agenttesla | 4ff6913b35226527d4bb0bd458d326ad3d1bdd50b90aaac6d4eae1f7f43922c1

General

Target
tt.exe
Size 705KB
Sample200709-e998qdh9s6
SHA256 4ff6913b35226527d4bb0bd458d326ad3d1bdd50b90aaac6d4eae1f7f43922c1
MD5 a7a9aeda71108fa719cfd5085113eab3
SHA1 49ed7d59f5f148622c8359c5d6934e54af1f23ee
SHA512 2a23544e966d0175043c23b28858f9fcdfeb49a2c92069905e12cb0081f95a0323d9f7272644fc059d2ede8e532577cbabcf1e82eae88ee69c12c3df0ec10b50
MD5 SHA1 SHA512

Score

10^/10

persistence spyware keylogger trojan stealer agenttesla

Malware Config

Extracted

Credentials

Protocol
smtp
Host
amazing-cool.com
Port
25
Username
[email protected]
Password
cobol888

Signatures

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
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 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

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3656 wrote to memory of 2208	3656	tt.exe	72
PID 3656 wrote to memory of 2208	3656	tt.exe	72
PID 3656 wrote to memory of 2208	3656	tt.exe	72
PID 3656 wrote to memory of 2208	3656	tt.exe	72
PID 3656 wrote to memory of 2208	3656	tt.exe	72
PID 3656 wrote to memory of 2208	3656	tt.exe	72
PID 3656 wrote to memory of 2208	3656	tt.exe	72
PID 3656 wrote to memory of 2208	3656	tt.exe	72

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3656 set thread context of 2208	3656	tt.exe	72

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2208	tt.exe
2208	tt.exe

Adds Run entry 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-1-5-21-1231583446-2617009595-2137880041-1000\Software\Microsoft\Windows\CurrentVersion\Run\NBUGIoN = "C:\\Users\\Admin\\AppData\\Roaming\\NBUGIoN\\NBUGIoN.exe"	tt.exe

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

Drops file in Drivers directory 1 IoCs

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

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2208	tt.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2208	tt.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2208	tt.exe

C:\Users\Admin\AppData\Local\Temp\tt.exe
"C:\Users\Admin\AppData\Local\Temp\tt.exe"
1⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
PID:3656
- C:\Users\Admin\AppData\Local\Temp\tt.exe
  "{path}"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Adds Run entry to start application
  - Drops file in Drivers directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious behavior: RenamesItself
  PID:2208

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/2208-0-0x0000000000400000-0x000000000044E000-memory.dmp

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Analysis

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