agenttesla | 34911d76f015b110d14bd38bd308454fae7e8b550bc11aca2daab01182e1d8ea

General

Target
revised AWB..exe
Size 865KB
Sample210629-cbw182madx
SHA256 34911d76f015b110d14bd38bd308454fae7e8b550bc11aca2daab01182e1d8ea
MD5 5ad5159d18019228d900ca987886eaf5
SHA1 4bf2c4930ca9711b41d3a8ee16994a00572b427d
SHA512 6a2f594333e5f896a04a571fe8a487b8d0bc9fd06ee094d6e2fdfd05f236a68f48fd8a80c5c872b94016c451d3c7f11400e5f85df68e09f8af7d79f4e849d0ba
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

Contains code to disable Windows Defender 1 IoCs

A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

resource	yara_rule
behavioral2/memory/1420-133-0x00000000055F0000-0x0000000005AEE000-memory.dmp	disable_win_def

AgentTesla Payload 3 IoCs

resource	yara_rule
behavioral2/memory/1420-126-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/1420-127-0x000000000043764E-mapping.dmp	family_agenttesla
behavioral2/memory/1420-133-0x00000000055F0000-0x0000000005AEE000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

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

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

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 stealer

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 stealer

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-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\kprUEGC = "C:\\Users\\Admin\\AppData\\Roaming\\kprUEGC\\kprUEGC.exe"	revised AWB..exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 652 set thread context of 1420	652	revised AWB..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
1604	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	652	revised AWB..exe
Token: SeDebugPrivilege	1420	revised AWB..exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1420	revised AWB..exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 652 wrote to memory of 1604	652	revised AWB..exe	78
PID 652 wrote to memory of 1604	652	revised AWB..exe	78
PID 652 wrote to memory of 1604	652	revised AWB..exe	78
PID 652 wrote to memory of 1420	652	revised AWB..exe	80
PID 652 wrote to memory of 1420	652	revised AWB..exe	80
PID 652 wrote to memory of 1420	652	revised AWB..exe	80
PID 652 wrote to memory of 1420	652	revised AWB..exe	80
PID 652 wrote to memory of 1420	652	revised AWB..exe	80
PID 652 wrote to memory of 1420	652	revised AWB..exe	80
PID 652 wrote to memory of 1420	652	revised AWB..exe	80
PID 652 wrote to memory of 1420	652	revised AWB..exe	80

C:\Users\Admin\AppData\Local\Temp\revised AWB..exe
"C:\Users\Admin\AppData\Local\Temp\revised AWB..exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:652
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pinpLweTNl" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF5B0.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1604
- C:\Users\Admin\AppData\Local\Temp\revised AWB..exe
  "{path}"
  2⤵
  - Drops file in Drivers directory
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1420