agenttesla | 67cc97b2f5e9d35039589c92c7f6fda7831af0f259ddf248fb166664e4027b91

General

Target

proforma invoice pdf.exe
Size

858KB
MD5

b67477603738159b912b0aa9c197897f
SHA1

51a14b917e8393a3c1ded172bb04c494fdd727e3
SHA256

67cc97b2f5e9d35039589c92c7f6fda7831af0f259ddf248fb166664e4027b91
SHA512

685fe67b8a5d565ccdaf793a7a25dcd84789ac62e8f747800268a547af2771cfa7b11e758a7255e5d57117fd8151364d296b52aed4ad4d96c5752cd6b0164cc4
SSDEEP

12288:vTEAWYMV+I4MVKWLFRLvHG0YV0k6LbRbMhG8FjrPqre71+8cYLsm2F9QykR:LhGRgYXYak6LbRR8F3inBYsm2LQB

Score

10^/10

agenttesla collection discovery execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5145135161:AAFnBnjYGtIUE_EwGqQ3-YIV1FOEItrzy8c/

Signatures

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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2964	powershell.exe
2024	powershell.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

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\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	proforma invoice pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	proforma invoice pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	proforma invoice pdf.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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\bmBOz = "C:\\Users\\Admin\\AppData\\Local\\Temp\\bmBOz\\bmBOz.exe"	proforma invoice pdf.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	api.ipify.org
5	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2004 set thread context of 2604	2004	proforma invoice pdf.exe	38

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 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	proforma invoice pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	proforma invoice pdf.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2716	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2004	proforma invoice pdf.exe
2004	proforma invoice pdf.exe
2004	proforma invoice pdf.exe
2004	proforma invoice pdf.exe
2964	powershell.exe
2024	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2004	proforma invoice pdf.exe
Token: SeDebugPrivilege	2604	proforma invoice pdf.exe
Token: SeDebugPrivilege	2964	powershell.exe
Token: SeDebugPrivilege	2024	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2604	proforma invoice pdf.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 2964	2004	proforma invoice pdf.exe	31
PID 2004 wrote to memory of 2964	2004	proforma invoice pdf.exe	31
PID 2004 wrote to memory of 2964	2004	proforma invoice pdf.exe	31
PID 2004 wrote to memory of 2964	2004	proforma invoice pdf.exe	31
PID 2004 wrote to memory of 2024	2004	proforma invoice pdf.exe	33
PID 2004 wrote to memory of 2024	2004	proforma invoice pdf.exe	33
PID 2004 wrote to memory of 2024	2004	proforma invoice pdf.exe	33
PID 2004 wrote to memory of 2024	2004	proforma invoice pdf.exe	33
PID 2004 wrote to memory of 2716	2004	proforma invoice pdf.exe	35
PID 2004 wrote to memory of 2716	2004	proforma invoice pdf.exe	35
PID 2004 wrote to memory of 2716	2004	proforma invoice pdf.exe	35
PID 2004 wrote to memory of 2716	2004	proforma invoice pdf.exe	35
PID 2004 wrote to memory of 2160	2004	proforma invoice pdf.exe	37
PID 2004 wrote to memory of 2160	2004	proforma invoice pdf.exe	37
PID 2004 wrote to memory of 2160	2004	proforma invoice pdf.exe	37
PID 2004 wrote to memory of 2160	2004	proforma invoice pdf.exe	37
PID 2004 wrote to memory of 2604	2004	proforma invoice pdf.exe	38
PID 2004 wrote to memory of 2604	2004	proforma invoice pdf.exe	38
PID 2004 wrote to memory of 2604	2004	proforma invoice pdf.exe	38
PID 2004 wrote to memory of 2604	2004	proforma invoice pdf.exe	38
PID 2004 wrote to memory of 2604	2004	proforma invoice pdf.exe	38
PID 2004 wrote to memory of 2604	2004	proforma invoice pdf.exe	38
PID 2004 wrote to memory of 2604	2004	proforma invoice pdf.exe	38
PID 2004 wrote to memory of 2604	2004	proforma invoice pdf.exe	38
PID 2004 wrote to memory of 2604	2004	proforma invoice pdf.exe	38

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	proforma invoice pdf.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	proforma invoice pdf.exe

C:\Users\Admin\AppData\Local\Temp\proforma invoice pdf.exe
"C:\Users\Admin\AppData\Local\Temp\proforma invoice pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2004
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\proforma invoice pdf.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2964
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\wTyVrj.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2024
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wTyVrj" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE753.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2716
- C:\Users\Admin\AppData\Local\Temp\proforma invoice pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\proforma invoice pdf.exe"
  2⤵
  PID:2160
- C:\Users\Admin\AppData\Local\Temp\proforma invoice pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\proforma invoice pdf.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:2604

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Information Discovery

1

T1082

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

C:\Users\Admin\AppData\Local\Temp\tmpE753.tmp

Filesize
1KB

MD5
95881f91124ddfa9489bcc20e028760f

SHA1
a7e06a84c1bc78456f976729070490fe54e256a5

SHA256
79b63e92fae311ba9b9a302785e235b4b9e9eb0c6bc6e184e80dca5234c36619

SHA512
025e9069aaf64d0b4ca008140a05dbe568fe5bc1519be049699a52be85f981be6dd8c97da4e360a504d5551e8d6b8145a9feaf73a3228d73af27e17c7d4f9f9a

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
fda39d9579f475ca900b8811f9f11dc5

SHA1
e358ee21cfb97b068c7513d72dd241125e64b9f5

SHA256
5218c14b4ef76b376e4e03f79a1cc83e542ad0d3bdc381b0e203a34e74ab8b46

SHA512
389e3c536934d0673b647d55d5cc0cee7833c5f098b09928f907d48668828935298fa5dd968294338ef7c047c8e4bc80235ab78a7d967acf8ddff3477eea30dc

Download Submit
memory/2004-4-0x000000007428E000-0x000000007428F000-memory.dmp

Filesize
4KB

Download
memory/2004-3-0x00000000005E0000-0x00000000005FC000-memory.dmp

Filesize
112KB

Download
memory/2004-0-0x000000007428E000-0x000000007428F000-memory.dmp

Filesize
4KB

Download
memory/2004-5-0x0000000074280000-0x000000007496E000-memory.dmp

Filesize
6.9MB

Download
memory/2004-6-0x0000000074280000-0x000000007496E000-memory.dmp

Filesize
6.9MB

Download
memory/2004-7-0x0000000004DE0000-0x0000000004E56000-memory.dmp

Filesize
472KB

Download
memory/2004-2-0x0000000074280000-0x000000007496E000-memory.dmp

Filesize
6.9MB

Download
memory/2004-1-0x00000000000B0000-0x000000000018A000-memory.dmp

Filesize
872KB

Download
memory/2004-33-0x0000000074280000-0x000000007496E000-memory.dmp

Filesize
6.9MB

Download
memory/2604-32-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2604-30-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2604-29-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2604-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2604-26-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2604-24-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2604-20-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2604-22-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads