xworm | ebba736dfa26b559658df13cda55e2aef8cf744c05f817396ef1d3b17870a83e

Analysis

max time kernel
65s
max time network
62s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
02/01/2025, 18:25

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Builder WorldWind Pro (1).zip
Size

2.4MB
MD5

82a0e194de7cb967c13494efa4e3f3a6
SHA1

c1b8a0428538841272e57972eda61879768cfcbc
SHA256

ebba736dfa26b559658df13cda55e2aef8cf744c05f817396ef1d3b17870a83e
SHA512

60a85f906a0b9ef468b27b396683a5e5a5a762ae3f16e2a23e45b09657a984142ee68a1e92162c1ec3ab7c82c074ef8f642a5fea4bd8d53c551533b87b09b383
SSDEEP

49152:nHqaHgIuK4sLgsAhmHa7HAIkc0UOX9Hp63nfUxR:nHqaHb6Jhn3kc0UOXSnfUR

Score

10^/10

xworm discovery execution rat trojan

Malware Config

Extracted

Family

xworm

dsasinject-58214.portmap.io:3389

Attributes

Install_directory
%AppData%
install_file
svchost.exe
telegram
https://api.telegram.org/bot7023899363:AAFEzgbfWzhyE32Lf95TKSRYEYXMd4AfMyk/sendMessage?chat_id=6354844663

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/files/0x001a00000002ab17-28.dat	family_xworm
behavioral1/memory/1804-44-0x0000000000180000-0x000000000019A000-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 8 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2472	powershell.exe
4988	powershell.exe
4204	powershell.exe
3428	powershell.exe
500	powershell.exe
584	powershell.exe
240	powershell.exe
2908	powershell.exe

Drops startup file 4 IoCs

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

Executes dropped EXE 4 IoCs

pid	Process
2704	Builder WorldWind Pro‌‌.exe
2412	Builder WorldWind Pro.exe
1804	svchost.exe
2080	csrss.exe

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 1 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	Builder WorldWind Pro.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2080	csrss.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

pid	Process
4988	powershell.exe
4988	powershell.exe
4204	powershell.exe
4204	powershell.exe
3428	powershell.exe
500	powershell.exe
3428	powershell.exe
500	powershell.exe
584	powershell.exe
240	powershell.exe
584	powershell.exe
240	powershell.exe
2908	powershell.exe
2472	powershell.exe
2908	powershell.exe
2472	powershell.exe
1804	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2912	7zFM.exe

Suspicious use of AdjustPrivilegeToken 16 IoCs

description	pid	Process
Token: SeRestorePrivilege	2912	7zFM.exe
Token: 35	2912	7zFM.exe
Token: SeSecurityPrivilege	2912	7zFM.exe
Token: SeDebugPrivilege	1804	svchost.exe
Token: SeDebugPrivilege	2080	csrss.exe
Token: SeDebugPrivilege	4988	powershell.exe
Token: SeDebugPrivilege	4204	powershell.exe
Token: SeDebugPrivilege	500	powershell.exe
Token: SeDebugPrivilege	3428	powershell.exe
Token: SeDebugPrivilege	584	powershell.exe
Token: SeDebugPrivilege	240	powershell.exe
Token: SeDebugPrivilege	2908	powershell.exe
Token: SeDebugPrivilege	2472	powershell.exe
Token: SeBackupPrivilege	1664	vssvc.exe
Token: SeRestorePrivilege	1664	vssvc.exe
Token: SeAuditPrivilege	1664	vssvc.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2912	7zFM.exe
2912	7zFM.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1804	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2704 wrote to memory of 2412	2704	Builder WorldWind Pro‌‌.exe	83
PID 2704 wrote to memory of 2412	2704	Builder WorldWind Pro‌‌.exe	83
PID 2704 wrote to memory of 2412	2704	Builder WorldWind Pro‌‌.exe	83
PID 2704 wrote to memory of 1804	2704	Builder WorldWind Pro‌‌.exe	84
PID 2704 wrote to memory of 1804	2704	Builder WorldWind Pro‌‌.exe	84
PID 2704 wrote to memory of 2080	2704	Builder WorldWind Pro‌‌.exe	85
PID 2704 wrote to memory of 2080	2704	Builder WorldWind Pro‌‌.exe	85
PID 1804 wrote to memory of 4988	1804	svchost.exe	86
PID 1804 wrote to memory of 4988	1804	svchost.exe	86
PID 2080 wrote to memory of 4204	2080	csrss.exe	88
PID 2080 wrote to memory of 4204	2080	csrss.exe	88
PID 1804 wrote to memory of 3428	1804	svchost.exe	90
PID 1804 wrote to memory of 3428	1804	svchost.exe	90
PID 2080 wrote to memory of 500	2080	csrss.exe	92
PID 2080 wrote to memory of 500	2080	csrss.exe	92
PID 1804 wrote to memory of 584	1804	svchost.exe	94
PID 1804 wrote to memory of 584	1804	svchost.exe	94
PID 2080 wrote to memory of 240	2080	csrss.exe	96
PID 2080 wrote to memory of 240	2080	csrss.exe	96
PID 1804 wrote to memory of 2908	1804	svchost.exe	98
PID 1804 wrote to memory of 2908	1804	svchost.exe	98
PID 2080 wrote to memory of 2472	2080	csrss.exe	100
PID 2080 wrote to memory of 2472	2080	csrss.exe	100

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Program Files\7-Zip\7zFM.exe
"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\Builder WorldWind Pro (1).zip"
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:2912

C:\Users\Admin\Desktop\Builder WorldWind Pro‌‌.exe
"C:\Users\Admin\Desktop\Builder WorldWind Pro‌‌.exe"
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2704
- C:\Users\Admin\Desktop\Builder WorldWind Pro.exe
  "C:\Users\Admin\Desktop\Builder WorldWind Pro.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2412
- C:\Users\Admin\AppData\Roaming\svchost.exe
  "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1804
- - 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:4988
- - 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:3428
- - 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:584
- - 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:2908
- C:\ProgramData\csrss.exe
  "C:\ProgramData\csrss.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2080
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\csrss.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4204
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'csrss.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:500
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\csrss.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:240
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'csrss.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2472

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1664

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

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\csrss.exe

Filesize
28KB

MD5
4d250bcbc14b9b2076b4c651ee3b7deb

SHA1
f5cd7173e1797f085b2da82cfa3729e0144bc16b

SHA256
41a2f2ca1bdf22fcef635dba5bfd267d32c432aa2f9f00c1574465712d7a5260

SHA512
3c3ef5bf7ce6490864256c779493275710645b8cd6087e982b9f49cf1b76f35d1f38799e2641ba5bad00d616aac1eead7b922630795eb88d4a398964365007a2

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

Filesize
2KB

MD5
627073ee3ca9676911bee35548eff2b8

SHA1
4c4b68c65e2cab9864b51167d710aa29ebdcff2e

SHA256
85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

SHA512
3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

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

Filesize
944B

MD5
64497dba662bee5d7ae7a3c76a72ed88

SHA1
edc027042b9983f13d074ba9eed8b78e55e4152e

SHA256
ca69ebbd2c9c185f0647fb2122d7a26e7d23af06a1950fb25ac327d869687b47

SHA512
25da69ec86ba0df6c7da60f722cc2919c59c91f2bb03137e0e87771936e5271522d48eef98030a0da41f7a707d82221d35fb016f8bb9a294e87be114adbe3522

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

Filesize
944B

MD5
add8670715a08a3924920cb86fef8852

SHA1
5a21cec9bfe3dfe8d96b5c270d96a43a67cb7fff

SHA256
143fcf85fa3e809e16e2cd75353bc18da45762f91a621dbe7f1d4980c9aeb30e

SHA512
c6a9d2b5d7e0193d47946758988ac4a92803c6ec6753ac054e15f046c761311f762d3312f4ba043dd6e42d3a090b3ee4bf0f5ed82a53522d75c67be23235b144

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

Filesize
944B

MD5
d0a4a3b9a52b8fe3b019f6cd0ef3dad6

SHA1
fed70ce7834c3b97edbd078eccda1e5effa527cd

SHA256
21942e513f223fdad778348fbb20617dd29f986bccd87824c0ae7f15649f3f31

SHA512
1a66f837b4e7fb6346d0500aeacb44902fb8a239bce23416271263eba46fddae58a17075e188ae43eb516c841e02c87e32ebd73256c7cc2c0713d00c35f1761b

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

Filesize
944B

MD5
b0a85f07903eaad4aace8865ff28679f

SHA1
caa147464cf2e31bf9b482c3ba3c5c71951566d1

SHA256
c85c7915e0bcc6cc3d7dd2f6b9d9e4f9a3cf0ccefa043b1c500facac8428bfd5

SHA512
7a650a74a049e71b748f60614723de2b9d2385a0f404606bcb22ae807e22a74c53cf672df9e7a23605dfff37865443a5899eafea323134a818eb59c96e0f94bd

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ny2trrjs.al4.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
76KB

MD5
7c1243aac3248ae75cc2bab7bf4dfaba

SHA1
3dd055ef06380e5886f59b76761132c36e8b3e8f

SHA256
dbf81c18b8fa71de185da60a70e41f5799405e5a8331e759b399cab5353a1eda

SHA512
3f643f2ec6ca210247eab13abfb2e7e73e0f8621e137c9c1fedc3390fbd5129d78dba438988fa6cf70800def4f60cc2a320e8f269b2bfeaa63bade64c5a2bcbf

Download Submit
C:\Users\Admin\Desktop\Builder WorldWind Pro.exe

Filesize
416KB

MD5
5e503d24ca178db83e5d931990c1baa6

SHA1
4873707dde8e39da9898dd324a5912d2a30482c6

SHA256
e0e74379954acb4d9847c0cfb63e8a4028217d859c74ad97b40504627277d16b

SHA512
3bd9474ee1dfc2fe2acd1c22518f10b13b938ef19fafa2fd540ca650533508f3aa66fa17cba43a70aa9eeba6b6ab4bdb5724262e869187756f5a721b38214f68

Download Submit
C:\Users\Admin\Desktop\Builder WorldWind Pro‌‌.exe

Filesize
386KB

MD5
142b02b4b22c03523db3522ce6fd6b10

SHA1
836cd20f44621aeca77d7ec4253d1aa92695a40a

SHA256
aac53980d79ea8fd1358d7b6b29a0693e71bf8ad936b91d06e953e6855aab1e6

SHA512
849dae7774ebd950482c6a2c10000411932221ddbe4f72f266a3fd9c457894ca185214841e9de91680eb5781831ff7fcb018e9810ff81b3f616f0c45fc5eee23

Download Submit
memory/1804-44-0x0000000000180000-0x000000000019A000-memory.dmp

Filesize
104KB

Download
memory/2080-46-0x0000000000EB0000-0x0000000000EBE000-memory.dmp

Filesize
56KB

Download
memory/2412-47-0x0000000000C50000-0x0000000000CBE000-memory.dmp

Filesize
440KB

Download
memory/2412-50-0x00000000058B0000-0x0000000005942000-memory.dmp

Filesize
584KB

Download
memory/2412-52-0x0000000005AA0000-0x0000000005AF6000-memory.dmp

Filesize
344KB

Download
memory/2412-51-0x0000000005830000-0x000000000583A000-memory.dmp

Filesize
40KB

Download
memory/2412-49-0x0000000005E30000-0x00000000063D6000-memory.dmp

Filesize
5.6MB

Download
memory/2412-48-0x0000000005730000-0x00000000057CC000-memory.dmp

Filesize
624KB

Download
memory/2704-45-0x00007FFC567D0000-0x00007FFC57292000-memory.dmp

Filesize
10.8MB

Download
memory/2704-8-0x00007FFC567D0000-0x00007FFC57292000-memory.dmp

Filesize
10.8MB

Download
memory/2704-5-0x0000000000B60000-0x0000000000BC6000-memory.dmp

Filesize
408KB

Download
memory/2704-4-0x00007FFC567D3000-0x00007FFC567D5000-memory.dmp

Filesize
8KB

Download
memory/4988-58-0x000001E5E5CE0000-0x000001E5E5D02000-memory.dmp

Filesize
136KB

Download