agenttesla | 5feefba742eecb4eb287261d0d1b3ffa2a44535d88496edbc85f15975a471eaa

General

Target
ECx2xUjOPZLKfaS.exe
Size 561KB
Sample200717-cs47v2cydn
SHA256 5feefba742eecb4eb287261d0d1b3ffa2a44535d88496edbc85f15975a471eaa
MD5 5187ad82b9a49cc207d7a783207f4f8e
SHA1 2f631e82243756ed81071b9c488d21ad17fda135
SHA512 5894680227d09615ff41b383d90b2bfd07d1835284eac52c4f26c3bdc2f27fc2e2649b751840274678e218ea3571540a31f272b3d17001a3fa43a34743a5cc66
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/1864-4-0x0000000000400000-0x0000000000474000-memory.dmp	family_agenttesla
behavioral1/memory/1864-5-0x000000000044741E-mapping.dmp	family_agenttesla
behavioral1/memory/1864-7-0x0000000000400000-0x0000000000474000-memory.dmp	family_agenttesla
behavioral1/memory/1864-6-0x0000000000400000-0x0000000000474000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	ECx2xUjOPZLKfaS.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-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Windows\CurrentVersion\Run\OVDeV = "C:\\Users\\Admin\\AppData\\Roaming\\OVDeV\\OVDeV.exe"	ECx2xUjOPZLKfaS.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1068 set thread context of 1864	1068	ECx2xUjOPZLKfaS.exe	28

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
1400	schtasks.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

pid	Process
1896	REG.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1864	ECx2xUjOPZLKfaS.exe
1864	ECx2xUjOPZLKfaS.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1864	ECx2xUjOPZLKfaS.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1068 wrote to memory of 1400	1068	ECx2xUjOPZLKfaS.exe	26
PID 1068 wrote to memory of 1400	1068	ECx2xUjOPZLKfaS.exe	26
PID 1068 wrote to memory of 1400	1068	ECx2xUjOPZLKfaS.exe	26
PID 1068 wrote to memory of 1400	1068	ECx2xUjOPZLKfaS.exe	26
PID 1068 wrote to memory of 1864	1068	ECx2xUjOPZLKfaS.exe	28
PID 1068 wrote to memory of 1864	1068	ECx2xUjOPZLKfaS.exe	28
PID 1068 wrote to memory of 1864	1068	ECx2xUjOPZLKfaS.exe	28
PID 1068 wrote to memory of 1864	1068	ECx2xUjOPZLKfaS.exe	28
PID 1068 wrote to memory of 1864	1068	ECx2xUjOPZLKfaS.exe	28
PID 1068 wrote to memory of 1864	1068	ECx2xUjOPZLKfaS.exe	28
PID 1068 wrote to memory of 1864	1068	ECx2xUjOPZLKfaS.exe	28
PID 1068 wrote to memory of 1864	1068	ECx2xUjOPZLKfaS.exe	28
PID 1068 wrote to memory of 1864	1068	ECx2xUjOPZLKfaS.exe	28
PID 1864 wrote to memory of 1896	1864	ECx2xUjOPZLKfaS.exe	30
PID 1864 wrote to memory of 1896	1864	ECx2xUjOPZLKfaS.exe	30
PID 1864 wrote to memory of 1896	1864	ECx2xUjOPZLKfaS.exe	30
PID 1864 wrote to memory of 1896	1864	ECx2xUjOPZLKfaS.exe	30

C:\Users\Admin\AppData\Local\Temp\ECx2xUjOPZLKfaS.exe
"C:\Users\Admin\AppData\Local\Temp\ECx2xUjOPZLKfaS.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1068
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YquSJH" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF1DC.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1400
- C:\Users\Admin\AppData\Local\Temp\ECx2xUjOPZLKfaS.exe
  "{path}"
  2⤵
  - Drops file in Drivers directory
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1864
- - C:\Windows\SysWOW64\REG.exe
    REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System / v DisableTaskMgr / t REG_DWORD / d 1 / f
    3⤵
    - Modifies registry key
    PID:1896