Malware Analysis Report

2024-12-07 14:14

Sample ID 241115-chvmaswmby
Target 51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56
SHA256 51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56
Tags
agenttesla collection credential_access discovery keylogger spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56

Threat Level: Known bad

The file 51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56 was found to be: Known bad.

Malicious Activity Summary

agenttesla collection credential_access discovery keylogger spyware stealer trojan

AgentTesla

Agenttesla family

Reads user/profile data of web browsers

Unsecured Credentials: Credentials In Files

Reads WinSCP keys stored on the system

Reads data files stored by FTP clients

Reads user/profile data of local email clients

Accesses Microsoft Outlook profiles

Suspicious use of SetThreadContext

System Location Discovery: System Language Discovery

Unsigned PE

outlook_office_path

outlook_win_path

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-15 02:05

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-15 02:05

Reported

2024-11-15 02:07

Platform

win7-20240903-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

Agenttesla family

agenttesla

Reads WinSCP keys stored on the system

spyware stealer

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of local email clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Unsecured Credentials: Credentials In Files

credential_access stealer

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 292 wrote to memory of 3028 N/A C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe
PID 292 wrote to memory of 3028 N/A C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe
PID 292 wrote to memory of 3028 N/A C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe
PID 292 wrote to memory of 3028 N/A C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe
PID 292 wrote to memory of 3028 N/A C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe
PID 292 wrote to memory of 3028 N/A C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe
PID 292 wrote to memory of 3028 N/A C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe
PID 292 wrote to memory of 3028 N/A C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe
PID 292 wrote to memory of 3028 N/A C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe

"C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe"

C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe

"{path}"

Network

N/A

Files

memory/292-0-0x0000000074651000-0x0000000074652000-memory.dmp

memory/292-1-0x0000000074650000-0x0000000074BFB000-memory.dmp

memory/292-2-0x0000000074650000-0x0000000074BFB000-memory.dmp

memory/292-3-0x0000000074650000-0x0000000074BFB000-memory.dmp

memory/292-4-0x0000000074650000-0x0000000074BFB000-memory.dmp

memory/292-5-0x0000000074650000-0x0000000074BFB000-memory.dmp

memory/3028-6-0x0000000000400000-0x000000000044C000-memory.dmp

memory/3028-16-0x0000000000400000-0x000000000044C000-memory.dmp

memory/3028-14-0x0000000000400000-0x000000000044C000-memory.dmp

memory/3028-12-0x0000000000400000-0x000000000044C000-memory.dmp

memory/3028-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/3028-9-0x0000000000400000-0x000000000044C000-memory.dmp

memory/3028-8-0x0000000000400000-0x000000000044C000-memory.dmp

memory/3028-7-0x0000000000400000-0x000000000044C000-memory.dmp

memory/292-19-0x0000000074650000-0x0000000074BFB000-memory.dmp

memory/3028-18-0x0000000074650000-0x0000000074BFB000-memory.dmp

memory/3028-17-0x0000000074650000-0x0000000074BFB000-memory.dmp

memory/3028-20-0x0000000074650000-0x0000000074BFB000-memory.dmp

memory/3028-21-0x0000000074650000-0x0000000074BFB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-15 02:05

Reported

2024-11-15 02:07

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

Agenttesla family

agenttesla

Reads WinSCP keys stored on the system

spyware stealer

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of local email clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Unsecured Credentials: Credentials In Files

credential_access stealer

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1016 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe
PID 1016 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe
PID 1016 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe
PID 1016 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe
PID 1016 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe
PID 1016 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe
PID 1016 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe
PID 1016 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe

"C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe"

C:\Users\Admin\AppData\Local\Temp\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe

"{path}"

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 smtp.pharco--corp.com udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

memory/1016-0-0x0000000074FE2000-0x0000000074FE3000-memory.dmp

memory/1016-1-0x0000000074FE0000-0x0000000075591000-memory.dmp

memory/1016-2-0x0000000074FE0000-0x0000000075591000-memory.dmp

memory/1016-3-0x0000000074FE2000-0x0000000074FE3000-memory.dmp

memory/1016-4-0x0000000074FE0000-0x0000000075591000-memory.dmp

memory/2776-5-0x0000000000400000-0x000000000044C000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\51b39d9a45bc5845c96d8505fac0cd63ed39831577e706af05ec0edd360f6b56.exe.log

MD5 cb76b18ebed3a9f05a14aed43d35fba6
SHA1 836a4b4e351846fca08b84149cb734cb59b8c0d6
SHA256 8d0edecf54cbbdf7981c8e41a3ed8621503188a87415f9af0fb8d890b138c349
SHA512 7631141e4a6dda29452ada666326837372cd3d045f773006f63d9eff15d9432ed00029d9108a72c1a3b858377600a2aab2c9ec03764285c8801b6019babcf21c

memory/2776-8-0x0000000074FE0000-0x0000000075591000-memory.dmp

memory/1016-9-0x0000000074FE0000-0x0000000075591000-memory.dmp

memory/2776-10-0x0000000074FE0000-0x0000000075591000-memory.dmp

memory/2776-11-0x0000000074FE0000-0x0000000075591000-memory.dmp

memory/2776-12-0x0000000074FE0000-0x0000000075591000-memory.dmp

memory/2776-13-0x0000000074FE0000-0x0000000075591000-memory.dmp

memory/2776-14-0x0000000074FE0000-0x0000000075591000-memory.dmp

memory/2776-15-0x0000000074FE0000-0x0000000075591000-memory.dmp