Malware Analysis Report

2025-08-05 20:45

Sample ID 240302-24eweaab9w
Target tmp
SHA256 ab1c952a12e853bd77e417cd98b3cc4a1310a0f61c93f37f657a4724545a06f2
Tags
xworm persistence rat 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

ab1c952a12e853bd77e417cd98b3cc4a1310a0f61c93f37f657a4724545a06f2

Threat Level: Known bad

The file tmp was found to be: Known bad.

Malicious Activity Summary

xworm persistence rat trojan

Detect Xworm Payload

Xworm

Drops startup file

Adds Run key to start application

Unsigned PE

Suspicious behavior: AddClipboardFormatListener

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-02 23:07

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-02 23:07

Reported

2024-03-02 23:10

Platform

win7-20240221-en

Max time kernel

150s

Max time network

155s

Command Line

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

Signatures

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

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

Processes

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 nc.bmexcellentfocus.net udp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp

Files

memory/2864-0-0x0000000000D60000-0x0000000000D6A000-memory.dmp

memory/2864-1-0x000007FEF6030000-0x000007FEF6A1C000-memory.dmp

memory/2864-2-0x000000001B120000-0x000000001B1A0000-memory.dmp

memory/2864-3-0x000007FEF6030000-0x000007FEF6A1C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-02 23:07

Reported

2024-03-02 23:10

Platform

win10v2004-20240226-en

Max time kernel

149s

Max time network

147s

Command Line

C:\Windows\Explorer.EXE

Signatures

Detect Xworm Payload

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

Xworm

trojan rat xworm

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SecurityHealthSystray.lnk C:\Windows\Explorer.EXE N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SecurityHealthSystray.lnk C:\Windows\Explorer.EXE N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SecurityHealthSystray = "C:\\ProgramData\\SecurityHealthSystray.exe" C:\Windows\Explorer.EXE N/A

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A C:\Windows\Explorer.EXE N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe N/A
N/A N/A C:\Windows\Explorer.EXE N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeDebugPrivilege N/A C:\Windows\Explorer.EXE N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\Explorer.EXE N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4184 wrote to memory of 3388 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\Explorer.EXE

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 nc.bmexcellentfocus.net udp
ID 153.92.8.74:443 nc.bmexcellentfocus.net tcp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 74.8.92.153.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 140.71.91.104.in-addr.arpa udp
US 8.8.8.8:53 new-coder.cc udp
CA 107.175.3.10:7536 new-coder.cc tcp
US 8.8.8.8:53 10.3.175.107.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp

Files

memory/4184-0-0x0000021713060000-0x000002171306A000-memory.dmp

memory/4184-1-0x00007FFA9E5C0000-0x00007FFA9F081000-memory.dmp

memory/4184-2-0x00000217134B0000-0x00000217134C0000-memory.dmp

memory/3388-3-0x0000000002FD0000-0x0000000002FED000-memory.dmp

memory/4184-5-0x00007FFA9E5C0000-0x00007FFA9F081000-memory.dmp

memory/3388-6-0x00000000033E0000-0x00000000033FC000-memory.dmp

memory/3388-7-0x00007FFA9E5C0000-0x00007FFA9F081000-memory.dmp

memory/3388-8-0x00000000094C0000-0x00000000094D0000-memory.dmp

memory/3388-9-0x00000000094C0000-0x00000000094D0000-memory.dmp

memory/3388-10-0x00007FFA9E5C0000-0x00007FFA9F081000-memory.dmp

memory/3388-11-0x00000000094C0000-0x00000000094D0000-memory.dmp

memory/3388-12-0x00000000094C0000-0x00000000094D0000-memory.dmp