xworm | 2caf7c96d8891b799082f6406657817ec7cffd82e54d5a44d9d4f6b82ff8ea32

Analysis

max time kernel
92s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23/01/2025, 13:47

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General

Target

XWorm_V5.6/XWorm V5.6/._cache_Xworm.exe
Size

75KB
MD5

f63d6c11422e7e0ca83981e8dae62f96
SHA1

c9c6088a764b07e7d438ad603a8bfcd9972f2b06
SHA256

7ed1b4c14c9dfc97094ac40c5fb6c1fe109e4bfcbc953f2ba4331686388be531
SHA512

b4dc1037a4fa38482e355aa3f4ac8288aa926dd7c24ee5cd260b5418ebd9ba6a53ef41f3e862eaa71795a2d0b7407fc9d700ec9a224d45f4b7af1e2063f991d9
SSDEEP

1536:GMSF34nJN7Z6/hv0beO3cCv6pDZOQlW3TDsdiv:RLjE/hv0b/DmOQlW3fXv

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

simply-exotic.gl.at.ply.gg:27183

Attributes

Install_directory
%Temp%
install_file
Windows.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/452-1-0x00000000006E0000-0x00000000006FA000-memory.dmp	family_xworm
behavioral2/files/0x000b000000023d23-60.dat	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
4436	powershell.exe
4576	powershell.exe
4808	powershell.exe
988	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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	._cache_Xworm.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
4388	User

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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\User = "C:\\Users\\Admin\\AppData\\Local\\Temp\\User"	._cache_Xworm.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

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
3084	timeout.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
1920	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4436	powershell.exe
4436	powershell.exe
4576	powershell.exe
4576	powershell.exe
4808	powershell.exe
4808	powershell.exe
988	powershell.exe
988	powershell.exe
452	._cache_Xworm.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	452	._cache_Xworm.exe
Token: SeDebugPrivilege	4436	powershell.exe
Token: SeDebugPrivilege	4576	powershell.exe
Token: SeDebugPrivilege	4808	powershell.exe
Token: SeDebugPrivilege	988	powershell.exe
Token: SeDebugPrivilege	452	._cache_Xworm.exe
Token: SeDebugPrivilege	4388	User

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
452	._cache_Xworm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 452 wrote to memory of 4436	452	._cache_Xworm.exe	85
PID 452 wrote to memory of 4436	452	._cache_Xworm.exe	85
PID 452 wrote to memory of 4576	452	._cache_Xworm.exe	89
PID 452 wrote to memory of 4576	452	._cache_Xworm.exe	89
PID 452 wrote to memory of 4808	452	._cache_Xworm.exe	91
PID 452 wrote to memory of 4808	452	._cache_Xworm.exe	91
PID 452 wrote to memory of 988	452	._cache_Xworm.exe	95
PID 452 wrote to memory of 988	452	._cache_Xworm.exe	95
PID 452 wrote to memory of 1920	452	._cache_Xworm.exe	97
PID 452 wrote to memory of 1920	452	._cache_Xworm.exe	97
PID 452 wrote to memory of 4500	452	._cache_Xworm.exe	109
PID 452 wrote to memory of 4500	452	._cache_Xworm.exe	109
PID 452 wrote to memory of 1184	452	._cache_Xworm.exe	111
PID 452 wrote to memory of 1184	452	._cache_Xworm.exe	111
PID 1184 wrote to memory of 3084	1184	cmd.exe	113
PID 1184 wrote to memory of 3084	1184	cmd.exe	113

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\XWorm_V5.6\XWorm V5.6\._cache_Xworm.exe
"C:\Users\Admin\AppData\Local\Temp\XWorm_V5.6\XWorm V5.6\._cache_Xworm.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:452
- 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\XWorm_V5.6\XWorm V5.6\._cache_Xworm.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4436
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '._cache_Xworm.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4576
- 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\User'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4808
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'User'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:988
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "User" /tr "C:\Users\Admin\AppData\Local\Temp\User"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1920
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /delete /f /tn "User"
  2⤵
  PID:4500
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8FA8.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1184
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:3084

C:\Users\Admin\AppData\Local\Temp\User
C:\Users\Admin\AppData\Local\Temp\User
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4388

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
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

Filesize
944B

MD5
6d3e9c29fe44e90aae6ed30ccf799ca8

SHA1
c7974ef72264bbdf13a2793ccf1aed11bc565dce

SHA256
2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

SHA512
60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

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

Filesize
944B

MD5
e58749a7a1826f6ea62df1e2ef63a32b

SHA1
c0bca21658b8be4f37b71eec9578bfefa44f862d

SHA256
0e1f0e684adb40a5d0668df5fed007c9046137d7ae16a1f2f343b139d5f9bc93

SHA512
4cf45b2b11ab31e7f67fff286b29d50ed28cd6043091144c5c0f1348b5f5916ed7479cf985595e6f096b586ab93b4b5dce612f688049b8366a2dd91863e98b70

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

Filesize
944B

MD5
f9181f64418cae3d8eb73498c74ea2c2

SHA1
b034df207dcd05550132de526b89fc7f45e77f3a

SHA256
969ebc05f9daffc5ea9c54fa23cfa46ba967cfa4370364e8f47ed988aa0846a0

SHA512
ce0ecccdb4bed314f67e7271d1e4c86d0e4db89f3aa37755de355fecc596fc1d7c0a86e0a053dbce2db834cf5f4c382c503ed64880cb8c1ed5155ed70637865c

Download Submit
C:\Users\Admin\AppData\Local\Temp\User

Filesize
75KB

MD5
f63d6c11422e7e0ca83981e8dae62f96

SHA1
c9c6088a764b07e7d438ad603a8bfcd9972f2b06

SHA256
7ed1b4c14c9dfc97094ac40c5fb6c1fe109e4bfcbc953f2ba4331686388be531

SHA512
b4dc1037a4fa38482e355aa3f4ac8288aa926dd7c24ee5cd260b5418ebd9ba6a53ef41f3e862eaa71795a2d0b7407fc9d700ec9a224d45f4b7af1e2063f991d9

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ft3br23w.peo.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp8FA8.tmp.bat

Filesize
187B

MD5
9136e6602660132fb07f3276e6fdd6e7

SHA1
10f94348c3f8e1ca18b5e0f9969e932d70932919

SHA256
48d520d16c2bd042655a5a9c912bed01e27281d488fb8e74eac14ee4c68fd5f1

SHA512
26859a53485d7eeacd887373d0627d6ea85b1c3a71b661e2f23f264488c80ed73d4760b30bfe30b6eacfef59472cabe0bc54827ff3929a0ef587b4a920726ed5

Download Submit
memory/452-2-0x00007FFD8D480000-0x00007FFD8DF41000-memory.dmp

Filesize
10.8MB

Download
memory/452-68-0x00007FFD8D480000-0x00007FFD8DF41000-memory.dmp

Filesize
10.8MB

Download
memory/452-1-0x00000000006E0000-0x00000000006FA000-memory.dmp

Filesize
104KB

Download
memory/452-0-0x00007FFD8D483000-0x00007FFD8D485000-memory.dmp

Filesize
8KB

Download
memory/452-59-0x00007FFD8D480000-0x00007FFD8DF41000-memory.dmp

Filesize
10.8MB

Download
memory/452-58-0x00007FFD8D483000-0x00007FFD8D485000-memory.dmp

Filesize
8KB

Download
memory/4436-19-0x00007FFD8D480000-0x00007FFD8DF41000-memory.dmp

Filesize
10.8MB

Download
memory/4436-3-0x00007FFD8D480000-0x00007FFD8DF41000-memory.dmp

Filesize
10.8MB

Download
memory/4436-4-0x00007FFD8D480000-0x00007FFD8DF41000-memory.dmp

Filesize
10.8MB

Download
memory/4436-12-0x00007FFD8D480000-0x00007FFD8DF41000-memory.dmp

Filesize
10.8MB

Download
memory/4436-18-0x000002B3369C0000-0x000002B336BDC000-memory.dmp

Filesize
2.1MB

Download
memory/4436-10-0x000002B336900000-0x000002B336922000-memory.dmp

Filesize
136KB

Download
memory/4808-43-0x0000024E40180000-0x0000024E4039C000-memory.dmp

Filesize
2.1MB

Download