB
-
memory/2444-20-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2444-38-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2444-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2444-19-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2444-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2444-23-0x00000000260D0000-0x000000002632F000-memory.dmpFilesize
2.4MB
-
memory/2444-37-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2444-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2444-54-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2444-55-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2444-66-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2444-67-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2444-68-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2444-71-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB