agenttesla | f67337d939b7a8d33762e080856099d05b5ff3404bc285f4dd249281289f57c8

General

Target
Encomenda a Fornecedor nº 2177.exe
Size 637KB
Sample200731-8eflt657ms
SHA256 f67337d939b7a8d33762e080856099d05b5ff3404bc285f4dd249281289f57c8
MD5 05fbb43cc400bde8bbe2906e2d80d3a1
SHA1 3c9c83a029cec65cb1a45f60aca45ca2eec9215f
SHA512 7e2f6a4acac158f81ce35993b374e2e919872399bf32ce0850ecc042eb85c6c8651f0ed2f863771a2d139f499bb35ad7d26fe61f70270f753481b405e6c94eb5
MD5 SHA1 SHA512

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.gruppoei.tk
Port
587
Username
[email protected]
Password
fC%ROLz}R,(*

Signatures

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/1068-14-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1068-15-0x0000000000446E4E-mapping.dmp	family_agenttesla
behavioral1/memory/1068-17-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1068-18-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Executes dropped EXE 2 IoCs

pid	Process
528	jas.exe
1068	AddInProcess32.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jas.exe	Encomenda a Fornecedor nº 2177.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jas.exe	Encomenda a Fornecedor nº 2177.exe

Loads dropped DLL 2 IoCs

pid	Process
1588	Encomenda a Fornecedor nº 2177.exe
528	jas.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-1-5-21-2090973689-680783404-4292415065-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2090973689-680783404-4292415065-1000\Software\Microsoft\Windows\CurrentVersion\Run\jas = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\Startup\\jas.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 528 set thread context of 1068	528	jas.exe	30

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
1588	Encomenda a Fornecedor nº 2177.exe
1588	Encomenda a Fornecedor nº 2177.exe
1588	Encomenda a Fornecedor nº 2177.exe
528	jas.exe
528	jas.exe
528	jas.exe
1068	AddInProcess32.exe
1068	AddInProcess32.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1588	Encomenda a Fornecedor nº 2177.exe
Token: SeDebugPrivilege	528	jas.exe
Token: SeDebugPrivilege	1068	AddInProcess32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1068	AddInProcess32.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1588 wrote to memory of 1044	1588	Encomenda a Fornecedor nº 2177.exe	24
PID 1588 wrote to memory of 1044	1588	Encomenda a Fornecedor nº 2177.exe	24
PID 1588 wrote to memory of 1044	1588	Encomenda a Fornecedor nº 2177.exe	24
PID 1588 wrote to memory of 1044	1588	Encomenda a Fornecedor nº 2177.exe	24
PID 1044 wrote to memory of 1504	1044	cmd.exe	26
PID 1044 wrote to memory of 1504	1044	cmd.exe	26
PID 1044 wrote to memory of 1504	1044	cmd.exe	26
PID 1044 wrote to memory of 1504	1044	cmd.exe	26
PID 1588 wrote to memory of 528	1588	Encomenda a Fornecedor nº 2177.exe	29
PID 1588 wrote to memory of 528	1588	Encomenda a Fornecedor nº 2177.exe	29
PID 1588 wrote to memory of 528	1588	Encomenda a Fornecedor nº 2177.exe	29
PID 1588 wrote to memory of 528	1588	Encomenda a Fornecedor nº 2177.exe	29
PID 528 wrote to memory of 1068	528	jas.exe	30
PID 528 wrote to memory of 1068	528	jas.exe	30
PID 528 wrote to memory of 1068	528	jas.exe	30
PID 528 wrote to memory of 1068	528	jas.exe	30
PID 528 wrote to memory of 1068	528	jas.exe	30
PID 528 wrote to memory of 1068	528	jas.exe	30
PID 528 wrote to memory of 1068	528	jas.exe	30
PID 528 wrote to memory of 1068	528	jas.exe	30
PID 528 wrote to memory of 1068	528	jas.exe	30

C:\Users\Admin\AppData\Local\Temp\Encomenda a Fornecedor nº 2177.exe
"C:\Users\Admin\AppData\Local\Temp\Encomenda a Fornecedor nº 2177.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1588
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v jas /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jas.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1044
- - C:\Windows\SysWOW64\reg.exe
    REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v jas /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jas.exe"
    3⤵
    - Adds Run key to start application
    PID:1504
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jas.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jas.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:528
- - C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
    "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:1068