agenttesla | 0944f3834ab10e687ce2fbf96a129b3d2b385d3c77e4dcfbb448551ff7865323

General

Target
shipping documents.exe
Size 558KB
Sample210705-agv4rxvade
SHA256 0944f3834ab10e687ce2fbf96a129b3d2b385d3c77e4dcfbb448551ff7865323
MD5 d5263c635cfacdf0339397dffc9db8f6
SHA1 33489f6aa14676deb16a9362487cbb5253872d1f
SHA512 0d89133e287aa1ac3602092431aa96ebe34b7406ce2dc8bc7d56ff6ce36a42128c83105d0bc7392b6735e3b92632a1ec1d5d6501a62b6ae244ea0343f43d8184
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 3 IoCs

resource	yara_rule
behavioral2/memory/3380-126-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/3380-127-0x000000000043764E-mapping.dmp	family_agenttesla
behavioral2/memory/3380-132-0x0000000005020000-0x000000000551E000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	shipping documents.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-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\kprUEGC = "C:\\Users\\Admin\\AppData\\Roaming\\kprUEGC\\kprUEGC.exe"	shipping documents.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3172 set thread context of 3380	3172	shipping documents.exe	81

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
3976	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3172	shipping documents.exe
Token: SeDebugPrivilege	3380	shipping documents.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3380	shipping documents.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3172 wrote to memory of 3976	3172	shipping documents.exe	79
PID 3172 wrote to memory of 3976	3172	shipping documents.exe	79
PID 3172 wrote to memory of 3976	3172	shipping documents.exe	79
PID 3172 wrote to memory of 3380	3172	shipping documents.exe	81
PID 3172 wrote to memory of 3380	3172	shipping documents.exe	81
PID 3172 wrote to memory of 3380	3172	shipping documents.exe	81
PID 3172 wrote to memory of 3380	3172	shipping documents.exe	81
PID 3172 wrote to memory of 3380	3172	shipping documents.exe	81
PID 3172 wrote to memory of 3380	3172	shipping documents.exe	81
PID 3172 wrote to memory of 3380	3172	shipping documents.exe	81
PID 3172 wrote to memory of 3380	3172	shipping documents.exe	81

C:\Users\Admin\AppData\Local\Temp\shipping documents.exe
"C:\Users\Admin\AppData\Local\Temp\shipping documents.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3172
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\oCQGAveX" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAC14.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3976
- C:\Users\Admin\AppData\Local\Temp\shipping documents.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:3380