agenttesla | 4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702

General

Target

4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe
Size

513KB
MD5

cc9fb4b29b4f58be085fe5dcd84b2013
SHA1

3afd78508a772c8c074371c4506520270a8dccb7
SHA256

4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702
SHA512

c4a9728e4188a4080958654ddc6f567fd0045b32914e27d6ce643a9b679953673ac6bc9aaf48e3418590be6f5bbeeda6c82f567c6bdf50e7a7dd1f8082b30629
SSDEEP

12288:Wz4VIt8LFmbgVw729R/OddvURe15AfOK:9VM8ZV5f09c

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.finalegitim.com.tr
Port:
587
Username:
[email protected]
Password:
ek1234final

Signatures

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

AgentTesla payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4992-5-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

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 3 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

Credentials from Web Browsers
T1555.003
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

Processes:

4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow	ioc
36	api.ipify.org
37	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

Processes:

4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe

description	pid	Process	procid_target
PID 4944 set thread context of 4992	4944	4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe	99

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

Processes:

4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe

pid	Process
4992	4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe
4992	4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe

description	pid	Process
Token: SeDebugPrivilege	4992	4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe

pid	Process
4992	4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe

description	pid	Process	procid_target
PID 4944 wrote to memory of 4992	4944	4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe	99
PID 4944 wrote to memory of 4992	4944	4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe	99
PID 4944 wrote to memory of 4992	4944	4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe	99
PID 4944 wrote to memory of 4992	4944	4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe	99
PID 4944 wrote to memory of 4992	4944	4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe	99
PID 4944 wrote to memory of 4992	4944	4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe	99
PID 4944 wrote to memory of 4992	4944	4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe	99
PID 4944 wrote to memory of 4992	4944	4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe	99

outlook_office_path 1 IoCs

Processes:

4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe

outlook_win_path 1 IoCs

Processes:

4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe

C:\Users\Admin\AppData\Local\Temp\4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe
"C:\Users\Admin\AppData\Local\Temp\4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4944
- C:\Users\Admin\AppData\Local\Temp\4143ec248589124b2f5370155c222176fae5d8acaf2588c6d7ecde9d285df702.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:4992

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

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Downloads

memory/4944-0-0x0000000074802000-0x0000000074803000-memory.dmp

Filesize
4KB

Download
memory/4944-1-0x0000000074800000-0x0000000074DB1000-memory.dmp

Filesize
5.7MB

Download
memory/4944-2-0x0000000074800000-0x0000000074DB1000-memory.dmp

Filesize
5.7MB

Download
memory/4944-3-0x0000000074802000-0x0000000074803000-memory.dmp

Filesize
4KB

Download
memory/4944-4-0x0000000074800000-0x0000000074DB1000-memory.dmp

Filesize
5.7MB

Download
memory/4944-10-0x0000000074800000-0x0000000074DB1000-memory.dmp

Filesize
5.7MB

Download
memory/4992-9-0x0000000074800000-0x0000000074DB1000-memory.dmp

Filesize
5.7MB

Download
memory/4992-8-0x0000000074800000-0x0000000074DB1000-memory.dmp

Filesize
5.7MB

Download
memory/4992-7-0x0000000074800000-0x0000000074DB1000-memory.dmp

Filesize
5.7MB

Download
memory/4992-5-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4992-11-0x0000000074800000-0x0000000074DB1000-memory.dmp

Filesize
5.7MB

Download
memory/4992-12-0x0000000074800000-0x0000000074DB1000-memory.dmp

Filesize
5.7MB

Download
memory/4992-13-0x0000000074800000-0x0000000074DB1000-memory.dmp

Filesize
5.7MB

Download
memory/4992-14-0x0000000074800000-0x0000000074DB1000-memory.dmp

Filesize
5.7MB

Download
memory/4992-15-0x0000000074800000-0x0000000074DB1000-memory.dmp

Filesize
5.7MB

Download
memory/4992-16-0x0000000074800000-0x0000000074DB1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads