agenttesla | 5f1062d2bb1b46b2ad72e7bc0e14c1b5a317a1b941a59ee7dc15ba27afe880ee

General

Target

AIT435543exe.exe
Size

604KB
MD5

08a8436f9dd4d72ac7545adcd2176849
SHA1

31b625388d14f4cdc6a6d1fcfbf302076f7be507
SHA256

5f1062d2bb1b46b2ad72e7bc0e14c1b5a317a1b941a59ee7dc15ba27afe880ee
SHA512

c30720a6182c11432757946e93964543103506cf43580614684f873b9f4f2581bd8e54b8a8cba2ac7681f6514fc54f5bae4d4ec3680b4dbe27e2d56bf20351a2
SSDEEP

12288:MNaWonQ3fR/mOvYUG3eqdWdoiiQXyJyxVkKs12I:WzoyeONGuqdWGiiXyxY12I

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.chestronics.com
Port:
587
Username:
[email protected]
Password:
]DV(A,K%8op6
Email To:
[email protected]

Signatures

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

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AIT435543exe.exe
Key opened	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AIT435543exe.exe
Key opened	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AIT435543exe.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.

flow	ioc
4	api.ipify.org
5	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2396 set thread context of 1148	2396	AIT435543exe.exe	28

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1148	AIT435543exe.exe
1148	AIT435543exe.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1148	AIT435543exe.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2396 wrote to memory of 1148	2396	AIT435543exe.exe	28
PID 2396 wrote to memory of 1148	2396	AIT435543exe.exe	28
PID 2396 wrote to memory of 1148	2396	AIT435543exe.exe	28
PID 2396 wrote to memory of 1148	2396	AIT435543exe.exe	28
PID 2396 wrote to memory of 1148	2396	AIT435543exe.exe	28
PID 2396 wrote to memory of 1148	2396	AIT435543exe.exe	28
PID 2396 wrote to memory of 1148	2396	AIT435543exe.exe	28
PID 2396 wrote to memory of 1148	2396	AIT435543exe.exe	28
PID 2396 wrote to memory of 1148	2396	AIT435543exe.exe	28

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AIT435543exe.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AIT435543exe.exe

C:\Users\Admin\AppData\Local\Temp\AIT435543exe.exe
"C:\Users\Admin\AppData\Local\Temp\AIT435543exe.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2396
- C:\Users\Admin\AppData\Local\Temp\AIT435543exe.exe
  "C:\Users\Admin\AppData\Local\Temp\AIT435543exe.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1148

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1148-63-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1148-64-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1148-70-0x0000000004C50000-0x0000000004C90000-memory.dmp

Filesize
256KB

Download
memory/1148-69-0x0000000004C50000-0x0000000004C90000-memory.dmp

Filesize
256KB

Download
memory/1148-68-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1148-59-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1148-66-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1148-62-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1148-60-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1148-61-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2396-54-0x0000000001320000-0x00000000013BE000-memory.dmp

Filesize
632KB

Download
memory/2396-55-0x00000000007F0000-0x0000000000830000-memory.dmp

Filesize
256KB

Download
memory/2396-58-0x00000000054B0000-0x000000000551A000-memory.dmp

Filesize
424KB

Download
memory/2396-57-0x0000000000370000-0x000000000037C000-memory.dmp

Filesize
48KB

Download
memory/2396-56-0x0000000000350000-0x000000000035C000-memory.dmp

Filesize
48KB

Download

Analysis

Sharing