agenttesla | c85c5fd6257987d4386a8592e254eee58bcc3d8b7a0f8d7d2e4f7f8b5ef23f98

General

Target

RETENCIONES.exe
Size

656KB
MD5

651472198c3c8e5c47f12d08ab1b1da0
SHA1

5dc122fd24f692ab1a2e9e63938b5991a414b3e2
SHA256

834c9f7bd7ce054f4a5bef137584e93bfe8a018884cb5e9370ba0dae014de3db
SHA512

1e4f46b4f0cc287a767f6da99f0fbaf6277dce43a79d31f6445188fcec6c9e3d87164107b5bb856f94a3896a752dfce109d81a45a3706030c141b98abddfc401

Score

10^/10

agenttesla collection keylogger 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 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4456-130-0x0000000000230000-0x00000000002DA000-memory.dmp	family_agenttesla
behavioral2/memory/4800-136-0x0000000000190000-0x00000000001E0000-memory.dmp	family_agenttesla

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

RETENCIONES.exe

description pid process target process

PID 4456 set thread context of 4800 4456 RETENCIONES.exe InstallUtil.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

RETENCIONES.exeInstallUtil.exe

pid process

4456 RETENCIONES.exe
4456 RETENCIONES.exe
4456 RETENCIONES.exe
4800 InstallUtil.exe
4800 InstallUtil.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

RETENCIONES.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 4456 RETENCIONES.exe
Token: SeDebugPrivilege 4800 InstallUtil.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

InstallUtil.exe

pid process

4800 InstallUtil.exe

description	pid	process	target process
PID 4456 set thread context of 4800	4456	RETENCIONES.exe	InstallUtil.exe

pid	process
4456	RETENCIONES.exe
4456	RETENCIONES.exe
4456	RETENCIONES.exe
4800	InstallUtil.exe
4800	InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	4456	RETENCIONES.exe
Token: SeDebugPrivilege	4800	InstallUtil.exe

pid	process
4800	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

RETENCIONES.exe

description	pid	process	target process
PID 4456 wrote to memory of 4800	4456	RETENCIONES.exe	InstallUtil.exe
PID 4456 wrote to memory of 4800	4456	RETENCIONES.exe	InstallUtil.exe
PID 4456 wrote to memory of 4800	4456	RETENCIONES.exe	InstallUtil.exe
PID 4456 wrote to memory of 4800	4456	RETENCIONES.exe	InstallUtil.exe
PID 4456 wrote to memory of 4800	4456	RETENCIONES.exe	InstallUtil.exe
PID 4456 wrote to memory of 4800	4456	RETENCIONES.exe	InstallUtil.exe
PID 4456 wrote to memory of 4800	4456	RETENCIONES.exe	InstallUtil.exe
PID 4456 wrote to memory of 4800	4456	RETENCIONES.exe	InstallUtil.exe

outlook_office_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\RETENCIONES.exe
"C:\Users\Admin\AppData\Local\Temp\RETENCIONES.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4456

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:4800

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/4456-130-0x0000000000230000-0x00000000002DA000-memory.dmp

Filesize
680KB

Download
memory/4456-131-0x0000000005250000-0x00000000057F4000-memory.dmp

Filesize
5.6MB

Download
memory/4456-132-0x0000000004D90000-0x0000000004E22000-memory.dmp

Filesize
584KB

Download
memory/4456-133-0x0000000005130000-0x0000000005174000-memory.dmp

Filesize
272KB

Download
memory/4800-134-0x0000000000000000-mapping.dmp

Download
memory/4800-136-0x0000000000190000-0x00000000001E0000-memory.dmp

Filesize
320KB

Download
memory/4800-137-0x0000000004C40000-0x0000000004CDC000-memory.dmp

Filesize
624KB

Download
memory/4800-138-0x0000000005150000-0x00000000051B6000-memory.dmp

Filesize
408KB

Download
memory/4800-139-0x0000000006050000-0x00000000060A0000-memory.dmp

Filesize
320KB

Download
memory/4800-140-0x0000000005A00000-0x0000000005A0A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads