agenttesla | 21ad83b8f2f2e05f6c360385b6c1e49df1fd0a80fd6df16294446020d7d5daff

General

Target

3b0ff99c761cab5012ae2239140d12e2b928dfad8318b9fdf7bebfd79ce6473d.exe
Size

708KB
MD5

05337490c508d7a5758d88ff7c3adf4b
SHA1

9c1549112487caa30160d907b1931532b10dd51e
SHA256

3b0ff99c761cab5012ae2239140d12e2b928dfad8318b9fdf7bebfd79ce6473d
SHA512

3a18cf6b803822512e32d42c353e4df1db0255689b8ba4959a74924e1188b258ebd546d38227fe471b8ebb3153864dbd47cc30ecfc6be2c39528ac74cb0b4b63
SSDEEP

12288:X/2zXVQ56hf7l+N+eL9NSu4t7LrStXMo51N7h+5oTsEw61et:P2ZQSpghL9NSz73KXMsRIis161e

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.stacm.com
Port:
587
Username:
[email protected]
Password:
Fercho50*luz
Email To:
[email protected]

Signatures

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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3b0ff99c761cab5012ae2239140d12e2b928dfad8318b9fdf7bebfd79ce6473d.exe
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3b0ff99c761cab5012ae2239140d12e2b928dfad8318b9fdf7bebfd79ce6473d.exe
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3b0ff99c761cab5012ae2239140d12e2b928dfad8318b9fdf7bebfd79ce6473d.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3032 set thread context of 3056	3032	3b0ff99c761cab5012ae2239140d12e2b928dfad8318b9fdf7bebfd79ce6473d.exe	31

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	3b0ff99c761cab5012ae2239140d12e2b928dfad8318b9fdf7bebfd79ce6473d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3b0ff99c761cab5012ae2239140d12e2b928dfad8318b9fdf7bebfd79ce6473d.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3056	3b0ff99c761cab5012ae2239140d12e2b928dfad8318b9fdf7bebfd79ce6473d.exe
3056	3b0ff99c761cab5012ae2239140d12e2b928dfad8318b9fdf7bebfd79ce6473d.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3056	3b0ff99c761cab5012ae2239140d12e2b928dfad8318b9fdf7bebfd79ce6473d.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3056	3b0ff99c761cab5012ae2239140d12e2b928dfad8318b9fdf7bebfd79ce6473d.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3032 wrote to memory of 3056	3032	3b0ff99c761cab5012ae2239140d12e2b928dfad8318b9fdf7bebfd79ce6473d.exe	31
PID 3032 wrote to memory of 3056	3032	3b0ff99c761cab5012ae2239140d12e2b928dfad8318b9fdf7bebfd79ce6473d.exe	31
PID 3032 wrote to memory of 3056	3032	3b0ff99c761cab5012ae2239140d12e2b928dfad8318b9fdf7bebfd79ce6473d.exe	31
PID 3032 wrote to memory of 3056	3032	3b0ff99c761cab5012ae2239140d12e2b928dfad8318b9fdf7bebfd79ce6473d.exe	31
PID 3032 wrote to memory of 3056	3032	3b0ff99c761cab5012ae2239140d12e2b928dfad8318b9fdf7bebfd79ce6473d.exe	31
PID 3032 wrote to memory of 3056	3032	3b0ff99c761cab5012ae2239140d12e2b928dfad8318b9fdf7bebfd79ce6473d.exe	31
PID 3032 wrote to memory of 3056	3032	3b0ff99c761cab5012ae2239140d12e2b928dfad8318b9fdf7bebfd79ce6473d.exe	31
PID 3032 wrote to memory of 3056	3032	3b0ff99c761cab5012ae2239140d12e2b928dfad8318b9fdf7bebfd79ce6473d.exe	31
PID 3032 wrote to memory of 3056	3032	3b0ff99c761cab5012ae2239140d12e2b928dfad8318b9fdf7bebfd79ce6473d.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3b0ff99c761cab5012ae2239140d12e2b928dfad8318b9fdf7bebfd79ce6473d.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3b0ff99c761cab5012ae2239140d12e2b928dfad8318b9fdf7bebfd79ce6473d.exe

C:\Users\Admin\AppData\Local\Temp\3b0ff99c761cab5012ae2239140d12e2b928dfad8318b9fdf7bebfd79ce6473d.exe
"C:\Users\Admin\AppData\Local\Temp\3b0ff99c761cab5012ae2239140d12e2b928dfad8318b9fdf7bebfd79ce6473d.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3032
- C:\Users\Admin\AppData\Local\Temp\3b0ff99c761cab5012ae2239140d12e2b928dfad8318b9fdf7bebfd79ce6473d.exe
  "C:\Users\Admin\AppData\Local\Temp\3b0ff99c761cab5012ae2239140d12e2b928dfad8318b9fdf7bebfd79ce6473d.exe"
  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:3056

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/3032-21-0x00000000742A0000-0x000000007498E000-memory.dmp

Filesize
6.9MB

Download
memory/3032-2-0x00000000742A0000-0x000000007498E000-memory.dmp

Filesize
6.9MB

Download
memory/3032-0-0x00000000742AE000-0x00000000742AF000-memory.dmp

Filesize
4KB

Download
memory/3032-3-0x0000000000260000-0x0000000000272000-memory.dmp

Filesize
72KB

Download
memory/3032-4-0x00000000742AE000-0x00000000742AF000-memory.dmp

Filesize
4KB

Download
memory/3032-5-0x00000000742A0000-0x000000007498E000-memory.dmp

Filesize
6.9MB

Download
memory/3032-6-0x0000000005D80000-0x0000000005E0A000-memory.dmp

Filesize
552KB

Download
memory/3032-7-0x0000000004370000-0x00000000043B8000-memory.dmp

Filesize
288KB

Download
memory/3032-1-0x0000000000A70000-0x0000000000B24000-memory.dmp

Filesize
720KB

Download
memory/3056-20-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/3056-26-0x00000000742A0000-0x000000007498E000-memory.dmp

Filesize
6.9MB

Download
memory/3056-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3056-8-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/3056-16-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/3056-9-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/3056-12-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/3056-23-0x00000000742A0000-0x000000007498E000-memory.dmp

Filesize
6.9MB

Download
memory/3056-22-0x00000000742A0000-0x000000007498E000-memory.dmp

Filesize
6.9MB

Download
memory/3056-18-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/3056-24-0x00000000742A0000-0x000000007498E000-memory.dmp

Filesize
6.9MB

Download
memory/3056-25-0x00000000742A0000-0x000000007498E000-memory.dmp

Filesize
6.9MB

Download
memory/3056-10-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download

Analysis

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