agenttesla | c75134c43e97b75bca4ced11b721253c5774cb0a78184acdc5c55580aa07df85

General

Target

Trojan.MSIL.Taskun.AMA.exe
Size

699KB
MD5

ace395f2b26c4c2cacdac246367c2060
SHA1

28a7e06e9c884a6bd19e2a72a707deddc926c8f7
SHA256

c75134c43e97b75bca4ced11b721253c5774cb0a78184acdc5c55580aa07df85
SHA512

38ca34874df309e5ccc849614b3800a0f487920ee3c2b6c076eb7b5717807eb510257ad07a321b455280ed12ecaa8d7ce47e847a8989d79a07d6b7aab24ce5be
SSDEEP

12288:HwPjab8rnxCwK1BWng4WYEAH9Dd3Qc9cLWM9WiR6i6Qc7JYdViwt5XH:HwjabiCwwQng4tE2t2Kf+/OJ4iw5

Score

10^/10

agenttesla credential_access discovery execution keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://beirutrest.com
Port:
21
Username:
[email protected]
Password:
9yXQ39wz(uL+

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

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
2336	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

Looks up external IP address via web service 2 IoCs

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

flow	ioc
4	api.ipify.org
5	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2376 set thread context of 2232	2376	Trojan.MSIL.Taskun.AMA.exe	31

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	Trojan.MSIL.Taskun.AMA.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Trojan.MSIL.Taskun.AMA.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2232	Trojan.MSIL.Taskun.AMA.exe
2232	Trojan.MSIL.Taskun.AMA.exe
2336	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2232	Trojan.MSIL.Taskun.AMA.exe
Token: SeDebugPrivilege	2336	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2376 wrote to memory of 2336	2376	Trojan.MSIL.Taskun.AMA.exe	29
PID 2376 wrote to memory of 2336	2376	Trojan.MSIL.Taskun.AMA.exe	29
PID 2376 wrote to memory of 2336	2376	Trojan.MSIL.Taskun.AMA.exe	29
PID 2376 wrote to memory of 2336	2376	Trojan.MSIL.Taskun.AMA.exe	29
PID 2376 wrote to memory of 2232	2376	Trojan.MSIL.Taskun.AMA.exe	31
PID 2376 wrote to memory of 2232	2376	Trojan.MSIL.Taskun.AMA.exe	31
PID 2376 wrote to memory of 2232	2376	Trojan.MSIL.Taskun.AMA.exe	31
PID 2376 wrote to memory of 2232	2376	Trojan.MSIL.Taskun.AMA.exe	31
PID 2376 wrote to memory of 2232	2376	Trojan.MSIL.Taskun.AMA.exe	31
PID 2376 wrote to memory of 2232	2376	Trojan.MSIL.Taskun.AMA.exe	31
PID 2376 wrote to memory of 2232	2376	Trojan.MSIL.Taskun.AMA.exe	31
PID 2376 wrote to memory of 2232	2376	Trojan.MSIL.Taskun.AMA.exe	31
PID 2376 wrote to memory of 2232	2376	Trojan.MSIL.Taskun.AMA.exe	31

C:\Users\Admin\AppData\Local\Temp\Trojan.MSIL.Taskun.AMA.exe
"C:\Users\Admin\AppData\Local\Temp\Trojan.MSIL.Taskun.AMA.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2376
- 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\Trojan.MSIL.Taskun.AMA.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2336
- C:\Users\Admin\AppData\Local\Temp\Trojan.MSIL.Taskun.AMA.exe
  "C:\Users\Admin\AppData\Local\Temp\Trojan.MSIL.Taskun.AMA.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2232

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/2232-9-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2232-17-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2232-15-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2232-14-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2232-20-0x0000000074540000-0x0000000074C2E000-memory.dmp

Filesize
6.9MB

Download
memory/2232-18-0x0000000074540000-0x0000000074C2E000-memory.dmp

Filesize
6.9MB

Download
memory/2232-7-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2232-8-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2232-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2232-23-0x0000000074540000-0x0000000074C2E000-memory.dmp

Filesize
6.9MB

Download
memory/2232-10-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2376-2-0x0000000074540000-0x0000000074C2E000-memory.dmp

Filesize
6.9MB

Download
memory/2376-0-0x000000007454E000-0x000000007454F000-memory.dmp

Filesize
4KB

Download
memory/2376-1-0x0000000000B30000-0x0000000000BE4000-memory.dmp

Filesize
720KB

Download
memory/2376-6-0x00000000053E0000-0x0000000005462000-memory.dmp

Filesize
520KB

Download
memory/2376-19-0x0000000074540000-0x0000000074C2E000-memory.dmp

Filesize
6.9MB

Download
memory/2376-5-0x0000000074540000-0x0000000074C2E000-memory.dmp

Filesize
6.9MB

Download
memory/2376-4-0x000000007454E000-0x000000007454F000-memory.dmp

Filesize
4KB

Download
memory/2376-3-0x0000000000330000-0x0000000000340000-memory.dmp

Filesize
64KB

Download

Analysis

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