Analysis
-
max time kernel
89s -
max time network
125s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
26-05-2024 21:23
Static task
static1
Behavioral task
behavioral1
Sample
c97a44c998a3021c86053f1c39d62635e5325ba092b965f80f1d5c76ef056496.exe
Resource
win10v2004-20240508-en
General
-
Target
c97a44c998a3021c86053f1c39d62635e5325ba092b965f80f1d5c76ef056496.exe
-
Size
2.0MB
-
MD5
54d49a76ddfb49e1b2e781c6afa2e157
-
SHA1
2e60bfefe9dc136e382c27209856082e4aa4e510
-
SHA256
c97a44c998a3021c86053f1c39d62635e5325ba092b965f80f1d5c76ef056496
-
SHA512
016cfd294131d62a02c1feb0a9c1a37a9876d9f7ce879ce95e1ceb84ab62b9c52b6dbb5b8cafa8585afda43e7460587f867bbd431a7b3d5a908f3e62acf7a69f
-
SSDEEP
49152:OePpQEFJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQEFtIuoITsdZ
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/916-2-0x0000000004120000-0x0000000004269000-memory.dmp family_vidar_v7 behavioral2/memory/4676-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4676-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4676-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4676-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4676-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4676-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4676-38-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4676-54-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4676-55-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4676-66-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4676-67-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4676-68-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4676-71-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
-
Executes dropped EXE 1 IoCs
Processes:
kat6D9E.tmppid process 4676 kat6D9E.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:
c97a44c998a3021c86053f1c39d62635e5325ba092b965f80f1d5c76ef056496.exedescription pid process target process PID 916 set thread context of 4676 916 c97a44c998a3021c86053f1c39d62635e5325ba092b965f80f1d5c76ef056496.exe kat6D9E.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:
kat6D9E.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat6D9E.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 2772 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat6D9E.tmppid process 4676 kat6D9E.tmp 4676 kat6D9E.tmp 4676 kat6D9E.tmp 4676 kat6D9E.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
c97a44c998a3021c86053f1c39d62635e5325ba092b965f80f1d5c76ef056496.exekat6D9E.tmpcmd.exedescription pid process target process PID 916 wrote to memory of 4676 916 c97a44c998a3021c86053f1c39d62635e5325ba092b965f80f1d5c76ef056496.exe kat6D9E.tmp PID 916 wrote to memory of 4676 916 c97a44c998a3021c86053f1c39d62635e5325ba092b965f80f1d5c76ef056496.exe kat6D9E.tmp PID 916 wrote to memory of 4676 916 c97a44c998a3021c86053f1c39d62635e5325ba092b965f80f1d5c76ef056496.exe kat6D9E.tmp PID 916 wrote to memory of 4676 916 c97a44c998a3021c86053f1c39d62635e5325ba092b965f80f1d5c76ef056496.exe kat6D9E.tmp PID 916 wrote to memory of 4676 916 c97a44c998a3021c86053f1c39d62635e5325ba092b965f80f1d5c76ef056496.exe kat6D9E.tmp PID 916 wrote to memory of 4676 916 c97a44c998a3021c86053f1c39d62635e5325ba092b965f80f1d5c76ef056496.exe kat6D9E.tmp PID 916 wrote to memory of 4676 916 c97a44c998a3021c86053f1c39d62635e5325ba092b965f80f1d5c76ef056496.exe kat6D9E.tmp PID 916 wrote to memory of 4676 916 c97a44c998a3021c86053f1c39d62635e5325ba092b965f80f1d5c76ef056496.exe kat6D9E.tmp PID 4676 wrote to memory of 1188 4676 kat6D9E.tmp cmd.exe PID 4676 wrote to memory of 1188 4676 kat6D9E.tmp cmd.exe PID 4676 wrote to memory of 1188 4676 kat6D9E.tmp cmd.exe PID 1188 wrote to memory of 2772 1188 cmd.exe timeout.exe PID 1188 wrote to memory of 2772 1188 cmd.exe timeout.exe PID 1188 wrote to memory of 2772 1188 cmd.exe timeout.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\c97a44c998a3021c86053f1c39d62635e5325ba092b965f80f1d5c76ef056496.exe"C:\Users\Admin\AppData\Local\Temp\c97a44c998a3021c86053f1c39d62635e5325ba092b965f80f1d5c76ef056496.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:916 -
C:\Users\Admin\AppData\Local\Temp\kat6D9E.tmpC:\Users\Admin\AppData\Local\Temp\kat6D9E.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4676 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat6D9E.tmp" & rd /s /q "C:\ProgramData\HDBKJEGIEBFH" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:1188 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:2772
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\kat6D9E.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
-
memory/916-10-0x0000000000400000-0x0000000000612000-memory.dmpFilesize
2.1MB
-
memory/916-2-0x0000000004120000-0x0000000004269000-memory.dmpFilesize
1.3MB
-
memory/916-0-0x0000000002370000-0x0000000002371000-memory.dmpFilesize
4KB
-
memory/4676-20-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/4676-38-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/4676-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/4676-19-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/4676-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/4676-23-0x00000000200E0000-0x000000002033F000-memory.dmpFilesize
2.4MB
-
memory/4676-37-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/4676-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/4676-54-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/4676-55-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/4676-66-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/4676-67-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/4676-68-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/4676-71-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB