agenttesla | f3c9e7b2e91b53c3256429497a9fb5d2cd449aca5d5a3b9fb705fe7d8c55d699

General

Target

vvndewpluori91026.exe
Size

653KB
MD5

432644163e0aaa8a0269179e0e036eae
SHA1

b504d2a91b22bb45b886c1d117dacdfa724fe262
SHA256

f3c9e7b2e91b53c3256429497a9fb5d2cd449aca5d5a3b9fb705fe7d8c55d699
SHA512

f076b13cf11a2af5a5d008e62286ab1def0bdbf01e5f1388341575ac78552cb8ae140ba9f73041d239a0e2aa2a36db525b681d9bf138b3a6c815c8f41941e80c
SSDEEP

12288:HeoLvyENxun9zJ7qeNgA3KPIPryfZTHfY87PCl8YK3TkQPzLxnjwX8bQb:9dvun9zJ7VNR3KPMrGRNR1hcYI

Score

10^/10

agenttesla discovery execution keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
aowapnzgtwgqowgt
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
2536	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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1968 set thread context of 2096	1968	vvndewpluori91026.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	vvndewpluori91026.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vvndewpluori91026.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2096	vvndewpluori91026.exe
2096	vvndewpluori91026.exe
2536	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2096	vvndewpluori91026.exe
Token: SeDebugPrivilege	2536	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1968 wrote to memory of 2536	1968	vvndewpluori91026.exe	31
PID 1968 wrote to memory of 2536	1968	vvndewpluori91026.exe	31
PID 1968 wrote to memory of 2536	1968	vvndewpluori91026.exe	31
PID 1968 wrote to memory of 2536	1968	vvndewpluori91026.exe	31
PID 1968 wrote to memory of 2096	1968	vvndewpluori91026.exe	33
PID 1968 wrote to memory of 2096	1968	vvndewpluori91026.exe	33
PID 1968 wrote to memory of 2096	1968	vvndewpluori91026.exe	33
PID 1968 wrote to memory of 2096	1968	vvndewpluori91026.exe	33
PID 1968 wrote to memory of 2096	1968	vvndewpluori91026.exe	33
PID 1968 wrote to memory of 2096	1968	vvndewpluori91026.exe	33
PID 1968 wrote to memory of 2096	1968	vvndewpluori91026.exe	33
PID 1968 wrote to memory of 2096	1968	vvndewpluori91026.exe	33
PID 1968 wrote to memory of 2096	1968	vvndewpluori91026.exe	33

C:\Users\Admin\AppData\Local\Temp\vvndewpluori91026.exe
"C:\Users\Admin\AppData\Local\Temp\vvndewpluori91026.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1968
- 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\vvndewpluori91026.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2536
- C:\Users\Admin\AppData\Local\Temp\vvndewpluori91026.exe
  "C:\Users\Admin\AppData\Local\Temp\vvndewpluori91026.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2096

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

Loading Replay Monitor...

Downloads

memory/1968-0-0x0000000074B8E000-0x0000000074B8F000-memory.dmp

Filesize
4KB

Download
memory/1968-1-0x0000000000F60000-0x000000000100A000-memory.dmp

Filesize
680KB

Download
memory/1968-2-0x0000000074B80000-0x000000007526E000-memory.dmp

Filesize
6.9MB

Download
memory/1968-3-0x0000000000470000-0x0000000000482000-memory.dmp

Filesize
72KB

Download
memory/1968-4-0x0000000074B8E000-0x0000000074B8F000-memory.dmp

Filesize
4KB

Download
memory/1968-5-0x0000000074B80000-0x000000007526E000-memory.dmp

Filesize
6.9MB

Download
memory/1968-6-0x00000000057A0000-0x0000000005822000-memory.dmp

Filesize
520KB

Download
memory/1968-21-0x0000000074B80000-0x000000007526E000-memory.dmp

Filesize
6.9MB

Download
memory/2096-15-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2096-20-0x0000000074B80000-0x000000007526E000-memory.dmp

Filesize
6.9MB

Download
memory/2096-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2096-11-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2096-9-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2096-8-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2096-7-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2096-22-0x0000000074B80000-0x000000007526E000-memory.dmp

Filesize
6.9MB

Download
memory/2096-17-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2096-19-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2096-25-0x0000000074B80000-0x000000007526E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing