Analysis
-
max time kernel
135s -
max time network
125s -
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 13:34
Static task
static1
Behavioral task
behavioral1
Sample
9d81a0dcfbab76b95883058d2233d8e52aa1a756f6d920b4ad6393f9a9b333b9.exe
Resource
win10v2004-20240508-en
General
-
Target
9d81a0dcfbab76b95883058d2233d8e52aa1a756f6d920b4ad6393f9a9b333b9.exe
-
Size
1.9MB
-
MD5
25390e0a7bd98274271ef4c9a11995ff
-
SHA1
f20c33523563c40dfcbda4a3fff0430502baffdc
-
SHA256
9d81a0dcfbab76b95883058d2233d8e52aa1a756f6d920b4ad6393f9a9b333b9
-
SHA512
597a007315094456fcc61ac3fa358ea3438d4f6a395651aa593b347d124509a98d2da5a2a4b0ff553aa368319dcc2bc411daec4a5ac0c02eb3e5a33c84c3d2df
-
SSDEEP
49152:CdKfTn6v2JtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnNtIuoITsdZ
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 8 IoCs
Processes:
resource yara_rule behavioral1/memory/2920-1-0x0000000004170000-0x00000000042B9000-memory.dmp family_vidar_v7 behavioral1/memory/3084-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3084-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3084-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3084-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3084-18-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3084-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3084-36-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
-
Executes dropped EXE 1 IoCs
Processes:
kat42B6.tmppid process 3084 kat42B6.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:
9d81a0dcfbab76b95883058d2233d8e52aa1a756f6d920b4ad6393f9a9b333b9.exedescription pid process target process PID 2920 set thread context of 3084 2920 9d81a0dcfbab76b95883058d2233d8e52aa1a756f6d920b4ad6393f9a9b333b9.exe kat42B6.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat42B6.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat42B6.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat42B6.tmppid process 3084 kat42B6.tmp 3084 kat42B6.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
9d81a0dcfbab76b95883058d2233d8e52aa1a756f6d920b4ad6393f9a9b333b9.exedescription pid process target process PID 2920 wrote to memory of 3084 2920 9d81a0dcfbab76b95883058d2233d8e52aa1a756f6d920b4ad6393f9a9b333b9.exe kat42B6.tmp PID 2920 wrote to memory of 3084 2920 9d81a0dcfbab76b95883058d2233d8e52aa1a756f6d920b4ad6393f9a9b333b9.exe kat42B6.tmp PID 2920 wrote to memory of 3084 2920 9d81a0dcfbab76b95883058d2233d8e52aa1a756f6d920b4ad6393f9a9b333b9.exe kat42B6.tmp PID 2920 wrote to memory of 3084 2920 9d81a0dcfbab76b95883058d2233d8e52aa1a756f6d920b4ad6393f9a9b333b9.exe kat42B6.tmp PID 2920 wrote to memory of 3084 2920 9d81a0dcfbab76b95883058d2233d8e52aa1a756f6d920b4ad6393f9a9b333b9.exe kat42B6.tmp PID 2920 wrote to memory of 3084 2920 9d81a0dcfbab76b95883058d2233d8e52aa1a756f6d920b4ad6393f9a9b333b9.exe kat42B6.tmp PID 2920 wrote to memory of 3084 2920 9d81a0dcfbab76b95883058d2233d8e52aa1a756f6d920b4ad6393f9a9b333b9.exe kat42B6.tmp PID 2920 wrote to memory of 3084 2920 9d81a0dcfbab76b95883058d2233d8e52aa1a756f6d920b4ad6393f9a9b333b9.exe kat42B6.tmp
Processes
-
C:\Users\Admin\AppData\Local\Temp\9d81a0dcfbab76b95883058d2233d8e52aa1a756f6d920b4ad6393f9a9b333b9.exe"C:\Users\Admin\AppData\Local\Temp\9d81a0dcfbab76b95883058d2233d8e52aa1a756f6d920b4ad6393f9a9b333b9.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\kat42B6.tmpC:\Users\Admin\AppData\Local\Temp\kat42B6.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\kat42B6.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
-
memory/2920-0-0x0000000002360000-0x0000000002361000-memory.dmpFilesize
4KB
-
memory/2920-1-0x0000000004170000-0x00000000042B9000-memory.dmpFilesize
1.3MB
-
memory/2920-10-0x0000000000400000-0x00000000005EC000-memory.dmpFilesize
1.9MB
-
memory/3084-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/3084-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/3084-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/3084-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/3084-18-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/3084-20-0x000000001B760000-0x000000001B9BF000-memory.dmpFilesize
2.4MB
-
memory/3084-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/3084-36-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB