agenttesla | 3753be46dda5f897bfbe00944241e5b7b11d77bd0e0a919ca3a751354faf6319

General

Target

QT00342020.exe
Size

526KB
MD5

b60c3fe07b3d9b5c85124c55cc02bdc1
SHA1

b81c02952854453629491b31ad3740527ff64595
SHA256

3753be46dda5f897bfbe00944241e5b7b11d77bd0e0a919ca3a751354faf6319
SHA512

e3297bd3b7868dd6cbfa6be6feeb7eeb82c54f24460f5f5aa86fa49e44be149dce3a2c427625fca66bcdb4ef225b0d9877c3ab4baea7665b9a0d19e97a4b0b46

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
o~02Bx@Odn{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/1820-2-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1820-3-0x0000000000446F1E-mapping.dmp	family_agenttesla
behavioral1/memory/1820-4-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1820-5-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

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

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Windows\CurrentVersion\Run\newApp = "C:\\Users\\Admin\\AppData\\Roaming\\newApp\\newApp.exe"	QT00342020.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1312 set thread context of 1820	1312	QT00342020.exe	26

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1312	QT00342020.exe
1820	QT00342020.exe
1820	QT00342020.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1312	QT00342020.exe
Token: SeDebugPrivilege	1820	QT00342020.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1312 wrote to memory of 1820	1312	QT00342020.exe	26
PID 1312 wrote to memory of 1820	1312	QT00342020.exe	26
PID 1312 wrote to memory of 1820	1312	QT00342020.exe	26
PID 1312 wrote to memory of 1820	1312	QT00342020.exe	26
PID 1312 wrote to memory of 1820	1312	QT00342020.exe	26
PID 1312 wrote to memory of 1820	1312	QT00342020.exe	26
PID 1312 wrote to memory of 1820	1312	QT00342020.exe	26
PID 1312 wrote to memory of 1820	1312	QT00342020.exe	26
PID 1312 wrote to memory of 1820	1312	QT00342020.exe	26

C:\Users\Admin\AppData\Local\Temp\QT00342020.exe
"C:\Users\Admin\AppData\Local\Temp\QT00342020.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1312
- C:\Users\Admin\AppData\Local\Temp\QT00342020.exe
  "{path}"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1820

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1820-2-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1820-4-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1820-5-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

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