agenttesla | b819ead51a3dede0ab5459c5972a08be104ed231c745ed4e0e5017da81527462

General

Target
a1e15c0e4490e83beed5494ad8047f21_JaffaCakes118.exe
Size 584KB
Sample240612-xpc12swdma
SHA256 b819ead51a3dede0ab5459c5972a08be104ed231c745ed4e0e5017da81527462
MD5 a1e15c0e4490e83beed5494ad8047f21
SHA1 1c9748347151d46b103e974f3bc02b16dbb3372c
SHA512 3a0380e731477acb8ab21768f949270076fc292e53c60c0d747141127394a37ff5682e53803b8e6863f7186ebc9622173767fa68d018aed179beeef97a595877
SSDEEP 12288:pKtz6TCAYjjrVQdl9DKlTLhein9b+EKLce0plZ/:gsT/YjjSDM9Sce0pD
MD5 SHA1 SHA512 SSDEEP

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 1 IoCs

resource	yara_rule
behavioral2/memory/1480-31-0x0000000000400000-0x0000000000494000-memory.dmp	family_agenttesla

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	a1e15c0e4490e83beed5494ad8047f21_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
1184	traurighedsmaakrybenestidlsna.exe
1480	traurighedsmaakrybenestidlsna.exe

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-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	traurighedsmaakrybenestidlsna.exe
Key opened	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	traurighedsmaakrybenestidlsna.exe
Key opened	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	traurighedsmaakrybenestidlsna.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\programadministrationernesiape = "wscript \"C:\\Users\\Admin\\remarkablekernerelationerneskl\\traurighedsmaakrybenestidlsna.vbs\""	traurighedsmaakrybenestidlsna.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MyApp = "C:\\Users\\Admin\\AppData\\Roaming\\MyApp\\MyApp.exe"	traurighedsmaakrybenestidlsna.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\win.ini	a1e15c0e4490e83beed5494ad8047f21_JaffaCakes118.exe
File opened for modification	C:\Windows\win.ini	a1e15c0e4490e83beed5494ad8047f21_JaffaCakes118.exe
File opened for modification	C:\Windows\win.ini	traurighedsmaakrybenestidlsna.exe
File opened for modification	C:\Windows\win.ini	traurighedsmaakrybenestidlsna.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1480	traurighedsmaakrybenestidlsna.exe
1480	traurighedsmaakrybenestidlsna.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1480	traurighedsmaakrybenestidlsna.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4212	a1e15c0e4490e83beed5494ad8047f21_JaffaCakes118.exe
3608	a1e15c0e4490e83beed5494ad8047f21_JaffaCakes118.exe
1184	traurighedsmaakrybenestidlsna.exe
1480	traurighedsmaakrybenestidlsna.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4212 wrote to memory of 3608	4212	a1e15c0e4490e83beed5494ad8047f21_JaffaCakes118.exe	85
PID 4212 wrote to memory of 3608	4212	a1e15c0e4490e83beed5494ad8047f21_JaffaCakes118.exe	85
PID 4212 wrote to memory of 3608	4212	a1e15c0e4490e83beed5494ad8047f21_JaffaCakes118.exe	85
PID 3608 wrote to memory of 1184	3608	a1e15c0e4490e83beed5494ad8047f21_JaffaCakes118.exe	86
PID 3608 wrote to memory of 1184	3608	a1e15c0e4490e83beed5494ad8047f21_JaffaCakes118.exe	86
PID 3608 wrote to memory of 1184	3608	a1e15c0e4490e83beed5494ad8047f21_JaffaCakes118.exe	86
PID 1184 wrote to memory of 1480	1184	traurighedsmaakrybenestidlsna.exe	87
PID 1184 wrote to memory of 1480	1184	traurighedsmaakrybenestidlsna.exe	87
PID 1184 wrote to memory of 1480	1184	traurighedsmaakrybenestidlsna.exe	87

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	traurighedsmaakrybenestidlsna.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	traurighedsmaakrybenestidlsna.exe

C:\Users\Admin\AppData\Local\Temp\a1e15c0e4490e83beed5494ad8047f21_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a1e15c0e4490e83beed5494ad8047f21_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4212
- C:\Users\Admin\AppData\Local\Temp\a1e15c0e4490e83beed5494ad8047f21_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\a1e15c0e4490e83beed5494ad8047f21_JaffaCakes118.exe"
  2⤵
  - Checks computer location settings
  - Drops file in Windows directory
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3608
- - C:\Users\Admin\remarkablekernerelationerneskl\traurighedsmaakrybenestidlsna.exe
    "C:\Users\Admin\remarkablekernerelationerneskl\traurighedsmaakrybenestidlsna.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Drops file in Windows directory
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1184
  - - C:\Users\Admin\remarkablekernerelationerneskl\traurighedsmaakrybenestidlsna.exe
      "C:\Users\Admin\remarkablekernerelationerneskl\traurighedsmaakrybenestidlsna.exe"
      4⤵
      Executes dropped EXE
      Accesses Microsoft Outlook profiles
      Adds Run key to start application
      Drops file in Windows directory
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      outlook_office_path
      outlook_win_path
      PID:1480

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

traurighedsmaakrybenestidlsna.exe

Path C:\Users\Admin\remarkablekernerelationerneskl\traurighedsmaakrybenestidlsna.exe
Size 584KB
SHA256 b819ead51a3dede0ab5459c5972a08be104ed231c745ed4e0e5017da81527462
MD5 a1e15c0e4490e83beed5494ad8047f21
SHA1 1c9748347151d46b103e974f3bc02b16dbb3372c
SHA512 3a0380e731477acb8ab21768f949270076fc292e53c60c0d747141127394a37ff5682e53803b8e6863f7186ebc9622173767fa68d018aed179beeef97a595877
SSDEEP 12288:pKtz6TCAYjjrVQdl9DKlTLhein9b+EKLce0plZ/:gsT/YjjSDM9Sce0pD
MD5 SHA1 SHA512 SSDEEP

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win.ini

Path C:\Windows\win.ini
Size 123B
SHA256 6e2b70dfccabf3cc651545676a3a566c9cfae03f15f772886646abce1da35b46
MD5 6bf517432f65eb7f0d18d574bf14124c
SHA1 5b9f37c1dd1318ebbec3bd2f07c109eb9d22c727
SHA512 7b0cb8c20034585ec8bf4b45eda5eda5993a56e24931a7426dc5a9f081ec1f82545f3e26a48a4df885c8691fc6e8026d0808aebe3cc3358ba85ddca08ac4cb06
MD5 SHA1 SHA512

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memory/1480-32-0x0000000000690000-0x0000000000693000-memory.dmp

Download

memory/1480-31-0x0000000000400000-0x0000000000494000-memory.dmp

Download

memory/3608-9-0x0000000002120000-0x0000000002123000-memory.dmp

Download

memory/4212-3-0x00000000021B0000-0x00000000021B3000-memory.dmp

Download

memory/4212-4-0x0000000077BC1000-0x0000000077CE1000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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