Malware Analysis Report

2024-10-23 21:08

Sample ID 201109-ffxva4yn2a
Target SOA_JAN_MAY_20_doc.exe
SHA256 dccf76439fbd7e0afbaf8b56edda49b8a842c4b9447a9ebcf71874a622abe2c8
Tags
snakebot snakebot agenttesla coreentity evasion keylogger rezer0 spyware stealer trojan
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

dccf76439fbd7e0afbaf8b56edda49b8a842c4b9447a9ebcf71874a622abe2c8

Threat Level: Known bad

The file SOA_JAN_MAY_20_doc.exe was found to be: Known bad.

Malicious Activity Summary

snakebot snakebot agenttesla coreentity evasion keylogger rezer0 spyware stealer trojan

AgentTesla

CoreEntity .NET Packer

Snakebot family

rezer0

AgentTesla Payload

Contains SnakeBOT related strings

Drops file in Drivers directory

Disables Task Manager via registry modification

Suspicious use of SetThreadContext

Program crash

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Modifies registry key

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 22:07

Platform

win7v20201028

Max time kernel

124s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.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 744 set thread context of 1176 N/A C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.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\SOA_JAN_MAY_20_doc.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\SOA_JAN_MAY_20_doc.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 744 wrote to memory of 1176 N/A C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 744 wrote to memory of 1176 N/A C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 744 wrote to memory of 1176 N/A C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 744 wrote to memory of 1176 N/A C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 744 wrote to memory of 1176 N/A C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 744 wrote to memory of 1176 N/A C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 744 wrote to memory of 1176 N/A C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 744 wrote to memory of 1176 N/A C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 744 wrote to memory of 1176 N/A C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 744 wrote to memory of 1176 N/A C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 744 wrote to memory of 1176 N/A C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 744 wrote to memory of 1176 N/A C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 1176 wrote to memory of 760 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe C:\Windows\SysWOW64\REG.exe
PID 1176 wrote to memory of 760 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe C:\Windows\SysWOW64\REG.exe
PID 1176 wrote to memory of 760 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe C:\Windows\SysWOW64\REG.exe
PID 1176 wrote to memory of 760 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe C:\Windows\SysWOW64\REG.exe
PID 1176 wrote to memory of 1332 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe C:\Windows\SysWOW64\netsh.exe
PID 1176 wrote to memory of 1332 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe C:\Windows\SysWOW64\netsh.exe
PID 1176 wrote to memory of 1332 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe C:\Windows\SysWOW64\netsh.exe
PID 1176 wrote to memory of 1332 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe C:\Windows\SysWOW64\netsh.exe

Processes

C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.exe

"C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.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/744-0-0x0000000074660000-0x0000000074D4E000-memory.dmp

memory/744-1-0x0000000000A40000-0x0000000000A41000-memory.dmp

memory/1204-3-0x000007FEF7900000-0x000007FEF7B7A000-memory.dmp

memory/744-4-0x0000000000980000-0x0000000000983000-memory.dmp

memory/744-5-0x0000000007220000-0x0000000007271000-memory.dmp

memory/1176-6-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1176-7-0x000000000044ABAE-mapping.dmp

memory/1176-8-0x0000000000400000-0x0000000000450000-memory.dmp

memory/744-9-0x0000000000A00000-0x0000000000A30000-memory.dmp

memory/1176-11-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1176-13-0x0000000074660000-0x0000000074D4E000-memory.dmp

memory/760-16-0x0000000000000000-mapping.dmp

memory/1332-17-0x0000000000000000-mapping.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2020-11-09 19:37

Reported

2020-11-09 22:07

Platform

win10v20201028

Max time kernel

64s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.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
N/A N/A N/A N/A
N/A N/A N/A N/A
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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 3160 set thread context of 3488 N/A C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.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\SOA_JAN_MAY_20_doc.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\SOA_JAN_MAY_20_doc.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3160 wrote to memory of 3488 N/A C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 3160 wrote to memory of 3488 N/A C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 3160 wrote to memory of 3488 N/A C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 3160 wrote to memory of 3488 N/A C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 3160 wrote to memory of 3488 N/A C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 3160 wrote to memory of 3488 N/A C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 3160 wrote to memory of 3488 N/A C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 3160 wrote to memory of 3488 N/A C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 3488 wrote to memory of 2072 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe C:\Windows\SysWOW64\REG.exe
PID 3488 wrote to memory of 2072 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe C:\Windows\SysWOW64\REG.exe
PID 3488 wrote to memory of 2072 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe C:\Windows\SysWOW64\REG.exe
PID 3488 wrote to memory of 2112 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe C:\Windows\SysWOW64\netsh.exe
PID 3488 wrote to memory of 2112 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe C:\Windows\SysWOW64\netsh.exe
PID 3488 wrote to memory of 2112 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe C:\Windows\SysWOW64\netsh.exe

Processes

C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.exe

"C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3488 -s 1516

Network

Country Destination Domain Proto
N/A 52.109.12.19:443 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/3160-0-0x00000000733D0000-0x0000000073ABE000-memory.dmp

memory/3160-1-0x00000000005E0000-0x00000000005E1000-memory.dmp

memory/3160-3-0x00000000078E0000-0x00000000078E1000-memory.dmp

memory/3160-4-0x00000000074C0000-0x00000000074C1000-memory.dmp

memory/3160-5-0x00000000074B0000-0x00000000074B1000-memory.dmp

memory/3160-6-0x00000000049E0000-0x00000000049E3000-memory.dmp

memory/3160-7-0x000000000A950000-0x000000000A9A1000-memory.dmp

memory/3160-8-0x000000000ABA0000-0x000000000ABA1000-memory.dmp

memory/3488-9-0x0000000000400000-0x0000000000450000-memory.dmp

memory/3488-10-0x000000000044ABAE-mapping.dmp

memory/3488-11-0x00000000733D0000-0x0000000073ABE000-memory.dmp

memory/3488-16-0x0000000005850000-0x0000000005851000-memory.dmp

memory/3488-17-0x00000000064B0000-0x00000000064B1000-memory.dmp

memory/2072-18-0x0000000000000000-mapping.dmp

memory/2112-19-0x0000000000000000-mapping.dmp

memory/3124-20-0x00000000049B0000-0x00000000049B1000-memory.dmp

memory/3488-21-0x000000000044ABAE-mapping.dmp

memory/3488-22-0x000000000044ABAE-mapping.dmp

memory/3488-23-0x000000000044ABAE-mapping.dmp

memory/3488-24-0x000000000044ABAE-mapping.dmp

memory/3488-25-0x000000000044ABAE-mapping.dmp

memory/3488-26-0x000000000044ABAE-mapping.dmp

memory/3488-28-0x000000000044ABAE-mapping.dmp

memory/3488-27-0x000000000044ABAE-mapping.dmp

memory/3488-30-0x000000000044ABAE-mapping.dmp

memory/3488-29-0x000000000044ABAE-mapping.dmp

memory/3488-31-0x000000000044ABAE-mapping.dmp

memory/3488-32-0x000000000044ABAE-mapping.dmp

memory/3488-33-0x000000000044ABAE-mapping.dmp

memory/3488-34-0x000000000044ABAE-mapping.dmp

memory/3124-36-0x00000000050E0000-0x00000000050E1000-memory.dmp