agenttesla | 749fe6d590f8ab687cda4bfa897684dbc772e56a54bc4088fe654a079d9cf7ac

General

Target

20240328-REV2.exe
Size

619KB
MD5

ed1e2fd68e9de44ea4e01c7897f64411
SHA1

a42eb4e6084ac91d1fad3ef9fe01d8d3e9db0c26
SHA256

37109eb42fff729d1786ca4b676167f7acaa918a4abaf3bb465cfed6efa2b134
SHA512

6bef9338609c2d307ace1620d8e8c8a7d2888448b04a259dbd54937aa92255f8805c696558177303e95ebcf74d041d995b392e6084a92f80789d7422d02f7bf1
SSDEEP

12288:gYIPXjyEcoqe8OKZDOZqB8tMX4tVOiaatVSSDc1ow1rxEdex:gYIPuEtq/KoDX4XaaaSo1DUd

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.mbarieservicesltd.com
Port:
587
Username:
[email protected]
Password:
*o9H+18Q4%;M
Email To:
[email protected]

Signatures

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

Detect packed .NET executables. Mostly AgentTeslaV4. 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2548-18-0x0000000000400000-0x0000000000430000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2548-16-0x0000000000400000-0x0000000000430000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2548-14-0x0000000000400000-0x0000000000430000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2548-11-0x0000000000400000-0x0000000000430000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2548-10-0x0000000000400000-0x0000000000430000-memory.dmp	INDICATOR_EXE_Packed_GEN01

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

20240328-REV2.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	20240328-REV2.exe
Key opened	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	20240328-REV2.exe
Key opened	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	20240328-REV2.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

20240328-REV2.exe

description pid process target process

PID 2868 set thread context of 2548 2868 20240328-REV2.exe 20240328-REV2.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2716 2868 WerFault.exe 20240328-REV2.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

2636 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

20240328-REV2.exepowershell.exe

description pid process

Token: SeDebugPrivilege 2548 20240328-REV2.exe
Token: SeDebugPrivilege 2636 powershell.exe

description	pid	process	target process
PID 2868 set thread context of 2548	2868	20240328-REV2.exe	20240328-REV2.exe

pid	pid_target	process	target process
2716	2868	WerFault.exe	20240328-REV2.exe

pid	process
2636	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2548	20240328-REV2.exe
Token: SeDebugPrivilege	2636	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

20240328-REV2.exe

description	pid	process	target process
PID 2868 wrote to memory of 2636	2868	20240328-REV2.exe	powershell.exe
PID 2868 wrote to memory of 2636	2868	20240328-REV2.exe	powershell.exe
PID 2868 wrote to memory of 2636	2868	20240328-REV2.exe	powershell.exe
PID 2868 wrote to memory of 2636	2868	20240328-REV2.exe	powershell.exe
PID 2868 wrote to memory of 2548	2868	20240328-REV2.exe	20240328-REV2.exe
PID 2868 wrote to memory of 2548	2868	20240328-REV2.exe	20240328-REV2.exe
PID 2868 wrote to memory of 2548	2868	20240328-REV2.exe	20240328-REV2.exe
PID 2868 wrote to memory of 2548	2868	20240328-REV2.exe	20240328-REV2.exe
PID 2868 wrote to memory of 2548	2868	20240328-REV2.exe	20240328-REV2.exe
PID 2868 wrote to memory of 2548	2868	20240328-REV2.exe	20240328-REV2.exe
PID 2868 wrote to memory of 2548	2868	20240328-REV2.exe	20240328-REV2.exe
PID 2868 wrote to memory of 2548	2868	20240328-REV2.exe	20240328-REV2.exe
PID 2868 wrote to memory of 2548	2868	20240328-REV2.exe	20240328-REV2.exe
PID 2868 wrote to memory of 2716	2868	20240328-REV2.exe	WerFault.exe
PID 2868 wrote to memory of 2716	2868	20240328-REV2.exe	WerFault.exe
PID 2868 wrote to memory of 2716	2868	20240328-REV2.exe	WerFault.exe
PID 2868 wrote to memory of 2716	2868	20240328-REV2.exe	WerFault.exe

outlook_office_path 1 IoCs

Processes:

20240328-REV2.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	20240328-REV2.exe

outlook_win_path 1 IoCs

Processes:

20240328-REV2.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	20240328-REV2.exe

C:\Users\Admin\AppData\Local\Temp\20240328-REV2.exe
"C:\Users\Admin\AppData\Local\Temp\20240328-REV2.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2868

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\20240328-REV2.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2636

C:\Users\Admin\AppData\Local\Temp\20240328-REV2.exe
"C:\Users\Admin\AppData\Local\Temp\20240328-REV2.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2548

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 900
2⤵
- Program crash
PID:2716

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

4

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

memory/2548-8-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2548-18-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2548-6-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2548-10-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2548-14-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2548-11-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2548-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2548-16-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2868-4-0x00000000004F0000-0x0000000000504000-memory.dmp

Filesize
80KB

Download
memory/2868-1-0x0000000074A20000-0x000000007510E000-memory.dmp

Filesize
6.9MB

Download
memory/2868-5-0x0000000004C80000-0x0000000004CF2000-memory.dmp

Filesize
456KB

Download
memory/2868-3-0x0000000000540000-0x0000000000560000-memory.dmp

Filesize
128KB

Download
memory/2868-0-0x0000000000960000-0x0000000000A02000-memory.dmp

Filesize
648KB

Download
memory/2868-2-0x0000000004D40000-0x0000000004D80000-memory.dmp

Filesize
256KB

Download
memory/2868-21-0x0000000074A20000-0x000000007510E000-memory.dmp

Filesize
6.9MB

Download
memory/2868-22-0x0000000004D40000-0x0000000004D80000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads