agenttesla | 4452f24dca9c5b6e385c5b5937520b3c4a814aa0aba0a186e08d460c9caeda94

Analysis

max time kernel
149s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
28/07/2026, 00:26

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General

Target
FACTURA-7654345678760000023.exe
Size 902KB
Sample260728-aramdaeb87
SHA256 4452f24dca9c5b6e385c5b5937520b3c4a814aa0aba0a186e08d460c9caeda94
MD5 b1dc86726bd3a4e5ca557900399d56e7
SHA1 a914f54e213aa631984f034fef0aa426d9003cb1
SHA512 c54fe3f335c4abbf896888cfe16a7176c67d67d3fbcb7e8024531b8ffd98c2b80bf17a68fca70e93f06982eb46c297515487c504281420a597beea557b210716
SSDEEP 12288:LecHPzPwCumUjKkZIvilp+07uMortfB4takMtzql8kwRLv77SQzNMbu3z1i:Lem7P4KkZ/cSIkIRBJPi
TLSH
T12015BF52F7845796CCA963741039CA3003F6BD966935E55D2EE83D9B3FF2EA38222503
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

collection credential_access crypter defense_evasion discovery execution agenttesla darktortilla keylogger loader persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
servidor3398.tl.controladordns.com
Port
587
Username
[email protected]
Password
6LHg9N1vxx1900
Email to
[email protected]

Signatures

Family: AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Family: Darktortilla
DarkTortilla is a highly configurable .NET based crypter that delivers a wide range of information stealers.
loader crypter darktortilla

Detects Darktortilla crypter. 1 IoCs

resource	yara_rule
behavioral1/memory/5004-6-0x00000000075A0000-0x00000000075D0000-memory.dmp	darktortilla

System Binary Proxy Execution: InstallUtil 1 TTPs 2 IoCs

Abuse InstallUtil to proxy execution of malicious code.

defense_evasion

InstallUtil

T1218.004

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe	FACTURA-7654345678760000023.exe
Key opened	\Registry\Machine\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Custom\InstallUtil.exe	ouytrtyuio.exe

Executes dropped EXE 2 IoCs

pid	Process
4024	ouytrtyuio.exe
2500	InstallUtil.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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.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-1-5-21-668679576-120646659-2289335452-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\987654567 = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\ouytrtyuio.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4024 set thread context of 2500	4024	ouytrtyuio.exe	108

Executes a command shell one-liner 1 TTPs 2 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
4288	cmd.exe
2012	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 9 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	FACTURA-7654345678760000023.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ouytrtyuio.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 5 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4288	cmd.exe
3480	PING.EXE
2012	cmd.exe
3256	PING.EXE
2112	PING.EXE

Runs ping.exe 1 TTPs 3 IoCs

Remote System Discovery

T1018

pid	Process
3480	PING.EXE
3256	PING.EXE
2112	PING.EXE

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
5004	FACTURA-7654345678760000023.exe
5004	FACTURA-7654345678760000023.exe
5004	FACTURA-7654345678760000023.exe
5004	FACTURA-7654345678760000023.exe
5004	FACTURA-7654345678760000023.exe
5004	FACTURA-7654345678760000023.exe
5004	FACTURA-7654345678760000023.exe
5004	FACTURA-7654345678760000023.exe
5004	FACTURA-7654345678760000023.exe
5004	FACTURA-7654345678760000023.exe
5004	FACTURA-7654345678760000023.exe
5004	FACTURA-7654345678760000023.exe
5004	FACTURA-7654345678760000023.exe
5004	FACTURA-7654345678760000023.exe
5004	FACTURA-7654345678760000023.exe
5004	FACTURA-7654345678760000023.exe
5004	FACTURA-7654345678760000023.exe
5004	FACTURA-7654345678760000023.exe
5004	FACTURA-7654345678760000023.exe
5004	FACTURA-7654345678760000023.exe
5004	FACTURA-7654345678760000023.exe
5004	FACTURA-7654345678760000023.exe
5004	FACTURA-7654345678760000023.exe
5004	FACTURA-7654345678760000023.exe
5004	FACTURA-7654345678760000023.exe
4024	ouytrtyuio.exe
4024	ouytrtyuio.exe
2500	InstallUtil.exe
2500	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	5004	FACTURA-7654345678760000023.exe
Token: SeDebugPrivilege	4024	ouytrtyuio.exe
Token: SeDebugPrivilege	2500	InstallUtil.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 5004 wrote to memory of 4288	5004	FACTURA-7654345678760000023.exe	91
PID 4288 wrote to memory of 3480	4288	cmd.exe	93
PID 5004 wrote to memory of 2012	5004	FACTURA-7654345678760000023.exe	94
PID 2012 wrote to memory of 3256	2012	cmd.exe	96
PID 4288 wrote to memory of 3344	4288	cmd.exe	97
PID 2012 wrote to memory of 2112	2012	cmd.exe	101
PID 2012 wrote to memory of 4024	2012	cmd.exe	102
PID 4024 wrote to memory of 2500	4024	ouytrtyuio.exe	108
PID 4024 wrote to memory of 2500	4024	ouytrtyuio.exe	108
PID 4024 wrote to memory of 2500	4024	ouytrtyuio.exe	108
PID 4024 wrote to memory of 2500	4024	ouytrtyuio.exe	108
PID 4024 wrote to memory of 2500	4024	ouytrtyuio.exe	108

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\FACTURA-7654345678760000023.exe
"C:\Users\Admin\AppData\Local\Temp\FACTURA-7654345678760000023.exe"
1⤵
- System Binary Proxy Execution: InstallUtil
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5004
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c ping 127.0.0.1 -n 8 > nul && REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "987654567" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\ouytrtyuio.exe"
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4288
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 8
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3480
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "987654567" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\ouytrtyuio.exe"
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    PID:3344
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c ping 127.0.0.1 -n 12 > nul && copy "C:\Users\Admin\AppData\Local\Temp\FACTURA-7654345678760000023.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\ouytrtyuio.exe" && ping 127.0.0.1 -n 12 > nul && "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\ouytrtyuio.exe"
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2012
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 12
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3256
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 12
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2112
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\ouytrtyuio.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\ouytrtyuio.exe"
    3⤵
    - System Binary Proxy Execution: InstallUtil
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4024
  - - C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
      "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
      4⤵
      Executes dropped EXE
      Accesses Microsoft Outlook profiles
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      outlook_office_path
      outlook_win_path
      PID:2500

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

System Binary Proxy Execution

T1218

InstallUtil

T1218.004

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

Remote System Discovery

T1018

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

InstallUtil.exe

Path C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
Size 41KB
SHA256 ac1a3f21fcc88f9cee7bf51581eafba24cc76c924f0821deb2afdf1080ddf3d3
MD5 5d4073b2eb6d217c19f2b22f21bf8d57
SHA1 f0209900fbf08d004b886a0b3ba33ea2b0bf9da8
SHA512 9ac94880684933ba3407cdc135abc3047543436567af14cd9269c4adc5a6535db7b867d6de0d6238a21b94e69f9890dbb5739155871a624520623a7e56872159
SSDEEP 384:qtpFVLK0MsihB9VKS7xdgl6KJ9Yl6dnPU3SERztmbqCJstdMardz/JikPZ+RPZTg:GBMs2SqdSZ6Iq8BxTfqWR8h7ukP
TLSH
T13D13C724C7F85313E2B34B70A9F5C487AD76B953AE74DB9C248A534D09237848A5373E
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

ouytrtyuio.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\ouytrtyuio.exe
Size 902KB
SHA256 4452f24dca9c5b6e385c5b5937520b3c4a814aa0aba0a186e08d460c9caeda94
MD5 b1dc86726bd3a4e5ca557900399d56e7
SHA1 a914f54e213aa631984f034fef0aa426d9003cb1
SHA512 c54fe3f335c4abbf896888cfe16a7176c67d67d3fbcb7e8024531b8ffd98c2b80bf17a68fca70e93f06982eb46c297515487c504281420a597beea557b210716
SSDEEP 12288:LecHPzPwCumUjKkZIvilp+07uMortfB4takMtzql8kwRLv77SQzNMbu3z1i:Lem7P4KkZ/cSIkIRBJPi
TLSH
T12015BF52F7845796CCA963741039CA3003F6BD966935E55D2EE83D9B3FF2EA38222503
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2500-28-0x0000000005E90000-0x0000000005EE0000-memory.dmp

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memory/2500-27-0x00000000057D0000-0x0000000005836000-memory.dmp

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memory/2500-26-0x0000000004EF0000-0x0000000004F08000-memory.dmp

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memory/2500-25-0x00000000005A0000-0x00000000005DA000-memory.dmp

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memory/4024-16-0x0000000008090000-0x00000000080AA000-memory.dmp

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memory/4024-19-0x000000000DE30000-0x000000000DE52000-memory.dmp

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memory/4024-18-0x000000000DA70000-0x000000000DDC4000-memory.dmp

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memory/4024-17-0x000000000A7A0000-0x000000000A7A6000-memory.dmp

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memory/5004-4-0x00000000059C0000-0x00000000059D0000-memory.dmp

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memory/5004-9-0x00000000059C0000-0x00000000059D0000-memory.dmp

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memory/5004-7-0x00000000079F0000-0x00000000079FA000-memory.dmp

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memory/5004-6-0x00000000075A0000-0x00000000075D0000-memory.dmp

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memory/5004-5-0x00000000059C0000-0x00000000059D0000-memory.dmp

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memory/5004-0-0x0000000000EC0000-0x0000000000FA8000-memory.dmp

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memory/5004-3-0x0000000005AD0000-0x0000000005B6C000-memory.dmp

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memory/5004-2-0x0000000005A20000-0x0000000005AB2000-memory.dmp

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memory/5004-1-0x0000000006080000-0x0000000006624000-memory.dmp

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