agenttesla | 0c32f105e24e559ab8467936dc3915b9d62aab1332f1b5eb07aa2f719e65c453

General

Target

zLEBOW2yUTRhZ0f.exe
Size

844KB
MD5

378292f8dc166cbfca05bcfb35c0e530
SHA1

0bfbbea512e1e9e7788685350825b0aba6eeca82
SHA256

57c7933d769882ce3fe88605d7796c2137e8ae2ff2084469478af084740cb721
SHA512

3f6016b48871330bdbeae8bba4a9d05628d4f9cefa1c3f9299d83f3fb4d80088a18aefbb7d2969ee3d3cb931b9074340c56c218905f10a158ead81593ff9631e
SSDEEP

24576:6QIjDrVbCx3YNJdy7xoCFj22N51ZbwClNe8qvx+15cX8uf:aDlCyHkzFjTthDqkCX8E

Score

10^/10

agenttesla discovery execution keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.apexrnun.com
Port:
587
Username:
[email protected]
Password:
%qroUozO;(C2Rlyb
Email To:
[email protected]

Signatures

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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2848	powershell.exe

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
2	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2716 set thread context of 2644	2716	zLEBOW2yUTRhZ0f.exe	32

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	zLEBOW2yUTRhZ0f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zLEBOW2yUTRhZ0f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2644	zLEBOW2yUTRhZ0f.exe
2644	zLEBOW2yUTRhZ0f.exe
2848	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2644	zLEBOW2yUTRhZ0f.exe
Token: SeDebugPrivilege	2848	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2716 wrote to memory of 2848	2716	zLEBOW2yUTRhZ0f.exe	30
PID 2716 wrote to memory of 2848	2716	zLEBOW2yUTRhZ0f.exe	30
PID 2716 wrote to memory of 2848	2716	zLEBOW2yUTRhZ0f.exe	30
PID 2716 wrote to memory of 2848	2716	zLEBOW2yUTRhZ0f.exe	30
PID 2716 wrote to memory of 2644	2716	zLEBOW2yUTRhZ0f.exe	32
PID 2716 wrote to memory of 2644	2716	zLEBOW2yUTRhZ0f.exe	32
PID 2716 wrote to memory of 2644	2716	zLEBOW2yUTRhZ0f.exe	32
PID 2716 wrote to memory of 2644	2716	zLEBOW2yUTRhZ0f.exe	32
PID 2716 wrote to memory of 2644	2716	zLEBOW2yUTRhZ0f.exe	32
PID 2716 wrote to memory of 2644	2716	zLEBOW2yUTRhZ0f.exe	32
PID 2716 wrote to memory of 2644	2716	zLEBOW2yUTRhZ0f.exe	32
PID 2716 wrote to memory of 2644	2716	zLEBOW2yUTRhZ0f.exe	32
PID 2716 wrote to memory of 2644	2716	zLEBOW2yUTRhZ0f.exe	32

C:\Users\Admin\AppData\Local\Temp\zLEBOW2yUTRhZ0f.exe
"C:\Users\Admin\AppData\Local\Temp\zLEBOW2yUTRhZ0f.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2716
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\zLEBOW2yUTRhZ0f.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2848
- C:\Users\Admin\AppData\Local\Temp\zLEBOW2yUTRhZ0f.exe
  "C:\Users\Admin\AppData\Local\Temp\zLEBOW2yUTRhZ0f.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2644

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

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 Information Discovery

1

T1082

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/2644-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2644-23-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2644-20-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2644-18-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2644-7-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2644-9-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2644-11-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2644-16-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2644-12-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2644-26-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2644-21-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2716-22-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2716-0-0x0000000074E8E000-0x0000000074E8F000-memory.dmp

Filesize
4KB

Download
memory/2716-1-0x0000000000B30000-0x0000000000C0A000-memory.dmp

Filesize
872KB

Download
memory/2716-2-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2716-6-0x0000000005340000-0x00000000053D8000-memory.dmp

Filesize
608KB

Download
memory/2716-5-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2716-4-0x0000000074E8E000-0x0000000074E8F000-memory.dmp

Filesize
4KB

Download
memory/2716-3-0x00000000004A0000-0x00000000004B2000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing