agenttesla | 74e5336cba0e80912e859b7dfc67820f6b42e2e271499c2114dd3d3e2490b173

General

Target

w0tV0GxzmSBYvqL.exe
Size

654KB
MD5

45eda7a4e206150fc3550958d4b24e57
SHA1

756500ad5d3329ad3bc0d5ecd4501863060868ae
SHA256

29779ede9aaaa44bb3e2e2ff0ad2cb9fe642a08259584f5a01e593a1341d540c
SHA512

c9fd38042159ce96e426db47c1624bcedee9fa0711d0c92c08d568d25a79d37fcf22f766c29c7137d9af09c3c8c572e0088d1f835af290777b5891d33b9fb5d8
SSDEEP

12288:vL38bQb5qhitiZQb83wuCZ57C2b+ghLQHhlFBfx/kBCxtAMIZ9KbWPR6o:0IIhitSY5m2CgZ+lFBfxNxtAQbCR6o

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
3052	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 604 set thread context of 856	604	w0tV0GxzmSBYvqL.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	w0tV0GxzmSBYvqL.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	w0tV0GxzmSBYvqL.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
856	w0tV0GxzmSBYvqL.exe
856	w0tV0GxzmSBYvqL.exe
3052	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	856	w0tV0GxzmSBYvqL.exe
Token: SeDebugPrivilege	3052	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 604 wrote to memory of 3052	604	w0tV0GxzmSBYvqL.exe	31
PID 604 wrote to memory of 3052	604	w0tV0GxzmSBYvqL.exe	31
PID 604 wrote to memory of 3052	604	w0tV0GxzmSBYvqL.exe	31
PID 604 wrote to memory of 3052	604	w0tV0GxzmSBYvqL.exe	31
PID 604 wrote to memory of 856	604	w0tV0GxzmSBYvqL.exe	33
PID 604 wrote to memory of 856	604	w0tV0GxzmSBYvqL.exe	33
PID 604 wrote to memory of 856	604	w0tV0GxzmSBYvqL.exe	33
PID 604 wrote to memory of 856	604	w0tV0GxzmSBYvqL.exe	33
PID 604 wrote to memory of 856	604	w0tV0GxzmSBYvqL.exe	33
PID 604 wrote to memory of 856	604	w0tV0GxzmSBYvqL.exe	33
PID 604 wrote to memory of 856	604	w0tV0GxzmSBYvqL.exe	33
PID 604 wrote to memory of 856	604	w0tV0GxzmSBYvqL.exe	33
PID 604 wrote to memory of 856	604	w0tV0GxzmSBYvqL.exe	33

C:\Users\Admin\AppData\Local\Temp\w0tV0GxzmSBYvqL.exe
"C:\Users\Admin\AppData\Local\Temp\w0tV0GxzmSBYvqL.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:604
- 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\w0tV0GxzmSBYvqL.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3052
- C:\Users\Admin\AppData\Local\Temp\w0tV0GxzmSBYvqL.exe
  "C:\Users\Admin\AppData\Local\Temp\w0tV0GxzmSBYvqL.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:856

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/604-21-0x0000000074420000-0x0000000074B0E000-memory.dmp

Filesize
6.9MB

Download
memory/604-2-0x0000000074420000-0x0000000074B0E000-memory.dmp

Filesize
6.9MB

Download
memory/604-0-0x000000007442E000-0x000000007442F000-memory.dmp

Filesize
4KB

Download
memory/604-3-0x0000000000470000-0x0000000000482000-memory.dmp

Filesize
72KB

Download
memory/604-4-0x000000007442E000-0x000000007442F000-memory.dmp

Filesize
4KB

Download
memory/604-5-0x0000000074420000-0x0000000074B0E000-memory.dmp

Filesize
6.9MB

Download
memory/604-6-0x0000000005590000-0x0000000005614000-memory.dmp

Filesize
528KB

Download
memory/604-1-0x0000000000D70000-0x0000000000E1A000-memory.dmp

Filesize
680KB

Download
memory/856-25-0x0000000074420000-0x0000000074B0E000-memory.dmp

Filesize
6.9MB

Download
memory/856-20-0x0000000074420000-0x0000000074B0E000-memory.dmp

Filesize
6.9MB

Download
memory/856-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/856-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/856-19-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/856-11-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/856-9-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/856-8-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/856-7-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/856-22-0x0000000074420000-0x0000000074B0E000-memory.dmp

Filesize
6.9MB

Download
memory/856-17-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

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