agenttesla | eeff87f3b345b9b42f721cfdd82fa81e229c7599ef4a24d3af914e2740a7a44c

Analysis

max time kernel
122s
max time network
127s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
21-11-2023 02:01

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General

Target

231121-06-AgentTesla-b971a6.exe
Size

570KB
MD5

65edafe0dc5427f4cec4e29ad9cb18bc
SHA1

b971a6aaf0c0daa035d9186b9cc49e72a5fc9976
SHA256

e68f725f8d131c3cc5e5cbac5bc454cd9c1848039ee706c975262ef2073e75d3
SHA512

a0c4bb45bd0dfa245a13502f0e51758ca2ec878a9eeec3ec0b82cdb2125981bf0de89f07c84029360676149bb61476345a032c9338bf9a3e304ea4e9e4e6b8fe
SSDEEP

12288:bXHfGsaMlvWCwqLRtT34We8Op0UHUpIPEGWQAwna:bXHe8BLRtTn52EG5Awna

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.experthvac.ro
Port:
21
Username:
[email protected]
Password:
-8{jszMOY*Z8(~Za0#jyP%o7VoB.0)kk^)7_

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
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:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

231121-06-AgentTesla-b971a6.exe

description pid process target process

PID 2412 set thread context of 2588 2412 231121-06-AgentTesla-b971a6.exe RegAsm.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

231121-06-AgentTesla-b971a6.exe

pid process

2412 231121-06-AgentTesla-b971a6.exe
2412 231121-06-AgentTesla-b971a6.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

231121-06-AgentTesla-b971a6.exeRegAsm.exe

description pid process

Token: SeDebugPrivilege 2412 231121-06-AgentTesla-b971a6.exe
Token: SeDebugPrivilege 2588 RegAsm.exe

description	pid	process	target process
PID 2412 set thread context of 2588	2412	231121-06-AgentTesla-b971a6.exe	RegAsm.exe

pid	process
2412	231121-06-AgentTesla-b971a6.exe
2412	231121-06-AgentTesla-b971a6.exe

description	pid	process
Token: SeDebugPrivilege	2412	231121-06-AgentTesla-b971a6.exe
Token: SeDebugPrivilege	2588	RegAsm.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

231121-06-AgentTesla-b971a6.exe

description	pid	process	target process
PID 2412 wrote to memory of 2588	2412	231121-06-AgentTesla-b971a6.exe	RegAsm.exe
PID 2412 wrote to memory of 2588	2412	231121-06-AgentTesla-b971a6.exe	RegAsm.exe
PID 2412 wrote to memory of 2588	2412	231121-06-AgentTesla-b971a6.exe	RegAsm.exe
PID 2412 wrote to memory of 2588	2412	231121-06-AgentTesla-b971a6.exe	RegAsm.exe
PID 2412 wrote to memory of 2588	2412	231121-06-AgentTesla-b971a6.exe	RegAsm.exe
PID 2412 wrote to memory of 2588	2412	231121-06-AgentTesla-b971a6.exe	RegAsm.exe
PID 2412 wrote to memory of 2588	2412	231121-06-AgentTesla-b971a6.exe	RegAsm.exe
PID 2412 wrote to memory of 2588	2412	231121-06-AgentTesla-b971a6.exe	RegAsm.exe
PID 2412 wrote to memory of 2588	2412	231121-06-AgentTesla-b971a6.exe	RegAsm.exe
PID 2412 wrote to memory of 2588	2412	231121-06-AgentTesla-b971a6.exe	RegAsm.exe
PID 2412 wrote to memory of 2588	2412	231121-06-AgentTesla-b971a6.exe	RegAsm.exe
PID 2412 wrote to memory of 2588	2412	231121-06-AgentTesla-b971a6.exe	RegAsm.exe

outlook_office_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\231121-06-AgentTesla-b971a6.exe
"C:\Users\Admin\AppData\Local\Temp\231121-06-AgentTesla-b971a6.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2412
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2588

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2412-8-0x0000000004DF0000-0x0000000004E30000-memory.dmp

Filesize
256KB

Download
memory/2412-2-0x0000000004DF0000-0x0000000004E30000-memory.dmp

Filesize
256KB

Download
memory/2412-0-0x0000000000FC0000-0x0000000001054000-memory.dmp

Filesize
592KB

Download
memory/2412-17-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/2412-4-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/2412-5-0x0000000004DF0000-0x0000000004E30000-memory.dmp

Filesize
256KB

Download
memory/2412-6-0x0000000000710000-0x000000000072A000-memory.dmp

Filesize
104KB

Download
memory/2412-7-0x00000000009F0000-0x00000000009F6000-memory.dmp

Filesize
24KB

Download
memory/2412-3-0x00000000006A0000-0x00000000006E4000-memory.dmp

Filesize
272KB

Download
memory/2412-1-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/2588-15-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2588-12-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2588-10-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2588-9-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2588-14-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2588-16-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2588-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2588-11-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download