agenttesla | 0223bd431ab35ef18d32fda419dd6db74241901d41c3ea8ecd3727859399824e

General

Target

Cl137P7A5anlCXM.exe
Size

830KB
MD5

0837145a4f3512ea3327c5961e345c18
SHA1

0e9bb752f18822af5260b2aa1fef502bb05da57b
SHA256

9cb86983eb18e846a1501b4f9baaa6860cbed22993194ec1a5026e3d3c0b3ccb
SHA512

c816e7c2d2f2881fcc9fc401322780c882b7b04e94f296a846a04624165b3d367e3823ffcbed4acfb1067748db4a27d13d8bc382fa46a3a1df6981d7be3889cb
SSDEEP

12288:iTv6x/rzfUShh6dJ9s13zovJm1rTjfXb+dsdeB449tM+JT+ercOAMEi4vaBO:6v6ZrzBP6LvEBDXa40MK+nOv3Ig

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
3048	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
4	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1924 set thread context of 2796	1924	Cl137P7A5anlCXM.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	Cl137P7A5anlCXM.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Cl137P7A5anlCXM.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2796	Cl137P7A5anlCXM.exe
2796	Cl137P7A5anlCXM.exe
3048	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2796	Cl137P7A5anlCXM.exe
Token: SeDebugPrivilege	3048	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1924 wrote to memory of 3048	1924	Cl137P7A5anlCXM.exe	31
PID 1924 wrote to memory of 3048	1924	Cl137P7A5anlCXM.exe	31
PID 1924 wrote to memory of 3048	1924	Cl137P7A5anlCXM.exe	31
PID 1924 wrote to memory of 3048	1924	Cl137P7A5anlCXM.exe	31
PID 1924 wrote to memory of 2796	1924	Cl137P7A5anlCXM.exe	32
PID 1924 wrote to memory of 2796	1924	Cl137P7A5anlCXM.exe	32
PID 1924 wrote to memory of 2796	1924	Cl137P7A5anlCXM.exe	32
PID 1924 wrote to memory of 2796	1924	Cl137P7A5anlCXM.exe	32
PID 1924 wrote to memory of 2796	1924	Cl137P7A5anlCXM.exe	32
PID 1924 wrote to memory of 2796	1924	Cl137P7A5anlCXM.exe	32
PID 1924 wrote to memory of 2796	1924	Cl137P7A5anlCXM.exe	32
PID 1924 wrote to memory of 2796	1924	Cl137P7A5anlCXM.exe	32
PID 1924 wrote to memory of 2796	1924	Cl137P7A5anlCXM.exe	32

C:\Users\Admin\AppData\Local\Temp\Cl137P7A5anlCXM.exe
"C:\Users\Admin\AppData\Local\Temp\Cl137P7A5anlCXM.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1924
- 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\Cl137P7A5anlCXM.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3048
- C:\Users\Admin\AppData\Local\Temp\Cl137P7A5anlCXM.exe
  "C:\Users\Admin\AppData\Local\Temp\Cl137P7A5anlCXM.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2796

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

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Downloads

memory/1924-22-0x0000000074700000-0x0000000074DEE000-memory.dmp

Filesize
6.9MB

Download
memory/1924-2-0x0000000074700000-0x0000000074DEE000-memory.dmp

Filesize
6.9MB

Download
memory/1924-0-0x000000007470E000-0x000000007470F000-memory.dmp

Filesize
4KB

Download
memory/1924-3-0x0000000000A70000-0x0000000000A8E000-memory.dmp

Filesize
120KB

Download
memory/1924-4-0x000000007470E000-0x000000007470F000-memory.dmp

Filesize
4KB

Download
memory/1924-5-0x0000000074700000-0x0000000074DEE000-memory.dmp

Filesize
6.9MB

Download
memory/1924-6-0x00000000008E0000-0x0000000000964000-memory.dmp

Filesize
528KB

Download
memory/1924-1-0x0000000000D50000-0x0000000000E26000-memory.dmp

Filesize
856KB

Download
memory/2796-26-0x0000000074700000-0x0000000074DEE000-memory.dmp

Filesize
6.9MB

Download
memory/2796-20-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2796-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2796-17-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2796-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2796-12-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2796-11-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2796-9-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2796-7-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2796-23-0x0000000074700000-0x0000000074DEE000-memory.dmp

Filesize
6.9MB

Download
memory/2796-21-0x0000000074700000-0x0000000074DEE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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