xworm | ccaf48cc722a2f0f9766cc4e83c1469e498fc67d2f8ed96942a5764d3591050e

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22/01/2025, 16:19

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22/01/2025, 13:40

Analysis

max time kernel
34s
max time network
36s
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, 13:40

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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/0x00050000000456bc-6.dat	family_xworm
behavioral1/memory/6140-11-0x0000000000460000-0x000000000047A000-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
5356	powershell.exe
540	powershell.exe
5360	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-1-5-21-564748828-2201999071-3764224244-1000\Control Panel\International\Geo\Nation	idk.exe
Key value queried	\REGISTRY\USER\S-1-5-21-564748828-2201999071-3764224244-1000\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
6140	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-1-5-21-564748828-2201999071-3764224244-1000\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
3580	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
5356	powershell.exe
5356	powershell.exe
540	powershell.exe
540	powershell.exe
5360	powershell.exe
5360	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	6140	svchost.scr
Token: SeDebugPrivilege	5356	powershell.exe
Token: SeIncreaseQuotaPrivilege	5356	powershell.exe
Token: SeSecurityPrivilege	5356	powershell.exe
Token: SeTakeOwnershipPrivilege	5356	powershell.exe
Token: SeLoadDriverPrivilege	5356	powershell.exe
Token: SeSystemProfilePrivilege	5356	powershell.exe
Token: SeSystemtimePrivilege	5356	powershell.exe
Token: SeProfSingleProcessPrivilege	5356	powershell.exe
Token: SeIncBasePriorityPrivilege	5356	powershell.exe
Token: SeCreatePagefilePrivilege	5356	powershell.exe
Token: SeBackupPrivilege	5356	powershell.exe
Token: SeRestorePrivilege	5356	powershell.exe
Token: SeShutdownPrivilege	5356	powershell.exe
Token: SeDebugPrivilege	5356	powershell.exe
Token: SeSystemEnvironmentPrivilege	5356	powershell.exe
Token: SeRemoteShutdownPrivilege	5356	powershell.exe
Token: SeUndockPrivilege	5356	powershell.exe
Token: SeManageVolumePrivilege	5356	powershell.exe
Token: 33	5356	powershell.exe
Token: 34	5356	powershell.exe
Token: 35	5356	powershell.exe
Token: 36	5356	powershell.exe
Token: SeDebugPrivilege	540	powershell.exe
Token: SeIncreaseQuotaPrivilege	540	powershell.exe
Token: SeSecurityPrivilege	540	powershell.exe
Token: SeTakeOwnershipPrivilege	540	powershell.exe
Token: SeLoadDriverPrivilege	540	powershell.exe
Token: SeSystemProfilePrivilege	540	powershell.exe
Token: SeSystemtimePrivilege	540	powershell.exe
Token: SeProfSingleProcessPrivilege	540	powershell.exe
Token: SeIncBasePriorityPrivilege	540	powershell.exe
Token: SeCreatePagefilePrivilege	540	powershell.exe
Token: SeBackupPrivilege	540	powershell.exe
Token: SeRestorePrivilege	540	powershell.exe
Token: SeShutdownPrivilege	540	powershell.exe
Token: SeDebugPrivilege	540	powershell.exe
Token: SeSystemEnvironmentPrivilege	540	powershell.exe
Token: SeRemoteShutdownPrivilege	540	powershell.exe
Token: SeUndockPrivilege	540	powershell.exe
Token: SeManageVolumePrivilege	540	powershell.exe
Token: 33	540	powershell.exe
Token: 34	540	powershell.exe
Token: 35	540	powershell.exe
Token: 36	540	powershell.exe
Token: SeDebugPrivilege	5360	powershell.exe
Token: SeIncreaseQuotaPrivilege	5360	powershell.exe
Token: SeSecurityPrivilege	5360	powershell.exe
Token: SeTakeOwnershipPrivilege	5360	powershell.exe
Token: SeLoadDriverPrivilege	5360	powershell.exe
Token: SeSystemProfilePrivilege	5360	powershell.exe
Token: SeSystemtimePrivilege	5360	powershell.exe
Token: SeProfSingleProcessPrivilege	5360	powershell.exe
Token: SeIncBasePriorityPrivilege	5360	powershell.exe
Token: SeCreatePagefilePrivilege	5360	powershell.exe
Token: SeBackupPrivilege	5360	powershell.exe
Token: SeRestorePrivilege	5360	powershell.exe
Token: SeShutdownPrivilege	5360	powershell.exe
Token: SeDebugPrivilege	5360	powershell.exe
Token: SeSystemEnvironmentPrivilege	5360	powershell.exe
Token: SeRemoteShutdownPrivilege	5360	powershell.exe
Token: SeUndockPrivilege	5360	powershell.exe
Token: SeManageVolumePrivilege	5360	powershell.exe
Token: 33	5360	powershell.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 5208 wrote to memory of 6140	5208	idk.exe	82
PID 5208 wrote to memory of 6140	5208	idk.exe	82
PID 6140 wrote to memory of 5356	6140	svchost.scr	87
PID 6140 wrote to memory of 5356	6140	svchost.scr	87
PID 6140 wrote to memory of 540	6140	svchost.scr	91
PID 6140 wrote to memory of 540	6140	svchost.scr	91
PID 6140 wrote to memory of 5360	6140	svchost.scr	93
PID 6140 wrote to memory of 5360	6140	svchost.scr	93
PID 6140 wrote to memory of 3580	6140	svchost.scr	95
PID 6140 wrote to memory of 3580	6140	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:5208
- 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:6140
- - 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:5356
- - 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:540
- - 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:5360
- - 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:3580

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
3eb3833f769dd890afc295b977eab4b4

SHA1
e857649b037939602c72ad003e5d3698695f436f

SHA256
c485a6e2fd17c342fca60060f47d6a5655a65a412e35e001bb5bf88d96e6e485

SHA512
c24bbc8f278478d43756807b8c584d4e3fb2289db468bc92986a489f74a8da386a667a758360a397e77e018e363be8912ac260072fa3e31117ad0599ac749e72

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

Filesize
1KB

MD5
60b3262c3163ee3d466199160b9ed07d

SHA1
994ece4ea4e61de0be2fdd580f87e3415f9e1ff6

SHA256
e3b30f16d41f94cba2b8a75f35c91ae7418465abfbfe5477ec0551d1952b2fdb

SHA512
081d2015cb94477eb0fbc38f44b6d9b4a3204fb3ad0b7d0e146a88ab4ab9a0d475207f1adae03f4a81ccc5beb7568dc8be1249f69e32fe56efd9ee2f6ee3b1af

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

Filesize
1KB

MD5
aea5cb7f27e89fb59360d49b1a005291

SHA1
32483bba5b0cf77c9aa13139ba1c8e9397ffab75

SHA256
50a967b462520910e3283fe2b7d1d319746ae4bbc86fa02fe4a3b76c4331e161

SHA512
e3a80d49e2089bf9702ba12abc58b26a8ef26390efe6c84b687525ed3c0e30792ddd5ab3f68a22d8229caff4f542879e936e218d81237571475671095bdf1aae

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2m32adtc.he4.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/5208-1-0x0000000000F50000-0x0000000000F6E000-memory.dmp

Filesize
120KB

Download
memory/5208-0-0x00007FFEE1DF3000-0x00007FFEE1DF5000-memory.dmp

Filesize
8KB

Download
memory/5356-23-0x000001C74DB30000-0x000001C74DB52000-memory.dmp

Filesize
136KB

Download
memory/6140-13-0x00007FFEE1DF0000-0x00007FFEE28B2000-memory.dmp

Filesize
10.8MB

Download
memory/6140-12-0x00007FFEE1DF0000-0x00007FFEE28B2000-memory.dmp

Filesize
10.8MB

Download
memory/6140-11-0x0000000000460000-0x000000000047A000-memory.dmp

Filesize
104KB

Download
memory/6140-56-0x00007FFEE1DF0000-0x00007FFEE28B2000-memory.dmp

Filesize
10.8MB

Download
memory/6140-57-0x000000001C770000-0x000000001C77C000-memory.dmp

Filesize
48KB

Download