Malware Analysis Report

2025-01-03 05:08

Sample ID 230901-t1yv4sfh8t
Target ba_JC.exe
SHA256 1da5b144be7b321399e604ff0173fd831c9cd0588365f3dbf9f08a68d943b4d5
Tags
bitrat persistence 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

1da5b144be7b321399e604ff0173fd831c9cd0588365f3dbf9f08a68d943b4d5

Threat Level: Known bad

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

Malicious Activity Summary

bitrat persistence trojan

BitRAT

Bitrat family

Adds Run key to start application

Suspicious use of NtSetInformationThreadHideFromDebugger

Unsigned PE

Suspicious behavior: RenamesItself

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-09-01 16:32

Signatures

Bitrat family

bitrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-09-01 16:32

Reported

2023-09-01 16:34

Platform

win7-20230831-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ba_JC.exe"

Signatures

BitRAT

trojan bitrat

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000\Software\Microsoft\Windows\CurrentVersion\Run\updater = "C:\\Users\\Admin\\AppData\\Local\\chrome\\updater" C:\Users\Admin\AppData\Local\Temp\ba_JC.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

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

Suspicious behavior: RenamesItself

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of SetWindowsHookEx

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

Processes

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

"C:\Users\Admin\AppData\Local\Temp\ba_JC.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 rornfl12.duckdns.org udp
KR 112.173.56.153:3072 rornfl12.duckdns.org tcp
US 8.8.8.8:53 rornfl12.duckdns.org udp
US 8.8.8.8:53 rornfl12.duckdns.org udp
US 8.8.8.8:53 rornfl12.duckdns.org udp

Files

memory/2968-0-0x0000000000400000-0x00000000007CE000-memory.dmp

memory/2968-1-0x0000000000290000-0x000000000029A000-memory.dmp

memory/2968-2-0x0000000000290000-0x000000000029A000-memory.dmp

memory/2968-3-0x0000000000290000-0x000000000029A000-memory.dmp

memory/2968-4-0x0000000000290000-0x000000000029A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-09-01 16:32

Reported

2023-09-01 16:34

Platform

win10v2004-20230831-en

Max time kernel

150s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ba_JC.exe"

Signatures

BitRAT

trojan bitrat

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1980726966-773384374-2129981223-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\updater = "C:\\Users\\Admin\\AppData\\Local\\chrome\\updater" C:\Users\Admin\AppData\Local\Temp\ba_JC.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1980726966-773384374-2129981223-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\updater = "C:\\Users\\Admin\\AppData\\Local\\chrome\\updaterԀ" C:\Users\Admin\AppData\Local\Temp\ba_JC.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

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

Suspicious behavior: RenamesItself

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba_JC.exe N/A

Suspicious use of SetWindowsHookEx

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

Processes

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

"C:\Users\Admin\AppData\Local\Temp\ba_JC.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 rornfl12.duckdns.org udp
KR 112.173.56.153:3072 rornfl12.duckdns.org tcp
US 8.8.8.8:53 153.56.173.112.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 240.81.21.72.in-addr.arpa udp
US 8.8.8.8:53 rornfl12.duckdns.org udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 rornfl12.duckdns.org udp
US 8.8.8.8:53 88.65.42.20.in-addr.arpa udp

Files

memory/3592-0-0x0000000000400000-0x00000000007CE000-memory.dmp

memory/3592-1-0x00000000751F0000-0x0000000075229000-memory.dmp

memory/3592-2-0x0000000074EB0000-0x0000000074EE9000-memory.dmp

memory/3592-3-0x0000000074EB0000-0x0000000074EE9000-memory.dmp