xworm | ebba736dfa26b559658df13cda55e2aef8cf744c05f817396ef1d3b17870a83e

Analysis

max time kernel
137s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-01-2025 18:28

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General

Target

Builder WorldWind Pro‌‌.exe
Size

386KB
MD5

142b02b4b22c03523db3522ce6fd6b10
SHA1

836cd20f44621aeca77d7ec4253d1aa92695a40a
SHA256

aac53980d79ea8fd1358d7b6b29a0693e71bf8ad936b91d06e953e6855aab1e6
SHA512

849dae7774ebd950482c6a2c10000411932221ddbe4f72f266a3fd9c457894ca185214841e9de91680eb5781831ff7fcb018e9810ff81b3f616f0c45fc5eee23
SSDEEP

6144:1HuW1RSlFXGcf2PqLtrLG3LN8MoJJEvHaY+42R6pLTcDaWfCG1kDuf:1OWzSlFD+ItrkhoD2aKpLlWfCGqi

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
behavioral2/files/0x000800000001e104-18.dat	family_xworm
behavioral2/memory/4492-40-0x0000000000250000-0x000000000026A000-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
3836	powershell.exe
912	powershell.exe
1728	powershell.exe
3616	powershell.exe
3636	powershell.exe
4800	powershell.exe
3244	powershell.exe
3796	powershell.exe

Checks computer location settings 2 TTPs 3 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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	Builder WorldWind Pro‌‌.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	svchost.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	csrss.exe

Drops startup file 4 IoCs

description	ioc	Process
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
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

Executes dropped EXE 3 IoCs

pid	Process
3276	Builder WorldWind Pro.exe
4492	svchost.exe
2356	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
2356	csrss.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

pid	Process
3616	powershell.exe
3616	powershell.exe
3636	powershell.exe
3636	powershell.exe
4800	powershell.exe
3244	powershell.exe
3244	powershell.exe
4800	powershell.exe
3796	powershell.exe
3836	powershell.exe
3836	powershell.exe
3796	powershell.exe
912	powershell.exe
912	powershell.exe
1728	powershell.exe
1728	powershell.exe
4492	svchost.exe

Suspicious use of AdjustPrivilegeToken 13 IoCs

description	pid	Process
Token: SeDebugPrivilege	4492	svchost.exe
Token: SeDebugPrivilege	2356	csrss.exe
Token: SeDebugPrivilege	3616	powershell.exe
Token: SeDebugPrivilege	3636	powershell.exe
Token: SeDebugPrivilege	4800	powershell.exe
Token: SeDebugPrivilege	3244	powershell.exe
Token: SeDebugPrivilege	3796	powershell.exe
Token: SeDebugPrivilege	3836	powershell.exe
Token: SeDebugPrivilege	912	powershell.exe
Token: SeDebugPrivilege	1728	powershell.exe
Token: SeBackupPrivilege	4564	vssvc.exe
Token: SeRestorePrivilege	4564	vssvc.exe
Token: SeAuditPrivilege	4564	vssvc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4492	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 736 wrote to memory of 3276	736	Builder WorldWind Pro‌‌.exe	83
PID 736 wrote to memory of 3276	736	Builder WorldWind Pro‌‌.exe	83
PID 736 wrote to memory of 3276	736	Builder WorldWind Pro‌‌.exe	83
PID 736 wrote to memory of 4492	736	Builder WorldWind Pro‌‌.exe	84
PID 736 wrote to memory of 4492	736	Builder WorldWind Pro‌‌.exe	84
PID 736 wrote to memory of 2356	736	Builder WorldWind Pro‌‌.exe	85
PID 736 wrote to memory of 2356	736	Builder WorldWind Pro‌‌.exe	85
PID 4492 wrote to memory of 3616	4492	svchost.exe	86
PID 4492 wrote to memory of 3616	4492	svchost.exe	86
PID 2356 wrote to memory of 3636	2356	csrss.exe	88
PID 2356 wrote to memory of 3636	2356	csrss.exe	88
PID 4492 wrote to memory of 4800	4492	svchost.exe	90
PID 4492 wrote to memory of 4800	4492	svchost.exe	90
PID 2356 wrote to memory of 3244	2356	csrss.exe	92
PID 2356 wrote to memory of 3244	2356	csrss.exe	92
PID 2356 wrote to memory of 3796	2356	csrss.exe	94
PID 2356 wrote to memory of 3796	2356	csrss.exe	94
PID 4492 wrote to memory of 3836	4492	svchost.exe	95
PID 4492 wrote to memory of 3836	4492	svchost.exe	95
PID 4492 wrote to memory of 912	4492	svchost.exe	98
PID 4492 wrote to memory of 912	4492	svchost.exe	98
PID 2356 wrote to memory of 1728	2356	csrss.exe	100
PID 2356 wrote to memory of 1728	2356	csrss.exe	100

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

C:\Users\Admin\AppData\Local\Temp\Builder WorldWind Pro‌‌.exe
"C:\Users\Admin\AppData\Local\Temp\Builder WorldWind Pro‌‌.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:736
- C:\Users\Admin\AppData\Local\Temp\Builder WorldWind Pro.exe
  "C:\Users\Admin\AppData\Local\Temp\Builder WorldWind Pro.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3276
- 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
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4492
- - 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:3616
- - 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:4800
- - 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:3836
- - 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:912
- C:\ProgramData\csrss.exe
  "C:\ProgramData\csrss.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2356
- - 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:3636
- - 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:3244
- - 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:3796
- - 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:1728

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4564

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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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
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

Filesize
944B

MD5
d65ebc84c6b0b52901fb46f5e2b83ab5

SHA1
d036a0c3eb9e1616d0f7f5ca41171060c13a3095

SHA256
d45581b0807a0d04a70ec75e3e4575e73f148e5b4e0d3d325dfbd6400a4bfbd1

SHA512
88ac232e7702ebd53788cf8429d266ae367111bfccf4bc9d40ead25b552347521458ca60d320e2775b5d2edcaf8501251cb2db68b38dc000ac50463fb80865be

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

Filesize
944B

MD5
34f595487e6bfd1d11c7de88ee50356a

SHA1
4caad088c15766cc0fa1f42009260e9a02f953bb

SHA256
0f9a4b52e01cb051052228a55d0515911b7ef5a8db3cf925528c746df511424d

SHA512
10976c5deaf9fac449e703e852c3b08d099f430de2d7c7b8e2525c35d63e28b890e5aab63feff9b20bca0aaf9f35a3ba411aee3fbeee9ea59f90ed25bd617a0b

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

Filesize
944B

MD5
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
944B

MD5
47605a4dda32c9dff09a9ca441417339

SHA1
4f68c895c35b0dc36257fc8251e70b968c560b62

SHA256
e6254c2bc9846a76a4567ab91b6eae76e937307ff9301b65d577ffe6e15fe40a

SHA512
b6823b6e794a2fe3e4c4ecfb3f0d61a54821de7feb4f9e3e7fd463e7fbb5e6848f59865b487dafebeac431e4f4db81ef56836d94cac67da39852c566ed34a885

Download Submit
C:\Users\Admin\AppData\Local\Temp\Builder WorldWind Pro.exe

Filesize
416KB

MD5
5e503d24ca178db83e5d931990c1baa6

SHA1
4873707dde8e39da9898dd324a5912d2a30482c6

SHA256
e0e74379954acb4d9847c0cfb63e8a4028217d859c74ad97b40504627277d16b

SHA512
3bd9474ee1dfc2fe2acd1c22518f10b13b938ef19fafa2fd540ca650533508f3aa66fa17cba43a70aa9eeba6b6ab4bdb5724262e869187756f5a721b38214f68

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rbqrjrsg.djl.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
memory/736-42-0x00007FFF759D0000-0x00007FFF76491000-memory.dmp

Filesize
10.8MB

Download
memory/736-1-0x0000000000BF0000-0x0000000000C56000-memory.dmp

Filesize
408KB

Download
memory/736-4-0x00007FFF759D0000-0x00007FFF76491000-memory.dmp

Filesize
10.8MB

Download
memory/736-0-0x00007FFF759D3000-0x00007FFF759D5000-memory.dmp

Filesize
8KB

Download
memory/2356-144-0x00007FFF759D0000-0x00007FFF76491000-memory.dmp

Filesize
10.8MB

Download
memory/2356-44-0x00007FFF759D0000-0x00007FFF76491000-memory.dmp

Filesize
10.8MB

Download
memory/2356-41-0x0000000000F00000-0x0000000000F0E000-memory.dmp

Filesize
56KB

Download
memory/3276-50-0x0000000005050000-0x00000000050A6000-memory.dmp

Filesize
344KB

Download
memory/3276-49-0x0000000004CA0000-0x0000000004CAA000-memory.dmp

Filesize
40KB

Download
memory/3276-48-0x0000000004D20000-0x0000000004DB2000-memory.dmp

Filesize
584KB

Download
memory/3276-47-0x0000000005810000-0x0000000005DB4000-memory.dmp

Filesize
5.6MB

Download
memory/3276-46-0x0000000004B60000-0x0000000004BFC000-memory.dmp

Filesize
624KB

Download
memory/3276-45-0x00000000002C0000-0x000000000032E000-memory.dmp

Filesize
440KB

Download
memory/3616-60-0x000001BD6AA50000-0x000001BD6AA72000-memory.dmp

Filesize
136KB

Download
memory/4492-40-0x0000000000250000-0x000000000026A000-memory.dmp

Filesize
104KB

Download
memory/4492-143-0x00007FFF759D0000-0x00007FFF76491000-memory.dmp

Filesize
10.8MB

Download
memory/4492-43-0x00007FFF759D0000-0x00007FFF76491000-memory.dmp

Filesize
10.8MB

Download