agenttesla | 3094ea643b6c2e4dc2172349bbc1ed3b0bf85e3354b6171bd9fbf2577c491267

General

Target
outstanding invoices.exe
Size 510KB
Sample210602-p15e26mess
SHA256 3094ea643b6c2e4dc2172349bbc1ed3b0bf85e3354b6171bd9fbf2577c491267
MD5 ac99fe02ef0943c5ac1d7c7f7e062a32
SHA1 aa3798ae34d935881566475824e3afba5403206a
SHA512 cbd385cc28a0499abdc12ade3dd55f72a6cd0ac79bf828ecaf9d8519c6e90f81e402d46c4ac2d1d316da41e7e19ea965e6e0c525cdf9e91bc3857d162c5c2f64
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
behavioral1/memory/268-67-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/268-68-0x000000000043764E-mapping.dmp	family_agenttesla
behavioral1/memory/268-69-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	outstanding invoices.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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\kprUEGC = "C:\\Users\\Admin\\AppData\\Roaming\\kprUEGC\\kprUEGC.exe"	outstanding invoices.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1888 set thread context of 268	1888	outstanding invoices.exe	31

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
1648	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1888	outstanding invoices.exe
Token: SeDebugPrivilege	268	outstanding invoices.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
268	outstanding invoices.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1888 wrote to memory of 1648	1888	outstanding invoices.exe	29
PID 1888 wrote to memory of 1648	1888	outstanding invoices.exe	29
PID 1888 wrote to memory of 1648	1888	outstanding invoices.exe	29
PID 1888 wrote to memory of 1648	1888	outstanding invoices.exe	29
PID 1888 wrote to memory of 268	1888	outstanding invoices.exe	31
PID 1888 wrote to memory of 268	1888	outstanding invoices.exe	31
PID 1888 wrote to memory of 268	1888	outstanding invoices.exe	31
PID 1888 wrote to memory of 268	1888	outstanding invoices.exe	31
PID 1888 wrote to memory of 268	1888	outstanding invoices.exe	31
PID 1888 wrote to memory of 268	1888	outstanding invoices.exe	31
PID 1888 wrote to memory of 268	1888	outstanding invoices.exe	31
PID 1888 wrote to memory of 268	1888	outstanding invoices.exe	31
PID 1888 wrote to memory of 268	1888	outstanding invoices.exe	31

C:\Users\Admin\AppData\Local\Temp\outstanding invoices.exe
"C:\Users\Admin\AppData\Local\Temp\outstanding invoices.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1888
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ADZjhcHpnWzQI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9BA3.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1648
- C:\Users\Admin\AppData\Local\Temp\outstanding invoices.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:268