xworm | bea75b57f940b13d5bfcb05a0c3ae1def9d2d25f6c3115fc7b2bf85232175672

Resubmissions

22/01/2025, 16:02

250122-tgxtpsvnfn 10

22/01/2025, 11:17

250122-nd5r9avjej 10

Analysis

max time kernel
30s
max time network
31s
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, 11:17

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

msedge.exe
Size

165KB
MD5

8c92b315d88907a31ad9eaa934a60660
SHA1

89c26c8a1f5b2db85e628a6526c9431e7febe5f8
SHA256

bea75b57f940b13d5bfcb05a0c3ae1def9d2d25f6c3115fc7b2bf85232175672
SHA512

b294fd15ac63bbd7cfd444c9df5a03c7bce8bc98d2b2d2011e5290638fba689ff083260ed60688cc4b0a0a59299dda0b1cc09ba8f63daf92efbeeaed604ebfc2
SSDEEP

3072:DJFv9ssOwjRUGKXs+S++7KFSbxeY+qDDrMm:jv9cGqStKEbxI

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

Mutex

fSptE7osVO19YSsZ

Attributes

Install_directory
%AppData%
install_file
msedge.exe
pastebin_url
https://pastebin.com/raw/eZa6J63T

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/1684-1-0x0000000000530000-0x000000000055E000-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 4 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2484	powershell.exe
3516	powershell.exe
5104	powershell.exe
3600	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-1-5-21-2826969134-2088669430-2680400721-1000\Control Panel\International\Geo\Nation	msedge.exe

Drops startup file 2 IoCs

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

Legitimate hosting services abused for malware hosting/C2 1 TTPs 9 IoCs

Web Service

T1102

flow	ioc
14	pastebin.com
17	pastebin.com
21	pastebin.com
28	pastebin.com
29	pastebin.com
15	pastebin.com
25	pastebin.com
26	pastebin.com
27	pastebin.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
64	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3516	powershell.exe
3516	powershell.exe
5104	powershell.exe
5104	powershell.exe
3600	powershell.exe
3600	powershell.exe
2484	powershell.exe
2484	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1684	msedge.exe
Token: SeDebugPrivilege	3516	powershell.exe
Token: SeIncreaseQuotaPrivilege	3516	powershell.exe
Token: SeSecurityPrivilege	3516	powershell.exe
Token: SeTakeOwnershipPrivilege	3516	powershell.exe
Token: SeLoadDriverPrivilege	3516	powershell.exe
Token: SeSystemProfilePrivilege	3516	powershell.exe
Token: SeSystemtimePrivilege	3516	powershell.exe
Token: SeProfSingleProcessPrivilege	3516	powershell.exe
Token: SeIncBasePriorityPrivilege	3516	powershell.exe
Token: SeCreatePagefilePrivilege	3516	powershell.exe
Token: SeBackupPrivilege	3516	powershell.exe
Token: SeRestorePrivilege	3516	powershell.exe
Token: SeShutdownPrivilege	3516	powershell.exe
Token: SeDebugPrivilege	3516	powershell.exe
Token: SeSystemEnvironmentPrivilege	3516	powershell.exe
Token: SeRemoteShutdownPrivilege	3516	powershell.exe
Token: SeUndockPrivilege	3516	powershell.exe
Token: SeManageVolumePrivilege	3516	powershell.exe
Token: 33	3516	powershell.exe
Token: 34	3516	powershell.exe
Token: 35	3516	powershell.exe
Token: 36	3516	powershell.exe
Token: SeDebugPrivilege	5104	powershell.exe
Token: SeIncreaseQuotaPrivilege	5104	powershell.exe
Token: SeSecurityPrivilege	5104	powershell.exe
Token: SeTakeOwnershipPrivilege	5104	powershell.exe
Token: SeLoadDriverPrivilege	5104	powershell.exe
Token: SeSystemProfilePrivilege	5104	powershell.exe
Token: SeSystemtimePrivilege	5104	powershell.exe
Token: SeProfSingleProcessPrivilege	5104	powershell.exe
Token: SeIncBasePriorityPrivilege	5104	powershell.exe
Token: SeCreatePagefilePrivilege	5104	powershell.exe
Token: SeBackupPrivilege	5104	powershell.exe
Token: SeRestorePrivilege	5104	powershell.exe
Token: SeShutdownPrivilege	5104	powershell.exe
Token: SeDebugPrivilege	5104	powershell.exe
Token: SeSystemEnvironmentPrivilege	5104	powershell.exe
Token: SeRemoteShutdownPrivilege	5104	powershell.exe
Token: SeUndockPrivilege	5104	powershell.exe
Token: SeManageVolumePrivilege	5104	powershell.exe
Token: 33	5104	powershell.exe
Token: 34	5104	powershell.exe
Token: 35	5104	powershell.exe
Token: 36	5104	powershell.exe
Token: SeDebugPrivilege	3600	powershell.exe
Token: SeIncreaseQuotaPrivilege	3600	powershell.exe
Token: SeSecurityPrivilege	3600	powershell.exe
Token: SeTakeOwnershipPrivilege	3600	powershell.exe
Token: SeLoadDriverPrivilege	3600	powershell.exe
Token: SeSystemProfilePrivilege	3600	powershell.exe
Token: SeSystemtimePrivilege	3600	powershell.exe
Token: SeProfSingleProcessPrivilege	3600	powershell.exe
Token: SeIncBasePriorityPrivilege	3600	powershell.exe
Token: SeCreatePagefilePrivilege	3600	powershell.exe
Token: SeBackupPrivilege	3600	powershell.exe
Token: SeRestorePrivilege	3600	powershell.exe
Token: SeShutdownPrivilege	3600	powershell.exe
Token: SeDebugPrivilege	3600	powershell.exe
Token: SeSystemEnvironmentPrivilege	3600	powershell.exe
Token: SeRemoteShutdownPrivilege	3600	powershell.exe
Token: SeUndockPrivilege	3600	powershell.exe
Token: SeManageVolumePrivilege	3600	powershell.exe
Token: 33	3600	powershell.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1684 wrote to memory of 3516	1684	msedge.exe	85
PID 1684 wrote to memory of 3516	1684	msedge.exe	85
PID 1684 wrote to memory of 5104	1684	msedge.exe	90
PID 1684 wrote to memory of 5104	1684	msedge.exe	90
PID 1684 wrote to memory of 3600	1684	msedge.exe	92
PID 1684 wrote to memory of 3600	1684	msedge.exe	92
PID 1684 wrote to memory of 2484	1684	msedge.exe	94
PID 1684 wrote to memory of 2484	1684	msedge.exe	94
PID 1684 wrote to memory of 64	1684	msedge.exe	97
PID 1684 wrote to memory of 64	1684	msedge.exe	97

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\msedge.exe
"C:\Users\Admin\AppData\Local\Temp\msedge.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1684
- 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\msedge.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3516
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'msedge.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5104
- 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\msedge.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3600
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'msedge.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  PID:2484
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "msedge" /tr "C:\Users\Admin\AppData\Roaming\msedge.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:64

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

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

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
014f71a6acded9d2985322a79aa49202

SHA1
622c887c223d4807b6fff00bcec733f29d3070c4

SHA256
2706f51a2e6b15845205415791c33cc03c21aaa7421c46f5651df06d81f76d19

SHA512
199dadd2b954b9f27e7290bf1f383c476ad2d93883243aa86d23408d016006ac4d39993bd3aa4b6d93a828aecafd66dd8ef431dca5d3c98b5fd86b4c96cb3a56

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

Filesize
1KB

MD5
29691aa56266b820d85d422bef115406

SHA1
a30f729d482b1fbdb9438383936c8843023f33ee

SHA256
c0104766ad7646b1ae944bcab87270b403ac7880be0462712653f1c9be87cca8

SHA512
ace1093fe6fd569deed6ac837c865c9d65ff145eae3633c8494927f14d7d755e4e0837770e22abe5d163b2b0b6f48ed2c900403548276da38854a9b40b731774

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_k1q0avpp.w15.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1684-1-0x0000000000530000-0x000000000055E000-memory.dmp

Filesize
184KB

Download
memory/1684-60-0x00007FFD1AFD0000-0x00007FFD1BA92000-memory.dmp

Filesize
10.8MB

Download
memory/1684-0-0x00007FFD1AFD3000-0x00007FFD1AFD5000-memory.dmp

Filesize
8KB

Download
memory/1684-59-0x00007FFD1AFD0000-0x00007FFD1BA92000-memory.dmp

Filesize
10.8MB

Download
memory/1684-58-0x00007FFD1AFD3000-0x00007FFD1AFD5000-memory.dmp

Filesize
8KB

Download
memory/3516-12-0x00007FFD1AFD0000-0x00007FFD1BA92000-memory.dmp

Filesize
10.8MB

Download
memory/3516-19-0x00007FFD1AFD0000-0x00007FFD1BA92000-memory.dmp

Filesize
10.8MB

Download
memory/3516-18-0x00007FFD1AFD0000-0x00007FFD1BA92000-memory.dmp

Filesize
10.8MB

Download
memory/3516-15-0x00007FFD1AFD0000-0x00007FFD1BA92000-memory.dmp

Filesize
10.8MB

Download
memory/3516-14-0x00007FFD1AFD0000-0x00007FFD1BA92000-memory.dmp

Filesize
10.8MB

Download
memory/3516-13-0x00007FFD1AFD0000-0x00007FFD1BA92000-memory.dmp

Filesize
10.8MB

Download
memory/3516-7-0x000001FE45740000-0x000001FE45762000-memory.dmp

Filesize
136KB

Download