xworm | d8b679178f34fb80f50406c05dc0f2f17341700fbf50b750a4d83e22a4046e68

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06-09-2024 20:45

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General

Target

d8b679178f34fb80f50406c05dc0f2f17341700fbf50b750a4d83e22a4046e68.exe
Size

156KB
MD5

538767c78aea01e6ac60bb3bfbd258ac
SHA1

ae4fd7aa0dc4161796d2e258bb367e6a29e838cf
SHA256

d8b679178f34fb80f50406c05dc0f2f17341700fbf50b750a4d83e22a4046e68
SHA512

b5d34684af1257c682604998aa269c675ab4b3ca83549464d1837d8b38341210add72622ccfab72669843dc678b41cfa5b7eae51751e3a31a888574bfe62354c
SSDEEP

3072:AyfOMpG0R5uQtiFutjPnqJleDLxK2WTSc6K69tgmvGYDJm:/fbbRgQcvlePY2Wz0gmvlJ

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

3.1

147.185.221.22:16219

Mutex

Rxdwb8Dx86GWnKQK

Attributes

Install_directory
%AppData%
install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x000a0000000234e1-7.dat	family_xworm
behavioral2/memory/4708-15-0x0000000000690000-0x00000000006A0000-memory.dmp	family_xworm

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

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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	d8b679178f34fb80f50406c05dc0f2f17341700fbf50b750a4d83e22a4046e68.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
4708	Oxpzcdiakb.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-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Oxpzcdiakb = "C:\\Users\\Admin\\AppData\\Roaming\\Oxpzcdiakb.exe"	Oxpzcdiakb.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4708	Oxpzcdiakb.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4708	Oxpzcdiakb.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4708	Oxpzcdiakb.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 5104 wrote to memory of 4708	5104	d8b679178f34fb80f50406c05dc0f2f17341700fbf50b750a4d83e22a4046e68.exe	84
PID 5104 wrote to memory of 4708	5104	d8b679178f34fb80f50406c05dc0f2f17341700fbf50b750a4d83e22a4046e68.exe	84

C:\Users\Admin\AppData\Local\Temp\d8b679178f34fb80f50406c05dc0f2f17341700fbf50b750a4d83e22a4046e68.exe
"C:\Users\Admin\AppData\Local\Temp\d8b679178f34fb80f50406c05dc0f2f17341700fbf50b750a4d83e22a4046e68.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5104
- C:\Users\Admin\AppData\Local\Temp\Oxpzcdiakb.exe
  "C:\Users\Admin\AppData\Local\Temp\Oxpzcdiakb.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4708

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Oxpzcdiakb.exe

Filesize
35KB

MD5
cea4f74310088d7f737c775fa8524550

SHA1
bf570f8346c0ccd18cfeb5ed47ad3714234fc304

SHA256
faa7298a449b8f5c5d6851f6835f8bf65b4f348c0ac1a12b7cc84810520c6e06

SHA512
3cc29c18498d4cd430ab89bc648ab647ee3183a1443987943af4320375cfc3fca40d33f59a253ee44ab7ac73ddb51b01e11cef989806710767564c203cc3a847

Download Submit
memory/4708-15-0x0000000000690000-0x00000000006A0000-memory.dmp

Filesize
64KB

Download
memory/4708-16-0x00007FFCB11E0000-0x00007FFCB1CA1000-memory.dmp

Filesize
10.8MB

Download
memory/4708-23-0x00007FFCB11E0000-0x00007FFCB1CA1000-memory.dmp

Filesize
10.8MB

Download
memory/4708-26-0x00007FFCB11E0000-0x00007FFCB1CA1000-memory.dmp

Filesize
10.8MB

Download
memory/4708-27-0x00007FFCB11E0000-0x00007FFCB1CA1000-memory.dmp

Filesize
10.8MB

Download
memory/5104-0-0x00007FFCB11E3000-0x00007FFCB11E5000-memory.dmp

Filesize
8KB

Download
memory/5104-1-0x0000000000EF0000-0x0000000000F1E000-memory.dmp

Filesize
184KB

Download
memory/5104-2-0x00007FFCB11E0000-0x00007FFCB1CA1000-memory.dmp

Filesize
10.8MB

Download
memory/5104-24-0x00007FFCB11E3000-0x00007FFCB11E5000-memory.dmp

Filesize
8KB

Download
memory/5104-25-0x00007FFCB11E0000-0x00007FFCB1CA1000-memory.dmp

Filesize
10.8MB

Download