agenttesla | cbc15d628a0987a96c8a479230e2b6bd0dc8461cb31aee8abe99c7d16a62b4c5

General

Target

PO23100076.exe
Size

656KB
MD5

abef12c0ec6c52759f2cd9cc5402e593
SHA1

5f8d0e0b219578e9bf15ebb85b36de1d3d951e6f
SHA256

5b2d21f50ea195e247b45b8330c18acfd0f71e146fe40489ee8301c7045daf04
SHA512

83a9b9097e1eb1ec16f18a310a8c48eccf92cd4206cacefd1dee01219cd82c81f3f32d1eabbf1b88c3cc71fb3e5a226c5bee7d6fd4174a088a32cae8b772c26c
SSDEEP

12288:4siyJ/iRs7N27Z84ScUducRb8TllLXer4XG6OXDsSPMSH+KE:t5iR6gaclseXNGBDLBxE

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
2892	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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO23100076.exe
Key opened	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO23100076.exe
Key opened	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO23100076.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3040 set thread context of 2796	3040	PO23100076.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	PO23100076.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO23100076.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2892	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2796	PO23100076.exe
Token: SeDebugPrivilege	2892	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 3040 wrote to memory of 2892	3040	PO23100076.exe	30
PID 3040 wrote to memory of 2892	3040	PO23100076.exe	30
PID 3040 wrote to memory of 2892	3040	PO23100076.exe	30
PID 3040 wrote to memory of 2892	3040	PO23100076.exe	30
PID 3040 wrote to memory of 2796	3040	PO23100076.exe	32
PID 3040 wrote to memory of 2796	3040	PO23100076.exe	32
PID 3040 wrote to memory of 2796	3040	PO23100076.exe	32
PID 3040 wrote to memory of 2796	3040	PO23100076.exe	32
PID 3040 wrote to memory of 2796	3040	PO23100076.exe	32
PID 3040 wrote to memory of 2796	3040	PO23100076.exe	32
PID 3040 wrote to memory of 2796	3040	PO23100076.exe	32
PID 3040 wrote to memory of 2796	3040	PO23100076.exe	32
PID 3040 wrote to memory of 2796	3040	PO23100076.exe	32

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO23100076.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO23100076.exe

C:\Users\Admin\AppData\Local\Temp\PO23100076.exe
"C:\Users\Admin\AppData\Local\Temp\PO23100076.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3040
- 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\PO23100076.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2892
- C:\Users\Admin\AppData\Local\Temp\PO23100076.exe
  "C:\Users\Admin\AppData\Local\Temp\PO23100076.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2796

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/2796-13-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2796-12-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2796-20-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2796-18-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2796-21-0x0000000073F10000-0x00000000745FE000-memory.dmp

Filesize
6.9MB

Download
memory/2796-8-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2796-10-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2796-16-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2796-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2796-25-0x0000000073F10000-0x00000000745FE000-memory.dmp

Filesize
6.9MB

Download
memory/3040-2-0x0000000073F10000-0x00000000745FE000-memory.dmp

Filesize
6.9MB

Download
memory/3040-7-0x00000000052F0000-0x0000000005364000-memory.dmp

Filesize
464KB

Download
memory/3040-0-0x0000000073F1E000-0x0000000073F1F000-memory.dmp

Filesize
4KB

Download
memory/3040-1-0x0000000000B10000-0x0000000000BBA000-memory.dmp

Filesize
680KB

Download
memory/3040-6-0x0000000073F10000-0x00000000745FE000-memory.dmp

Filesize
6.9MB

Download
memory/3040-5-0x0000000073F1E000-0x0000000073F1F000-memory.dmp

Filesize
4KB

Download
memory/3040-22-0x0000000073F10000-0x00000000745FE000-memory.dmp

Filesize
6.9MB

Download
memory/3040-4-0x0000000001FC0000-0x0000000001FDC000-memory.dmp

Filesize
112KB

Download
memory/3040-3-0x0000000000A70000-0x0000000000B10000-memory.dmp

Filesize
640KB

Download

Analysis

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