agenttesla | 7b6327de8bc2bfeb87efeb5d5846824813caca6bba489ac19fa4c0e72b144b60

General

Target
PO-.414 Order 1.exe
Size 730KB
Sample200707-7lccrtfp7j
SHA256 7b6327de8bc2bfeb87efeb5d5846824813caca6bba489ac19fa4c0e72b144b60
MD5 7a8db372724522ffa05a45c80a921e31
SHA1 e6b2e799307a98d3c20d74e0e149bb600a7a600f
SHA512 e6100eae64112f2c61bbe37b0cdfe367e16d6e1566e30da6b5c215f06445ca462a39969d9bd0b60adaa7f0bfcf5cfd4018e5bb62ed562838478465760f2a86cb
MD5 SHA1 SHA512

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Signatures

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/1928-15-0x00000000004501DE-mapping.dmp	family_agenttesla
behavioral1/memory/1928-17-0x0000000000090000-0x00000000000E6000-memory.dmp	family_agenttesla
behavioral1/memory/1928-18-0x0000000000090000-0x00000000000E6000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

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

Executes dropped EXE 2 IoCs

pid	Process
1864	pdf.exe
1928	InstallUtil.exe

Loads dropped DLL 2 IoCs

pid	Process
752	PO-.414 Order 1.exe
1864	pdf.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 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\pdf = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\pdf.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1864 set thread context of 1928	1864	pdf.exe	28

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
752	PO-.414 Order 1.exe
752	PO-.414 Order 1.exe
752	PO-.414 Order 1.exe
1864	pdf.exe
1864	pdf.exe
1864	pdf.exe
1928	InstallUtil.exe
1928	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	752	PO-.414 Order 1.exe
Token: SeDebugPrivilege	1864	pdf.exe
Token: SeDebugPrivilege	1928	InstallUtil.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1928	InstallUtil.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 752 wrote to memory of 1048	752	PO-.414 Order 1.exe	24
PID 752 wrote to memory of 1048	752	PO-.414 Order 1.exe	24
PID 752 wrote to memory of 1048	752	PO-.414 Order 1.exe	24
PID 752 wrote to memory of 1048	752	PO-.414 Order 1.exe	24
PID 1048 wrote to memory of 1708	1048	cmd.exe	26
PID 1048 wrote to memory of 1708	1048	cmd.exe	26
PID 1048 wrote to memory of 1708	1048	cmd.exe	26
PID 1048 wrote to memory of 1708	1048	cmd.exe	26
PID 752 wrote to memory of 1864	752	PO-.414 Order 1.exe	27
PID 752 wrote to memory of 1864	752	PO-.414 Order 1.exe	27
PID 752 wrote to memory of 1864	752	PO-.414 Order 1.exe	27
PID 752 wrote to memory of 1864	752	PO-.414 Order 1.exe	27
PID 1864 wrote to memory of 1928	1864	pdf.exe	28
PID 1864 wrote to memory of 1928	1864	pdf.exe	28
PID 1864 wrote to memory of 1928	1864	pdf.exe	28
PID 1864 wrote to memory of 1928	1864	pdf.exe	28
PID 1864 wrote to memory of 1928	1864	pdf.exe	28
PID 1864 wrote to memory of 1928	1864	pdf.exe	28
PID 1864 wrote to memory of 1928	1864	pdf.exe	28
PID 1864 wrote to memory of 1928	1864	pdf.exe	28
PID 1864 wrote to memory of 1928	1864	pdf.exe	28
PID 1864 wrote to memory of 1928	1864	pdf.exe	28
PID 1864 wrote to memory of 1928	1864	pdf.exe	28
PID 1864 wrote to memory of 1928	1864	pdf.exe	28

C:\Users\Admin\AppData\Local\Temp\PO-.414 Order 1.exe
"C:\Users\Admin\AppData\Local\Temp\PO-.414 Order 1.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:752
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v pdf /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\pdf.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1048
- - C:\Windows\SysWOW64\reg.exe
    REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v pdf /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\pdf.exe"
    3⤵
    - Adds Run key to start application
    PID:1708
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\pdf.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\pdf.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1864
- - C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
    "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
    3⤵
    - Drops file in Drivers directory
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:1928