agenttesla | f5a0d64c5abea4b018d6e7063cd865ac1b5bfbcf933d0a00ff1f9526c273ebae

General

Target

J20012045.exe
Size

629KB
MD5

9cfac2bf860acb8b144a869bd522d7a7
SHA1

d9338f01b3d32e4bf3065001893a5e4dc718af82
SHA256

1c1c6bfbfeae548e4d7bb7fd4979a7c4a5096d578e74474684d6dc746149f866
SHA512

1479cd423adba702997f1898c956be4e3ca8adb241af3592641e31a13a481692edeffe6751561b2b55e1564ff1fe14b5d28b670414c8e2f2df2f59949e86f00a
SSDEEP

12288:LdncajSmEs0N7eCiGJEZOhATkYwfIInbqKbfS6ntAIaC:5ca/EJiAdhbYwfIqbvbRtA5C

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.hybridgroupco.com
Port:
587
Username:
[email protected]
Password:
Obinna123@@@

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral2/memory/3984-5-0x0000000000400000-0x000000000043C000-memory.dmp	family_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
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
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	J20012045.exe
Key opened	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	J20012045.exe
Key opened	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	J20012045.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4444 set thread context of 3984	4444	J20012045.exe	98

System Location Discovery: System Language Discovery 1 TTPs 2 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	J20012045.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	J20012045.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
4444	J20012045.exe
4444	J20012045.exe
4444	J20012045.exe
3984	J20012045.exe
3984	J20012045.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4444	J20012045.exe
Token: SeDebugPrivilege	3984	J20012045.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4444 wrote to memory of 3984	4444	J20012045.exe	98
PID 4444 wrote to memory of 3984	4444	J20012045.exe	98
PID 4444 wrote to memory of 3984	4444	J20012045.exe	98
PID 4444 wrote to memory of 3984	4444	J20012045.exe	98
PID 4444 wrote to memory of 3984	4444	J20012045.exe	98
PID 4444 wrote to memory of 3984	4444	J20012045.exe	98
PID 4444 wrote to memory of 3984	4444	J20012045.exe	98
PID 4444 wrote to memory of 3984	4444	J20012045.exe	98

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	J20012045.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	J20012045.exe

C:\Users\Admin\AppData\Local\Temp\J20012045.exe
"C:\Users\Admin\AppData\Local\Temp\J20012045.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4444
- C:\Users\Admin\AppData\Local\Temp\J20012045.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3984

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

5

T1552

Credentials In Files

4

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3984-9-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download
memory/3984-12-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download
memory/3984-15-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download
memory/3984-14-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download
memory/3984-10-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download
memory/3984-5-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3984-13-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download
memory/3984-11-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download
memory/3984-7-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download
memory/4444-4-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download
memory/4444-8-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download
memory/4444-0-0x0000000075042000-0x0000000075043000-memory.dmp

Filesize
4KB

Download
memory/4444-1-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download
memory/4444-3-0x0000000075042000-0x0000000075043000-memory.dmp

Filesize
4KB

Download
memory/4444-2-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download

Analysis

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