xworm | af652fa448221ed08ba75eb68ad1ba894e4d3bafdbfa4569eef4704fd14c76c7

Analysis

max time kernel
30s
max time network
31s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241023-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
16/11/2024, 23:23

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General

Target

Discord.exe
Size

923KB
MD5

dde9c5a240d1467bbeb73bf9800e2451
SHA1

84da3914545cbca748465892deb5c45fe7849ddf
SHA256

af652fa448221ed08ba75eb68ad1ba894e4d3bafdbfa4569eef4704fd14c76c7
SHA512

ce85de90686c7e64fe90201428993c02461729428a48937961ea6fc09fc7e5e65b13acdeaae54cbdd65ebdf5b93e769ef16020d96094ca498e1699a91c240e77
SSDEEP

12288:RiuHvJKVze1rxIH8P2ttPfDBQW6dmlgNlHDCJ9dZay:pPJKzyoUctPLGW6dmlgNljCr1

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

45.141.27.91:7777

Attributes

Install_directory
%AppData%
install_file
svchost.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/files/0x0026000000045177-15.dat	family_xworm
behavioral1/memory/2160-27-0x0000000000070000-0x000000000008A000-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
2052	powershell.exe
2648	powershell.exe
4068	powershell.exe
2476	powershell.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-4152190078-1497776152-96910572-1000\Control Panel\International\Geo\Nation	Discord.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4152190078-1497776152-96910572-1000\Control Panel\International\Geo\Nation	svchost.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 2 IoCs

pid	Process
3268	batLocking.exe
2160	svchost.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4152190078-1497776152-96910572-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	svchost.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
25	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
4080	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2052	powershell.exe
2052	powershell.exe
2648	powershell.exe
2648	powershell.exe
4068	powershell.exe
4068	powershell.exe
2476	powershell.exe
2476	powershell.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2160	svchost.exe
Token: SeDebugPrivilege	2052	powershell.exe
Token: SeIncreaseQuotaPrivilege	2052	powershell.exe
Token: SeSecurityPrivilege	2052	powershell.exe
Token: SeTakeOwnershipPrivilege	2052	powershell.exe
Token: SeLoadDriverPrivilege	2052	powershell.exe
Token: SeSystemProfilePrivilege	2052	powershell.exe
Token: SeSystemtimePrivilege	2052	powershell.exe
Token: SeProfSingleProcessPrivilege	2052	powershell.exe
Token: SeIncBasePriorityPrivilege	2052	powershell.exe
Token: SeCreatePagefilePrivilege	2052	powershell.exe
Token: SeBackupPrivilege	2052	powershell.exe
Token: SeRestorePrivilege	2052	powershell.exe
Token: SeShutdownPrivilege	2052	powershell.exe
Token: SeDebugPrivilege	2052	powershell.exe
Token: SeSystemEnvironmentPrivilege	2052	powershell.exe
Token: SeRemoteShutdownPrivilege	2052	powershell.exe
Token: SeUndockPrivilege	2052	powershell.exe
Token: SeManageVolumePrivilege	2052	powershell.exe
Token: 33	2052	powershell.exe
Token: 34	2052	powershell.exe
Token: 35	2052	powershell.exe
Token: 36	2052	powershell.exe
Token: SeDebugPrivilege	2648	powershell.exe
Token: SeIncreaseQuotaPrivilege	2648	powershell.exe
Token: SeSecurityPrivilege	2648	powershell.exe
Token: SeTakeOwnershipPrivilege	2648	powershell.exe
Token: SeLoadDriverPrivilege	2648	powershell.exe
Token: SeSystemProfilePrivilege	2648	powershell.exe
Token: SeSystemtimePrivilege	2648	powershell.exe
Token: SeProfSingleProcessPrivilege	2648	powershell.exe
Token: SeIncBasePriorityPrivilege	2648	powershell.exe
Token: SeCreatePagefilePrivilege	2648	powershell.exe
Token: SeBackupPrivilege	2648	powershell.exe
Token: SeRestorePrivilege	2648	powershell.exe
Token: SeShutdownPrivilege	2648	powershell.exe
Token: SeDebugPrivilege	2648	powershell.exe
Token: SeSystemEnvironmentPrivilege	2648	powershell.exe
Token: SeRemoteShutdownPrivilege	2648	powershell.exe
Token: SeUndockPrivilege	2648	powershell.exe
Token: SeManageVolumePrivilege	2648	powershell.exe
Token: 33	2648	powershell.exe
Token: 34	2648	powershell.exe
Token: 35	2648	powershell.exe
Token: 36	2648	powershell.exe
Token: SeDebugPrivilege	4068	powershell.exe
Token: SeIncreaseQuotaPrivilege	4068	powershell.exe
Token: SeSecurityPrivilege	4068	powershell.exe
Token: SeTakeOwnershipPrivilege	4068	powershell.exe
Token: SeLoadDriverPrivilege	4068	powershell.exe
Token: SeSystemProfilePrivilege	4068	powershell.exe
Token: SeSystemtimePrivilege	4068	powershell.exe
Token: SeProfSingleProcessPrivilege	4068	powershell.exe
Token: SeIncBasePriorityPrivilege	4068	powershell.exe
Token: SeCreatePagefilePrivilege	4068	powershell.exe
Token: SeBackupPrivilege	4068	powershell.exe
Token: SeRestorePrivilege	4068	powershell.exe
Token: SeShutdownPrivilege	4068	powershell.exe
Token: SeDebugPrivilege	4068	powershell.exe
Token: SeSystemEnvironmentPrivilege	4068	powershell.exe
Token: SeRemoteShutdownPrivilege	4068	powershell.exe
Token: SeUndockPrivilege	4068	powershell.exe
Token: SeManageVolumePrivilege	4068	powershell.exe
Token: 33	4068	powershell.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3268	batLocking.exe
3268	batLocking.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
3268	batLocking.exe
3268	batLocking.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2160	svchost.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2512 wrote to memory of 3268	2512	Discord.exe	81
PID 2512 wrote to memory of 3268	2512	Discord.exe	81
PID 2512 wrote to memory of 2160	2512	Discord.exe	83
PID 2512 wrote to memory of 2160	2512	Discord.exe	83
PID 3268 wrote to memory of 2136	3268	batLocking.exe	84
PID 3268 wrote to memory of 2136	3268	batLocking.exe	84
PID 2136 wrote to memory of 3832	2136	cmd.exe	85
PID 2136 wrote to memory of 3832	2136	cmd.exe	85
PID 2136 wrote to memory of 5112	2136	cmd.exe	86
PID 2136 wrote to memory of 5112	2136	cmd.exe	86
PID 2136 wrote to memory of 1612	2136	cmd.exe	87
PID 2136 wrote to memory of 1612	2136	cmd.exe	87
PID 3268 wrote to memory of 764	3268	batLocking.exe	89
PID 3268 wrote to memory of 764	3268	batLocking.exe	89
PID 2160 wrote to memory of 2052	2160	svchost.exe	91
PID 2160 wrote to memory of 2052	2160	svchost.exe	91
PID 2160 wrote to memory of 2648	2160	svchost.exe	94
PID 2160 wrote to memory of 2648	2160	svchost.exe	94
PID 2160 wrote to memory of 4068	2160	svchost.exe	98
PID 2160 wrote to memory of 4068	2160	svchost.exe	98
PID 2160 wrote to memory of 2476	2160	svchost.exe	101
PID 2160 wrote to memory of 2476	2160	svchost.exe	101
PID 2160 wrote to memory of 4080	2160	svchost.exe	103
PID 2160 wrote to memory of 4080	2160	svchost.exe	103
PID 3268 wrote to memory of 1976	3268	batLocking.exe	109
PID 3268 wrote to memory of 1976	3268	batLocking.exe	109
PID 3268 wrote to memory of 3080	3268	batLocking.exe	111
PID 3268 wrote to memory of 3080	3268	batLocking.exe	111

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\Discord.exe
"C:\Users\Admin\AppData\Local\Temp\Discord.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2512
- C:\Users\Admin\AppData\Roaming\batLocking.exe
  "C:\Users\Admin\AppData\Roaming\batLocking.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:3268
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c certutil -hashfile "C:\Users\Admin\AppData\Roaming\batLocking.exe" MD5 | find /i /v "md5" | find /i /v "certutil"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2136
  - - C:\Windows\system32\certutil.exe
      certutil -hashfile "C:\Users\Admin\AppData\Roaming\batLocking.exe" MD5
      4⤵
      PID:3832
  - - C:\Windows\system32\find.exe
      find /i /v "md5"
      4⤵
      PID:5112
  - - C:\Windows\system32\find.exe
      find /i /v "certutil"
      4⤵
      PID:1612
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c color 0F
    3⤵
    PID:764
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c cls
    3⤵
    PID:1976
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c cls
    3⤵
    PID:3080
- C:\Users\Admin\AppData\Roaming\svchost.exe
  "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2160
- - 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\svchost.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2052
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2648
- - 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\svchost.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4068
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    PID:2476
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\AppData\Roaming\svchost.exe"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4080

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
3KB

MD5
3eb3833f769dd890afc295b977eab4b4

SHA1
e857649b037939602c72ad003e5d3698695f436f

SHA256
c485a6e2fd17c342fca60060f47d6a5655a65a412e35e001bb5bf88d96e6e485

SHA512
c24bbc8f278478d43756807b8c584d4e3fb2289db468bc92986a489f74a8da386a667a758360a397e77e018e363be8912ac260072fa3e31117ad0599ac749e72

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
f0f59cccd39a3694e0e6dfd44d0fa76d

SHA1
fccd7911d463041e1168431df8823e4c4ea387c1

SHA256
70466c7f3a911368d653396fdd68f993322c69e1797b492ca00f8be34b7f3401

SHA512
5c726e1e28cb9c0c3ab963fbfbf471c6033839f3e535a3811581fdaa4da17175e5a8a8be84a4fccd99b81e048058e51d230ff3836e3ec920057a1b1676110bee

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
4eb1592ecfd799f8b528ca4adbbaef3e

SHA1
669179cc8407d3d7e5e30a8707379a3056ffb445

SHA256
4d94fa0280fc0b680305be8ca83344177069577a0b06cbb63f009b898e3341bc

SHA512
a3b60512ba3bb0e2d7c55e5927d548e6316a48ae1e69ef0a819550e72f023ae8b1767c6f45781e3a91e0c3c1357bc3cf344fb41f28ca89ddd13ecfee972e003e

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
aafbdb3c07cdd80320ab27b863b5437d

SHA1
6fd1dd650e6d5248d17a8400445b56dc2d59315b

SHA256
22bc5b85f76bdfbe30f699c832183f2be1985e7106b8af86f66e1a360b7a1c17

SHA512
268496f2db5b511301bb4f1088229ae94b54c905984d46c8032330020c120efe8ead7c7df214214ad34b59f039c79cec7bbaa0d6af4013d0bd99cd0f809a1f53

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_v11wqitx.e5x.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
553KB

MD5
1ddedf0e0fa01b9d7540ab120179b615

SHA1
831ff858ead130083c67dc644234493c03bd8d15

SHA256
ed36597de2bb67e1923a97bdbfe53a6cd434069950ba57a5f8d8c782f5e9a37f

SHA512
c963db2eac9836da4e629daba2a2a223b2dc6dbf4af18c5bde697f2e8e80bde7fcfe41ec676f2fc870d123819c07224631cf5d69f565477920d04f9c5279ffdd

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

Filesize
81KB

MD5
7a52b09f8b176dd42457f18c34cd37a8

SHA1
871c1eb972dbd4e6836971de12d15746c9a0abc3

SHA256
8d77f2ab3cdba5d51b0f89671e4ce907ce51eefdc2aec7d5aaeb418109f88568

SHA512
bb8a95fadfd273293cc12b0a2dc635d37fb73e39038aa06c20b542ee5ad0ae8c5ee115ffa50e9dd63aac2095f6ad0db981ffee352277ef77127c949a639faa8f

Download Submit
memory/2052-30-0x0000022CD6280000-0x0000022CD62A2000-memory.dmp

Filesize
136KB

Download
memory/2160-29-0x00007FFE060D0000-0x00007FFE06B92000-memory.dmp

Filesize
10.8MB

Download
memory/2160-27-0x0000000000070000-0x000000000008A000-memory.dmp

Filesize
104KB

Download
memory/2160-92-0x00007FFE060D0000-0x00007FFE06B92000-memory.dmp

Filesize
10.8MB

Download
memory/2512-0-0x00007FFE060D3000-0x00007FFE060D5000-memory.dmp

Filesize
8KB

Download
memory/2512-1-0x0000000000710000-0x00000000007FE000-memory.dmp

Filesize
952KB

Download