Analysis
- max time kernel
82s - max time network
145s - platform
windows10_x64 - resource
win10 - submitted
10/07/2020, 10:21
Static task
static1
Behavioral task
behavioral1
Sample
62231fa0b731bd0aac1c55bd8ed15898.exe
Resource
win7v200430
General
- Target 62231fa0b731bd0aac1c55bd8ed15898.exe
- Size 242KB
- Sample200710-mbeh8c7r5a
- SHA256 b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3
- MD5 62231fa0b731bd0aac1c55bd8ed15898
- SHA1 d3dd155f601bb80e417b9b0a6cf294215107af46
- SHA512 6539e010a88784c5c6c605038b2edb38c06d060543140e08c405025fd4c825f281e78993309a82dabb26148d5ad5eaf5eb0ea87f9fe95a520cd59d9c508c683c
- MD5 SHA1 SHA512
Malware Config
Extracted
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azorult
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http://195.245.112.115/index.php
Signatures
- Azorult
An information stealer that was first discovered in 2016, targeting browsing history and passwords.
- Downloads MZ/PE file
- Executes dropped EXE 6 IoCs
pid Process 3276 osaz.exe 632 rc.exe 852 ac.exe 364 ds1.exe 1176 ds2.exe 3136 osaz.exe - Loads dropped DLL 4 IoCs
pid Process 3912 62231fa0b731bd0aac1c55bd8ed15898.exe 3912 62231fa0b731bd0aac1c55bd8ed15898.exe 3912 62231fa0b731bd0aac1c55bd8ed15898.exe 3912 62231fa0b731bd0aac1c55bd8ed15898.exe - Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
- 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.
- Legitimate hosting services abused for malware hosting/C2 1 TTPs
- Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 3100 set thread context of 3912 3100 62231fa0b731bd0aac1c55bd8ed15898.exe 68 PID 3276 set thread context of 3136 3276 osaz.exe 80 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 3 IoCs
pid pid_target Process procid_target 3856 364 WerFault.exe 71 4044 852 WerFault.exe 70 1112 1176 WerFault.exe 72 - 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 62231fa0b731bd0aac1c55bd8ed15898.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 62231fa0b731bd0aac1c55bd8ed15898.exe - Delays execution with timeout.exe 1 IoCs
pid Process 1800 timeout.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3912 62231fa0b731bd0aac1c55bd8ed15898.exe 3912 62231fa0b731bd0aac1c55bd8ed15898.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeRestorePrivilege 3856 WerFault.exe Token: SeBackupPrivilege 3856 WerFault.exe - Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 3100 wrote to memory of 3276 3100 62231fa0b731bd0aac1c55bd8ed15898.exe 67 PID 3100 wrote to memory of 3276 3100 62231fa0b731bd0aac1c55bd8ed15898.exe 67 PID 3100 wrote to memory of 3276 3100 62231fa0b731bd0aac1c55bd8ed15898.exe 67 PID 3100 wrote to memory of 3912 3100 62231fa0b731bd0aac1c55bd8ed15898.exe 68 PID 3100 wrote to memory of 3912 3100 62231fa0b731bd0aac1c55bd8ed15898.exe 68 PID 3100 wrote to memory of 3912 3100 62231fa0b731bd0aac1c55bd8ed15898.exe 68 PID 3100 wrote to memory of 3912 3100 62231fa0b731bd0aac1c55bd8ed15898.exe 68 PID 3100 wrote to memory of 3912 3100 62231fa0b731bd0aac1c55bd8ed15898.exe 68 PID 3100 wrote to memory of 3912 3100 62231fa0b731bd0aac1c55bd8ed15898.exe 68 PID 3100 wrote to memory of 3912 3100 62231fa0b731bd0aac1c55bd8ed15898.exe 68 PID 3100 wrote to memory of 3912 3100 62231fa0b731bd0aac1c55bd8ed15898.exe 68 PID 3100 wrote to memory of 3912 3100 62231fa0b731bd0aac1c55bd8ed15898.exe 68 PID 3912 wrote to memory of 632 3912 62231fa0b731bd0aac1c55bd8ed15898.exe 69 PID 3912 wrote to memory of 632 3912 62231fa0b731bd0aac1c55bd8ed15898.exe 69 PID 3912 wrote to memory of 632 3912 62231fa0b731bd0aac1c55bd8ed15898.exe 69 PID 3912 wrote to memory of 852 3912 62231fa0b731bd0aac1c55bd8ed15898.exe 70 PID 3912 wrote to memory of 852 3912 62231fa0b731bd0aac1c55bd8ed15898.exe 70 PID 3912 wrote to memory of 852 3912 62231fa0b731bd0aac1c55bd8ed15898.exe 70 PID 3912 wrote to memory of 364 3912 62231fa0b731bd0aac1c55bd8ed15898.exe 71 PID 3912 wrote to memory of 364 3912 62231fa0b731bd0aac1c55bd8ed15898.exe 71 PID 3912 wrote to memory of 364 3912 62231fa0b731bd0aac1c55bd8ed15898.exe 71 PID 3912 wrote to memory of 1176 3912 62231fa0b731bd0aac1c55bd8ed15898.exe 72 PID 3912 wrote to memory of 1176 3912 62231fa0b731bd0aac1c55bd8ed15898.exe 72 PID 3912 wrote to memory of 1176 3912 62231fa0b731bd0aac1c55bd8ed15898.exe 72 PID 3912 wrote to memory of 1492 3912 62231fa0b731bd0aac1c55bd8ed15898.exe 73 PID 3912 wrote to memory of 1492 3912 62231fa0b731bd0aac1c55bd8ed15898.exe 73 PID 3912 wrote to memory of 1492 3912 62231fa0b731bd0aac1c55bd8ed15898.exe 73 PID 1492 wrote to memory of 1800 1492 cmd.exe 75 PID 1492 wrote to memory of 1800 1492 cmd.exe 75 PID 1492 wrote to memory of 1800 1492 cmd.exe 75 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76 PID 632 wrote to memory of 2160 632 rc.exe 76
Processes
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C:\Users\Admin\AppData\Local\Temp\62231fa0b731bd0aac1c55bd8ed15898.exe"C:\Users\Admin\AppData\Local\Temp\62231fa0b731bd0aac1c55bd8ed15898.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3100 -
C:\Users\Admin\AppData\Local\Temp\osaz.exe"C:\Users\Admin\AppData\Local\Temp\osaz.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
PID:3276 -
C:\Users\Admin\AppData\Local\Temp\osaz.exe"{path}"3⤵
- Executes dropped EXE
PID:3136
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C:\Users\Admin\AppData\Local\Temp\62231fa0b731bd0aac1c55bd8ed15898.exe"{path}"2⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3912 -
C:\Users\Admin\AppData\Local\Temp\rc.exe"C:\Users\Admin\AppData\Local\Temp\rc.exe"3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:632 -
C:\Windows\SysWOW64\TapiUnattend.exe"C:\Windows\System32\TapiUnattend.exe"4⤵PID:2160
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C:\Users\Admin\AppData\Local\Temp\ac.exe"C:\Users\Admin\AppData\Local\Temp\ac.exe"3⤵
- Executes dropped EXE
PID:852 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 852 -s 9484⤵
- Program crash
PID:4044
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C:\Users\Admin\AppData\Local\Temp\ds1.exe"C:\Users\Admin\AppData\Local\Temp\ds1.exe"3⤵
- Executes dropped EXE
PID:364 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 364 -s 9124⤵
- Program crash
- Suspicious use of AdjustPrivilegeToken
PID:3856
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C:\Users\Admin\AppData\Local\Temp\ds2.exe"C:\Users\Admin\AppData\Local\Temp\ds2.exe"3⤵
- Executes dropped EXE
PID:1176 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1176 -s 9124⤵
- Program crash
PID:1112
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c C:\Windows\system32\timeout.exe 3 & del "62231fa0b731bd0aac1c55bd8ed15898.exe"3⤵
- Suspicious use of WriteProcessMemory
PID:1492 -
C:\Windows\SysWOW64\timeout.exeC:\Windows\system32\timeout.exe 34⤵
- Delays execution with timeout.exe
PID:1800
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