xworm | ccaf48cc722a2f0f9766cc4e83c1469e498fc67d2f8ed96942a5764d3591050e

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22/01/2025, 16:19

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Analysis

max time kernel
62s
max time network
66s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20250113-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20250113-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
22/01/2025, 16:10

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General

Target

idk.exe
Size

94KB
MD5

f88781b7415e7b04fd13b1bbbf2009b2
SHA1

df9072bf61727db083155c04b47ce48744b23ee5
SHA256

ccaf48cc722a2f0f9766cc4e83c1469e498fc67d2f8ed96942a5764d3591050e
SHA512

6c16f8287f2f14b452025be0638fb827fa6e4a3556b21119c6195bc066d577f2c1df9a8b3f500f7e56d2b33e0552c7cbec8730bd3ac14704a6250280b1aac3db
SSDEEP

1536:BItB2JRcId+cS7K/aATFcmJi1vJYbmG0VaTCVp8tA8qbQXpPQ8Qep+MDaj361dw:CyFdDSWjB0vcL0VwCz8+8qbwPtVkOg3r

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

IDKTOBEHONESTNIGAS-56344.portmap.io:56344

Attributes

Install_directory
%LocalAppData%

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/files/0x002a0000000461b1-6.dat	family_xworm
behavioral1/memory/1160-11-0x0000000000590000-0x00000000005AA000-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 3 IoCs

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

execution

PowerShell

T1059.001

pid	Process
5000	powershell.exe
2432	powershell.exe
3048	powershell.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-3454535599-122122096-1812617400-1000\Control Panel\International\Geo\Nation	idk.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3454535599-122122096-1812617400-1000\Control Panel\International\Geo\Nation	svchost.scr

Drops startup file 2 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
1160	svchost.scr

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-1-5-21-3454535599-122122096-1812617400-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Local\\svchost.scr"	svchost.scr

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

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
1028	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
5000	powershell.exe
5000	powershell.exe
2432	powershell.exe
2432	powershell.exe
3048	powershell.exe
3048	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1160	svchost.scr
Token: SeDebugPrivilege	5000	powershell.exe
Token: SeIncreaseQuotaPrivilege	5000	powershell.exe
Token: SeSecurityPrivilege	5000	powershell.exe
Token: SeTakeOwnershipPrivilege	5000	powershell.exe
Token: SeLoadDriverPrivilege	5000	powershell.exe
Token: SeSystemProfilePrivilege	5000	powershell.exe
Token: SeSystemtimePrivilege	5000	powershell.exe
Token: SeProfSingleProcessPrivilege	5000	powershell.exe
Token: SeIncBasePriorityPrivilege	5000	powershell.exe
Token: SeCreatePagefilePrivilege	5000	powershell.exe
Token: SeBackupPrivilege	5000	powershell.exe
Token: SeRestorePrivilege	5000	powershell.exe
Token: SeShutdownPrivilege	5000	powershell.exe
Token: SeDebugPrivilege	5000	powershell.exe
Token: SeSystemEnvironmentPrivilege	5000	powershell.exe
Token: SeRemoteShutdownPrivilege	5000	powershell.exe
Token: SeUndockPrivilege	5000	powershell.exe
Token: SeManageVolumePrivilege	5000	powershell.exe
Token: 33	5000	powershell.exe
Token: 34	5000	powershell.exe
Token: 35	5000	powershell.exe
Token: 36	5000	powershell.exe
Token: SeDebugPrivilege	2432	powershell.exe
Token: SeIncreaseQuotaPrivilege	2432	powershell.exe
Token: SeSecurityPrivilege	2432	powershell.exe
Token: SeTakeOwnershipPrivilege	2432	powershell.exe
Token: SeLoadDriverPrivilege	2432	powershell.exe
Token: SeSystemProfilePrivilege	2432	powershell.exe
Token: SeSystemtimePrivilege	2432	powershell.exe
Token: SeProfSingleProcessPrivilege	2432	powershell.exe
Token: SeIncBasePriorityPrivilege	2432	powershell.exe
Token: SeCreatePagefilePrivilege	2432	powershell.exe
Token: SeBackupPrivilege	2432	powershell.exe
Token: SeRestorePrivilege	2432	powershell.exe
Token: SeShutdownPrivilege	2432	powershell.exe
Token: SeDebugPrivilege	2432	powershell.exe
Token: SeSystemEnvironmentPrivilege	2432	powershell.exe
Token: SeRemoteShutdownPrivilege	2432	powershell.exe
Token: SeUndockPrivilege	2432	powershell.exe
Token: SeManageVolumePrivilege	2432	powershell.exe
Token: 33	2432	powershell.exe
Token: 34	2432	powershell.exe
Token: 35	2432	powershell.exe
Token: 36	2432	powershell.exe
Token: SeDebugPrivilege	3048	powershell.exe
Token: SeIncreaseQuotaPrivilege	3048	powershell.exe
Token: SeSecurityPrivilege	3048	powershell.exe
Token: SeTakeOwnershipPrivilege	3048	powershell.exe
Token: SeLoadDriverPrivilege	3048	powershell.exe
Token: SeSystemProfilePrivilege	3048	powershell.exe
Token: SeSystemtimePrivilege	3048	powershell.exe
Token: SeProfSingleProcessPrivilege	3048	powershell.exe
Token: SeIncBasePriorityPrivilege	3048	powershell.exe
Token: SeCreatePagefilePrivilege	3048	powershell.exe
Token: SeBackupPrivilege	3048	powershell.exe
Token: SeRestorePrivilege	3048	powershell.exe
Token: SeShutdownPrivilege	3048	powershell.exe
Token: SeDebugPrivilege	3048	powershell.exe
Token: SeSystemEnvironmentPrivilege	3048	powershell.exe
Token: SeRemoteShutdownPrivilege	3048	powershell.exe
Token: SeUndockPrivilege	3048	powershell.exe
Token: SeManageVolumePrivilege	3048	powershell.exe
Token: 33	3048	powershell.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2892 wrote to memory of 1160	2892	idk.exe	81
PID 2892 wrote to memory of 1160	2892	idk.exe	81
PID 1160 wrote to memory of 5000	1160	svchost.scr	86
PID 1160 wrote to memory of 5000	1160	svchost.scr	86
PID 1160 wrote to memory of 2432	1160	svchost.scr	90
PID 1160 wrote to memory of 2432	1160	svchost.scr	90
PID 1160 wrote to memory of 3048	1160	svchost.scr	92
PID 1160 wrote to memory of 3048	1160	svchost.scr	92
PID 1160 wrote to memory of 1028	1160	svchost.scr	95
PID 1160 wrote to memory of 1028	1160	svchost.scr	95

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\idk.exe
"C:\Users\Admin\AppData\Local\Temp\idk.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2892
- C:\Users\Admin\AppData\Roaming\svchost.scr
  "C:\Users\Admin\AppData\Roaming\svchost.scr" /S
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1160
- - 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.scr'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:5000
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.scr'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2432
- - 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\svchost.scr'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3048
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\AppData\Local\svchost.scr"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:1028

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\New Text Document.txt
1⤵
PID:2648

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
3KB

MD5
b9cd68b5f314b5190f27a211d3506df0

SHA1
60c891d9a3c857fda4b75576420a54d38054c544

SHA256
8908f5cb47ad8627c2af37f08e4f42734cb8dd761734d27fb7745ca522e0018e

SHA512
1565a76680cf17ec9426dacab318124ff6374243e19550616069cd1a6149f356bb6f90ea524fbddce2082631be85831d5cb3a118d53c2c15c82096100b5b6182

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

Filesize
1KB

MD5
afbe17edbe24a5dc9232448dc6af0473

SHA1
a0c590634f0fea9e7d695e48f81f9f8df5c3241c

SHA256
fd12da9190f5462d577f2da09c75a62f480edc92cd81f9a31746929464d5d794

SHA512
78ff509839ec2047b7ddacbec3755ecc7d3f9002a886ada3f3fa02afe06c4c0e0cae0c385893fdeaf48d22c5904f74783936010014a50310e0895050c0aa57ab

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

Filesize
1KB

MD5
61d3041ee4a5b61df98145d9d2cdd603

SHA1
114be44a52f4ef601419fe6c263f1986c38e87fd

SHA256
69407efa02fcc993b202e147192fa3448996a8998d11150d9a613e0719266bca

SHA512
dfd778377868d40d1710e2d79092e44731458af2dac8bd7664ec053e98b30613310406ef6306d207eba34031f6f9abf490093dbffd1e9f37dde72c74b00ae8d8

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_moq00fbu.p3m.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
79KB

MD5
0b192c8ec04f4dcd360957eb478221d2

SHA1
522a5c7336a31c23efec4b8ccab7ce7c17d620d4

SHA256
ea6a26539f74891663a03fc3cf348ef53c14295ef3662b9a29b211a8d0503e1c

SHA512
7d5dd7c9aca799a8dc15eea9bf767ca6c7e2145ad848d2b2cefb3548cffb30bbbb3e3933aac7c602e4a1b5f02e14e46b7edbcc3945e1aa2e3cc6219941e90eb6

Download Submit
memory/1160-12-0x00007FFD63170000-0x00007FFD63C32000-memory.dmp

Filesize
10.8MB

Download
memory/1160-13-0x00007FFD63170000-0x00007FFD63C32000-memory.dmp

Filesize
10.8MB

Download
memory/1160-11-0x0000000000590000-0x00000000005AA000-memory.dmp

Filesize
104KB

Download
memory/1160-56-0x00007FFD63170000-0x00007FFD63C32000-memory.dmp

Filesize
10.8MB

Download
memory/1160-57-0x00007FFD63170000-0x00007FFD63C32000-memory.dmp

Filesize
10.8MB

Download
memory/2892-0-0x00007FFD63173000-0x00007FFD63175000-memory.dmp

Filesize
8KB

Download
memory/2892-1-0x0000000000990000-0x00000000009AE000-memory.dmp

Filesize
120KB

Download
memory/5000-23-0x0000017049EF0000-0x0000017049F12000-memory.dmp

Filesize
136KB

Download