xworm | 8d59ef4f887ea68153faebb1ac97e69319087ff059903d4b26d1961828a8cbca

Reason

Machine shutdown

General

Target

questmodinstaller.exe
Size

176KB
MD5

ed369f4bf4345b9a0680f904495cd101
SHA1

6dceb43de613608cc8468998605eb4b7836b2412
SHA256

8d59ef4f887ea68153faebb1ac97e69319087ff059903d4b26d1961828a8cbca
SHA512

48b4f2b3a87b76985d6c1b513fa261c822ffd4ae5aa9f8b9cbd9e8dafa684bc0a4cb23a16b8202bd33717a3834c1b54ef9266ca1e27db251dc83752c54eb4761
SSDEEP

3072:gNOFXeivN1tvdibFsmIlOo2FzRbSHNBz65/M6If+3Js+3JFkKeTno:g05vNwbFGHNxBt25

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:53655

147.185.221.24::53655

147.185.221.24:53655

topics-properties.gl.at.ply.gg:53655

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 3 IoCs

resource	yara_rule
behavioral1/memory/1744-1-0x0000000001350000-0x0000000001382000-memory.dmp	family_xworm
behavioral1/files/0x000b000000016a47-36.dat	family_xworm
behavioral1/memory/1644-37-0x00000000011D0000-0x0000000001202000-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 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2796	powershell.exe
2452	powershell.exe
2776	powershell.exe
2340	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	questmodinstaller.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	questmodinstaller.exe

Executes dropped EXE 1 IoCs

pid	Process
1644	XClient.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	ip-api.com

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

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2996	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2796	powershell.exe
2452	powershell.exe
2776	powershell.exe
2340	powershell.exe
1744	questmodinstaller.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	1744	questmodinstaller.exe
Token: SeDebugPrivilege	2796	powershell.exe
Token: SeDebugPrivilege	2452	powershell.exe
Token: SeDebugPrivilege	2776	powershell.exe
Token: SeDebugPrivilege	2340	powershell.exe
Token: SeDebugPrivilege	1744	questmodinstaller.exe
Token: SeDebugPrivilege	1644	XClient.exe
Token: SeShutdownPrivilege	320	shutdown.exe
Token: SeRemoteShutdownPrivilege	320	shutdown.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1744	questmodinstaller.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1744 wrote to memory of 2796	1744	questmodinstaller.exe	31
PID 1744 wrote to memory of 2796	1744	questmodinstaller.exe	31
PID 1744 wrote to memory of 2796	1744	questmodinstaller.exe	31
PID 1744 wrote to memory of 2452	1744	questmodinstaller.exe	33
PID 1744 wrote to memory of 2452	1744	questmodinstaller.exe	33
PID 1744 wrote to memory of 2452	1744	questmodinstaller.exe	33
PID 1744 wrote to memory of 2776	1744	questmodinstaller.exe	35
PID 1744 wrote to memory of 2776	1744	questmodinstaller.exe	35
PID 1744 wrote to memory of 2776	1744	questmodinstaller.exe	35
PID 1744 wrote to memory of 2340	1744	questmodinstaller.exe	37
PID 1744 wrote to memory of 2340	1744	questmodinstaller.exe	37
PID 1744 wrote to memory of 2340	1744	questmodinstaller.exe	37
PID 1744 wrote to memory of 2996	1744	questmodinstaller.exe	39
PID 1744 wrote to memory of 2996	1744	questmodinstaller.exe	39
PID 1744 wrote to memory of 2996	1744	questmodinstaller.exe	39
PID 2704 wrote to memory of 1644	2704	taskeng.exe	43
PID 2704 wrote to memory of 1644	2704	taskeng.exe	43
PID 2704 wrote to memory of 1644	2704	taskeng.exe	43
PID 1744 wrote to memory of 320	1744	questmodinstaller.exe	44
PID 1744 wrote to memory of 320	1744	questmodinstaller.exe	44
PID 1744 wrote to memory of 320	1744	questmodinstaller.exe	44

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\questmodinstaller.exe
"C:\Users\Admin\AppData\Local\Temp\questmodinstaller.exe"
1⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1744
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\questmodinstaller.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2796
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'questmodinstaller.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2452
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2776
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2340
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "XClient" /tr "C:\Users\Admin\AppData\Roaming\XClient.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2996
- C:\Windows\system32\shutdown.exe
  shutdown.exe /f /s /t 0
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:320

C:\Windows\system32\taskeng.exe
taskeng.exe {3D4DB127-CBE8-433E-A2D5-EEEB7D3B835E} S-1-5-21-3290804112-2823094203-3137964600-1000:VORHPBAB\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2704
- C:\Users\Admin\AppData\Roaming\XClient.exe
  C:\Users\Admin\AppData\Roaming\XClient.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1644

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:2144

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
1⤵
PID:1060

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
d65a68e03e0b447bdcefd19c191decb9

SHA1
714a28083549200606ba97a34183d230dd12c7a1

SHA256
e1d368d6462332f717dc58566329def8fd444bfba1e211087a28b3dc8b02fd3f

SHA512
d55e5738b21205c44a79ae6004f753fbc38a6c9581ceee389dbf9d2df6f7354c23a2ef771713e21f4d52fd308f5bb5b9bcca8d104b7669f0b1d0960f11094655

Download Submit
C:\Users\Admin\AppData\Roaming\XClient.exe

Filesize
176KB

MD5
ed369f4bf4345b9a0680f904495cd101

SHA1
6dceb43de613608cc8468998605eb4b7836b2412

SHA256
8d59ef4f887ea68153faebb1ac97e69319087ff059903d4b26d1961828a8cbca

SHA512
48b4f2b3a87b76985d6c1b513fa261c822ffd4ae5aa9f8b9cbd9e8dafa684bc0a4cb23a16b8202bd33717a3834c1b54ef9266ca1e27db251dc83752c54eb4761

Download Submit
memory/1644-37-0x00000000011D0000-0x0000000001202000-memory.dmp

Filesize
200KB

Download
memory/1744-2-0x000007FEF5B40000-0x000007FEF652C000-memory.dmp

Filesize
9.9MB

Download
memory/1744-0-0x000007FEF5B43000-0x000007FEF5B44000-memory.dmp

Filesize
4KB

Download
memory/1744-28-0x000007FEF5B43000-0x000007FEF5B44000-memory.dmp

Filesize
4KB

Download
memory/1744-33-0x000007FEF5B40000-0x000007FEF652C000-memory.dmp

Filesize
9.9MB

Download
memory/1744-1-0x0000000001350000-0x0000000001382000-memory.dmp

Filesize
200KB

Download
memory/1744-38-0x000007FEF5B40000-0x000007FEF652C000-memory.dmp

Filesize
9.9MB

Download
memory/2452-15-0x000000001B6E0000-0x000000001B9C2000-memory.dmp

Filesize
2.9MB

Download
memory/2452-16-0x0000000001DA0000-0x0000000001DA8000-memory.dmp

Filesize
32KB

Download
memory/2796-7-0x0000000002DC0000-0x0000000002E40000-memory.dmp

Filesize
512KB

Download
memory/2796-8-0x000000001B710000-0x000000001B9F2000-memory.dmp

Filesize
2.9MB

Download
memory/2796-9-0x0000000001E50000-0x0000000001E58000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

Errors

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads