Analysis
- max time kernel
142s - max time network
23s - platform
windows7_x64 - resource
win7v200430 - submitted
15/07/2020, 13:05
Static task
static1
Behavioral task
behavioral1
Sample
PO.exe
Resource
win7v200430
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
PO.exe
Resource
win10
0 signatures
0 seconds
General
- Target PO.exe
- Size 363KB
- Sample200715-dxex2zwems
- SHA256 0997df6c23c47188146000e04ad399b7ccfdbe3e9cfceed18b232b712088adee
- MD5 03a9449ae7b7d6b49034ffc0355540ec
- SHA1 d0a4f8207905ed65aca2cfc812dbd1f0b6849ebc
- SHA512 fa9df0cd4e07e9a9295a4a272ee99ca95f02ff5ed02d1daada1ae79509b044581ecd80c60651595ffc5b077bdfe9cb08d05683748afb9fa8ee803c3b602b795d
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
-
agenttesla
Credentials
-
Protocol
smtp
-
Host
mail.oxse.in
-
Port
587
-
Username
-
Password
dhruv_varship5553
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 4 IoCs
resource yara_rule behavioral1/memory/1804-4-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1804-5-0x00000000004473CE-mapping.dmp family_agenttesla behavioral1/memory/1804-6-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1804-7-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla - 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.
- Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Windows\CurrentVersion\Run\YYtJku = "C:\\Users\\Admin\\AppData\\Roaming\\YYtJku\\YYtJku.exe" PO.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1092 set thread context of 1804 1092 PO.exe 28 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1836 schtasks.exe - Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1092 PO.exe 1804 PO.exe 1804 PO.exe - Suspicious behavior: RenamesItself 1 IoCs
pid Process 1804 PO.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1092 PO.exe Token: SeDebugPrivilege 1804 PO.exe - Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 1092 wrote to memory of 1836 1092 PO.exe 26 PID 1092 wrote to memory of 1836 1092 PO.exe 26 PID 1092 wrote to memory of 1836 1092 PO.exe 26 PID 1092 wrote to memory of 1836 1092 PO.exe 26 PID 1092 wrote to memory of 1804 1092 PO.exe 28 PID 1092 wrote to memory of 1804 1092 PO.exe 28 PID 1092 wrote to memory of 1804 1092 PO.exe 28 PID 1092 wrote to memory of 1804 1092 PO.exe 28 PID 1092 wrote to memory of 1804 1092 PO.exe 28 PID 1092 wrote to memory of 1804 1092 PO.exe 28 PID 1092 wrote to memory of 1804 1092 PO.exe 28 PID 1092 wrote to memory of 1804 1092 PO.exe 28 PID 1092 wrote to memory of 1804 1092 PO.exe 28
Processes
-
C:\Users\Admin\AppData\Local\Temp\PO.exe"C:\Users\Admin\AppData\Local\Temp\PO.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1092 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZpoPisGBo" /XML "C:\Users\Admin\AppData\Local\Temp\tmp52FF.tmp"2⤵
- Creates scheduled task(s)
PID:1836
-
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C:\Users\Admin\AppData\Local\Temp\PO.exe"C:\Users\Admin\AppData\Local\Temp\PO.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
PID:1804
-