Analysis
-
max time kernel
124s -
max time network
314s -
platform
windows10_x64 -
resource
win10-en-20210920 -
submitted
19-10-2021 01:37
Static task
static1
Behavioral task
behavioral1
Sample
_CNXTHG2.EXE
Resource
win7-en-20211014
Behavioral task
behavioral2
Sample
_CNXTHG2.EXE
Resource
win10-en-20210920
General
-
Target
_CNXTHG2.EXE
-
Size
597KB
-
MD5
6e0929f7dd27fbd8a1e8dcc5ce64a8ab
-
SHA1
4b7d56b114757b315531e793ec1a350cc9c260e8
-
SHA256
0ddffa900afacce4077361358e7b2b84efcec6a89814d21cff463976070f2be7
-
SHA512
bfa4d9bc057c2cdd2c74a01042eaaade3123a4602354f1ce4a904beed8f5a01142943df7bd443764a2b1250a6b1e5b39e2205bbe097abdb69a5522d49cff57ce
Malware Config
Extracted
agenttesla
Protocol: ftp- Host:
ftp://ftp.omindexgroup.com/ - Port:
21 - Username:
[email protected] - Password:
UfB@t!s%IxwV
Signatures
-
AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
-
AgentTesla Payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/1244-124-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral2/memory/1244-125-0x00000000004375FE-mapping.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.
-
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
_CNXTHG2.EXEdescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 _CNXTHG2.EXE Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 _CNXTHG2.EXE Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 _CNXTHG2.EXE -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
_CNXTHG2.EXEdescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run\newapp = "C:\\Users\\Admin\\AppData\\Roaming\\newapp\\newapp.exe" _CNXTHG2.EXE -
Suspicious use of SetThreadContext 1 IoCs
Processes:
_CNXTHG2.EXEdescription pid process target process PID 2188 set thread context of 1244 2188 _CNXTHG2.EXE _CNXTHG2.EXE -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
_CNXTHG2.EXE_CNXTHG2.EXEpid process 2188 _CNXTHG2.EXE 2188 _CNXTHG2.EXE 2188 _CNXTHG2.EXE 2188 _CNXTHG2.EXE 1244 _CNXTHG2.EXE 1244 _CNXTHG2.EXE -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
_CNXTHG2.EXE_CNXTHG2.EXEdescription pid process Token: SeDebugPrivilege 2188 _CNXTHG2.EXE Token: SeDebugPrivilege 1244 _CNXTHG2.EXE -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
_CNXTHG2.EXEpid process 1244 _CNXTHG2.EXE -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
_CNXTHG2.EXEdescription pid process target process PID 2188 wrote to memory of 744 2188 _CNXTHG2.EXE _CNXTHG2.EXE PID 2188 wrote to memory of 744 2188 _CNXTHG2.EXE _CNXTHG2.EXE PID 2188 wrote to memory of 744 2188 _CNXTHG2.EXE _CNXTHG2.EXE PID 2188 wrote to memory of 1032 2188 _CNXTHG2.EXE _CNXTHG2.EXE PID 2188 wrote to memory of 1032 2188 _CNXTHG2.EXE _CNXTHG2.EXE PID 2188 wrote to memory of 1032 2188 _CNXTHG2.EXE _CNXTHG2.EXE PID 2188 wrote to memory of 1244 2188 _CNXTHG2.EXE _CNXTHG2.EXE PID 2188 wrote to memory of 1244 2188 _CNXTHG2.EXE _CNXTHG2.EXE PID 2188 wrote to memory of 1244 2188 _CNXTHG2.EXE _CNXTHG2.EXE PID 2188 wrote to memory of 1244 2188 _CNXTHG2.EXE _CNXTHG2.EXE PID 2188 wrote to memory of 1244 2188 _CNXTHG2.EXE _CNXTHG2.EXE PID 2188 wrote to memory of 1244 2188 _CNXTHG2.EXE _CNXTHG2.EXE PID 2188 wrote to memory of 1244 2188 _CNXTHG2.EXE _CNXTHG2.EXE PID 2188 wrote to memory of 1244 2188 _CNXTHG2.EXE _CNXTHG2.EXE -
outlook_office_path 1 IoCs
Processes:
_CNXTHG2.EXEdescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 _CNXTHG2.EXE -
outlook_win_path 1 IoCs
Processes:
_CNXTHG2.EXEdescription 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 _CNXTHG2.EXE
Processes
-
C:\Users\Admin\AppData\Local\Temp\_CNXTHG2.EXE"C:\Users\Admin\AppData\Local\Temp\_CNXTHG2.EXE"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2188 -
C:\Users\Admin\AppData\Local\Temp\_CNXTHG2.EXE"C:\Users\Admin\AppData\Local\Temp\_CNXTHG2.EXE"2⤵PID:744
-
C:\Users\Admin\AppData\Local\Temp\_CNXTHG2.EXE"C:\Users\Admin\AppData\Local\Temp\_CNXTHG2.EXE"2⤵PID:1032
-
C:\Users\Admin\AppData\Local\Temp\_CNXTHG2.EXE"C:\Users\Admin\AppData\Local\Temp\_CNXTHG2.EXE"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1244
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
MD5
0c2899d7c6746f42d5bbe088c777f94c
SHA1622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1
SHA2565b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458
SHA512ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078