agenttesla | 8feff55469c7d5bc9dbfaab62fe9b78843c3fabad5be532da632352fd18b549d

General

Target

Order #SS1953pdf.exe
Size

579KB
MD5

ee32c969a50da7d3a2021509f1d270f5
SHA1

5b50c87678e7c8b70f271c3cd135683ffd4a0498
SHA256

8feff55469c7d5bc9dbfaab62fe9b78843c3fabad5be532da632352fd18b549d
SHA512

d23311573363e0f8b9b1ba41b2c5b40b32627a75b2bedbd47f10ddf6efbf909be7ccb56086e1d585ee177f6177350fdcd4565d0adb6e8696ade9311303450817
SSDEEP

12288:+CuFjGTip659kZlslwXP4sp+ezCn2b4C:sFZwcTsOfppTzCC

Score

10^/10

agenttesla collection credential_access discovery execution keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5932003035:AAGiWu3EDh9FYzqRKIySebzjjQ5uW0afS3o/

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

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\anydesk.exe.exe	Powershell.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\anydesk.exe.exe	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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2988 set thread context of 2696	2988	Order #SS1953pdf.exe	32

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2764	Powershell.exe

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	Order #SS1953pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2764	Powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2764	Powershell.exe
Token: SeDebugPrivilege	2696	RegAsm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2696	RegAsm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2988 wrote to memory of 2764	2988	Order #SS1953pdf.exe	30
PID 2988 wrote to memory of 2764	2988	Order #SS1953pdf.exe	30
PID 2988 wrote to memory of 2764	2988	Order #SS1953pdf.exe	30
PID 2988 wrote to memory of 2764	2988	Order #SS1953pdf.exe	30
PID 2988 wrote to memory of 2696	2988	Order #SS1953pdf.exe	32
PID 2988 wrote to memory of 2696	2988	Order #SS1953pdf.exe	32
PID 2988 wrote to memory of 2696	2988	Order #SS1953pdf.exe	32
PID 2988 wrote to memory of 2696	2988	Order #SS1953pdf.exe	32
PID 2988 wrote to memory of 2696	2988	Order #SS1953pdf.exe	32
PID 2988 wrote to memory of 2696	2988	Order #SS1953pdf.exe	32
PID 2988 wrote to memory of 2696	2988	Order #SS1953pdf.exe	32
PID 2988 wrote to memory of 2696	2988	Order #SS1953pdf.exe	32
PID 2988 wrote to memory of 2696	2988	Order #SS1953pdf.exe	32
PID 2988 wrote to memory of 2696	2988	Order #SS1953pdf.exe	32
PID 2988 wrote to memory of 2696	2988	Order #SS1953pdf.exe	32
PID 2988 wrote to memory of 2696	2988	Order #SS1953pdf.exe	32

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\Order #SS1953pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Order #SS1953pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2988
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
  "Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\Order #SS1953pdf.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\anydesk.exe.exe'
  2⤵
  - Drops startup file
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2764
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:2696

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 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/2696-15-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2696-18-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2696-14-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2696-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2696-22-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2696-20-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2696-13-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2696-12-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2764-25-0x000000006FBA0000-0x000000007014B000-memory.dmp

Filesize
5.7MB

Download
memory/2764-8-0x000000006FBA0000-0x000000007014B000-memory.dmp

Filesize
5.7MB

Download
memory/2764-7-0x000000006FBA0000-0x000000007014B000-memory.dmp

Filesize
5.7MB

Download
memory/2764-6-0x000000006FBA1000-0x000000006FBA2000-memory.dmp

Filesize
4KB

Download
memory/2764-11-0x000000006FBA0000-0x000000007014B000-memory.dmp

Filesize
5.7MB

Download
memory/2764-10-0x000000006FBA0000-0x000000007014B000-memory.dmp

Filesize
5.7MB

Download
memory/2988-9-0x0000000000A60000-0x0000000000A6A000-memory.dmp

Filesize
40KB

Download
memory/2988-1-0x0000000000EC0000-0x0000000000F56000-memory.dmp

Filesize
600KB

Download
memory/2988-3-0x0000000074200000-0x00000000748EE000-memory.dmp

Filesize
6.9MB

Download
memory/2988-0-0x000000007420E000-0x000000007420F000-memory.dmp

Filesize
4KB

Download
memory/2988-2-0x0000000000DF0000-0x0000000000E38000-memory.dmp

Filesize
288KB

Download
memory/2988-23-0x0000000074200000-0x00000000748EE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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