xworm | 8fd923fdc56266a3739f8ca0cdcbb97973cf7c84e1585eed90faf80e0a03d670

Analysis

max time kernel
127s
max time network
140s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
22/01/2024, 19:34

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General

Target

XClient.exe
Size

34KB
MD5

fefcb4063d5fa6b6f7e18df15d898a4b
SHA1

191fa40f80347e5a7d359e2a7c1e7e896e13b8f8
SHA256

8fd923fdc56266a3739f8ca0cdcbb97973cf7c84e1585eed90faf80e0a03d670
SHA512

ccc402ac3b99b590b543103291eb12737d3aff1fbced9b29cc174cdacbc35e646b09d41a23d3d35b0316b9443a0533abcfa391578fedaea5a92e55dca3fb5f90
SSDEEP

768:sWHqIHRXYauPNhzIgtoFj9Fy9YkROjhR/dcU:sWhxX9u0gtoPFy9YQOj71cU

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

brazzers7.ddns.net:9091

Mutex

kaRc2zySHJ0ZFYY2

Attributes

Install_directory
%AppData%
install_file
vray.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2288-0-0x0000000000E80000-0x0000000000E8E000-memory.dmp	family_xworm

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

Drops startup file 2 IoCs

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

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-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\vray = "C:\\Users\\Admin\\AppData\\Roaming\\vray.exe"	XClient.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2288	XClient.exe

C:\Users\Admin\AppData\Local\Temp\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XClient.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:2288

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2288-0-0x0000000000E80000-0x0000000000E8E000-memory.dmp

Filesize
56KB

Download
memory/2288-1-0x000007FEF5C50000-0x000007FEF663C000-memory.dmp

Filesize
9.9MB

Download
memory/2288-6-0x0000000000E00000-0x0000000000E80000-memory.dmp

Filesize
512KB

Download
memory/2288-7-0x000007FEF5C50000-0x000007FEF663C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads