agenttesla | 6c3499a9a97ff833ec7ccfa4f1339c7fc3823b0324c1052f81cc75f53881b7c4

General

Target

JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.exe
Size

815KB
MD5

b1b9c4e0a6d375ffb5cee49251a1f9d6
SHA1

8c0bd3f0464c055696b06f7b1d5d57895bbbf3b0
SHA256

6c3499a9a97ff833ec7ccfa4f1339c7fc3823b0324c1052f81cc75f53881b7c4
SHA512

acd915dba3db77e7ba28ac04340f8ff5181019f17e483e87d0cfa6fa1ea29d9becb1ae2724f6445c05ac7b368cf71c683194833d397a625798ee49c2114733da
SSDEEP

12288:ALPA4qRSSdMkuvMNptn0Ud6T3MN3sp85/ukEE6cP6PWj3WPHZ7bnesqJFTPQjn3M:ySvvaW6T36F58cyP6WZnesq0jc

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.vivaldi.net
Port:
587
Username:
[email protected]
Password:
K@maR1-2019Hotelss

Signatures

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

AgentTesla payload 5 IoCs

resource	yara_rule
behavioral1/memory/2720-18-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2720-22-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2720-20-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2720-14-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2720-12-0x0000000000400000-0x000000000043C000-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 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
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\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.exe
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.exe
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\YYtJku = "C:\\Users\\Admin\\AppData\\Roaming\\YYtJku\\YYtJku.exe"	JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2248 set thread context of 2720	2248	JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.exe	31

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	JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2248	JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.exe
2248	JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.exe
2248	JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.exe
2720	JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.exe
2720	JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2720	JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2248	JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.exe
Token: SeDebugPrivilege	2720	JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2248 wrote to memory of 2720	2248	JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.exe	31
PID 2248 wrote to memory of 2720	2248	JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.exe	31
PID 2248 wrote to memory of 2720	2248	JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.exe	31
PID 2248 wrote to memory of 2720	2248	JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.exe	31
PID 2248 wrote to memory of 2720	2248	JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.exe	31
PID 2248 wrote to memory of 2720	2248	JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.exe	31
PID 2248 wrote to memory of 2720	2248	JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.exe	31
PID 2248 wrote to memory of 2720	2248	JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.exe	31
PID 2248 wrote to memory of 2720	2248	JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.exe	31

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	JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.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	JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2248
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b1b9c4e0a6d375ffb5cee49251a1f9d6.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - 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

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2248-0-0x00000000741EE000-0x00000000741EF000-memory.dmp

Filesize
4KB

Download
memory/2248-1-0x0000000000C40000-0x0000000000D12000-memory.dmp

Filesize
840KB

Download
memory/2248-2-0x00000000741E0000-0x00000000748CE000-memory.dmp

Filesize
6.9MB

Download
memory/2248-3-0x0000000000300000-0x0000000000314000-memory.dmp

Filesize
80KB

Download
memory/2248-4-0x00000000741EE000-0x00000000741EF000-memory.dmp

Filesize
4KB

Download
memory/2248-5-0x00000000741E0000-0x00000000748CE000-memory.dmp

Filesize
6.9MB

Download
memory/2248-6-0x0000000005740000-0x00000000057C6000-memory.dmp

Filesize
536KB

Download
memory/2248-7-0x00000000008E0000-0x000000000091C000-memory.dmp

Filesize
240KB

Download
memory/2248-24-0x00000000741E0000-0x00000000748CE000-memory.dmp

Filesize
6.9MB

Download
memory/2720-22-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2720-12-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2720-20-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2720-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2720-8-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2720-23-0x00000000741E0000-0x00000000748CE000-memory.dmp

Filesize
6.9MB

Download
memory/2720-14-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2720-18-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2720-10-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2720-25-0x00000000741E0000-0x00000000748CE000-memory.dmp

Filesize
6.9MB

Download
memory/2720-26-0x00000000741E0000-0x00000000748CE000-memory.dmp

Filesize
6.9MB

Download
memory/2720-27-0x00000000741E0000-0x00000000748CE000-memory.dmp

Filesize
6.9MB

Download
memory/2720-29-0x00000000741E0000-0x00000000748CE000-memory.dmp

Filesize
6.9MB

Download
memory/2720-30-0x00000000741E0000-0x00000000748CE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads