agenttesla | bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342 | Triage

Analysis

max time kernel
133s
max time network
46s
platform
windows7_x64
resource
win7-20220414-en
submitted
21-05-2022 01:38

Sharing

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General

Target

bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe
Size

388KB
MD5

54ea8a84f32926bccd4d9371aa32a2a7
SHA1

38c3a0d14279074d63ccd5a4edf915d87636d365
SHA256

bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342
SHA512

b18c3187223d5ef59201d80f7e3fae59e7658b4de3e3532193c9bd5ca1758946f7a4e0a64dfaa7409c0e77b04f5419c156f874d581980fe55e34257f5f818841

Score

10^/10

agenttesla collection keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.megaworldcorps.com
Port:
587
Username:
[email protected]
Password:
UBx@@re1

Signatures

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

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1160-61-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1160-62-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1160-63-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1160-64-0x0000000000446BDE-mapping.dmp	family_agenttesla
behavioral1/memory/1160-66-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1160-68-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

Processes:

resource	yara_rule
behavioral1/memory/1664-57-0x0000000000C20000-0x0000000000C72000-memory.dmp	rezer0

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

Email Collection

Processes:

bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe

description	pid	process	target process
PID 1664 set thread context of 1160	1664	bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe	bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe

pid	process
1160	bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe
1160	bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe

description pid process

Token: SeDebugPrivilege 1160 bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe

description	pid	process	target process
PID 1664 wrote to memory of 1160	1664	bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe	bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe
PID 1664 wrote to memory of 1160	1664	bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe	bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe
PID 1664 wrote to memory of 1160	1664	bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe	bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe
PID 1664 wrote to memory of 1160	1664	bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe	bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe
PID 1664 wrote to memory of 1160	1664	bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe	bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe
PID 1664 wrote to memory of 1160	1664	bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe	bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe
PID 1664 wrote to memory of 1160	1664	bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe	bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe
PID 1664 wrote to memory of 1160	1664	bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe	bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe
PID 1664 wrote to memory of 1160	1664	bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe	bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe

outlook_office_path 1 IoCs

Processes:

bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe

outlook_win_path 1 IoCs

Processes:

bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe

C:\Users\Admin\AppData\Local\Temp\bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe
"C:\Users\Admin\AppData\Local\Temp\bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1664

C:\Users\Admin\AppData\Local\Temp\bee7335822adad100e62824cc28283de9513e8d3141752a7f52a0cbe8b2f0342.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1160

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1160-58-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1160-59-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1160-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1160-62-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1160-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1160-64-0x0000000000446BDE-mapping.dmp

Download
memory/1160-66-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1160-68-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1664-54-0x0000000000CA0000-0x0000000000D08000-memory.dmp

Filesize
416KB

Download
memory/1664-55-0x00000000754A1000-0x00000000754A3000-memory.dmp

Filesize
8KB

Download
memory/1664-56-0x0000000000450000-0x0000000000458000-memory.dmp

Filesize
32KB

Download
memory/1664-57-0x0000000000C20000-0x0000000000C72000-memory.dmp

Filesize
328KB

Download