agenttesla | 8bb0e337c3af36ac129e503e1d1b263ae8b4f690686ad0777b5a2b5edd66b969

General

Target

invoice payment.exe
Size

730KB
MD5

aae8800b7d435aa404795d5febb4a973
SHA1

78d2df1f9f436600f373e7f08046372952c6aa7b
SHA256

c53543a3e9c38ff08e00681c93d8660da967d8ad521f04eb571d58f627f9a32e
SHA512

b67e95b3c8697fc4d76a7fcf6d7df74874ec127dbf0579f8363bad0a2c71ca4033cb4a88464eb623a5fce6233d751a7ab1aa94132a4dcd88cc51fb2783c28c59
SSDEEP

12288:tg+MIWZ/rZlRrmKT1cNIk7JkfmkPWznfraGsQkY8mWEt7SM27VIk:tgU8/FlPQIHmkPWLjNF78VIk

Score

10^/10

agenttesla credential_access discovery execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
Password: )NYyffR0
Email To:
[email protected]

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
2148	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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\mpTrle = "C:\\Users\\Admin\\AppData\\Roaming\\mpTrle\\mpTrle.exe"	invoice payment.exe

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 2520 set thread context of 2368	2520	invoice payment.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	invoice payment.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	invoice payment.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2520	invoice payment.exe
2520	invoice payment.exe
2368	invoice payment.exe
2368	invoice payment.exe
2148	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2520	invoice payment.exe
Token: SeDebugPrivilege	2368	invoice payment.exe
Token: SeDebugPrivilege	2148	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 2148	2520	invoice payment.exe	30
PID 2520 wrote to memory of 2148	2520	invoice payment.exe	30
PID 2520 wrote to memory of 2148	2520	invoice payment.exe	30
PID 2520 wrote to memory of 2148	2520	invoice payment.exe	30
PID 2520 wrote to memory of 2368	2520	invoice payment.exe	31
PID 2520 wrote to memory of 2368	2520	invoice payment.exe	31
PID 2520 wrote to memory of 2368	2520	invoice payment.exe	31
PID 2520 wrote to memory of 2368	2520	invoice payment.exe	31
PID 2520 wrote to memory of 2368	2520	invoice payment.exe	31
PID 2520 wrote to memory of 2368	2520	invoice payment.exe	31
PID 2520 wrote to memory of 2368	2520	invoice payment.exe	31
PID 2520 wrote to memory of 2368	2520	invoice payment.exe	31
PID 2520 wrote to memory of 2368	2520	invoice payment.exe	31

C:\Users\Admin\AppData\Local\Temp\invoice payment.exe
"C:\Users\Admin\AppData\Local\Temp\invoice payment.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2520
- 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\invoice payment.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2148
- C:\Users\Admin\AppData\Local\Temp\invoice payment.exe
  "C:\Users\Admin\AppData\Local\Temp\invoice payment.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2368

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

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

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Downloads

memory/2368-9-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2368-19-0x0000000074CA0000-0x000000007538E000-memory.dmp

Filesize
6.9MB

Download
memory/2368-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2368-20-0x0000000074CA0000-0x000000007538E000-memory.dmp

Filesize
6.9MB

Download
memory/2368-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2368-8-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2368-10-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2368-18-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2368-25-0x0000000074CA0000-0x000000007538E000-memory.dmp

Filesize
6.9MB

Download
memory/2368-11-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2368-16-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2520-5-0x0000000074CAE000-0x0000000074CAF000-memory.dmp

Filesize
4KB

Download
memory/2520-7-0x0000000004E80000-0x0000000004F04000-memory.dmp

Filesize
528KB

Download
memory/2520-21-0x0000000074CA0000-0x000000007538E000-memory.dmp

Filesize
6.9MB

Download
memory/2520-6-0x0000000074CA0000-0x000000007538E000-memory.dmp

Filesize
6.9MB

Download
memory/2520-0-0x0000000074CAE000-0x0000000074CAF000-memory.dmp

Filesize
4KB

Download
memory/2520-1-0x0000000000DC0000-0x0000000000E7C000-memory.dmp

Filesize
752KB

Download
memory/2520-4-0x0000000000860000-0x0000000000878000-memory.dmp

Filesize
96KB

Download
memory/2520-3-0x0000000004700000-0x00000000047A8000-memory.dmp

Filesize
672KB

Download
memory/2520-2-0x0000000074CA0000-0x000000007538E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads