agenttesla | 54bf3d43081df1fe54973306d62bfe19fb27278c2248431095d1e953870dd09b

General

Target

de848d7a8fc498435755e7fd5bc0fc63_JaffaCakes118.exe
Size

594KB
MD5

de848d7a8fc498435755e7fd5bc0fc63
SHA1

53e34f932a122265ea44b51449599d4417c18d64
SHA256

54bf3d43081df1fe54973306d62bfe19fb27278c2248431095d1e953870dd09b
SHA512

bce48b926aecee76874f5d9f720b563f643f74af0ba8e0d6408092dbb0bc42e31cfd775a625652b1b701ac149ae056da0bdaaef57f726a034e98e37a67b9c5f6
SSDEEP

12288:8hATkOSjH7RS4p68WQyViGgaID4wBvRQao:aCS44dNyVitNvRQ

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
78.142.19.101
Port:
587
Username:
[email protected]
Password:
8txksCN56

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/2808-13-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/2808-11-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/2808-9-0x0000000000400000-0x000000000044C000-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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1620 set thread context of 2808	1620	de848d7a8fc498435755e7fd5bc0fc63_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	de848d7a8fc498435755e7fd5bc0fc63_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2808	RegAsm.exe
2808	RegAsm.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1620	de848d7a8fc498435755e7fd5bc0fc63_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2808	RegAsm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2808	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1620 wrote to memory of 2808	1620	de848d7a8fc498435755e7fd5bc0fc63_JaffaCakes118.exe	30
PID 1620 wrote to memory of 2808	1620	de848d7a8fc498435755e7fd5bc0fc63_JaffaCakes118.exe	30
PID 1620 wrote to memory of 2808	1620	de848d7a8fc498435755e7fd5bc0fc63_JaffaCakes118.exe	30
PID 1620 wrote to memory of 2808	1620	de848d7a8fc498435755e7fd5bc0fc63_JaffaCakes118.exe	30
PID 1620 wrote to memory of 2808	1620	de848d7a8fc498435755e7fd5bc0fc63_JaffaCakes118.exe	30
PID 1620 wrote to memory of 2808	1620	de848d7a8fc498435755e7fd5bc0fc63_JaffaCakes118.exe	30
PID 1620 wrote to memory of 2808	1620	de848d7a8fc498435755e7fd5bc0fc63_JaffaCakes118.exe	30
PID 1620 wrote to memory of 2808	1620	de848d7a8fc498435755e7fd5bc0fc63_JaffaCakes118.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\de848d7a8fc498435755e7fd5bc0fc63_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\de848d7a8fc498435755e7fd5bc0fc63_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1620
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\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:2808

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

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Downloads

memory/1620-0-0x000000007495E000-0x000000007495F000-memory.dmp

Filesize
4KB

Download
memory/1620-1-0x0000000000260000-0x00000000002FA000-memory.dmp

Filesize
616KB

Download
memory/1620-2-0x0000000074950000-0x000000007503E000-memory.dmp

Filesize
6.9MB

Download
memory/1620-3-0x0000000000420000-0x0000000000428000-memory.dmp

Filesize
32KB

Download
memory/1620-4-0x0000000004350000-0x00000000043A4000-memory.dmp

Filesize
336KB

Download
memory/1620-6-0x000000007495E000-0x000000007495F000-memory.dmp

Filesize
4KB

Download
memory/1620-7-0x0000000074950000-0x000000007503E000-memory.dmp

Filesize
6.9MB

Download
memory/1620-8-0x0000000074950000-0x000000007503E000-memory.dmp

Filesize
6.9MB

Download
memory/1620-14-0x0000000074950000-0x000000007503E000-memory.dmp

Filesize
6.9MB

Download
memory/2808-13-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2808-11-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2808-9-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

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