Analysis
-
max time kernel
152s -
max time network
181s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
20-05-2022 22:56
Static task
static1
Behavioral task
behavioral1
Sample
MT103.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
MT103.exe
Resource
win10v2004-20220414-en
General
-
Target
MT103.exe
-
Size
446KB
-
MD5
50a9dad5978b55b81a7fb08506479570
-
SHA1
648be1895b2d47d2132dceec7d18bfa43486ee4c
-
SHA256
7815b27fca27429b09059eda7dfe2f60012d73463ab15b95d6eb624f1f7681ff
-
SHA512
764f8c7ea986dc5348f1c87373894126b2c385359c36c0d70783e311634111fd3a1fc8bef476ab6bcc8db08a0d53e57cfd312a3696885442f9315a2edbceea8f
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.yandex.ru - Port:
587 - Username:
[email protected] - Password:
Pussy12345
Signatures
-
AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
-
AgentTesla Payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/3460-134-0x0000000000400000-0x0000000000452000-memory.dmp family_agenttesla -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
MT103.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation MT103.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 Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
MT103.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MT103.exe Key opened \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MT103.exe Key opened \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MT103.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
MT103.exedescription pid process target process PID 1356 set thread context of 3460 1356 MT103.exe MT103.exe -
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.
-
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
MT103.exepid process 3460 MT103.exe 3460 MT103.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
MT103.exedescription pid process Token: SeDebugPrivilege 3460 MT103.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
MT103.exeMT103.exedescription pid process target process PID 1356 wrote to memory of 4580 1356 MT103.exe schtasks.exe PID 1356 wrote to memory of 4580 1356 MT103.exe schtasks.exe PID 1356 wrote to memory of 4580 1356 MT103.exe schtasks.exe PID 1356 wrote to memory of 3460 1356 MT103.exe MT103.exe PID 1356 wrote to memory of 3460 1356 MT103.exe MT103.exe PID 1356 wrote to memory of 3460 1356 MT103.exe MT103.exe PID 1356 wrote to memory of 3460 1356 MT103.exe MT103.exe PID 1356 wrote to memory of 3460 1356 MT103.exe MT103.exe PID 1356 wrote to memory of 3460 1356 MT103.exe MT103.exe PID 1356 wrote to memory of 3460 1356 MT103.exe MT103.exe PID 1356 wrote to memory of 3460 1356 MT103.exe MT103.exe PID 3460 wrote to memory of 3324 3460 MT103.exe netsh.exe PID 3460 wrote to memory of 3324 3460 MT103.exe netsh.exe PID 3460 wrote to memory of 3324 3460 MT103.exe netsh.exe -
outlook_office_path 1 IoCs
Processes:
MT103.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MT103.exe -
outlook_win_path 1 IoCs
Processes:
MT103.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MT103.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\MT103.exe"C:\Users\Admin\AppData\Local\Temp\MT103.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1356 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XXEsoHSDrof" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4707.tmp"2⤵
- Creates scheduled task(s)
PID:4580 -
C:\Users\Admin\AppData\Local\Temp\MT103.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:3460 -
C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵PID:3324
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
408B
MD58adbb2cb7759fdcbc51cfbf0bfd7c867
SHA1f7549e6ea430e7d64b3afb3fc27c77ed5122f85b
SHA256c67092561e4b1472672374c3439004e2bc0191d9a901cde2b8b69a2d34dc6297
SHA512f465311e884dd82e3152959b6a59ac8d6be0a056a1cfddabbcc6714079a2269cd5c09b2b8fbc87a9ec3323c531383526ae19ef24fed100dec80730fae0d79991
-
Filesize
1KB
MD5432b88d6d5b45a981ad4b500d4ecd129
SHA12ba337e060989d436ee5a3b2ede4aef3bcf8ec5a
SHA256c5f6b8b80ab4c3069fcdd4d0a57c129b8efbddc41db1adeed387d18446e55aaa
SHA512081e920f2b9565fb8ed40d0d435c38749066842137b22793428b4eb1bd104fc280ded09099d9aad4b241519d0b602a6a2d0b8c317baf29609cf7262d7dd5e33f