Analysis
- max time kernel
137s - max time network
122s - platform
windows10_x64 - resource
win10-en-20210920 - submitted
12/10/2021, 08:29
Static task
static1
Behavioral task
behavioral1
Sample
BANK INFORMATION.exe
Resource
win7-en-20210920
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
BANK INFORMATION.exe
Resource
win10-en-20210920
0 signatures
0 seconds
General
- Target BANK INFORMATION.exe
- Size 584KB
- Sample211012-kdlslabhd7
- SHA256 5fe1b4adea2656f28bff5b1f238e3e9a16ecc9574dfd413e31a1435a1f94c8d4
- MD5 50a1e9a777919610d93cbe7b53e04e28
- SHA1 e672e6c47b6ba87e7c85c18774c41c39aa345a93
- SHA512 60f7db8ca6210c605e61e93dec0a82280b431dc4bae0f8c0098648634692d2262ab81cb10e444345d400bc8d9fb5c3ae9ab1a97d7c81a9ff33d091946119c257
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
-
agenttesla
Credentials
-
Protocol
smtp
-
Host
sg2plcpnl0023.prod.sin2.secureserver.net
-
Port
587
-
Username
-
Password
User@40378
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 4 IoCs
resource yara_rule behavioral2/memory/3500-124-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral2/memory/3500-125-0x000000000043760E-mapping.dmp family_agenttesla behavioral2/memory/3500-130-0x0000000004E20000-0x000000000531E000-memory.dmp family_agenttesla behavioral2/memory/3500-135-0x0000000004E20000-0x000000000531E000-memory.dmp family_agenttesla - Drops file in Drivers directory 1 IoCs
description ioc Process File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe - Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run\NXLun = "C:\\Users\\Admin\\AppData\\Roaming\\NXLun\\NXLun.exe" RegSvcs.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2160 set thread context of 3500 2160 BANK INFORMATION.exe 71 - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2160 BANK INFORMATION.exe 2160 BANK INFORMATION.exe 3500 RegSvcs.exe 3500 RegSvcs.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2160 BANK INFORMATION.exe Token: SeDebugPrivilege 3500 RegSvcs.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2160 wrote to memory of 3500 2160 BANK INFORMATION.exe 71 PID 2160 wrote to memory of 3500 2160 BANK INFORMATION.exe 71 PID 2160 wrote to memory of 3500 2160 BANK INFORMATION.exe 71 PID 2160 wrote to memory of 3500 2160 BANK INFORMATION.exe 71 PID 2160 wrote to memory of 3500 2160 BANK INFORMATION.exe 71 PID 2160 wrote to memory of 3500 2160 BANK INFORMATION.exe 71 PID 2160 wrote to memory of 3500 2160 BANK INFORMATION.exe 71 PID 2160 wrote to memory of 3500 2160 BANK INFORMATION.exe 71 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\BANK INFORMATION.exe"C:\Users\Admin\AppData\Local\Temp\BANK INFORMATION.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2160 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3500
-