agenttesla | 380470a60bdf73b853c21349ec451ac6bbe81efc428b45bef121ca7a09d8c329

General

Target

cd01501ae0207eb6f1dba4954ef910f8_JaffaCakes118.exe
Size

443KB
MD5

cd01501ae0207eb6f1dba4954ef910f8
SHA1

9deb02c62c56b9194f0a57f9252c5ab01f0f8277
SHA256

380470a60bdf73b853c21349ec451ac6bbe81efc428b45bef121ca7a09d8c329
SHA512

3319992ff4587681dae9187f00e01072b3b6d95665d354ff67f8e694409d73b154f728cdae6b17aea87fad4f0b97b3c5a413fa71a1c1a228f2d87195e407eb30
SSDEEP

12288:F/Z8EdJgU6r5wjoRIptYychT6NlFVvTka:9WWJxoRJoP/vTka

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
webmail.webexcels.com
Port:
587
Username:
[email protected]
Password:
WEBXL123$$$

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral2/memory/784-5-0x0000000000400000-0x000000000044C000-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-1-5-21-355097885-2402257403-2971294179-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cd01501ae0207eb6f1dba4954ef910f8_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cd01501ae0207eb6f1dba4954ef910f8_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cd01501ae0207eb6f1dba4954ef910f8_JaffaCakes118.exe

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-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSBUILDS = "C:\\Users\\Admin\\AppData\\Roaming\\MSBUILDS\\MSBUILDS.exe"	cd01501ae0207eb6f1dba4954ef910f8_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2728 set thread context of 784	2728	cd01501ae0207eb6f1dba4954ef910f8_JaffaCakes118.exe	98

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	cd01501ae0207eb6f1dba4954ef910f8_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cd01501ae0207eb6f1dba4954ef910f8_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
784	cd01501ae0207eb6f1dba4954ef910f8_JaffaCakes118.exe
784	cd01501ae0207eb6f1dba4954ef910f8_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	784	cd01501ae0207eb6f1dba4954ef910f8_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
784	cd01501ae0207eb6f1dba4954ef910f8_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2728 wrote to memory of 784	2728	cd01501ae0207eb6f1dba4954ef910f8_JaffaCakes118.exe	98
PID 2728 wrote to memory of 784	2728	cd01501ae0207eb6f1dba4954ef910f8_JaffaCakes118.exe	98
PID 2728 wrote to memory of 784	2728	cd01501ae0207eb6f1dba4954ef910f8_JaffaCakes118.exe	98
PID 2728 wrote to memory of 784	2728	cd01501ae0207eb6f1dba4954ef910f8_JaffaCakes118.exe	98
PID 2728 wrote to memory of 784	2728	cd01501ae0207eb6f1dba4954ef910f8_JaffaCakes118.exe	98
PID 2728 wrote to memory of 784	2728	cd01501ae0207eb6f1dba4954ef910f8_JaffaCakes118.exe	98
PID 2728 wrote to memory of 784	2728	cd01501ae0207eb6f1dba4954ef910f8_JaffaCakes118.exe	98
PID 2728 wrote to memory of 784	2728	cd01501ae0207eb6f1dba4954ef910f8_JaffaCakes118.exe	98

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cd01501ae0207eb6f1dba4954ef910f8_JaffaCakes118.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cd01501ae0207eb6f1dba4954ef910f8_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\cd01501ae0207eb6f1dba4954ef910f8_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cd01501ae0207eb6f1dba4954ef910f8_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2728
- C:\Users\Admin\AppData\Local\Temp\cd01501ae0207eb6f1dba4954ef910f8_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\cd01501ae0207eb6f1dba4954ef910f8_JaffaCakes118.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:784

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

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/784-5-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/784-7-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/784-9-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/784-12-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/784-13-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/2728-0-0x0000000074E42000-0x0000000074E43000-memory.dmp

Filesize
4KB

Download
memory/2728-1-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/2728-2-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/2728-3-0x0000000074E42000-0x0000000074E43000-memory.dmp

Filesize
4KB

Download
memory/2728-4-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/2728-8-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads