Analysis
- max time kernel
129s - max time network
135s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
16/01/2023, 22:03
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220901-en
7 signatures
150 seconds
General
- Target file.exe
- Size 361KB
- Sample230116-1yb2wseb92
- SHA256 3e34fe36ff929921c1ebb88543d6375b64e7fb6bbad755ee4ef7aeaa26901bcc
- MD5 ca04dcd5445850c28afd145cb0e84fc8
- SHA1 b92800080565823d106c7a85aa570db0026b233f
- SHA512 bddaf1718f0c7caf4ab8ccec99867f5f53943d6a4192bb3279500e771b1e871341a8168dd3e0a873092fbb68c3084c9c3e23858e82127cc89afb8a36626319f2
- SSDEEP 6144:tcdCVLjsiB7WppwP51akTq9UFg4kg4sDYAj3gW9rCFXDHX:tcMVsiQpO51K4kSot
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- 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.
- Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{D2538272-5E3F-4A7E-B08E-889BDE8B1A50}.catalogItem svchost.exe File created C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{DEDCCFC0-4BAD-4012-9A04-84A82D6C571E}.catalogItem svchost.exe - Program crash 1 IoCs
pid pid_target Process procid_target 4560 1544 WerFault.exe 74 - Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 svchost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz svchost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString svchost.exe - Enumerates system info in registry 2 TTPs 2 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS svchost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU svchost.exe - Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1544 file.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1544 file.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1544 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1544 -s 16962⤵
- Program crash
PID:4560
-
-
C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k netsvcs -p1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:2552
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1544 -ip 15441⤵PID:2220