agenttesla | e2bedc40c26888ea05c4701a35175a9251a6e6752b825d7f01086a4a5979a039

General

Target

6Wwe9xRfuBMOonF.exe
Size

691KB
MD5

f809585404b9272d36608b5892c98673
SHA1

3eec646d8bc67e230fcaddb53354286585b87d13
SHA256

f148f64274a9eee3839fe520a305a813369a808c803c047cdcb06f78777c445e
SHA512

6448ff250c6c1f035a53b29d8f9e98b8a19737f0a86cc56f5dc2a84775bb12891c5bbdebfd2ec6f86735ce7fb3adcda0d1b298c9ab2a7e0e1c0dfad4c468351d
SSDEEP

12288:hnC9EmEjMLIlCzjAfJHnldnY1Sbst7ne4C4QAwN1tuTuK+N/mES:sFogMJHbnIuisUyeES

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:
TsHZsTv}Jnj5E5Bn
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
2856	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 588 set thread context of 2728	588	6Wwe9xRfuBMOonF.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	6Wwe9xRfuBMOonF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6Wwe9xRfuBMOonF.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2728	6Wwe9xRfuBMOonF.exe
2728	6Wwe9xRfuBMOonF.exe
2856	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2728	6Wwe9xRfuBMOonF.exe
Token: SeDebugPrivilege	2856	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 588 wrote to memory of 2856	588	6Wwe9xRfuBMOonF.exe	30
PID 588 wrote to memory of 2856	588	6Wwe9xRfuBMOonF.exe	30
PID 588 wrote to memory of 2856	588	6Wwe9xRfuBMOonF.exe	30
PID 588 wrote to memory of 2856	588	6Wwe9xRfuBMOonF.exe	30
PID 588 wrote to memory of 2728	588	6Wwe9xRfuBMOonF.exe	32
PID 588 wrote to memory of 2728	588	6Wwe9xRfuBMOonF.exe	32
PID 588 wrote to memory of 2728	588	6Wwe9xRfuBMOonF.exe	32
PID 588 wrote to memory of 2728	588	6Wwe9xRfuBMOonF.exe	32
PID 588 wrote to memory of 2728	588	6Wwe9xRfuBMOonF.exe	32
PID 588 wrote to memory of 2728	588	6Wwe9xRfuBMOonF.exe	32
PID 588 wrote to memory of 2728	588	6Wwe9xRfuBMOonF.exe	32
PID 588 wrote to memory of 2728	588	6Wwe9xRfuBMOonF.exe	32
PID 588 wrote to memory of 2728	588	6Wwe9xRfuBMOonF.exe	32

C:\Users\Admin\AppData\Local\Temp\6Wwe9xRfuBMOonF.exe
"C:\Users\Admin\AppData\Local\Temp\6Wwe9xRfuBMOonF.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:588
- 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\6Wwe9xRfuBMOonF.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2856
- C:\Users\Admin\AppData\Local\Temp\6Wwe9xRfuBMOonF.exe
  "C:\Users\Admin\AppData\Local\Temp\6Wwe9xRfuBMOonF.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2728

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/588-0-0x00000000741AE000-0x00000000741AF000-memory.dmp

Filesize
4KB

Download
memory/588-1-0x00000000011B0000-0x0000000001264000-memory.dmp

Filesize
720KB

Download
memory/588-2-0x00000000741A0000-0x000000007488E000-memory.dmp

Filesize
6.9MB

Download
memory/588-3-0x0000000000920000-0x0000000000938000-memory.dmp

Filesize
96KB

Download
memory/588-4-0x00000000741AE000-0x00000000741AF000-memory.dmp

Filesize
4KB

Download
memory/588-5-0x00000000741A0000-0x000000007488E000-memory.dmp

Filesize
6.9MB

Download
memory/588-6-0x0000000005D20000-0x0000000005DA4000-memory.dmp

Filesize
528KB

Download
memory/588-23-0x00000000741A0000-0x000000007488E000-memory.dmp

Filesize
6.9MB

Download
memory/2728-9-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2728-16-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2728-18-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2728-21-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2728-22-0x00000000741A0000-0x000000007488E000-memory.dmp

Filesize
6.9MB

Download
memory/2728-7-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2728-11-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2728-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2728-12-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2728-24-0x00000000741A0000-0x000000007488E000-memory.dmp

Filesize
6.9MB

Download
memory/2728-27-0x00000000741A0000-0x000000007488E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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