agenttesla | beeb242bb1a4ffa7cc706ac482236afb457d52ffdb0defcde160528b858c6b03

Analysis

max time kernel
176s
max time network
190s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
26/11/2022, 08:36

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General

Target
Done.Ps1.ps1
Size 424KB
Sample221126-khk2vsfa28
SHA256 beeb242bb1a4ffa7cc706ac482236afb457d52ffdb0defcde160528b858c6b03
MD5 8fcb19e02d18c366516e3f171626915b
SHA1 04b2e12f3ea3d5a7f08368364da82fd701eba6af
SHA512 ae8722996423903b70e408c1310d3a1d8a74a9f98ba329f55ed3a8f95c94cea4f67bdf1472bbfbf6b0ddb83cd458f1e0f2382810652458157c7250d96e405808
SSDEEP 12288:emE2c2tF7mzczXwzis3Y7NZswOdWlRnHn:Jaz2Azis3mfB7jnH
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
smtp.leonardfood.com
Port
587
Username
[email protected]
Password
K@rimi95
Email to
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

Blocklisted process makes network request 1 IoCs

flow	pid	Process
24	1612	powershell.exe

Downloads MZ/PE file
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
T1081
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
T1081
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
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1612 set thread context of 3736	1612	powershell.exe	84

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1612	powershell.exe
1612	powershell.exe
3736	RegAsm.exe
3736	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1612	powershell.exe
Token: SeDebugPrivilege	3736	RegAsm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3736	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1612 wrote to memory of 3736	1612	powershell.exe	84
PID 1612 wrote to memory of 3736	1612	powershell.exe	84
PID 1612 wrote to memory of 3736	1612	powershell.exe	84
PID 1612 wrote to memory of 3736	1612	powershell.exe	84
PID 1612 wrote to memory of 3736	1612	powershell.exe	84
PID 1612 wrote to memory of 3736	1612	powershell.exe	84
PID 1612 wrote to memory of 3736	1612	powershell.exe	84
PID 1612 wrote to memory of 3736	1612	powershell.exe	84

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\Done.Ps1.ps1
1⤵
- Blocklisted process makes network request
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1612
- 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
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:3736

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/1612-132-0x000001C63A310000-0x000001C63A332000-memory.dmp

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memory/1612-133-0x00007FFCFF510000-0x00007FFCFFFD1000-memory.dmp

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memory/1612-134-0x00007FFCFF510000-0x00007FFCFFFD1000-memory.dmp

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memory/1612-137-0x00007FFCFF510000-0x00007FFCFFFD1000-memory.dmp

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memory/3736-135-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/3736-138-0x0000000005D40000-0x00000000062E4000-memory.dmp

Download

memory/3736-139-0x0000000005890000-0x000000000592C000-memory.dmp

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memory/3736-140-0x0000000006630000-0x0000000006696000-memory.dmp

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memory/3736-141-0x0000000002F70000-0x0000000002FC0000-memory.dmp

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memory/3736-142-0x0000000006D60000-0x0000000006DF2000-memory.dmp

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memory/3736-143-0x0000000003030000-0x000000000303A000-memory.dmp

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