xworm | 041b2ea848079aab1e0b6bd1a6cf2a89e005b88b8ec2186c349f9f2a8ef0c08c

Analysis

max time kernel
146s
max time network
164s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
01-07-2024 04:10

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General

Target

542ddd41bf8603c95458d6c2c15e1a0cff107fbabac55b69b92bd40fd8bf1696.exe
Size

2.1MB
MD5

f6a8c9894f707a594a924f4c197f0f2a
SHA1

a6cd353fe512a4f1c6d74064979f4475c574ddd7
SHA256

542ddd41bf8603c95458d6c2c15e1a0cff107fbabac55b69b92bd40fd8bf1696
SHA512

a9e8a3d1705b7f95944a406f7639c07497ae50b9a11b9f77304bcb1d33cda4f3a05c831b47206d153da7c7d9eae22b84e0a17b9aae0ee1f36784acf4b63951b4
SSDEEP

49152:jF50a6aPVOFMx3SmroCZscivbS6mqxEWoKmqZJffp3vSsqPUWeaw1GmNOm/:XroA7PDa

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

twart.myfirewall.org:59012

Mutex

gOdjUs2unoOU0NeI

Attributes

Install_directory
%AppData%
install_file
windows.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

Processes:

resource yara_rule

behavioral2/memory/468-0-0x0000000000400000-0x000000000040E000-memory.dmp family_xworm
Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

resource	yara_rule
behavioral2/memory/468-0-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm

Drops startup file 2 IoCs

Processes:

regsvcs.exe

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

regsvcs.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3169499791-3545231813-3156325206-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\windows = "C:\\Users\\Admin\\AppData\\Roaming\\windows.exe"	regsvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

542ddd41bf8603c95458d6c2c15e1a0cff107fbabac55b69b92bd40fd8bf1696.exe

description pid process target process

PID 4872 set thread context of 468 4872 542ddd41bf8603c95458d6c2c15e1a0cff107fbabac55b69b92bd40fd8bf1696.exe regsvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

regsvcs.exe

description pid process

Token: SeDebugPrivilege 468 regsvcs.exe

description	pid	process	target process
PID 4872 set thread context of 468	4872	542ddd41bf8603c95458d6c2c15e1a0cff107fbabac55b69b92bd40fd8bf1696.exe	regsvcs.exe

description	pid	process
Token: SeDebugPrivilege	468	regsvcs.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

542ddd41bf8603c95458d6c2c15e1a0cff107fbabac55b69b92bd40fd8bf1696.exe

description	pid	process	target process
PID 4872 wrote to memory of 468	4872	542ddd41bf8603c95458d6c2c15e1a0cff107fbabac55b69b92bd40fd8bf1696.exe	regsvcs.exe
PID 4872 wrote to memory of 468	4872	542ddd41bf8603c95458d6c2c15e1a0cff107fbabac55b69b92bd40fd8bf1696.exe	regsvcs.exe
PID 4872 wrote to memory of 468	4872	542ddd41bf8603c95458d6c2c15e1a0cff107fbabac55b69b92bd40fd8bf1696.exe	regsvcs.exe
PID 4872 wrote to memory of 468	4872	542ddd41bf8603c95458d6c2c15e1a0cff107fbabac55b69b92bd40fd8bf1696.exe	regsvcs.exe
PID 4872 wrote to memory of 468	4872	542ddd41bf8603c95458d6c2c15e1a0cff107fbabac55b69b92bd40fd8bf1696.exe	regsvcs.exe
PID 4872 wrote to memory of 468	4872	542ddd41bf8603c95458d6c2c15e1a0cff107fbabac55b69b92bd40fd8bf1696.exe	regsvcs.exe
PID 4872 wrote to memory of 468	4872	542ddd41bf8603c95458d6c2c15e1a0cff107fbabac55b69b92bd40fd8bf1696.exe	regsvcs.exe
PID 4872 wrote to memory of 468	4872	542ddd41bf8603c95458d6c2c15e1a0cff107fbabac55b69b92bd40fd8bf1696.exe	regsvcs.exe

C:\Users\Admin\AppData\Local\Temp\542ddd41bf8603c95458d6c2c15e1a0cff107fbabac55b69b92bd40fd8bf1696.exe
"C:\Users\Admin\AppData\Local\Temp\542ddd41bf8603c95458d6c2c15e1a0cff107fbabac55b69b92bd40fd8bf1696.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4872

C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe"
2⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:468

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/468-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/468-1-0x0000000074D2E000-0x0000000074D2F000-memory.dmp

Filesize
4KB

Download
memory/468-2-0x00000000051D0000-0x000000000526C000-memory.dmp

Filesize
624KB

Download
memory/468-3-0x0000000074D2E000-0x0000000074D2F000-memory.dmp

Filesize
4KB

Download
memory/468-8-0x0000000074D20000-0x00000000754D0000-memory.dmp

Filesize
7.7MB

Download
memory/468-9-0x0000000074D20000-0x00000000754D0000-memory.dmp

Filesize
7.7MB

Download