agenttesla | c900219833859c8fb3db0f371ab865802da2a1f191ad9aa36db08cb0852c0d70

General

Target

e08f278deb7ade5690317b7d1f6cf3ac_JaffaCakes118.exe
Size

1.2MB
MD5

e08f278deb7ade5690317b7d1f6cf3ac
SHA1

eb6deff66b88670a28dc659bc2d108b2b0656982
SHA256

c900219833859c8fb3db0f371ab865802da2a1f191ad9aa36db08cb0852c0d70
SHA512

f26b5661f27a89255efaa6821498ea1513126dd32299c1de6ce191b927dcb97939f43960c4fbf16fda95f7a088012cf094dbed656ca73ace5d93f35c9aca6b58
SSDEEP

24576:BAHnh+eWsN3skA4RV1Hom2KXMmHaKWnyHFGgzEHbNhGd64A5:Yh+ZkldoPK8YazW0gzEHbid67

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence spyware stealer trojan

Malware Config

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/2192-3-0x0000000000090000-0x00000000000EA000-memory.dmp	family_agenttesla
behavioral1/memory/2192-10-0x0000000000090000-0x00000000000EA000-memory.dmp	family_agenttesla
behavioral1/memory/2192-9-0x0000000000090000-0x00000000000EA000-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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Office\15.0\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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\MyApp = "C:\\Users\\Admin\\AppData\\Roaming\\MyApp\\MyApp.exe"	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2120 set thread context of 2192	2120	e08f278deb7ade5690317b7d1f6cf3ac_JaffaCakes118.exe	30

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	e08f278deb7ade5690317b7d1f6cf3ac_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2192	RegAsm.exe
2192	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2192	RegAsm.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2120	e08f278deb7ade5690317b7d1f6cf3ac_JaffaCakes118.exe
2120	e08f278deb7ade5690317b7d1f6cf3ac_JaffaCakes118.exe
2120	e08f278deb7ade5690317b7d1f6cf3ac_JaffaCakes118.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
2120	e08f278deb7ade5690317b7d1f6cf3ac_JaffaCakes118.exe
2120	e08f278deb7ade5690317b7d1f6cf3ac_JaffaCakes118.exe
2120	e08f278deb7ade5690317b7d1f6cf3ac_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2192	RegAsm.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2120 wrote to memory of 2192	2120	e08f278deb7ade5690317b7d1f6cf3ac_JaffaCakes118.exe	30
PID 2120 wrote to memory of 2192	2120	e08f278deb7ade5690317b7d1f6cf3ac_JaffaCakes118.exe	30
PID 2120 wrote to memory of 2192	2120	e08f278deb7ade5690317b7d1f6cf3ac_JaffaCakes118.exe	30
PID 2120 wrote to memory of 2192	2120	e08f278deb7ade5690317b7d1f6cf3ac_JaffaCakes118.exe	30
PID 2120 wrote to memory of 2192	2120	e08f278deb7ade5690317b7d1f6cf3ac_JaffaCakes118.exe	30
PID 2120 wrote to memory of 2192	2120	e08f278deb7ade5690317b7d1f6cf3ac_JaffaCakes118.exe	30
PID 2120 wrote to memory of 2192	2120	e08f278deb7ade5690317b7d1f6cf3ac_JaffaCakes118.exe	30
PID 2120 wrote to memory of 2192	2120	e08f278deb7ade5690317b7d1f6cf3ac_JaffaCakes118.exe	30
PID 2120 wrote to memory of 2192	2120	e08f278deb7ade5690317b7d1f6cf3ac_JaffaCakes118.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\e08f278deb7ade5690317b7d1f6cf3ac_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e08f278deb7ade5690317b7d1f6cf3ac_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:2120
- 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:2192

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/2120-0-0x0000000000120000-0x0000000000121000-memory.dmp

Filesize
4KB

Download
memory/2192-1-0x0000000000090000-0x00000000000EA000-memory.dmp

Filesize
360KB

Download
memory/2192-3-0x0000000000090000-0x00000000000EA000-memory.dmp

Filesize
360KB

Download
memory/2192-10-0x0000000000090000-0x00000000000EA000-memory.dmp

Filesize
360KB

Download
memory/2192-9-0x0000000000090000-0x00000000000EA000-memory.dmp

Filesize
360KB

Download
memory/2192-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2192-11-0x0000000073C52000-0x0000000073C54000-memory.dmp

Filesize
8KB

Download
memory/2192-12-0x0000000073C52000-0x0000000073C54000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads