xworm | c43fa1f0bbfbb8f91d9a339b97922494bf790c6b58bf973b56836ef52a3196cd

max time kernel
67s
max time network
70s
platform
windows11-21h2_x64
resource
win11-20240426-en
resource tags

arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
submitted
03/05/2024, 18:03

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Reason

Machine shutdown

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General

Target

ent.exe
Size

44KB
MD5

211661398474b9c96a1d704823d0e552
SHA1

5afcd1a87a69ea1c84a06fdf7079660133ceb28a
SHA256

c43fa1f0bbfbb8f91d9a339b97922494bf790c6b58bf973b56836ef52a3196cd
SHA512

51717923b8d063874d5216db14adbe506826715773845c17961c5e52ed072380ea8b9b75d55559f855e6f42c35c8dd984c055eb3d1f7bec02c62463423c96666
SSDEEP

768:trlZa605WoOu+tpBERbGTHDUgkbZCfr2A33O3sh0l0E:tfq0u+tpKbAjXkbZCjjO3s60E

Score

10^/10

xworm rat trojan

Malware Config

Extracted

Family

xworm

Attributes

install_file
USB.exe
pastebin_url
https://pastebin.com/raw/XzLzRHpk

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral4/memory/3392-1-0x00000000006B0000-0x00000000006C2000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

flow	ioc
2	pastebin.com
1	pastebin.com
1	0.tcp.eu.ngrok.io

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365268"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365268"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = 99ebff004cc2ff000091f8000078d4000067c000003e9200001a6800f7630c00	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292114432"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292114432"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "118"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4290799360"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3392	ent.exe
Token: SeShutdownPrivilege	1032	shutdown.exe
Token: SeRemoteShutdownPrivilege	1032	shutdown.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
760	LogonUI.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3392 wrote to memory of 1032	3392	ent.exe	82
PID 3392 wrote to memory of 1032	3392	ent.exe	82

C:\Users\Admin\AppData\Local\Temp\ent.exe
"C:\Users\Admin\AppData\Local\Temp\ent.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3392
- C:\Windows\SYSTEM32\shutdown.exe
  shutdown.exe /f /s /t 0
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1032

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa3a19055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:760

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3392-0-0x00007FF84CE13000-0x00007FF84CE15000-memory.dmp

Filesize
8KB

Download
memory/3392-1-0x00000000006B0000-0x00000000006C2000-memory.dmp

Filesize
72KB

Download
memory/3392-2-0x00007FF84CE10000-0x00007FF84D8D2000-memory.dmp

Filesize
10.8MB

Download
memory/3392-3-0x00007FF84CE10000-0x00007FF84D8D2000-memory.dmp

Filesize
10.8MB

Download
memory/3392-4-0x0000000001030000-0x000000000103C000-memory.dmp

Filesize
48KB

Download
memory/3392-5-0x00007FF84CE10000-0x00007FF84D8D2000-memory.dmp

Filesize
10.8MB

Download

Resubmissions

Analysis