agenttesla | eb4cc2471fc7f8ea70bcf2c2c6531eec40116e2936808c462fc362a83b0f08a7

General

Target

dIg1H3IegSv8WYB.exe
Size

789KB
MD5

7083b7a10e7b74aea9cf6c6b9dd3fe45
SHA1

e3769b1fa1dbcdef6bc7efe18aa0cf21e9507cd0
SHA256

83688d7b2b5feff8ecf5ab902d206187815d1759858129e85d9b2e2673d935b4
SHA512

f3b174947e2a2369303b7a6478540cdcf7d075781883d55e2f9bc6aa341438be378e7455c27f6562af81bf4c292941b047fd690cada210f43c9574d0b0135229
SSDEEP

6144:9ENaneCZj70XxIQRVA+bIRsli6A7kh9iaqTHMpDaTJM906xm/2qjYXhflK73GVGM:+KQIMnbQKymia4HcDaTJw06IXjGJ7N5

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
2660	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 2196 set thread context of 2824	2196	dIg1H3IegSv8WYB.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	dIg1H3IegSv8WYB.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dIg1H3IegSv8WYB.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2824	dIg1H3IegSv8WYB.exe
2824	dIg1H3IegSv8WYB.exe
2660	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2824	dIg1H3IegSv8WYB.exe
Token: SeDebugPrivilege	2660	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 2660	2196	dIg1H3IegSv8WYB.exe	30
PID 2196 wrote to memory of 2660	2196	dIg1H3IegSv8WYB.exe	30
PID 2196 wrote to memory of 2660	2196	dIg1H3IegSv8WYB.exe	30
PID 2196 wrote to memory of 2660	2196	dIg1H3IegSv8WYB.exe	30
PID 2196 wrote to memory of 2824	2196	dIg1H3IegSv8WYB.exe	32
PID 2196 wrote to memory of 2824	2196	dIg1H3IegSv8WYB.exe	32
PID 2196 wrote to memory of 2824	2196	dIg1H3IegSv8WYB.exe	32
PID 2196 wrote to memory of 2824	2196	dIg1H3IegSv8WYB.exe	32
PID 2196 wrote to memory of 2824	2196	dIg1H3IegSv8WYB.exe	32
PID 2196 wrote to memory of 2824	2196	dIg1H3IegSv8WYB.exe	32
PID 2196 wrote to memory of 2824	2196	dIg1H3IegSv8WYB.exe	32
PID 2196 wrote to memory of 2824	2196	dIg1H3IegSv8WYB.exe	32
PID 2196 wrote to memory of 2824	2196	dIg1H3IegSv8WYB.exe	32

C:\Users\Admin\AppData\Local\Temp\dIg1H3IegSv8WYB.exe
"C:\Users\Admin\AppData\Local\Temp\dIg1H3IegSv8WYB.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2196
- 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\dIg1H3IegSv8WYB.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2660
- C:\Users\Admin\AppData\Local\Temp\dIg1H3IegSv8WYB.exe
  "C:\Users\Admin\AppData\Local\Temp\dIg1H3IegSv8WYB.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2824

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/2196-0-0x00000000746AE000-0x00000000746AF000-memory.dmp

Filesize
4KB

Download
memory/2196-1-0x0000000001330000-0x00000000013FC000-memory.dmp

Filesize
816KB

Download
memory/2196-2-0x00000000746A0000-0x0000000074D8E000-memory.dmp

Filesize
6.9MB

Download
memory/2196-3-0x0000000000290000-0x00000000002AE000-memory.dmp

Filesize
120KB

Download
memory/2196-4-0x00000000746AE000-0x00000000746AF000-memory.dmp

Filesize
4KB

Download
memory/2196-5-0x00000000746A0000-0x0000000074D8E000-memory.dmp

Filesize
6.9MB

Download
memory/2196-6-0x0000000000A40000-0x0000000000AC4000-memory.dmp

Filesize
528KB

Download
memory/2196-18-0x00000000746A0000-0x0000000074D8E000-memory.dmp

Filesize
6.9MB

Download
memory/2824-17-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2824-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2824-13-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2824-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2824-9-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2824-8-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2824-10-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2824-19-0x00000000746A0000-0x0000000074D8E000-memory.dmp

Filesize
6.9MB

Download
memory/2824-7-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2824-20-0x00000000746A0000-0x0000000074D8E000-memory.dmp

Filesize
6.9MB

Download
memory/2824-23-0x00000000746A0000-0x0000000074D8E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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