Malware Analysis Report

2024-09-22 21:56

Sample ID 240426-yb1evsbe7v
Target a.png
SHA256 430febf4575bb2ae4f6bd9eab575c97e7726dd3096af36c0806717e3c9bdc984
Tags
bitrat trojan upx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

430febf4575bb2ae4f6bd9eab575c97e7726dd3096af36c0806717e3c9bdc984

Threat Level: Known bad

The file a.png was found to be: Known bad.

Malicious Activity Summary

bitrat trojan upx

BitRAT

UPX packed file

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious use of SetThreadContext

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-04-26 19:37

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-26 19:37

Reported

2024-04-26 19:40

Platform

win7-20240419-en

Max time kernel

122s

Max time network

123s

Command Line

powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\a.ps1

Signatures

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Processes

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\a.ps1

Network

N/A

Files

memory/3008-6-0x000007FEF5240000-0x000007FEF5BDD000-memory.dmp

memory/3008-9-0x00000000029A0000-0x0000000002A20000-memory.dmp

memory/3008-10-0x00000000029A0000-0x0000000002A20000-memory.dmp

memory/3008-8-0x000007FEF5240000-0x000007FEF5BDD000-memory.dmp

memory/3008-7-0x00000000029A0000-0x0000000002A20000-memory.dmp

memory/3008-5-0x0000000001F00000-0x0000000001F08000-memory.dmp

memory/3008-4-0x000000001B640000-0x000000001B922000-memory.dmp

memory/3008-11-0x00000000029A0000-0x0000000002A20000-memory.dmp

memory/3008-12-0x00000000029A0000-0x0000000002A20000-memory.dmp

memory/3008-13-0x000007FEF5240000-0x000007FEF5BDD000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-26 19:37

Reported

2024-04-26 19:40

Platform

win10v2004-20240419-en

Max time kernel

144s

Max time network

145s

Command Line

powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\a.ps1

Signatures

BitRAT

trojan bitrat

UPX packed file

upx
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Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4576 set thread context of 2964 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeShutdownPrivilege 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:\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 WriteProcessMemory

Description Indicator Process Target
PID 4576 wrote to memory of 2636 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4576 wrote to memory of 2636 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4576 wrote to memory of 2636 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4576 wrote to memory of 3892 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4576 wrote to memory of 3892 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4576 wrote to memory of 3892 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4576 wrote to memory of 2964 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4576 wrote to memory of 2964 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4576 wrote to memory of 2964 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4576 wrote to memory of 2964 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4576 wrote to memory of 2964 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4576 wrote to memory of 2964 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4576 wrote to memory of 2964 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

Processes

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\a.ps1

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

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

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

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

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
RU 77.221.151.31:4444 tcp
RU 77.221.151.31:4444 tcp
US 8.8.8.8:53 g.bing.com udp
RU 77.221.151.31:4444 tcp
RU 77.221.151.31:4444 tcp
RU 77.221.151.31:4444 tcp

Files

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_znznbd2t.zyy.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/4576-9-0x00000147A7BD0000-0x00000147A7BF2000-memory.dmp

memory/4576-11-0x000001478EA00000-0x000001478EA10000-memory.dmp

memory/4576-10-0x00007FF97DB40000-0x00007FF97E601000-memory.dmp

memory/4576-12-0x00000147A7C00000-0x00000147A7C0E000-memory.dmp

memory/2964-14-0x0000000000400000-0x00000000007D3000-memory.dmp

memory/4576-13-0x000001478EA00000-0x000001478EA10000-memory.dmp

memory/2964-16-0x0000000000400000-0x00000000007D3000-memory.dmp

memory/2964-15-0x0000000000400000-0x00000000007D3000-memory.dmp

memory/2964-17-0x0000000000400000-0x00000000007D3000-memory.dmp

memory/2964-20-0x0000000000400000-0x00000000007D3000-memory.dmp

memory/4576-21-0x00007FF97DB40000-0x00007FF97E601000-memory.dmp

memory/2964-22-0x0000000000400000-0x00000000007D3000-memory.dmp

memory/2964-23-0x00000000742F0000-0x0000000074329000-memory.dmp

memory/2964-24-0x0000000000400000-0x00000000007D3000-memory.dmp

memory/2964-30-0x0000000000400000-0x00000000007D3000-memory.dmp

memory/2964-31-0x0000000074670000-0x00000000746A9000-memory.dmp

memory/2964-32-0x0000000000400000-0x00000000007D3000-memory.dmp

memory/2964-34-0x0000000000400000-0x00000000007D3000-memory.dmp

memory/2964-33-0x0000000000400000-0x00000000007D3000-memory.dmp

memory/2964-35-0x0000000074670000-0x00000000746A9000-memory.dmp

memory/2964-36-0x0000000000400000-0x00000000007D3000-memory.dmp

memory/2964-37-0x0000000000400000-0x00000000007D3000-memory.dmp

memory/2964-38-0x0000000074670000-0x00000000746A9000-memory.dmp

memory/2964-39-0x0000000000400000-0x00000000007D3000-memory.dmp

memory/2964-40-0x0000000000400000-0x00000000007D3000-memory.dmp

memory/2964-41-0x0000000074670000-0x00000000746A9000-memory.dmp

memory/2964-42-0x0000000000400000-0x00000000007D3000-memory.dmp

memory/2964-43-0x0000000000400000-0x00000000007D3000-memory.dmp

memory/2964-44-0x0000000074670000-0x00000000746A9000-memory.dmp