agenttesla | cb9790cad0a60c5d06786c99700a84a880c04abf6477ab97453b13ba386306f4

Analysis

max time kernel
122s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
10-10-2024 08:06

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Documents.exe
Size

1.1MB
MD5

10e88aa57f10e0a3d7ac679156cdf11e
SHA1

66d7694bbdbed1a836feb160ebed7d647d3d45e2
SHA256

cb9790cad0a60c5d06786c99700a84a880c04abf6477ab97453b13ba386306f4
SHA512

4c4265386fc8a7e04bcf776d8f16988da807de085f9aa4cee9477fe3f618d98051c5db918107964de6af9baa2a6b8f7f2de27ca5ece3db62a1ea6b08bb5d12e0
SSDEEP

24576:ffmMv6Ckr7Mny5QL5AZrIdN0SUCPbWLfN:f3v+7/5QL5gxCPIN

Score

10^/10

agenttesla discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.starmech.net
Port:
587
Username:
[email protected]
Password:
nics123
Email To:
[email protected]

Signatures

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\BjTxJte = "C:\\Users\\Admin\\AppData\\Roaming\\BjTxJte\\BjTxJte.exe"	RegSvcs.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
5	api.ipify.org
4	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1668 set thread context of 2104	1668	Documents.exe	31

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	Documents.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2104	RegSvcs.exe
2104	RegSvcs.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
1668	Documents.exe
1668	Documents.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2104	RegSvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2104	RegSvcs.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1668 wrote to memory of 2104	1668	Documents.exe	31
PID 1668 wrote to memory of 2104	1668	Documents.exe	31
PID 1668 wrote to memory of 2104	1668	Documents.exe	31
PID 1668 wrote to memory of 2104	1668	Documents.exe	31
PID 1668 wrote to memory of 2104	1668	Documents.exe	31
PID 1668 wrote to memory of 2104	1668	Documents.exe	31
PID 1668 wrote to memory of 2104	1668	Documents.exe	31
PID 1668 wrote to memory of 2104	1668	Documents.exe	31

C:\Users\Admin\AppData\Local\Temp\Documents.exe
"C:\Users\Admin\AppData\Local\Temp\Documents.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1668
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Users\Admin\AppData\Local\Temp\Documents.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2104

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1668-2-0x0000000003500000-0x0000000003900000-memory.dmp

Filesize
4.0MB

Download
memory/2104-3-0x0000000000090000-0x00000000000D2000-memory.dmp

Filesize
264KB

Download
memory/2104-5-0x0000000000090000-0x00000000000D2000-memory.dmp

Filesize
264KB

Download
memory/2104-12-0x0000000000090000-0x00000000000D2000-memory.dmp

Filesize
264KB

Download
memory/2104-9-0x0000000000090000-0x00000000000D2000-memory.dmp

Filesize
264KB

Download
memory/2104-13-0x0000000073CAE000-0x0000000073CAF000-memory.dmp

Filesize
4KB

Download
memory/2104-14-0x0000000073CA0000-0x000000007438E000-memory.dmp

Filesize
6.9MB

Download
memory/2104-16-0x0000000073CAE000-0x0000000073CAF000-memory.dmp

Filesize
4KB

Download
memory/2104-17-0x0000000073CA0000-0x000000007438E000-memory.dmp

Filesize
6.9MB

Download