agenttesla | 28d35f312f960967d6d5a5339fa1d2f810842d38ceed7fa2f866b1cce5e1120e

General

Target

d8b19fefa16286cf8464028f714fe360_JaffaCakes118.exe
Size

1.8MB
MD5

d8b19fefa16286cf8464028f714fe360
SHA1

9bdd5fdffa0231df9ec5c0bd9f1ba8e187f89193
SHA256

28d35f312f960967d6d5a5339fa1d2f810842d38ceed7fa2f866b1cce5e1120e
SHA512

cc1a7fdc3b1e741fdfae58db3d1d1aef1cb9413cc55dba107dfbe60da2030fab955105f194839fe6fab1746432a739400b23ada004365dcb6556d4aa17d71f84
SSDEEP

24576:TCdxte/80jYLT3U1jfsWacqm3Plnew+wvEP7gJ0KOaV4X/AQ:6w80cTsjkWacqm39uw8P7o0wq7

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
payment1759

Signatures

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

AgentTesla payload 3 IoCs

resource	yara_rule
behavioral1/memory/2896-2-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/2896-6-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/2896-4-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
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 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
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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 536 set thread context of 2896	536	d8b19fefa16286cf8464028f714fe360_JaffaCakes118.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	d8b19fefa16286cf8464028f714fe360_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2896	RegAsm.exe
2896	RegAsm.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
536	d8b19fefa16286cf8464028f714fe360_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2896	RegAsm.exe

Suspicious use of FindShellTrayWindow 5 IoCs

pid	Process
536	d8b19fefa16286cf8464028f714fe360_JaffaCakes118.exe
536	d8b19fefa16286cf8464028f714fe360_JaffaCakes118.exe
536	d8b19fefa16286cf8464028f714fe360_JaffaCakes118.exe
536	d8b19fefa16286cf8464028f714fe360_JaffaCakes118.exe
536	d8b19fefa16286cf8464028f714fe360_JaffaCakes118.exe

Suspicious use of SendNotifyMessage 5 IoCs

pid	Process
536	d8b19fefa16286cf8464028f714fe360_JaffaCakes118.exe
536	d8b19fefa16286cf8464028f714fe360_JaffaCakes118.exe
536	d8b19fefa16286cf8464028f714fe360_JaffaCakes118.exe
536	d8b19fefa16286cf8464028f714fe360_JaffaCakes118.exe
536	d8b19fefa16286cf8464028f714fe360_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2896	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 536 wrote to memory of 2896	536	d8b19fefa16286cf8464028f714fe360_JaffaCakes118.exe	31
PID 536 wrote to memory of 2896	536	d8b19fefa16286cf8464028f714fe360_JaffaCakes118.exe	31
PID 536 wrote to memory of 2896	536	d8b19fefa16286cf8464028f714fe360_JaffaCakes118.exe	31
PID 536 wrote to memory of 2896	536	d8b19fefa16286cf8464028f714fe360_JaffaCakes118.exe	31
PID 536 wrote to memory of 2896	536	d8b19fefa16286cf8464028f714fe360_JaffaCakes118.exe	31
PID 536 wrote to memory of 2896	536	d8b19fefa16286cf8464028f714fe360_JaffaCakes118.exe	31
PID 536 wrote to memory of 2896	536	d8b19fefa16286cf8464028f714fe360_JaffaCakes118.exe	31
PID 536 wrote to memory of 2896	536	d8b19fefa16286cf8464028f714fe360_JaffaCakes118.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\d8b19fefa16286cf8464028f714fe360_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d8b19fefa16286cf8464028f714fe360_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:536
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v2.0.50727\\\\RegAsm.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:2896

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

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Downloads

memory/536-0-0x0000000002690000-0x0000000002722000-memory.dmp

Filesize
584KB

Download
memory/536-1-0x0000000003FA0000-0x0000000004032000-memory.dmp

Filesize
584KB

Download
memory/2896-2-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2896-6-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2896-4-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2896-7-0x0000000073C12000-0x0000000073C14000-memory.dmp

Filesize
8KB

Download
memory/2896-8-0x0000000073C12000-0x0000000073C14000-memory.dmp

Filesize
8KB

Download

Analysis

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