agenttesla | 4dcb094e94a63135f8ca86b6d1d9d3add6bea9804e7dfad087aa80febfd02157

General

Target

PO_42347623792.exe
Size

872KB
MD5

1323078d9d22251cf2f9ad3365f7e178
SHA1

5e3e2b3d6ddd72973000c301b1da950cf6ac07f1
SHA256

fca946883c7ceba6682729c17bc5c9e67c7312b2066be69d0d03814392c449e2
SHA512

927218eefe8ad1d889dfbc5c6d1a872373d99286bc3d4bb033bfc7886cb2308ab02328f9ab33b78749e6a2b6c8abb4c24322359f39312dc82d1d27082ab490fe
SSDEEP

6144:MHJ84VJk6ZoNsCl4VWqxyvGoQjkXa5Z97Wj43dUVVTtcypaMlRae8KgqmYjS:MLVGFqsRaOSY

Score

10^/10

agenttesla discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6852245174:AAHgk_9s-tH6YNacTaCnQz56uJMggI0fZDw/

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Agenttesla family
agenttesla
Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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 stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
11	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1936 set thread context of 4340	1936	PO_42347623792.exe	82

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO_42347623792.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4340	RegAsm.exe
4340	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4340	RegAsm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4340	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1936 wrote to memory of 4340	1936	PO_42347623792.exe	82
PID 1936 wrote to memory of 4340	1936	PO_42347623792.exe	82
PID 1936 wrote to memory of 4340	1936	PO_42347623792.exe	82
PID 1936 wrote to memory of 4340	1936	PO_42347623792.exe	82
PID 1936 wrote to memory of 4340	1936	PO_42347623792.exe	82
PID 1936 wrote to memory of 4340	1936	PO_42347623792.exe	82
PID 1936 wrote to memory of 4340	1936	PO_42347623792.exe	82
PID 1936 wrote to memory of 4340	1936	PO_42347623792.exe	82

C:\Users\Admin\AppData\Local\Temp\PO_42347623792.exe
"C:\Users\Admin\AppData\Local\Temp\PO_42347623792.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4340

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

4

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1936-0-0x000000007487E000-0x000000007487F000-memory.dmp

Filesize
4KB

Download
memory/1936-1-0x0000000000520000-0x0000000000600000-memory.dmp

Filesize
896KB

Download
memory/1936-2-0x00000000028C0000-0x00000000028D4000-memory.dmp

Filesize
80KB

Download
memory/1936-3-0x00000000028F0000-0x00000000028F6000-memory.dmp

Filesize
24KB

Download
memory/1936-15-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/1936-6-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/4340-9-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/4340-8-0x0000000005DA0000-0x0000000006344000-memory.dmp

Filesize
5.6MB

Download
memory/4340-7-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/4340-10-0x00000000058F0000-0x0000000005956000-memory.dmp

Filesize
408KB

Download
memory/4340-11-0x0000000006BD0000-0x0000000006C20000-memory.dmp

Filesize
320KB

Download
memory/4340-12-0x0000000006CC0000-0x0000000006D5C000-memory.dmp

Filesize
624KB

Download
memory/4340-13-0x0000000006F40000-0x0000000006FD2000-memory.dmp

Filesize
584KB

Download
memory/4340-14-0x0000000006EE0000-0x0000000006EEA000-memory.dmp

Filesize
40KB

Download
memory/4340-4-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4340-16-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing