agenttesla | 7e26be5e527af444b9783ea11309478ed6a57c7f08c037a92194962a8445a023

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
08-09-2024 02:26

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General

Target

d3527424cb2037c6bd3102834f69d482_JaffaCakes118.exe
Size

1.4MB
MD5

d3527424cb2037c6bd3102834f69d482
SHA1

f8c9e2ae04e6c181b055e80086a57c307fbf150d
SHA256

7e26be5e527af444b9783ea11309478ed6a57c7f08c037a92194962a8445a023
SHA512

cf716f4398339c2e56b71837c7415cbecf39431cdb3ce4cf05db3dce8cfebaf8e6fdfed0288a97c8211bd5f6cb6db276f7b378d66bba46db296a438101fb9e66
SSDEEP

24576:iAHnh+eWsN3skA4RV1Hom2KXMmHaWohXxQMoK58uqjfxpvwz/PD2w/5:lh+ZkldoPK8YaWAxVe9fxpvwTX

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.automovelclube.org.br
Port:
587
Username:
[email protected]
Password:
automovelclube

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/5072-2-0x0000000000400000-0x000000000044E000-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-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.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-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\LkCUFPYV = "C:\\Users\\Admin\\AppData\\Roaming\\UhqzVro\\BQAOf.exe"	RegAsm.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
32	api.ipify.org
33	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5036 set thread context of 5072	5036	d3527424cb2037c6bd3102834f69d482_JaffaCakes118.exe	88

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	d3527424cb2037c6bd3102834f69d482_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5072	RegAsm.exe
5072	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5072	RegAsm.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
5036	d3527424cb2037c6bd3102834f69d482_JaffaCakes118.exe
5036	d3527424cb2037c6bd3102834f69d482_JaffaCakes118.exe
5036	d3527424cb2037c6bd3102834f69d482_JaffaCakes118.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
5036	d3527424cb2037c6bd3102834f69d482_JaffaCakes118.exe
5036	d3527424cb2037c6bd3102834f69d482_JaffaCakes118.exe
5036	d3527424cb2037c6bd3102834f69d482_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5072	RegAsm.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 5036 wrote to memory of 5072	5036	d3527424cb2037c6bd3102834f69d482_JaffaCakes118.exe	88
PID 5036 wrote to memory of 5072	5036	d3527424cb2037c6bd3102834f69d482_JaffaCakes118.exe	88
PID 5036 wrote to memory of 5072	5036	d3527424cb2037c6bd3102834f69d482_JaffaCakes118.exe	88
PID 5036 wrote to memory of 5072	5036	d3527424cb2037c6bd3102834f69d482_JaffaCakes118.exe	88
PID 5036 wrote to memory of 5072	5036	d3527424cb2037c6bd3102834f69d482_JaffaCakes118.exe	88

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\d3527424cb2037c6bd3102834f69d482_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d3527424cb2037c6bd3102834f69d482_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:5036
- 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
  - 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:5072

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

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/5036-0-0x0000000001EB0000-0x0000000001EF7000-memory.dmp

Filesize
284KB

Download
memory/5036-1-0x0000000000DA0000-0x0000000000DA1000-memory.dmp

Filesize
4KB

Download
memory/5072-2-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/5072-7-0x0000000073E52000-0x0000000073E53000-memory.dmp

Filesize
4KB

Download
memory/5072-8-0x0000000073E50000-0x0000000074401000-memory.dmp

Filesize
5.7MB

Download
memory/5072-9-0x0000000073E50000-0x0000000074401000-memory.dmp

Filesize
5.7MB

Download
memory/5072-10-0x0000000073E52000-0x0000000073E53000-memory.dmp

Filesize
4KB

Download
memory/5072-11-0x0000000073E50000-0x0000000074401000-memory.dmp

Filesize
5.7MB

Download