agenttesla | 6aff16913982445a392df4715e180c3d210ba2b4574c2bfffeb68c4f96a252e4

General

Target

7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe
Size

595KB
MD5

7b3b71e4e4b95a12b3037ddb0b83e0d2
SHA1

a9117b3384ffec76eececa0fb42960bcfe2c486a
SHA256

6aff16913982445a392df4715e180c3d210ba2b4574c2bfffeb68c4f96a252e4
SHA512

522987d151e6a524b1c6dd956d3012fca89e3969155b8683138c323c4e52c73721755ad1cc5f63bfff94fcb79cf16c99049749ca7e4f574b9fb86a9762eee432
SSDEEP

12288:6Mvkq4KPNYB7lAY0jU8CJ/ysWQhSrhQFn8QPXx2El:6MvkUlYydK0s0rhQFnHPXA

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

AgentTesla payload 19 IoCs

resource	yara_rule
behavioral1/memory/2548-13-0x0000000000400000-0x0000000000460000-memory.dmp	family_agenttesla
behavioral1/memory/2548-17-0x0000000000400000-0x0000000000460000-memory.dmp	family_agenttesla
behavioral1/memory/2548-15-0x0000000000400000-0x0000000000460000-memory.dmp	family_agenttesla
behavioral1/memory/2548-10-0x0000000000400000-0x0000000000460000-memory.dmp	family_agenttesla
behavioral1/memory/2548-9-0x0000000000400000-0x0000000000460000-memory.dmp	family_agenttesla
behavioral1/memory/2548-36-0x0000000000400000-0x0000000000460000-memory.dmp	family_agenttesla
behavioral1/memory/2548-39-0x0000000000400000-0x0000000000460000-memory.dmp	family_agenttesla
behavioral1/memory/2548-37-0x0000000000400000-0x0000000000460000-memory.dmp	family_agenttesla
behavioral1/memory/2548-34-0x0000000000400000-0x0000000000460000-memory.dmp	family_agenttesla
behavioral1/memory/2548-31-0x0000000000400000-0x0000000000460000-memory.dmp	family_agenttesla
behavioral1/memory/2548-30-0x0000000000400000-0x0000000000460000-memory.dmp	family_agenttesla
behavioral1/memory/2548-28-0x0000000000400000-0x0000000000460000-memory.dmp	family_agenttesla
behavioral1/memory/2548-26-0x0000000000400000-0x0000000000460000-memory.dmp	family_agenttesla
behavioral1/memory/2548-25-0x0000000000400000-0x0000000000460000-memory.dmp	family_agenttesla
behavioral1/memory/2548-24-0x0000000000400000-0x0000000000460000-memory.dmp	family_agenttesla
behavioral1/memory/2548-23-0x0000000000400000-0x0000000000460000-memory.dmp	family_agenttesla
behavioral1/memory/2548-22-0x0000000000400000-0x0000000000460000-memory.dmp	family_agenttesla
behavioral1/memory/2548-21-0x0000000000400000-0x0000000000460000-memory.dmp	family_agenttesla
behavioral1/memory/2548-20-0x0000000000400000-0x0000000000460000-memory.dmp	family_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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\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-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\MyApp = "C:\\Users\\Admin\\AppData\\Roaming\\MyApp\\MyApp.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.

flow	ioc
4	checkip.amazonaws.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3016 set thread context of 2548	3016	7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe	30

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3016	7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe
3016	7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe
2548	RegAsm.exe
2548	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3016	7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe
Token: SeDebugPrivilege	2548	RegAsm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2548	RegAsm.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3016 wrote to memory of 2548	3016	7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe	30
PID 3016 wrote to memory of 2548	3016	7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe	30
PID 3016 wrote to memory of 2548	3016	7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe	30
PID 3016 wrote to memory of 2548	3016	7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe	30
PID 3016 wrote to memory of 2548	3016	7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe	30
PID 3016 wrote to memory of 2548	3016	7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe	30
PID 3016 wrote to memory of 2548	3016	7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe	30
PID 3016 wrote to memory of 2548	3016	7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe	30
PID 3016 wrote to memory of 2548	3016	7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe	30
PID 3016 wrote to memory of 2548	3016	7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe	30
PID 3016 wrote to memory of 2548	3016	7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe	30
PID 3016 wrote to memory of 2548	3016	7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3016
- 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:2548

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2548-39-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2548-24-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2548-37-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2548-40-0x0000000074170000-0x000000007471B000-memory.dmp

Filesize
5.7MB

Download
memory/2548-20-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2548-5-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2548-13-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2548-17-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2548-15-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2548-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2548-10-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2548-9-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2548-7-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2548-36-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2548-42-0x0000000074170000-0x000000007471B000-memory.dmp

Filesize
5.7MB

Download
memory/2548-21-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2548-34-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2548-31-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2548-30-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2548-28-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2548-26-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2548-25-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2548-22-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2548-23-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/3016-1-0x0000000074170000-0x000000007471B000-memory.dmp

Filesize
5.7MB

Download
memory/3016-2-0x0000000074170000-0x000000007471B000-memory.dmp

Filesize
5.7MB

Download
memory/3016-4-0x0000000074170000-0x000000007471B000-memory.dmp

Filesize
5.7MB

Download
memory/3016-18-0x0000000074170000-0x000000007471B000-memory.dmp

Filesize
5.7MB

Download
memory/3016-3-0x0000000074170000-0x000000007471B000-memory.dmp

Filesize
5.7MB

Download
memory/3016-0-0x0000000074171000-0x0000000074172000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads