agenttesla | cbf86dd376f5333537f8aa84a0942a077b137153595467095c9efefe760455a3

General

Target

f9fec0800e972de6728cd47c067097a5_JaffaCakes118.exe
Size

323KB
MD5

f9fec0800e972de6728cd47c067097a5
SHA1

7c071b06729bb85313b426ae6c413aa612bc029a
SHA256

cbf86dd376f5333537f8aa84a0942a077b137153595467095c9efefe760455a3
SHA512

63b23fffdd134fe33c2093144d8c03c02134eccc7d38fb5d18ff43968fc615d1327acc72f386d4d0d429cc6d5dcc9e7a2ab090bffb73398e3581a3159b6c965e
SSDEEP

6144:tvQYFGykEeF6I0hPWYCc858ugFD22uANEIJ3+0lQfz53Z5ESODG:tvQYF9LekI0dWYE8PNPJu0lQfySODG

Score

10^/10

agenttesla collection discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot1334760528:AAHtOjljA8uTRBJyhlaErCaySb44BZudKyM/sendDocument

Signatures

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

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "\"C:\\Users\\Admin\\AppData\\Roaming\\8pYqf83zGYj7F8V3\\SgXBnNvdbimG.exe\",explorer.exe"	f9fec0800e972de6728cd47c067097a5_JaffaCakes118.exe

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral2/memory/2720-7-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

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 3 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

Credentials from Web Browsers
T1555.003

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	f9fec0800e972de6728cd47c067097a5_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	f9fec0800e972de6728cd47c067097a5_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f9fec0800e972de6728cd47c067097a5_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2512 set thread context of 2720	2512	f9fec0800e972de6728cd47c067097a5_JaffaCakes118.exe	86

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	f9fec0800e972de6728cd47c067097a5_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f9fec0800e972de6728cd47c067097a5_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2512	f9fec0800e972de6728cd47c067097a5_JaffaCakes118.exe
2512	f9fec0800e972de6728cd47c067097a5_JaffaCakes118.exe
2720	f9fec0800e972de6728cd47c067097a5_JaffaCakes118.exe
2720	f9fec0800e972de6728cd47c067097a5_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2512	f9fec0800e972de6728cd47c067097a5_JaffaCakes118.exe
Token: SeDebugPrivilege	2512	f9fec0800e972de6728cd47c067097a5_JaffaCakes118.exe
Token: SeDebugPrivilege	2720	f9fec0800e972de6728cd47c067097a5_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2512 wrote to memory of 2720	2512	f9fec0800e972de6728cd47c067097a5_JaffaCakes118.exe	86
PID 2512 wrote to memory of 2720	2512	f9fec0800e972de6728cd47c067097a5_JaffaCakes118.exe	86
PID 2512 wrote to memory of 2720	2512	f9fec0800e972de6728cd47c067097a5_JaffaCakes118.exe	86
PID 2512 wrote to memory of 2720	2512	f9fec0800e972de6728cd47c067097a5_JaffaCakes118.exe	86
PID 2512 wrote to memory of 2720	2512	f9fec0800e972de6728cd47c067097a5_JaffaCakes118.exe	86
PID 2512 wrote to memory of 2720	2512	f9fec0800e972de6728cd47c067097a5_JaffaCakes118.exe	86
PID 2512 wrote to memory of 2720	2512	f9fec0800e972de6728cd47c067097a5_JaffaCakes118.exe	86
PID 2512 wrote to memory of 2720	2512	f9fec0800e972de6728cd47c067097a5_JaffaCakes118.exe	86

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	f9fec0800e972de6728cd47c067097a5_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	f9fec0800e972de6728cd47c067097a5_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\f9fec0800e972de6728cd47c067097a5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f9fec0800e972de6728cd47c067097a5_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2512
- C:\Users\Admin\AppData\Local\Temp\f9fec0800e972de6728cd47c067097a5_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\f9fec0800e972de6728cd47c067097a5_JaffaCakes118.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2720

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

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/2512-12-0x0000000074B30000-0x00000000750E1000-memory.dmp

Filesize
5.7MB

Download
memory/2512-1-0x0000000074B30000-0x00000000750E1000-memory.dmp

Filesize
5.7MB

Download
memory/2512-2-0x0000000074B30000-0x00000000750E1000-memory.dmp

Filesize
5.7MB

Download
memory/2512-4-0x0000000074B30000-0x00000000750E1000-memory.dmp

Filesize
5.7MB

Download
memory/2512-3-0x0000000074B32000-0x0000000074B33000-memory.dmp

Filesize
4KB

Download
memory/2512-0-0x0000000074B32000-0x0000000074B33000-memory.dmp

Filesize
4KB

Download
memory/2720-10-0x0000000074B30000-0x00000000750E1000-memory.dmp

Filesize
5.7MB

Download
memory/2720-9-0x0000000074B30000-0x00000000750E1000-memory.dmp

Filesize
5.7MB

Download
memory/2720-13-0x0000000074B30000-0x00000000750E1000-memory.dmp

Filesize
5.7MB

Download
memory/2720-7-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2720-11-0x0000000074B30000-0x00000000750E1000-memory.dmp

Filesize
5.7MB

Download
memory/2720-14-0x0000000074B30000-0x00000000750E1000-memory.dmp

Filesize
5.7MB

Download
memory/2720-15-0x0000000074B30000-0x00000000750E1000-memory.dmp

Filesize
5.7MB

Download
memory/2720-16-0x0000000074B30000-0x00000000750E1000-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