xworm | b7f0df0178f49612192f96821876d7b1de06e3d7813e79527df9ce85e56e903b

Analysis

max time kernel
149s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
23/05/2026, 04:16

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
2026-05-23_f4402ee29cea3b79688eee086cf8422c_conti.exe
Size 59KB
Sample260523-ev5ddacx8l
SHA256 b7f0df0178f49612192f96821876d7b1de06e3d7813e79527df9ce85e56e903b
MD5 f4402ee29cea3b79688eee086cf8422c
SHA1 e30aeacfb079729df1d3211e5e212008926987f0
SHA512 baa997c287816ebd119ad7cc542ae2e02621a437954d6f0c8bb8a0ecee9770427826e0bbb7867ad0096bacd5523e5164cbc860307f6424342a6f1a87d249c559
SSDEEP 1536:e0hQjBUcfVX0uXKesrFcR7rhr9ZgzprAW:jhQjBUITXHqF63bZQp
TLSH
T17843F0E7A5FDB0BCC052D63D0C26238DA333F17F089E634A595422EB0E69B64AD37611
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

xworm rat trojan upx

Malware Config

Extracted

Family

xworm

Version

XWorm V5.6

nightfall-59475.portmap.host:4
10.9.222.222:4
31.57.97.169:4

Attributes

Install_directory
%Temp%
install_file
ShellHost.exe
localhost
127.0.0.1

Signatures

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

Detect Xworm Payload 3 IoCs

resource	yara_rule
behavioral2/memory/4188-1-0x00007FF7D9FB0000-0x00007FF7D9FCF000-memory.dmp	family_xworm
behavioral2/files/0x002000000002b314-4.dat	family_xworm
behavioral2/memory/4800-5-0x0000000000CD0000-0x0000000000CE6000-memory.dmp	family_xworm

Detects Windows executables referencing non-Windows User-Agents 3 IoCs

resource	yara_rule
behavioral2/memory/4188-1-0x00007FF7D9FB0000-0x00007FF7D9FCF000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/files/0x002000000002b314-4.dat	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/4800-5-0x0000000000CD0000-0x0000000000CE6000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

UPX dump on OEP (original entry point) 1 IoCs

resource	yara_rule
behavioral2/memory/4188-1-0x00007FF7D9FB0000-0x00007FF7D9FCF000-memory.dmp	UPX

Drops startup file 2 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
4800	svchost.exe

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4188-1-0x00007FF7D9FB0000-0x00007FF7D9FCF000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4800	svchost.exe
Token: SeDebugPrivilege	4800	svchost.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4188 wrote to memory of 4800	4188	2026-05-23_f4402ee29cea3b79688eee086cf8422c_conti.exe	80

C:\Users\Admin\AppData\Local\Temp\2026-05-23_f4402ee29cea3b79688eee086cf8422c_conti.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-23_f4402ee29cea3b79688eee086cf8422c_conti.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4188
- C:\ProgramData\WindowsUpdate\svchost.exe
  "C:\ProgramData\WindowsUpdate\svchost.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:4800

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

svchost.exe

Path C:\ProgramData\WindowsUpdate\svchost.exe
Size 66KB
SHA256 83c6dd2dc54900d749a9903e5e7776e547fd9f517d7a12a8e29ca63a31ac3960
MD5 58d8e590465320689826452bae138588
SHA1 4a121310ac0853188447252fb98568b029444e8d
SHA512 97b41d52eed49b693eca9fe7606f0c49b9f41b4f45d741b7d8db168f216d1063bd02a7790c2ec54135120d21b550d235eae77590d7f6ba18628720d1d65e2ac5
SSDEEP 1536:ZGwWvclhlYHokHugPjxi16kbeZiO2RpvQkQOdtf60nFt:OK+NPjwkkbe38hQObf9Ft
TLSH
T107636C187BE10125F1FFAFF46DE17266CA79F3222913965F14C901860613ACACE926F9
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4188-1-0x00007FF7D9FB0000-0x00007FF7D9FCF000-memory.dmp

Download

memory/4800-5-0x0000000000CD0000-0x0000000000CE6000-memory.dmp