agenttesla | 83532bb6a24d4eb669d3655d94345e3b44df39025e8c4ad024d5365575a70fe2

General

Target

MAERSK KLEVEN V.949.exe
Size

3.9MB
MD5

21eda5c3a9b012e0ae18f446da1b9eeb
SHA1

0b01392f53c0fe65952495ba14af70420d2c5853
SHA256

f1f8cbfc6921ce73c2c3668b2fded2a1bdb3cf8d5434f23090840115188fd7b9
SHA512

74ae6555b9329bc549bd686f9d861b2d09bf0030b07a1289801bef239751c770fcb3ef729e6bcf724f32a6869893bb119480d3680e78b6be5bccc770bf517c18

Score

10^/10

agenttesla collection evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.gammavilla.org
Port:
587
Username:
[email protected]
Password:
county2018

Signatures

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

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

MAERSK KLEVEN V.949.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Local\\Temp\\MAERSK KLEVEN V.949.exe\""	MAERSK KLEVEN V.949.exe

Modifies Windows Defender Real-time Protection settings 3 TTPs
evasion trojan

Modify Registry
T1112

Modify Existing Service
T1031

Disabling Security Tools
T1089

AgentTesla Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4804-151-0x0000000000400000-0x000000000044A000-memory.dmp	family_agenttesla

Drops startup file 2 IoCs

Processes:

MAERSK KLEVEN V.949.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MAERSK KLEVEN V.949.exe	MAERSK KLEVEN V.949.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MAERSK KLEVEN V.949.exe	MAERSK KLEVEN V.949.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

MAERSK KLEVEN V.949.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	MAERSK KLEVEN V.949.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	MAERSK KLEVEN V.949.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

installutil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	installutil.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	installutil.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	installutil.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

MAERSK KLEVEN V.949.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MAERSK KLEVEN V.949.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MAERSK KLEVEN V.949.exe"	MAERSK KLEVEN V.949.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

MAERSK KLEVEN V.949.exe

description pid process target process

PID 2736 set thread context of 4804 2736 MAERSK KLEVEN V.949.exe installutil.exe

description	pid	process	target process
PID 2736 set thread context of 4804	2736	MAERSK KLEVEN V.949.exe	installutil.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

powershell.exeMAERSK KLEVEN V.949.exeinstallutil.exe

pid	process
3656	powershell.exe
3656	powershell.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
4804	installutil.exe
4804	installutil.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe
2736	MAERSK KLEVEN V.949.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

powershell.exeMAERSK KLEVEN V.949.exeinstallutil.exe

description	pid	process
Token: SeDebugPrivilege	3656	powershell.exe
Token: SeDebugPrivilege	2736	MAERSK KLEVEN V.949.exe
Token: SeDebugPrivilege	4804	installutil.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

installutil.exe

pid process

4804 installutil.exe

pid	process
4804	installutil.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

MAERSK KLEVEN V.949.exe

description	pid	process	target process
PID 2736 wrote to memory of 3656	2736	MAERSK KLEVEN V.949.exe	powershell.exe
PID 2736 wrote to memory of 3656	2736	MAERSK KLEVEN V.949.exe	powershell.exe
PID 2736 wrote to memory of 3656	2736	MAERSK KLEVEN V.949.exe	powershell.exe
PID 2736 wrote to memory of 4804	2736	MAERSK KLEVEN V.949.exe	installutil.exe
PID 2736 wrote to memory of 4804	2736	MAERSK KLEVEN V.949.exe	installutil.exe
PID 2736 wrote to memory of 4804	2736	MAERSK KLEVEN V.949.exe	installutil.exe
PID 2736 wrote to memory of 4804	2736	MAERSK KLEVEN V.949.exe	installutil.exe
PID 2736 wrote to memory of 4804	2736	MAERSK KLEVEN V.949.exe	installutil.exe
PID 2736 wrote to memory of 4804	2736	MAERSK KLEVEN V.949.exe	installutil.exe
PID 2736 wrote to memory of 4804	2736	MAERSK KLEVEN V.949.exe	installutil.exe
PID 2736 wrote to memory of 4804	2736	MAERSK KLEVEN V.949.exe	installutil.exe

outlook_office_path 1 IoCs

Processes:

installutil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	installutil.exe

outlook_win_path 1 IoCs

Processes:

installutil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	installutil.exe

C:\Users\Admin\AppData\Local\Temp\MAERSK KLEVEN V.949.exe
"C:\Users\Admin\AppData\Local\Temp\MAERSK KLEVEN V.949.exe"
1⤵
- Modifies WinLogon for persistence
- Drops startup file
- Windows security modification
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2736

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"powershell" Get-MpPreference -verbose
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3656

C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:4804

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

4

T1112

Disabling Security Tools

2

T1089

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/2736-130-0x0000000000D80000-0x0000000001174000-memory.dmp

Filesize
4.0MB

Download
memory/2736-131-0x0000000005AA0000-0x0000000005B3C000-memory.dmp

Filesize
624KB

Download
memory/2736-132-0x0000000006160000-0x0000000006704000-memory.dmp

Filesize
5.6MB

Download
memory/3656-133-0x0000000000000000-mapping.dmp

Download
memory/3656-134-0x0000000002540000-0x0000000002576000-memory.dmp

Filesize
216KB

Download
memory/3656-135-0x0000000005010000-0x0000000005638000-memory.dmp

Filesize
6.2MB

Download
memory/3656-136-0x0000000004FB0000-0x0000000004FD2000-memory.dmp

Filesize
136KB

Download
memory/3656-137-0x0000000005770000-0x00000000057D6000-memory.dmp

Filesize
408KB

Download
memory/3656-138-0x0000000005850000-0x00000000058B6000-memory.dmp

Filesize
408KB

Download
memory/3656-139-0x0000000005E70000-0x0000000005E8E000-memory.dmp

Filesize
120KB

Download
memory/3656-140-0x0000000007020000-0x0000000007052000-memory.dmp

Filesize
200KB

Download
memory/3656-141-0x0000000071120000-0x000000007116C000-memory.dmp

Filesize
304KB

Download
memory/3656-142-0x0000000006FE0000-0x0000000006FFE000-memory.dmp

Filesize
120KB

Download
memory/3656-143-0x00000000077C0000-0x0000000007E3A000-memory.dmp

Filesize
6.5MB

Download
memory/3656-144-0x0000000007170000-0x000000000718A000-memory.dmp

Filesize
104KB

Download
memory/3656-145-0x00000000071E0000-0x00000000071EA000-memory.dmp

Filesize
40KB

Download
memory/3656-146-0x00000000073F0000-0x0000000007486000-memory.dmp

Filesize
600KB

Download
memory/3656-147-0x00000000073B0000-0x00000000073BE000-memory.dmp

Filesize
56KB

Download
memory/3656-148-0x00000000074C0000-0x00000000074DA000-memory.dmp

Filesize
104KB

Download
memory/3656-149-0x00000000074A0000-0x00000000074A8000-memory.dmp

Filesize
32KB

Download
memory/4804-150-0x0000000000000000-mapping.dmp

Download
memory/4804-151-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/4804-152-0x0000000004F70000-0x0000000005002000-memory.dmp

Filesize
584KB

Download
memory/4804-153-0x0000000006270000-0x00000000062C0000-memory.dmp

Filesize
320KB

Download
memory/4804-154-0x0000000006220000-0x000000000622A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads