agenttesla | 49c4ccb66851d9f01f95a8c8d0b68110e8e66bfb36cdecc5637de97ab8c08082

General

Target
Invoice.exe
Size 696KB
Sample210115-lrz3prb516
SHA256 49c4ccb66851d9f01f95a8c8d0b68110e8e66bfb36cdecc5637de97ab8c08082
MD5 f1ce02a0161b6b260bef7b0ddf49412b
SHA1 a35bb9b5a57e5b1821b0bfbe33919436a565292b
SHA512 7b46e7261b07700bbe7ed0dfd0167779ab992fca71b64b82204aa917ceb848dc6e9f5f087513557d286f4d1acfaa006aaf0dea410d50401fd93fc25630ed05de
MD5 SHA1 SHA512

Score

10^/10

Family

Credentials

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

AgentTesla Payload 2 IoCs

resource	yara_rule
behavioral2/memory/1492-13-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/1492-14-0x000000000043770E-mapping.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	Invoice.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 1 IoCs

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\xxtDxM = "C:\\Users\\Admin\\AppData\\Roaming\\xxtDxM\\xxtDxM.exe"	Invoice.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 644 set thread context of 1492	644	Invoice.exe	80

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

Scheduled Task

pid	Process
2588	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	644	Invoice.exe
Token: SeDebugPrivilege	1492	Invoice.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 644 wrote to memory of 2588	644	Invoice.exe	78
PID 644 wrote to memory of 2588	644	Invoice.exe	78
PID 644 wrote to memory of 2588	644	Invoice.exe	78
PID 644 wrote to memory of 1492	644	Invoice.exe	80
PID 644 wrote to memory of 1492	644	Invoice.exe	80
PID 644 wrote to memory of 1492	644	Invoice.exe	80
PID 644 wrote to memory of 1492	644	Invoice.exe	80
PID 644 wrote to memory of 1492	644	Invoice.exe	80
PID 644 wrote to memory of 1492	644	Invoice.exe	80
PID 644 wrote to memory of 1492	644	Invoice.exe	80
PID 644 wrote to memory of 1492	644	Invoice.exe	80

C:\Users\Admin\AppData\Local\Temp\Invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:644
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HJvblDxf" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1389.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2588
- C:\Users\Admin\AppData\Local\Temp\Invoice.exe
  "{path}"
  2⤵
  - Drops file in Drivers directory
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1492