agenttesla | 37706ccf9cb5d3e412681cb2d1ca2fbd36134f19027a9245d103164490bc5423

General

Target

Rzawdd7.exe
Size

550KB
MD5

32dadbf3ce50c64da80d013e077f7c6b
SHA1

5363d952150d7177a85be73194e10c6757bcebe9
SHA256

37706ccf9cb5d3e412681cb2d1ca2fbd36134f19027a9245d103164490bc5423
SHA512

c8bcaff0e94aa7a1af6a40aea5e28db5687977488216ba6844e0197eb730ff44cfdcc4d19d2a56c34befe067e76faff545b09b2fcacb8cc950e0112f7377314a

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.orisinlog.com
Port:
587
Username:
03@orisinlog.com
Password:
0hA9YwHu0x

Signatures

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

AgentTesla Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1852-6-0x0000000004B90000-0x0000000004BC7000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

Rzawdd7.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts Rzawdd7.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

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	Rzawdd7.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Rzawdd7.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\vlc = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\VideoLAN\\vlc.exe\""	Rzawdd7.exe

Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

6 api.ipify.org
7 api.ipify.org
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Rzawdd7.exe

pid process

1852 Rzawdd7.exe
1852 Rzawdd7.exe
1852 Rzawdd7.exe
1852 Rzawdd7.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Rzawdd7.exe

description pid process

Token: SeDebugPrivilege 1852 Rzawdd7.exe

flow	ioc
6	api.ipify.org
7	api.ipify.org

pid	process
1852	Rzawdd7.exe
1852	Rzawdd7.exe
1852	Rzawdd7.exe
1852	Rzawdd7.exe

description	pid	process
Token: SeDebugPrivilege	1852	Rzawdd7.exe

C:\Users\Admin\AppData\Local\Temp\Rzawdd7.exe
"C:\Users\Admin\AppData\Local\Temp\Rzawdd7.exe"
1⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1852

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1852-2-0x0000000074840000-0x0000000074F2E000-memory.dmp

Filesize
6.9MB

Download
memory/1852-3-0x0000000000340000-0x0000000000341000-memory.dmp

Filesize
4KB

Download
memory/1852-5-0x00000000008E0000-0x00000000008FF000-memory.dmp

Filesize
124KB

Download
memory/1852-6-0x0000000004B90000-0x0000000004BC7000-memory.dmp

Filesize
220KB

Download

Analysis

Sharing