Analysis
- max time kernel
33s - max time network
112s - platform
windows10_x64 - resource
win10v20201028 - submitted
20/01/2021, 14:41
Static task
static1
Behavioral task
behavioral1
Sample
fa138b74e9f19e6d0efac8bdc3af8931.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
fa138b74e9f19e6d0efac8bdc3af8931.exe
Resource
win10v20201028
General
- Target fa138b74e9f19e6d0efac8bdc3af8931.exe
- Size 682KB
- Sample210120-d1rg7bcsvn
- SHA256 83ee84084d628a921bd29b547f6767e17d8cd89a6132f9d717d5ccab7da72fbd
- MD5 fa138b74e9f19e6d0efac8bdc3af8931
- SHA1 bd1e9ec33216f51daec93367f69773b9972f9da4
- SHA512 8cdcef53cb62e65f1617ab55988295eb4ce5e0fdb283add469765325137684b5db60a72c8ec2bda6d4a6edeab22859392d77cea346dcb136ef20e625dbb13f91
- MD5 SHA1 SHA512
Malware Config
Extracted
-
azorult
-
http://195.245.112.115/index.php
Signatures
- Azorult
An information stealer that was first discovered in 2016, targeting browsing history and passwords.
- Executes dropped EXE 1 IoCs
pid Process 4044 AddInProcess32.exe - Loads dropped DLL 6 IoCs
pid Process 4044 AddInProcess32.exe 4044 AddInProcess32.exe 4044 AddInProcess32.exe 4044 AddInProcess32.exe 4044 AddInProcess32.exe 4044 AddInProcess32.exe - 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.
- JavaScript code in executable 1 IoCs
resource yara_rule behavioral2/files/0x000100000001ab92-17.dat js - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3888 set thread context of 4044 3888 fa138b74e9f19e6d0efac8bdc3af8931.exe 76 - Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString AddInProcess32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 AddInProcess32.exe - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3888 fa138b74e9f19e6d0efac8bdc3af8931.exe 3888 fa138b74e9f19e6d0efac8bdc3af8931.exe 4044 AddInProcess32.exe 4044 AddInProcess32.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3888 fa138b74e9f19e6d0efac8bdc3af8931.exe - Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 3888 wrote to memory of 4044 3888 fa138b74e9f19e6d0efac8bdc3af8931.exe 76 PID 3888 wrote to memory of 4044 3888 fa138b74e9f19e6d0efac8bdc3af8931.exe 76 PID 3888 wrote to memory of 4044 3888 fa138b74e9f19e6d0efac8bdc3af8931.exe 76 PID 3888 wrote to memory of 4044 3888 fa138b74e9f19e6d0efac8bdc3af8931.exe 76 PID 3888 wrote to memory of 4044 3888 fa138b74e9f19e6d0efac8bdc3af8931.exe 76 PID 3888 wrote to memory of 4044 3888 fa138b74e9f19e6d0efac8bdc3af8931.exe 76 PID 3888 wrote to memory of 4044 3888 fa138b74e9f19e6d0efac8bdc3af8931.exe 76 PID 3888 wrote to memory of 4044 3888 fa138b74e9f19e6d0efac8bdc3af8931.exe 76 PID 3888 wrote to memory of 4044 3888 fa138b74e9f19e6d0efac8bdc3af8931.exe 76
Processes
-
C:\Users\Admin\AppData\Local\Temp\fa138b74e9f19e6d0efac8bdc3af8931.exe"C:\Users\Admin\AppData\Local\Temp\fa138b74e9f19e6d0efac8bdc3af8931.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3888 -
C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4044
-