agenttesla | 962c48baefe8995af1ccc8a4e3d45e460eb9889076a945dcac7f3a438a9644db

General

Target

636588721d91d2d8846d7acbee2993e9_JaffaCakes118.exe
Size

918KB
MD5

636588721d91d2d8846d7acbee2993e9
SHA1

73ef1d0d5e9dabcbebd365c242c7f864d3e06ae5
SHA256

962c48baefe8995af1ccc8a4e3d45e460eb9889076a945dcac7f3a438a9644db
SHA512

58d3f8591eedf9780fed1e2a52ec8d15c3f310cbb38a18450f9362291aad5f55f810dd9f477a1121b62478af4c340c727422784351fcc114ab0d9eb5c8458b43
SSDEEP

24576:GWOrAw+ELFLmRFHeNFy8pSwSPXB48eEM4o/Nti2/q1:GWOrAw+ELFLmRUNFy8pSwSPXB48er4oS

Score

10^/10

agenttesla collection 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
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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\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

Processes:

RegAsm.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\MyOtApp = "C:\\Users\\Admin\\AppData\\Roaming\\MyOtApp\\MyOtApp.exe"	RegAsm.exe

Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

4 checkip.dyndns.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

636588721d91d2d8846d7acbee2993e9_JaffaCakes118.exe

description pid process target process

PID 2004 set thread context of 1880 2004 636588721d91d2d8846d7acbee2993e9_JaffaCakes118.exe RegAsm.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

636588721d91d2d8846d7acbee2993e9_JaffaCakes118.exeRegAsm.exe

pid process

2004 636588721d91d2d8846d7acbee2993e9_JaffaCakes118.exe
2004 636588721d91d2d8846d7acbee2993e9_JaffaCakes118.exe
1880 RegAsm.exe
1880 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

636588721d91d2d8846d7acbee2993e9_JaffaCakes118.exeRegAsm.exe

description pid process

Token: SeDebugPrivilege 2004 636588721d91d2d8846d7acbee2993e9_JaffaCakes118.exe
Token: SeDebugPrivilege 1880 RegAsm.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegAsm.exe

pid process

1880 RegAsm.exe

flow	ioc
4	checkip.dyndns.org

description	pid	process	target process
PID 2004 set thread context of 1880	2004	636588721d91d2d8846d7acbee2993e9_JaffaCakes118.exe	RegAsm.exe

pid	process
2004	636588721d91d2d8846d7acbee2993e9_JaffaCakes118.exe
2004	636588721d91d2d8846d7acbee2993e9_JaffaCakes118.exe
1880	RegAsm.exe
1880	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	2004	636588721d91d2d8846d7acbee2993e9_JaffaCakes118.exe
Token: SeDebugPrivilege	1880	RegAsm.exe

pid	process
1880	RegAsm.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

636588721d91d2d8846d7acbee2993e9_JaffaCakes118.exe

description	pid	process	target process
PID 2004 wrote to memory of 1880	2004	636588721d91d2d8846d7acbee2993e9_JaffaCakes118.exe	RegAsm.exe
PID 2004 wrote to memory of 1880	2004	636588721d91d2d8846d7acbee2993e9_JaffaCakes118.exe	RegAsm.exe
PID 2004 wrote to memory of 1880	2004	636588721d91d2d8846d7acbee2993e9_JaffaCakes118.exe	RegAsm.exe
PID 2004 wrote to memory of 1880	2004	636588721d91d2d8846d7acbee2993e9_JaffaCakes118.exe	RegAsm.exe
PID 2004 wrote to memory of 1880	2004	636588721d91d2d8846d7acbee2993e9_JaffaCakes118.exe	RegAsm.exe
PID 2004 wrote to memory of 1880	2004	636588721d91d2d8846d7acbee2993e9_JaffaCakes118.exe	RegAsm.exe
PID 2004 wrote to memory of 1880	2004	636588721d91d2d8846d7acbee2993e9_JaffaCakes118.exe	RegAsm.exe
PID 2004 wrote to memory of 1880	2004	636588721d91d2d8846d7acbee2993e9_JaffaCakes118.exe	RegAsm.exe
PID 2004 wrote to memory of 1880	2004	636588721d91d2d8846d7acbee2993e9_JaffaCakes118.exe	RegAsm.exe
PID 2004 wrote to memory of 1880	2004	636588721d91d2d8846d7acbee2993e9_JaffaCakes118.exe	RegAsm.exe
PID 2004 wrote to memory of 1880	2004	636588721d91d2d8846d7acbee2993e9_JaffaCakes118.exe	RegAsm.exe
PID 2004 wrote to memory of 1880	2004	636588721d91d2d8846d7acbee2993e9_JaffaCakes118.exe	RegAsm.exe

outlook_office_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\636588721d91d2d8846d7acbee2993e9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\636588721d91d2d8846d7acbee2993e9_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2004
- 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
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:1880

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

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1880-7-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1880-6-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1880-20-0x0000000074380000-0x000000007492B000-memory.dmp

Filesize
5.7MB

Download
memory/1880-17-0x0000000074380000-0x000000007492B000-memory.dmp

Filesize
5.7MB

Download
memory/1880-14-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1880-12-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1880-16-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1880-8-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1880-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1880-9-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2004-0-0x00000000745AE000-0x00000000745AF000-memory.dmp

Filesize
4KB

Download
memory/2004-1-0x0000000000B50000-0x0000000000C22000-memory.dmp

Filesize
840KB

Download
memory/2004-5-0x0000000000580000-0x00000000005BA000-memory.dmp

Filesize
232KB

Download
memory/2004-3-0x0000000000510000-0x000000000051C000-memory.dmp

Filesize
48KB

Download
memory/2004-2-0x00000000004C0000-0x0000000000504000-memory.dmp

Filesize
272KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads