agenttesla | 59fd27d8adb9e3fc23056a28a4e66544d6e4105144c8c977f4e1c16d4e0f519e

General

Target

rQUu2eHuvuSOA1L.exe
Size

652KB
MD5

999c2c940d0c49ab173cd107e6d5323c
SHA1

8e14d16e2a7ca0e253203fbb9c44814d7ed6b3f4
SHA256

3b318399e094b9024f2b6c8d92eff595a636b147b4bf240752e92a6bcd7b7fd8
SHA512

5b3d480b1569a8780098cfe80a9ae3fda010d601979ed0973d1e86a1ee34003eedd21d5d1fe8c98fdba059da7ae7c6bd20f3c6cdbb309a2fc3c9e7d094e85d4d
SSDEEP

12288:+SaxzV17d704jDHWOkAJbH4aQDbRE8hUrHmAxOqZysQpryO0Nsy9i72l:KzV1R7RH9kAZARUjSz3yOysykE

Score

10^/10

agenttesla credential_access 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
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

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
2556	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 2 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

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 2144 set thread context of 2276	2144	rQUu2eHuvuSOA1L.exe	31

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	rQUu2eHuvuSOA1L.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rQUu2eHuvuSOA1L.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2276	rQUu2eHuvuSOA1L.exe
2276	rQUu2eHuvuSOA1L.exe
2556	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2276	rQUu2eHuvuSOA1L.exe
Token: SeDebugPrivilege	2556	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2144 wrote to memory of 2556	2144	rQUu2eHuvuSOA1L.exe	30
PID 2144 wrote to memory of 2556	2144	rQUu2eHuvuSOA1L.exe	30
PID 2144 wrote to memory of 2556	2144	rQUu2eHuvuSOA1L.exe	30
PID 2144 wrote to memory of 2556	2144	rQUu2eHuvuSOA1L.exe	30
PID 2144 wrote to memory of 2276	2144	rQUu2eHuvuSOA1L.exe	31
PID 2144 wrote to memory of 2276	2144	rQUu2eHuvuSOA1L.exe	31
PID 2144 wrote to memory of 2276	2144	rQUu2eHuvuSOA1L.exe	31
PID 2144 wrote to memory of 2276	2144	rQUu2eHuvuSOA1L.exe	31
PID 2144 wrote to memory of 2276	2144	rQUu2eHuvuSOA1L.exe	31
PID 2144 wrote to memory of 2276	2144	rQUu2eHuvuSOA1L.exe	31
PID 2144 wrote to memory of 2276	2144	rQUu2eHuvuSOA1L.exe	31
PID 2144 wrote to memory of 2276	2144	rQUu2eHuvuSOA1L.exe	31
PID 2144 wrote to memory of 2276	2144	rQUu2eHuvuSOA1L.exe	31

C:\Users\Admin\AppData\Local\Temp\rQUu2eHuvuSOA1L.exe
"C:\Users\Admin\AppData\Local\Temp\rQUu2eHuvuSOA1L.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2144
- 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\rQUu2eHuvuSOA1L.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2556
- C:\Users\Admin\AppData\Local\Temp\rQUu2eHuvuSOA1L.exe
  "C:\Users\Admin\AppData\Local\Temp\rQUu2eHuvuSOA1L.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2276

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/2144-0-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

Filesize
4KB

Download
memory/2144-1-0x0000000001020000-0x00000000010CA000-memory.dmp

Filesize
680KB

Download
memory/2144-2-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2144-3-0x00000000008D0000-0x00000000008E0000-memory.dmp

Filesize
64KB

Download
memory/2144-4-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

Filesize
4KB

Download
memory/2144-5-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2144-6-0x0000000005C40000-0x0000000005CC4000-memory.dmp

Filesize
528KB

Download
memory/2144-19-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2276-8-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2276-17-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2276-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2276-13-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2276-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2276-10-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2276-9-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2276-18-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2276-20-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2276-7-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2276-23-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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