agenttesla | b9ba71cadb864e057d30e43853ab0496571740fa2dcb1f7f829ceb10413dcf21

General

Target
MV ASIA EMERALD II.exe
Size 617KB
Sample201109-dn7ktnlnc6
SHA256 b9ba71cadb864e057d30e43853ab0496571740fa2dcb1f7f829ceb10413dcf21
MD5 8ca3b460c83fed20751686a16f01ef1d
SHA1 82f9f3704da4a914343e93e49143c354cc6d2b08
SHA512 a005f986a2e5e491ab8866c9ee1f83720414d6e51565940e5f971c25ebe1c18da209ff89c0b8fd683e4d206f972b2b329c43193fb069572a2bd5e933da10fc39
MD5 SHA1 SHA512

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol
smtp
Host
mail.privateemail.com
Port
587
Username
[email protected]
Password
iwuoha241@

Signatures

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

AgentTesla Payload 2 IoCs

resource	yara_rule
behavioral2/memory/3944-0-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral2/memory/3944-1-0x0000000000447ABE-mapping.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-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\DsWhv = "C:\\Users\\Admin\\AppData\\Roaming\\DsWhv\\DsWhv.exe"	MV ASIA EMERALD II.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1028 set thread context of 3944	1028	MV ASIA EMERALD II.exe	79

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3944	MV ASIA EMERALD II.exe
3944	MV ASIA EMERALD II.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3944	MV ASIA EMERALD II.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1028 wrote to memory of 3944	1028	MV ASIA EMERALD II.exe	79
PID 1028 wrote to memory of 3944	1028	MV ASIA EMERALD II.exe	79
PID 1028 wrote to memory of 3944	1028	MV ASIA EMERALD II.exe	79
PID 1028 wrote to memory of 3944	1028	MV ASIA EMERALD II.exe	79
PID 1028 wrote to memory of 3944	1028	MV ASIA EMERALD II.exe	79
PID 1028 wrote to memory of 3944	1028	MV ASIA EMERALD II.exe	79
PID 1028 wrote to memory of 3944	1028	MV ASIA EMERALD II.exe	79
PID 1028 wrote to memory of 3944	1028	MV ASIA EMERALD II.exe	79

C:\Users\Admin\AppData\Local\Temp\MV ASIA EMERALD II.exe
"C:\Users\Admin\AppData\Local\Temp\MV ASIA EMERALD II.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1028
- C:\Users\Admin\AppData\Local\Temp\MV ASIA EMERALD II.exe
  "{path}"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3944

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/3944-0-0x0000000000400000-0x000000000044C000-memory.dmp

Download

Analysis

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