agenttesla | 870f3518c84b1fe51b47fa3212b288d0f9f0d8871a57fae24d3045e7d5fe5162

General

Target

YMi3ytThK61izUO.exe
Size

754KB
MD5

7dd423980df5f2b5c17842894c77d77d
SHA1

4f0edaae8ae93da4b05269aa78ca46401712e5a8
SHA256

f6e560ce19f29365583a29c5b5bc2128dcc0d8e1c021b54f79f6ecadd723e21d
SHA512

5cd7f7d8d92c7ff98eb6cca1e146856bd2b894c3f7c1932beb603b1dbde79f2d8f932931417868ce987ea2e8a2889bcfcf75be7c258b59009dc56d4e28998fbb
SSDEEP

12288:/+9bQ+X8+UiDLbRHahkURhh7t7nrp2rMTmN2KCK34yYPFKnDkQ+xXhV:IbQ+X8+UiDLbRHahkUfh7RrkrMTw2KCr

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.aishaautornation.com
Port:
587
Username:
[email protected]
Password:
wOT@BBp9

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

resource	yara_rule
behavioral2/memory/3164-13-0x0000000000400000-0x000000000043C000-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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	YMi3ytThK61izUO.exe
Key opened	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	YMi3ytThK61izUO.exe
Key opened	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	YMi3ytThK61izUO.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1668 set thread context of 3164	1668	YMi3ytThK61izUO.exe	101

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	YMi3ytThK61izUO.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	YMi3ytThK61izUO.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
1668	YMi3ytThK61izUO.exe
1668	YMi3ytThK61izUO.exe
1668	YMi3ytThK61izUO.exe
1668	YMi3ytThK61izUO.exe
1668	YMi3ytThK61izUO.exe
1668	YMi3ytThK61izUO.exe
1668	YMi3ytThK61izUO.exe
1668	YMi3ytThK61izUO.exe
1668	YMi3ytThK61izUO.exe
1668	YMi3ytThK61izUO.exe
1668	YMi3ytThK61izUO.exe
3164	YMi3ytThK61izUO.exe
3164	YMi3ytThK61izUO.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1668	YMi3ytThK61izUO.exe
Token: SeDebugPrivilege	3164	YMi3ytThK61izUO.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1668 wrote to memory of 1528	1668	YMi3ytThK61izUO.exe	100
PID 1668 wrote to memory of 1528	1668	YMi3ytThK61izUO.exe	100
PID 1668 wrote to memory of 1528	1668	YMi3ytThK61izUO.exe	100
PID 1668 wrote to memory of 3164	1668	YMi3ytThK61izUO.exe	101
PID 1668 wrote to memory of 3164	1668	YMi3ytThK61izUO.exe	101
PID 1668 wrote to memory of 3164	1668	YMi3ytThK61izUO.exe	101
PID 1668 wrote to memory of 3164	1668	YMi3ytThK61izUO.exe	101
PID 1668 wrote to memory of 3164	1668	YMi3ytThK61izUO.exe	101
PID 1668 wrote to memory of 3164	1668	YMi3ytThK61izUO.exe	101
PID 1668 wrote to memory of 3164	1668	YMi3ytThK61izUO.exe	101
PID 1668 wrote to memory of 3164	1668	YMi3ytThK61izUO.exe	101

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	YMi3ytThK61izUO.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	YMi3ytThK61izUO.exe

C:\Users\Admin\AppData\Local\Temp\YMi3ytThK61izUO.exe
"C:\Users\Admin\AppData\Local\Temp\YMi3ytThK61izUO.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1668
- C:\Users\Admin\AppData\Local\Temp\YMi3ytThK61izUO.exe
  "C:\Users\Admin\AppData\Local\Temp\YMi3ytThK61izUO.exe"
  2⤵
  PID:1528
- C:\Users\Admin\AppData\Local\Temp\YMi3ytThK61izUO.exe
  "C:\Users\Admin\AppData\Local\Temp\YMi3ytThK61izUO.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3164

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

Loading Replay Monitor...

Downloads

memory/1668-12-0x00000000066A0000-0x00000000066EE000-memory.dmp

Filesize
312KB

Download
memory/1668-7-0x00000000059C0000-0x00000000059DA000-memory.dmp

Filesize
104KB

Download
memory/1668-2-0x0000000005F70000-0x0000000006514000-memory.dmp

Filesize
5.6MB

Download
memory/1668-3-0x00000000058E0000-0x0000000005972000-memory.dmp

Filesize
584KB

Download
memory/1668-4-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/1668-5-0x0000000005980000-0x000000000598A000-memory.dmp

Filesize
40KB

Download
memory/1668-6-0x0000000005C40000-0x0000000005CDC000-memory.dmp

Filesize
624KB

Download
memory/1668-0-0x000000007487E000-0x000000007487F000-memory.dmp

Filesize
4KB

Download
memory/1668-8-0x000000007487E000-0x000000007487F000-memory.dmp

Filesize
4KB

Download
memory/1668-9-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/1668-10-0x0000000006900000-0x0000000006980000-memory.dmp

Filesize
512KB

Download
memory/1668-1-0x0000000000E20000-0x0000000000EE2000-memory.dmp

Filesize
776KB

Download
memory/1668-16-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/1668-11-0x0000000005F30000-0x0000000005F36000-memory.dmp

Filesize
24KB

Download
memory/3164-22-0x0000000006600000-0x0000000006650000-memory.dmp

Filesize
320KB

Download
memory/3164-15-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/3164-17-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/3164-18-0x0000000005A40000-0x0000000005A58000-memory.dmp

Filesize
96KB

Download
memory/3164-19-0x00000000063E0000-0x0000000006446000-memory.dmp

Filesize
408KB

Download
memory/3164-20-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/3164-21-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/3164-13-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3164-23-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/3164-24-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing