agenttesla | 16055416a11eb8ab5c14792e9c76bf8201fb717aea1cbf397b3cad40b0c72fd5

General

Target

PO-000001376.exe
Size

678KB
MD5

5cdffbc158d92ba63a98e4c66993b9d3
SHA1

63fa640b24994bdb7ffa0ef894582aef7c7a4ed8
SHA256

4b669a9882308c41461e55b5c429cad387b139f10c73bf23bf4181a6b42544f9
SHA512

d327a71a7bdaf9ef5740897010bec764cd16834ac5287e49406ff712e568724f6cd3bf5d856233ba1d89edbb6e6de2fa36ed0861d84db4958c896b223c25b0ff
SSDEEP

12288:pEX9fTePp7Vf59KrK/NduOlBh65jK9NWPVUfmt3vOFRCtNT1x0G:eX9f6pxf59eKNXzweAPmAMCt3O

Score

10^/10

agenttesla collection discovery execution keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.mbarieservicesltd.com
Port:
587
Username:
[email protected]
Password:
*o9H+18Q4%;M
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Agenttesla family
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
1852	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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-000001376.exe
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-000001376.exe
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-000001376.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2848 set thread context of 1628	2848	PO-000001376.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	PO-000001376.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO-000001376.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1852	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1628	PO-000001376.exe
Token: SeDebugPrivilege	1852	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2848 wrote to memory of 1852	2848	PO-000001376.exe	28
PID 2848 wrote to memory of 1852	2848	PO-000001376.exe	28
PID 2848 wrote to memory of 1852	2848	PO-000001376.exe	28
PID 2848 wrote to memory of 1852	2848	PO-000001376.exe	28
PID 2848 wrote to memory of 1628	2848	PO-000001376.exe	30
PID 2848 wrote to memory of 1628	2848	PO-000001376.exe	30
PID 2848 wrote to memory of 1628	2848	PO-000001376.exe	30
PID 2848 wrote to memory of 1628	2848	PO-000001376.exe	30
PID 2848 wrote to memory of 1628	2848	PO-000001376.exe	30
PID 2848 wrote to memory of 1628	2848	PO-000001376.exe	30
PID 2848 wrote to memory of 1628	2848	PO-000001376.exe	30
PID 2848 wrote to memory of 1628	2848	PO-000001376.exe	30
PID 2848 wrote to memory of 1628	2848	PO-000001376.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-000001376.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-000001376.exe

C:\Users\Admin\AppData\Local\Temp\PO-000001376.exe
"C:\Users\Admin\AppData\Local\Temp\PO-000001376.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2848
- 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\PO-000001376.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1852
- C:\Users\Admin\AppData\Local\Temp\PO-000001376.exe
  "C:\Users\Admin\AppData\Local\Temp\PO-000001376.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1628

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

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1628-17-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1628-24-0x00000000747D0000-0x0000000074EBE000-memory.dmp

Filesize
6.9MB

Download
memory/1628-7-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1628-9-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1628-11-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1628-12-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1628-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1628-19-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1628-15-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1628-20-0x00000000747D0000-0x0000000074EBE000-memory.dmp

Filesize
6.9MB

Download
memory/2848-4-0x00000000747DE000-0x00000000747DF000-memory.dmp

Filesize
4KB

Download
memory/2848-21-0x00000000747D0000-0x0000000074EBE000-memory.dmp

Filesize
6.9MB

Download
memory/2848-6-0x0000000004930000-0x00000000049A4000-memory.dmp

Filesize
464KB

Download
memory/2848-5-0x00000000747D0000-0x0000000074EBE000-memory.dmp

Filesize
6.9MB

Download
memory/2848-0-0x00000000747DE000-0x00000000747DF000-memory.dmp

Filesize
4KB

Download
memory/2848-3-0x0000000000550000-0x0000000000568000-memory.dmp

Filesize
96KB

Download
memory/2848-2-0x00000000747D0000-0x0000000074EBE000-memory.dmp

Filesize
6.9MB

Download
memory/2848-1-0x0000000000BA0000-0x0000000000C50000-memory.dmp

Filesize
704KB

Download

Analysis

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