agenttesla | 48fbba6a7af6062b76a92497f90c2c552e65d1f7990b0715747ad1afa15cf057

Analysis

max time kernel
142s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-09-2024 05:18

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General

Target

f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe
Size

462KB
MD5

f7a6f35fa55966b85599002542e6e680
SHA1

164952e1da9ad89bec0fb105ae7712845f4e556b
SHA256

48fbba6a7af6062b76a92497f90c2c552e65d1f7990b0715747ad1afa15cf057
SHA512

f7e5fc1be112f287d2ca937d1e5244d15a334c96bd86e5d50b84f296e111934a4cf20fc440bcdc49e272245ab6d69011e7fdd729e5ccad1a2c41d071e930fb9c
SSDEEP

12288:FMwXwfyKrSZ6Xb5dEzxX3XUXcIWHTo446fHV+G:FMwXwfyKGCDEzxNG6f

Score

10^/10

agenttesla collection credential_access discovery evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.gascuenca.es
Port:
587
Username:
[email protected]
Password:
gasW204@Z7
Email To:
[email protected]

Signatures

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

Modifies Windows Defender Real-time Protection settings 3 TTPs 4 IoCs

evasion trojan

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify Tools

T1562.001

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe

AgentTesla payload 5 IoCs

resource	yara_rule
behavioral1/memory/1276-22-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1276-26-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1276-24-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1276-19-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1276-18-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.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 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

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1640 set thread context of 1276	1640	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe	34

System Location Discovery: System Language Discovery 1 TTPs 3 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	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1788	powershell.exe
1640	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe
1276	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe
1276	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1788	powershell.exe
Token: SeDebugPrivilege	1640	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe
Token: SeDebugPrivilege	1276	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1640 wrote to memory of 1788	1640	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe	31
PID 1640 wrote to memory of 1788	1640	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe	31
PID 1640 wrote to memory of 1788	1640	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe	31
PID 1640 wrote to memory of 1788	1640	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe	31
PID 1640 wrote to memory of 1276	1640	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe	34
PID 1640 wrote to memory of 1276	1640	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe	34
PID 1640 wrote to memory of 1276	1640	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe	34
PID 1640 wrote to memory of 1276	1640	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe	34
PID 1640 wrote to memory of 1276	1640	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe	34
PID 1640 wrote to memory of 1276	1640	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe	34
PID 1640 wrote to memory of 1276	1640	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe	34
PID 1640 wrote to memory of 1276	1640	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe	34
PID 1640 wrote to memory of 1276	1640	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe	34

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe"
1⤵
- Modifies Windows Defender Real-time Protection settings
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Windows security modification
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1640
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell" Get-MpPreference -verbose
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1788
- C:\Users\Admin\AppData\Local\Temp\f7a6f35fa55966b85599002542e6e680_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\f7a6f35fa55966b85599002542e6e680_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:1276

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Virtualization/Sandbox Evasion

T1497

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/1276-22-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1276-16-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1276-17-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1276-18-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1276-19-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1276-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1276-24-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1276-26-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1640-5-0x0000000074BD0000-0x00000000752BE000-memory.dmp

Filesize
6.9MB

Download
memory/1640-4-0x0000000074BDE000-0x0000000074BDF000-memory.dmp

Filesize
4KB

Download
memory/1640-27-0x0000000074BD0000-0x00000000752BE000-memory.dmp

Filesize
6.9MB

Download
memory/1640-1-0x0000000000B50000-0x0000000000BCA000-memory.dmp

Filesize
488KB

Download
memory/1640-2-0x0000000004F30000-0x0000000004F3A000-memory.dmp

Filesize
40KB

Download
memory/1640-3-0x0000000074BD0000-0x00000000752BE000-memory.dmp

Filesize
6.9MB

Download
memory/1640-0-0x0000000074BDE000-0x0000000074BDF000-memory.dmp

Filesize
4KB

Download
memory/1640-7-0x0000000002050000-0x000000000208E000-memory.dmp

Filesize
248KB

Download
memory/1640-6-0x0000000004D10000-0x0000000004D6E000-memory.dmp

Filesize
376KB

Download
memory/1788-10-0x000000006FA81000-0x000000006FA82000-memory.dmp

Filesize
4KB

Download
memory/1788-11-0x000000006FA80000-0x000000007002B000-memory.dmp

Filesize
5.7MB

Download
memory/1788-15-0x000000006FA80000-0x000000007002B000-memory.dmp

Filesize
5.7MB

Download
memory/1788-14-0x000000006FA80000-0x000000007002B000-memory.dmp

Filesize
5.7MB

Download
memory/1788-12-0x000000006FA80000-0x000000007002B000-memory.dmp

Filesize
5.7MB

Download
memory/1788-13-0x000000006FA80000-0x000000007002B000-memory.dmp

Filesize
5.7MB

Download