agenttesla | edefb92e5128b8548482615f2d8a1728557e0a076ceb73b293b7d95333c193f9

General

Target
ib.exe
Size 353KB
Sample200721-w5ry81smps
SHA256 edefb92e5128b8548482615f2d8a1728557e0a076ceb73b293b7d95333c193f9
MD5 78c1384ca3d0943fc272bda41489fa80
SHA1 29857fb55ff08561b4d2a9b91c8c1074151cc2de
SHA512 77bbdb7338582a724531fe9d7e7c083745a0e3f936ea16e78256e84403e8df9ef2b6e64bab27cbada827890fe9b5b624a1403ae73bb1d63f2d91ce5d8738ea40
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 4 IoCs

resource	yara_rule
behavioral1/memory/1040-4-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1040-5-0x0000000000446F7E-mapping.dmp	family_agenttesla
behavioral1/memory/1040-6-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1040-7-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1492 set thread context of 1040	1492	ib.exe	26

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
336	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1040	ib.exe
1040	ib.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1040	ib.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1040	ib.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1492 wrote to memory of 336	1492	ib.exe	24
PID 1492 wrote to memory of 336	1492	ib.exe	24
PID 1492 wrote to memory of 336	1492	ib.exe	24
PID 1492 wrote to memory of 336	1492	ib.exe	24
PID 1492 wrote to memory of 1040	1492	ib.exe	26
PID 1492 wrote to memory of 1040	1492	ib.exe	26
PID 1492 wrote to memory of 1040	1492	ib.exe	26
PID 1492 wrote to memory of 1040	1492	ib.exe	26
PID 1492 wrote to memory of 1040	1492	ib.exe	26
PID 1492 wrote to memory of 1040	1492	ib.exe	26
PID 1492 wrote to memory of 1040	1492	ib.exe	26
PID 1492 wrote to memory of 1040	1492	ib.exe	26
PID 1492 wrote to memory of 1040	1492	ib.exe	26

C:\Users\Admin\AppData\Local\Temp\ib.exe
"C:\Users\Admin\AppData\Local\Temp\ib.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1492
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\saHTAuCg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5FCB.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:336
- C:\Users\Admin\AppData\Local\Temp\ib.exe
  "C:\Users\Admin\AppData\Local\Temp\ib.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1040