Analysis
-
max time kernel
90s -
max time network
123s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
23-05-2024 01:31
Static task
static1
Behavioral task
behavioral1
Sample
04a4c939069d40961567895f539aa5f2b6d8e98a1095f6a17a45aafa1613de35.exe
Resource
win10v2004-20240508-en
General
-
Target
04a4c939069d40961567895f539aa5f2b6d8e98a1095f6a17a45aafa1613de35.exe
-
Size
2.0MB
-
MD5
cc63b9c7489d07e6d4fd5074accd510c
-
SHA1
d56cd93a4f4c181ad057693a77ad86fd7d41fcf1
-
SHA256
04a4c939069d40961567895f539aa5f2b6d8e98a1095f6a17a45aafa1613de35
-
SHA512
2dc3b9a470d822b7e607b07c8a7ec93a73230a77cbeb8cf485bc2b3042c7afd6ea3c10b85adc8803e339cd0d45cd63a76576bb47f01edc624f3a2d3fb17b14ac
-
SSDEEP
49152:7QzHt472DxJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHtTtIuoITsdZ
Malware Config
Extracted
stealc
Signatures
-
Detect Vidar Stealer 8 IoCs
Processes:
resource yara_rule behavioral2/memory/4616-1-0x0000000004070000-0x00000000041B9000-memory.dmp family_vidar_v7 behavioral2/memory/2220-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2220-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2220-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2220-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2220-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2220-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2220-38-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
-
Executes dropped EXE 1 IoCs
Processes:
kat5DCF.tmppid process 2220 kat5DCF.tmp -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
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:
04a4c939069d40961567895f539aa5f2b6d8e98a1095f6a17a45aafa1613de35.exedescription pid process target process PID 4616 set thread context of 2220 4616 04a4c939069d40961567895f539aa5f2b6d8e98a1095f6a17a45aafa1613de35.exe kat5DCF.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat5DCF.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat5DCF.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat5DCF.tmppid process 2220 kat5DCF.tmp 2220 kat5DCF.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
04a4c939069d40961567895f539aa5f2b6d8e98a1095f6a17a45aafa1613de35.exedescription pid process target process PID 4616 wrote to memory of 2220 4616 04a4c939069d40961567895f539aa5f2b6d8e98a1095f6a17a45aafa1613de35.exe kat5DCF.tmp PID 4616 wrote to memory of 2220 4616 04a4c939069d40961567895f539aa5f2b6d8e98a1095f6a17a45aafa1613de35.exe kat5DCF.tmp PID 4616 wrote to memory of 2220 4616 04a4c939069d40961567895f539aa5f2b6d8e98a1095f6a17a45aafa1613de35.exe kat5DCF.tmp PID 4616 wrote to memory of 2220 4616 04a4c939069d40961567895f539aa5f2b6d8e98a1095f6a17a45aafa1613de35.exe kat5DCF.tmp PID 4616 wrote to memory of 2220 4616 04a4c939069d40961567895f539aa5f2b6d8e98a1095f6a17a45aafa1613de35.exe kat5DCF.tmp PID 4616 wrote to memory of 2220 4616 04a4c939069d40961567895f539aa5f2b6d8e98a1095f6a17a45aafa1613de35.exe kat5DCF.tmp PID 4616 wrote to memory of 2220 4616 04a4c939069d40961567895f539aa5f2b6d8e98a1095f6a17a45aafa1613de35.exe kat5DCF.tmp PID 4616 wrote to memory of 2220 4616 04a4c939069d40961567895f539aa5f2b6d8e98a1095f6a17a45aafa1613de35.exe kat5DCF.tmp
Processes
-
C:\Users\Admin\AppData\Local\Temp\04a4c939069d40961567895f539aa5f2b6d8e98a1095f6a17a45aafa1613de35.exe"C:\Users\Admin\AppData\Local\Temp\04a4c939069d40961567895f539aa5f2b6d8e98a1095f6a17a45aafa1613de35.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\kat5DCF.tmpC:\Users\Admin\AppData\Local\Temp\kat5DCF.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\kat5DCF.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
-
memory/2220-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2220-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2220-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2220-19-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2220-20-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2220-22-0x00000000260F0000-0x000000002634F000-memory.dmpFilesize
2.4MB
-
memory/2220-37-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2220-38-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/4616-0-0x0000000002470000-0x0000000002471000-memory.dmpFilesize
4KB
-
memory/4616-1-0x0000000004070000-0x00000000041B9000-memory.dmpFilesize
1.3MB
-
memory/4616-10-0x0000000000400000-0x0000000000601000-memory.dmpFilesize
2.0MB