xworm | 9191db1559a20a2ad8669bd6b292d812e5dcf6bd9bd1c3cda6f19b5c7d390762

General

Target

9191db1559a20a2ad8669bd6b292d812e5dcf6bd9bd1c3cda6f19b5c7d390762.exe
Size

41KB
MD5

e2a910d4a1892763c150104344e43927
SHA1

99cb1241cd9b04ac5486fe82956655b7675c5495
SHA256

9191db1559a20a2ad8669bd6b292d812e5dcf6bd9bd1c3cda6f19b5c7d390762
SHA512

4276e4928fd984a7606d62c2c7789a491bb5489f1d54c5dea9f6ccfcfff96c50972df0f92bc0ff899d7e0e43ab0d49b287c7a6e0f2be7b5ea92059626cbcee0c
SSDEEP

768:NpCFe60PDoSVyXkcE6JYXDXDcx1DUQqiuChZNoAko4o0SO4iOth9qEhfC:HCFevvVyhE6wDsuiMA+ig09qx

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

true-dealt.gl.at.ply.gg:38186

Mutex

Vt6mABHCoQDVV8gQ

Attributes

Install_directory
%AppData%
install_file
programfile.exe

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x000f000000023b1c-25.dat	family_xworm
behavioral2/memory/3268-33-0x0000000000BD0000-0x0000000000BFA000-memory.dmp	family_xworm

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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
3420	powershell.exe

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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	9191db1559a20a2ad8669bd6b292d812e5dcf6bd9bd1c3cda6f19b5c7d390762.exe

Executes dropped EXE 1 IoCs

pid	Process
3268	programfile.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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\programfile = "C:\\Users\\Admin\\AppData\\Local\\Temp\\programfile.exe"	9191db1559a20a2ad8669bd6b292d812e5dcf6bd9bd1c3cda6f19b5c7d390762.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
15	ip-api.com

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3420	powershell.exe
3420	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3420	powershell.exe
Token: SeDebugPrivilege	3268	programfile.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1992 wrote to memory of 3420	1992	9191db1559a20a2ad8669bd6b292d812e5dcf6bd9bd1c3cda6f19b5c7d390762.exe	86
PID 1992 wrote to memory of 3420	1992	9191db1559a20a2ad8669bd6b292d812e5dcf6bd9bd1c3cda6f19b5c7d390762.exe	86
PID 1992 wrote to memory of 3268	1992	9191db1559a20a2ad8669bd6b292d812e5dcf6bd9bd1c3cda6f19b5c7d390762.exe	91
PID 1992 wrote to memory of 3268	1992	9191db1559a20a2ad8669bd6b292d812e5dcf6bd9bd1c3cda6f19b5c7d390762.exe	91

C:\Users\Admin\AppData\Local\Temp\9191db1559a20a2ad8669bd6b292d812e5dcf6bd9bd1c3cda6f19b5c7d390762.exe
"C:\Users\Admin\AppData\Local\Temp\9191db1559a20a2ad8669bd6b292d812e5dcf6bd9bd1c3cda6f19b5c7d390762.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\programfile.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3420
- C:\Users\Admin\AppData\Local\Temp\programfile.exe
  "C:\Users\Admin\AppData\Local\Temp\programfile.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:3268

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fatxdlk1.fvv.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\programfile.exe

Filesize
146KB

MD5
71adbf042f7d5cbc2115c583134841dc

SHA1
184b184d2e1896028242963b7faabbc07395cb4b

SHA256
fa38471eae291b96261c075f6dfc414cd6319e5666f43e5f0e7350d56b67a827

SHA512
79e4450e19d6dc9dc148f2e1a176dbfb9bf82d28a3496808af4ab0617d5c0d1ea0bed1b3e21426820f2ece961edd05d4eff83e364135d9c7d742991e895d029a

Download Submit
memory/1992-0-0x00007FFC27113000-0x00007FFC27115000-memory.dmp

Filesize
8KB

Download
memory/1992-1-0x0000000000B50000-0x0000000000B60000-memory.dmp

Filesize
64KB

Download
memory/1992-4-0x00007FFC27110000-0x00007FFC27BD1000-memory.dmp

Filesize
10.8MB

Download
memory/1992-34-0x00007FFC27110000-0x00007FFC27BD1000-memory.dmp

Filesize
10.8MB

Download
memory/3268-33-0x0000000000BD0000-0x0000000000BFA000-memory.dmp

Filesize
168KB

Download
memory/3420-5-0x00007FFC27110000-0x00007FFC27BD1000-memory.dmp

Filesize
10.8MB

Download
memory/3420-15-0x000001EAE4310000-0x000001EAE4332000-memory.dmp

Filesize
136KB

Download
memory/3420-16-0x00007FFC27110000-0x00007FFC27BD1000-memory.dmp

Filesize
10.8MB

Download
memory/3420-17-0x00007FFC27110000-0x00007FFC27BD1000-memory.dmp

Filesize
10.8MB

Download
memory/3420-20-0x00007FFC27110000-0x00007FFC27BD1000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads