Malware Analysis Report

2024-10-23 21:08

Sample ID 201109-tbt1rk4f32
Target PURCHASE LIST.exe
SHA256 07d6953a68436385a5c78086ae9cf68fb5f5e44adeb6333f84aaa0ffd94a0ed5
Tags
snakebot snakebot agenttesla coreentity evasion keylogger rezer0 spyware stealer trojan nanocore
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

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

07d6953a68436385a5c78086ae9cf68fb5f5e44adeb6333f84aaa0ffd94a0ed5

Threat Level: Known bad

The file PURCHASE LIST.exe was found to be: Known bad.

Malicious Activity Summary

snakebot snakebot agenttesla coreentity evasion keylogger rezer0 spyware stealer trojan nanocore

CoreEntity .NET Packer

NanoCore

AgentTesla

Snakebot family

Contains SnakeBOT related strings

rezer0

AgentTesla Payload

Drops file in Drivers directory

Disables Task Manager via registry modification

Suspicious use of SetThreadContext

Program crash

Modifies registry key

Suspicious use of SetWindowsHookEx

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2020-11-09 19:37

Signatures

Snakebot family

snakebot

Contains SnakeBOT related strings

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

Analysis: behavioral1

Detonation Overview

Submitted

2020-11-09 19:37

Reported

2020-11-09 22:06

Platform

win7v20201028

Max time kernel

132s

Max time network

133s

Command Line

"C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

CoreEntity .NET Packer

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

AgentTesla Payload

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

rezer0

rezer0
Description Indicator Process Target
N/A N/A N/A N/A

Disables Task Manager via registry modification

evasion

Drops file in Drivers directory

Description Indicator Process Target
File opened for modification C:\Windows\system32\drivers\etc\hosts C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 344 set thread context of 1888 N/A C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

Modifies registry key

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\REG.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 344 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 344 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 344 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 344 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 344 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 344 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 344 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 344 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 344 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 344 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 344 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 344 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 1888 wrote to memory of 844 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe C:\Windows\SysWOW64\REG.exe
PID 1888 wrote to memory of 844 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe C:\Windows\SysWOW64\REG.exe
PID 1888 wrote to memory of 844 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe C:\Windows\SysWOW64\REG.exe
PID 1888 wrote to memory of 844 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe C:\Windows\SysWOW64\REG.exe
PID 1888 wrote to memory of 652 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe C:\Windows\SysWOW64\netsh.exe
PID 1888 wrote to memory of 652 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe C:\Windows\SysWOW64\netsh.exe
PID 1888 wrote to memory of 652 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe C:\Windows\SysWOW64\netsh.exe
PID 1888 wrote to memory of 652 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe C:\Windows\SysWOW64\netsh.exe

Processes

C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe

"C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

"{path}"

C:\Windows\SysWOW64\REG.exe

REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f

C:\Windows\SysWOW64\netsh.exe

"netsh" wlan show profile

Network

N/A

Files

memory/344-0-0x0000000073FF0000-0x00000000746DE000-memory.dmp

memory/344-1-0x0000000000C70000-0x0000000000C71000-memory.dmp

memory/2024-3-0x000007FEF7590000-0x000007FEF780A000-memory.dmp

memory/344-4-0x0000000000420000-0x0000000000423000-memory.dmp

memory/344-5-0x0000000004360000-0x00000000043B3000-memory.dmp

memory/1888-6-0x0000000000400000-0x0000000000452000-memory.dmp

memory/1888-7-0x000000000044CD3E-mapping.dmp

memory/1888-8-0x0000000000400000-0x0000000000452000-memory.dmp

memory/1888-9-0x0000000000400000-0x0000000000452000-memory.dmp

memory/1888-10-0x00000000732D0000-0x00000000739BE000-memory.dmp

memory/844-13-0x0000000000000000-mapping.dmp

memory/652-14-0x0000000000000000-mapping.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2020-11-09 19:37

Reported

2020-11-09 22:06

Platform

win10v20201028

Max time kernel

69s

Max time network

128s

Command Line

"C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

CoreEntity .NET Packer

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

NanoCore

keylogger trojan stealer spyware nanocore

AgentTesla Payload

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

rezer0

rezer0
Description Indicator Process Target
N/A N/A N/A N/A

Disables Task Manager via registry modification

evasion

Drops file in Drivers directory

Description Indicator Process Target
File opened for modification C:\Windows\system32\drivers\etc\hosts C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3980 set thread context of 4032 N/A C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

Modifies registry key

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\REG.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\SysWOW64\WerFault.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\SysWOW64\WerFault.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WerFault.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3980 wrote to memory of 4032 N/A C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 3980 wrote to memory of 4032 N/A C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 3980 wrote to memory of 4032 N/A C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 3980 wrote to memory of 4032 N/A C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 3980 wrote to memory of 4032 N/A C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 3980 wrote to memory of 4032 N/A C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 3980 wrote to memory of 4032 N/A C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 3980 wrote to memory of 4032 N/A C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4032 wrote to memory of 1124 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe C:\Windows\SysWOW64\REG.exe
PID 4032 wrote to memory of 1124 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe C:\Windows\SysWOW64\REG.exe
PID 4032 wrote to memory of 1124 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe C:\Windows\SysWOW64\REG.exe

Processes

C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe

"C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

"{path}"

C:\Windows\SysWOW64\REG.exe

REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4032 -s 1436

Network

Country Destination Domain Proto
N/A 52.109.12.18:443 tcp
N/A 8.8.8.8:53 www.google.com.br udp
N/A 172.217.19.195:443 www.google.com.br tcp
N/A 13.107.4.52:80 www.msftconnecttest.com tcp

Files

memory/3980-0-0x0000000073A20000-0x000000007410E000-memory.dmp

memory/3980-1-0x0000000000FE0000-0x0000000000FE1000-memory.dmp

memory/3980-3-0x00000000081C0000-0x00000000081C1000-memory.dmp

memory/3980-4-0x0000000007DA0000-0x0000000007DA1000-memory.dmp

memory/3980-5-0x0000000007D70000-0x0000000007D71000-memory.dmp

memory/3980-6-0x0000000005340000-0x0000000005343000-memory.dmp

memory/3980-7-0x000000000B380000-0x000000000B3D3000-memory.dmp

memory/3980-8-0x000000000B480000-0x000000000B481000-memory.dmp

memory/4032-9-0x0000000000400000-0x0000000000452000-memory.dmp

memory/4032-10-0x000000000044CD3E-mapping.dmp

memory/4032-11-0x0000000073A20000-0x000000007410E000-memory.dmp

memory/4032-16-0x00000000059F0000-0x00000000059F1000-memory.dmp

memory/4032-17-0x00000000064A0000-0x00000000064A1000-memory.dmp

memory/1124-18-0x0000000000000000-mapping.dmp

memory/1696-19-0x00000000044F0000-0x00000000044F1000-memory.dmp

memory/4032-20-0x000000000044CD3E-mapping.dmp

memory/4032-23-0x000000000044CD3E-mapping.dmp

memory/4032-24-0x000000000044CD3E-mapping.dmp

memory/4032-30-0x000000000044CD3E-mapping.dmp

memory/4032-29-0x000000000044CD3E-mapping.dmp

memory/4032-28-0x000000000044CD3E-mapping.dmp

memory/4032-27-0x000000000044CD3E-mapping.dmp

memory/4032-26-0x000000000044CD3E-mapping.dmp

memory/4032-25-0x000000000044CD3E-mapping.dmp

memory/4032-22-0x000000000044CD3E-mapping.dmp

memory/4032-21-0x000000000044CD3E-mapping.dmp

memory/1696-31-0x0000000004D20000-0x0000000004D21000-memory.dmp

memory/1696-40-0x0000000005120000-0x0000000005121000-memory.dmp