Analysis
-
max time kernel
61s -
max time network
122s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
09-03-2021 13:15
Static task
static1
Behavioral task
behavioral1
Sample
5.exe
Resource
win7v20201028
General
-
Target
5.exe
-
Size
542KB
-
MD5
6a50d5e91b193be284aa02106ee35e97
-
SHA1
097137cb64eb18ce55c13f1e841d5312d07fbbf4
-
SHA256
82c1ccbd7db7615a982f7b8072784575972aff3f0ab4597efda9d2e7ca17b961
-
SHA512
7f79ef4c3b2cd32e6e1fe6c64d1a693115789665f705144cb912500f25f669f28ac61f709d29057b66bf2a6c1f8376b3a8ef7ccb95668cabf2d15455745f1f03
Malware Config
Signatures
-
Loads dropped DLL 2 IoCs
pid Process 4768 5.exe 4768 5.exe -
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.
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 5.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 5.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 4508 timeout.exe -
Kills process with taskkill 1 IoCs
pid Process 4052 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 4768 5.exe 4768 5.exe 4768 5.exe 4768 5.exe 4768 5.exe 4768 5.exe 4768 5.exe 4768 5.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4052 taskkill.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 4768 wrote to memory of 3432 4768 5.exe 78 PID 4768 wrote to memory of 3432 4768 5.exe 78 PID 4768 wrote to memory of 3432 4768 5.exe 78 PID 3432 wrote to memory of 4052 3432 cmd.exe 80 PID 3432 wrote to memory of 4052 3432 cmd.exe 80 PID 3432 wrote to memory of 4052 3432 cmd.exe 80 PID 3432 wrote to memory of 4508 3432 cmd.exe 82 PID 3432 wrote to memory of 4508 3432 cmd.exe 82 PID 3432 wrote to memory of 4508 3432 cmd.exe 82
Processes
-
C:\Users\Admin\AppData\Local\Temp\5.exe"C:\Users\Admin\AppData\Local\Temp\5.exe"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4768 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im 5.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\5.exe" & del C:\ProgramData\*.dll & exit2⤵
- Suspicious use of WriteProcessMemory
PID:3432 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im 5.exe /f3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4052
-
-
C:\Windows\SysWOW64\timeout.exetimeout /t 63⤵
- Delays execution with timeout.exe
PID:4508
-
-