agenttesla | 75bcc27de097f7bb0b0d8a8061e707acd561924dfe54b7bb4ccf5fce5ba0ab8a

General

Target

tmpgg7equbt.exe
Size

768KB
MD5

6da2a378bc6d3390ab659d9a8857f643
SHA1

f3320110a49ba8155f21194b288042195afcc30d
SHA256

75bcc27de097f7bb0b0d8a8061e707acd561924dfe54b7bb4ccf5fce5ba0ab8a
SHA512

3705efd72c888621d87647da7ef1373548dab204631abde751e9a8ffb6d90000dfce0ec17eaadde78088513cf36148f86d2291e012ac3923aeb5e6705020b1c5
SSDEEP

12288:J1ZF8K13TrxveK6UpNn72HBYvY9vFXPpj5sHKMtwOoRad2piOwXLw4gAkN/t:JyovD6UP7M9vNfsHzwFRs2QtXH6

Score

10^/10

agenttesla discovery execution keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.bonnyriggdentalsurgery.com.au
Port:
587
Username:
[email protected]
Password:
eL)rV@QBKA#m
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
2632	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 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
2	api.ipify.org
3	api.ipify.org
4	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1580 set thread context of 2572	1580	tmpgg7equbt.exe	30

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	tmpgg7equbt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tmpgg7equbt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2572	tmpgg7equbt.exe
2572	tmpgg7equbt.exe
2632	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2572	tmpgg7equbt.exe
Token: SeDebugPrivilege	2632	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1580 wrote to memory of 2632	1580	tmpgg7equbt.exe	28
PID 1580 wrote to memory of 2632	1580	tmpgg7equbt.exe	28
PID 1580 wrote to memory of 2632	1580	tmpgg7equbt.exe	28
PID 1580 wrote to memory of 2632	1580	tmpgg7equbt.exe	28
PID 1580 wrote to memory of 2572	1580	tmpgg7equbt.exe	30
PID 1580 wrote to memory of 2572	1580	tmpgg7equbt.exe	30
PID 1580 wrote to memory of 2572	1580	tmpgg7equbt.exe	30
PID 1580 wrote to memory of 2572	1580	tmpgg7equbt.exe	30
PID 1580 wrote to memory of 2572	1580	tmpgg7equbt.exe	30
PID 1580 wrote to memory of 2572	1580	tmpgg7equbt.exe	30
PID 1580 wrote to memory of 2572	1580	tmpgg7equbt.exe	30
PID 1580 wrote to memory of 2572	1580	tmpgg7equbt.exe	30
PID 1580 wrote to memory of 2572	1580	tmpgg7equbt.exe	30

C:\Users\Admin\AppData\Local\Temp\tmpgg7equbt.exe
"C:\Users\Admin\AppData\Local\Temp\tmpgg7equbt.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1580
- 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\tmpgg7equbt.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2632
- C:\Users\Admin\AppData\Local\Temp\tmpgg7equbt.exe
  "C:\Users\Admin\AppData\Local\Temp\tmpgg7equbt.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2572

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/1580-0-0x00000000741CE000-0x00000000741CF000-memory.dmp

Filesize
4KB

Download
memory/1580-1-0x0000000000C00000-0x0000000000CC6000-memory.dmp

Filesize
792KB

Download
memory/1580-2-0x00000000741C0000-0x00000000748AE000-memory.dmp

Filesize
6.9MB

Download
memory/1580-3-0x0000000000420000-0x000000000043E000-memory.dmp

Filesize
120KB

Download
memory/1580-4-0x00000000741CE000-0x00000000741CF000-memory.dmp

Filesize
4KB

Download
memory/1580-5-0x00000000741C0000-0x00000000748AE000-memory.dmp

Filesize
6.9MB

Download
memory/1580-6-0x0000000000360000-0x00000000003E4000-memory.dmp

Filesize
528KB

Download
memory/1580-22-0x00000000741C0000-0x00000000748AE000-memory.dmp

Filesize
6.9MB

Download
memory/2572-16-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2572-20-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2572-18-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2572-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2572-12-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2572-9-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2572-11-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2572-7-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2572-21-0x00000000741C0000-0x00000000748AE000-memory.dmp

Filesize
6.9MB

Download
memory/2572-23-0x00000000741C0000-0x00000000748AE000-memory.dmp

Filesize
6.9MB

Download
memory/2572-26-0x00000000741C0000-0x00000000748AE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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