Malware Analysis Report

2025-06-16 03:22

Sample ID 220507-1nzp7sffa9
Target 448d23c53cc9f4a1a97683474c4e2e7a45ac05570effebc9018924a2c3cc44dc.7z
SHA256 4da6827106cb64a9d743cc14a86b950df686ebd22223de9a288c8eee06cce526
Tags
bitrat suricata trojan upx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

4da6827106cb64a9d743cc14a86b950df686ebd22223de9a288c8eee06cce526

Threat Level: Known bad

The file 448d23c53cc9f4a1a97683474c4e2e7a45ac05570effebc9018924a2c3cc44dc.7z was found to be: Known bad.

Malicious Activity Summary

bitrat suricata trojan upx

BitRAT

suricata: ET MALWARE Observed Malicious SSL Cert (BitRAT CnC)

UPX packed file

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious use of SetThreadContext

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2022-05-07 21:48

Signatures

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2022-05-07 21:48

Reported

2022-05-07 21:54

Platform

win10v2004-20220414-en

Max time kernel

320s

Max time network

337s

Command Line

powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\448d23c53cc9f4a1a97683474c4e2e7a45ac05570effebc9018924a2c3cc44dc.ps1

Signatures

BitRAT

trojan bitrat

suricata: ET MALWARE Observed Malicious SSL Cert (BitRAT CnC)

suricata

UPX packed file

upx
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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2140 set thread context of 4928 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.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\aspnet_regbrowsers.exe N/A

Suspicious use of SetWindowsHookEx

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2140 wrote to memory of 844 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe
PID 2140 wrote to memory of 844 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe
PID 2140 wrote to memory of 844 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe
PID 2140 wrote to memory of 4204 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe
PID 2140 wrote to memory of 4204 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe
PID 2140 wrote to memory of 4204 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe
PID 2140 wrote to memory of 3736 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe
PID 2140 wrote to memory of 3736 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe
PID 2140 wrote to memory of 3736 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe
PID 2140 wrote to memory of 4928 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe
PID 2140 wrote to memory of 4928 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe
PID 2140 wrote to memory of 4928 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe
PID 2140 wrote to memory of 4928 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe
PID 2140 wrote to memory of 4928 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe
PID 2140 wrote to memory of 4928 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe
PID 2140 wrote to memory of 4928 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe

Processes

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

powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\448d23c53cc9f4a1a97683474c4e2e7a45ac05570effebc9018924a2c3cc44dc.ps1

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

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

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

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

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

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

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

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

Network

Country Destination Domain Proto
US 93.184.220.29:80 tcp
US 209.197.3.8:80 tcp
US 209.197.3.8:80 tcp
US 209.197.3.8:80 tcp
US 204.79.197.200:443 tcp
NL 104.110.191.140:80 tcp
US 93.184.220.29:80 tcp
US 52.168.117.170:443 tcp
US 209.197.3.8:80 tcp
US 209.197.3.8:80 tcp
US 209.197.3.8:80 tcp
FR 2.18.109.224:443 tcp
US 104.18.25.243:80 tcp
US 8.8.8.8:53 bitrat9300.duckdns.org udp
RU 194.147.140.17:9300 bitrat9300.duckdns.org tcp
US 8.8.8.8:53 bitrat9300.duckdns.org udp
US 8.8.8.8:53 bitrat9300.duckdns.org udp
US 8.8.8.8:53 bitrat9300.duckdns.org udp

Files

memory/2140-130-0x00000261681D0000-0x00000261681F2000-memory.dmp

memory/2140-131-0x00007FFA0DD00000-0x00007FFA0E7C1000-memory.dmp

memory/4928-133-0x00000000007E2730-mapping.dmp

memory/4928-132-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/4928-134-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/4928-135-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/4928-136-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/4928-137-0x0000000000400000-0x00000000007E4000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2022-05-07 21:48

Reported

2022-05-07 21:54

Platform

win7-20220414-en

Max time kernel

317s

Max time network

349s

Command Line

powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\448d23c53cc9f4a1a97683474c4e2e7a45ac05570effebc9018924a2c3cc44dc.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\448d23c53cc9f4a1a97683474c4e2e7a45ac05570effebc9018924a2c3cc44dc.ps1

Network

N/A

Files

memory/1648-54-0x000007FEFC061000-0x000007FEFC063000-memory.dmp

memory/1648-55-0x000007FEF4630000-0x000007FEF5053000-memory.dmp

memory/1648-56-0x000007FEF3950000-0x000007FEF44AD000-memory.dmp

memory/1648-57-0x0000000002684000-0x0000000002687000-memory.dmp

memory/1648-58-0x000000000268B000-0x00000000026AA000-memory.dmp