xworm | 6c38b37ea2e05082f0357c42d3e216d50ba4a50aaad9ca7a00a85402896e5f58

General

Target

JJsploit.exe
Size

328KB
MD5

7c85044f93d8185748d4519a3fa7a99c
SHA1

760353df28933f8c60f44dbc1f5592e47f5be99e
SHA256

6c38b37ea2e05082f0357c42d3e216d50ba4a50aaad9ca7a00a85402896e5f58
SHA512

d522d394751709904e7f44c5dfbef04814e6dc9bf0bb57716ca0058f6787c66d7be74e37c1232ac7fb165ca4e0a11861ca220cc0fef9903d411722fba19e5697
SSDEEP

3072:MrsAo+b1lo43OLx4RzsGmizgqDwyRFatcZqivp:Mrbbno48SaGRvDBTatcZv

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

23.ip.gl.ply.gg:54625

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/5828-1-0x0000000000070000-0x00000000000C8000-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 4 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2688	powershell.exe
1616	powershell.exe
248	powershell.exe
3308	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	JJsploit.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	JJsploit.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-1-5-21-2410826464-2353372766-2364966905-1000\Software\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	JJsploit.exe

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

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2088	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2688	powershell.exe
2688	powershell.exe
1616	powershell.exe
1616	powershell.exe
248	powershell.exe
248	powershell.exe
3308	powershell.exe
3308	powershell.exe
5828	JJsploit.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	5828	JJsploit.exe
Token: SeDebugPrivilege	2688	powershell.exe
Token: SeDebugPrivilege	1616	powershell.exe
Token: SeDebugPrivilege	248	powershell.exe
Token: SeDebugPrivilege	3308	powershell.exe
Token: SeDebugPrivilege	5828	JJsploit.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5828	JJsploit.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 5828 wrote to memory of 2688	5828	JJsploit.exe	80
PID 5828 wrote to memory of 2688	5828	JJsploit.exe	80
PID 5828 wrote to memory of 1616	5828	JJsploit.exe	82
PID 5828 wrote to memory of 1616	5828	JJsploit.exe	82
PID 5828 wrote to memory of 248	5828	JJsploit.exe	84
PID 5828 wrote to memory of 248	5828	JJsploit.exe	84
PID 5828 wrote to memory of 3308	5828	JJsploit.exe	86
PID 5828 wrote to memory of 3308	5828	JJsploit.exe	86
PID 5828 wrote to memory of 2088	5828	JJsploit.exe	88
PID 5828 wrote to memory of 2088	5828	JJsploit.exe	88

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\JJsploit.exe
"C:\Users\Admin\AppData\Local\Temp\JJsploit.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5828
- 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\JJsploit.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2688
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'JJsploit.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1616
- 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\Roaming\XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:248
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3308
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "XClient" /tr "C:\Users\Admin\AppData\Roaming\XClient.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2088

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
627073ee3ca9676911bee35548eff2b8

SHA1
4c4b68c65e2cab9864b51167d710aa29ebdcff2e

SHA256
85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

SHA512
3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
45f53352160cf0903c729c35c8edfdce

SHA1
b35a4d4fbaf2a3cc61e540fc03516dd70f3c34ab

SHA256
9cf18d157a858fc143a6de5c2dd3f618516a527b34478ac478d8c94ff027b0d2

SHA512
e3fa27a80a1df58acb49106c306dab22e5ed582f6b0cd7d9c3ef0a85e9f5919333257e88aa44f42a0e095fd577c9e12a02957a7845c0d109f821f32d8d3343f3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
d9fe75ae4e4c756199c5a679047e071d

SHA1
c9d380f0c5e5f43ddccf4182a476d0bd9ffbf340

SHA256
612ad7573cdb7beee36bea28c8d64fe89b3e78ca32c17215d166db2ec604a46c

SHA512
eb13e9008eb73382b01920fc39ac8891d29638084561b1ff12018de3b46d429a9ec8f54762ca9c242bc6d1a9119019099b3653a7120f99a956a7d8ee5ecc708a

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
6f0e62045515b66d0a0105abc22dbf19

SHA1
894d685122f3f3c9a3457df2f0b12b0e851b394c

SHA256
529811e4d3496c559f3bd92cd877b93b719c3ac4834202aa76ab9e16e25f9319

SHA512
f78426df6032ee77f8c463446ab1c6bb4669ef7a2463dead831ec4ff83a07d7dc702d79372d8bcaf4594bf0fb6e11e9f027f3e0325de9b19be5f51b7b80ed54a

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rt0nggq5.q1h.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2688-11-0x00007FFC2B1F0000-0x00007FFC2BCB2000-memory.dmp

Filesize
10.8MB

Download
memory/2688-13-0x00007FFC2B1F0000-0x00007FFC2BCB2000-memory.dmp

Filesize
10.8MB

Download
memory/2688-14-0x00007FFC2B1F0000-0x00007FFC2BCB2000-memory.dmp

Filesize
10.8MB

Download
memory/2688-15-0x00007FFC2B1F0000-0x00007FFC2BCB2000-memory.dmp

Filesize
10.8MB

Download
memory/2688-18-0x00007FFC2B1F0000-0x00007FFC2BCB2000-memory.dmp

Filesize
10.8MB

Download
memory/2688-12-0x000001E9570D0000-0x000001E9570F2000-memory.dmp

Filesize
136KB

Download
memory/2688-10-0x00007FFC2B1F0000-0x00007FFC2BCB2000-memory.dmp

Filesize
10.8MB

Download
memory/5828-0-0x00007FFC2B1F3000-0x00007FFC2B1F5000-memory.dmp

Filesize
8KB

Download
memory/5828-1-0x0000000000070000-0x00000000000C8000-memory.dmp

Filesize
352KB

Download
memory/5828-54-0x00007FFC2B1F0000-0x00007FFC2BCB2000-memory.dmp

Filesize
10.8MB

Download
memory/5828-55-0x00007FFC2B1F0000-0x00007FFC2BCB2000-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