agenttesla | 6378bc24c53c4833869f79345c6fc69a1bab60f8b038fc4a6b15d3a0fbd2b534

General

Target

ZXscQQ9xOnwb76m.exe
Size

657KB
MD5

8fa1eba5ff8f18b3b356c563b84a7d0e
SHA1

c4eb24fea889e1f46415996b01b180b60a80c116
SHA256

d2c572620387664910999bfc882aad621a21c28eef0adc4991c41c33a530e4cf
SHA512

040d50c66a54ae462c854623bd9b208227f5300413598efde7b69a21f4f6cae67410bcfe628cb89286a6b7819566c920101bb832d2adef114638e09a1ec523c8
SSDEEP

12288:1J+LwlI6WulHGj0EuIcpZTyfsai9GaorZX0Xodx6d9Kmlt4t8Y/n2aS7Azp3b3m6:fIlul0Hufe/iHalsTHf7Azp3SaeByIU5

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:
dU*wU0)yR;?4q|-#
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
1788	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 2316 set thread context of 2736	2316	ZXscQQ9xOnwb76m.exe	33

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	ZXscQQ9xOnwb76m.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ZXscQQ9xOnwb76m.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2736	ZXscQQ9xOnwb76m.exe
2736	ZXscQQ9xOnwb76m.exe
1788	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2736	ZXscQQ9xOnwb76m.exe
Token: SeDebugPrivilege	1788	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2316 wrote to memory of 1788	2316	ZXscQQ9xOnwb76m.exe	31
PID 2316 wrote to memory of 1788	2316	ZXscQQ9xOnwb76m.exe	31
PID 2316 wrote to memory of 1788	2316	ZXscQQ9xOnwb76m.exe	31
PID 2316 wrote to memory of 1788	2316	ZXscQQ9xOnwb76m.exe	31
PID 2316 wrote to memory of 2736	2316	ZXscQQ9xOnwb76m.exe	33
PID 2316 wrote to memory of 2736	2316	ZXscQQ9xOnwb76m.exe	33
PID 2316 wrote to memory of 2736	2316	ZXscQQ9xOnwb76m.exe	33
PID 2316 wrote to memory of 2736	2316	ZXscQQ9xOnwb76m.exe	33
PID 2316 wrote to memory of 2736	2316	ZXscQQ9xOnwb76m.exe	33
PID 2316 wrote to memory of 2736	2316	ZXscQQ9xOnwb76m.exe	33
PID 2316 wrote to memory of 2736	2316	ZXscQQ9xOnwb76m.exe	33
PID 2316 wrote to memory of 2736	2316	ZXscQQ9xOnwb76m.exe	33
PID 2316 wrote to memory of 2736	2316	ZXscQQ9xOnwb76m.exe	33

C:\Users\Admin\AppData\Local\Temp\ZXscQQ9xOnwb76m.exe
"C:\Users\Admin\AppData\Local\Temp\ZXscQQ9xOnwb76m.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2316
- 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\ZXscQQ9xOnwb76m.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1788
- C:\Users\Admin\AppData\Local\Temp\ZXscQQ9xOnwb76m.exe
  "C:\Users\Admin\AppData\Local\Temp\ZXscQQ9xOnwb76m.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2736

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/2316-19-0x0000000074890000-0x0000000074F7E000-memory.dmp

Filesize
6.9MB

Download
memory/2316-2-0x0000000074890000-0x0000000074F7E000-memory.dmp

Filesize
6.9MB

Download
memory/2316-0-0x000000007489E000-0x000000007489F000-memory.dmp

Filesize
4KB

Download
memory/2316-3-0x00000000003C0000-0x00000000003D2000-memory.dmp

Filesize
72KB

Download
memory/2316-4-0x000000007489E000-0x000000007489F000-memory.dmp

Filesize
4KB

Download
memory/2316-5-0x0000000074890000-0x0000000074F7E000-memory.dmp

Filesize
6.9MB

Download
memory/2316-6-0x0000000005630000-0x00000000056B4000-memory.dmp

Filesize
528KB

Download
memory/2316-1-0x0000000000870000-0x000000000091A000-memory.dmp

Filesize
680KB

Download
memory/2736-23-0x0000000074890000-0x0000000074F7E000-memory.dmp

Filesize
6.9MB

Download
memory/2736-10-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2736-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2736-13-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2736-17-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2736-18-0x0000000074890000-0x0000000074F7E000-memory.dmp

Filesize
6.9MB

Download
memory/2736-9-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2736-8-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2736-7-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2736-20-0x0000000074890000-0x0000000074F7E000-memory.dmp

Filesize
6.9MB

Download
memory/2736-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

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