xworm | c54762e7cfed04c23c765dd85ea5e92fcdc30e34d5ff3b151595e73e50e95c03

General

Target

Perm-spofer.exe
Size

68KB
MD5

7214f6d7b7997cbfb22a9b3e6375b918
SHA1

a9c53eb43e7b0eb1cfc0bc4714bc3816274310d9
SHA256

c54762e7cfed04c23c765dd85ea5e92fcdc30e34d5ff3b151595e73e50e95c03
SHA512

dc40ea0a445f2fd5a7c0e9a90d391d72267d02bc004af57f494e52e492d02de196c06d7335971868e55b0a8b18bc640b89f2c56837194c79227f5a48c9e8a223
SSDEEP

1536:fVNtqrwwjZ2v5yNL0c+A4qvbWWEHLhASFtx6aMrTeOg54WER:fBzByNnP4qvbWWAASbaKOg54j

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

simply-exotic.gl.at.ply.gg:27183

Attributes

Install_directory
%Temp%
install_file
USB.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/memory/1452-1-0x0000000000BD0000-0x0000000000BE8000-memory.dmp	family_xworm
behavioral1/files/0x002300000002aa7c-53.dat	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
2856	powershell.exe
4936	powershell.exe
5104	powershell.exe
3872	powershell.exe

Executes dropped EXE 1 IoCs

pid	Process
4788	User

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-1-5-21-556537508-2730415644-482548075-1000\Software\Microsoft\Windows\CurrentVersion\Run\User = "C:\\Users\\Admin\\AppData\\Local\\Temp\\User"	Perm-spofer.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
1	ip-api.com

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
2784	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2856	powershell.exe
2856	powershell.exe
4936	powershell.exe
4936	powershell.exe
5104	powershell.exe
5104	powershell.exe
3872	powershell.exe
3872	powershell.exe
1452	Perm-spofer.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	1452	Perm-spofer.exe
Token: SeDebugPrivilege	2856	powershell.exe
Token: SeDebugPrivilege	4936	powershell.exe
Token: SeDebugPrivilege	5104	powershell.exe
Token: SeDebugPrivilege	3872	powershell.exe
Token: SeDebugPrivilege	1452	Perm-spofer.exe
Token: SeDebugPrivilege	4788	User

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1452	Perm-spofer.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1452 wrote to memory of 2856	1452	Perm-spofer.exe	78
PID 1452 wrote to memory of 2856	1452	Perm-spofer.exe	78
PID 1452 wrote to memory of 4936	1452	Perm-spofer.exe	80
PID 1452 wrote to memory of 4936	1452	Perm-spofer.exe	80
PID 1452 wrote to memory of 5104	1452	Perm-spofer.exe	82
PID 1452 wrote to memory of 5104	1452	Perm-spofer.exe	82
PID 1452 wrote to memory of 3872	1452	Perm-spofer.exe	84
PID 1452 wrote to memory of 3872	1452	Perm-spofer.exe	84
PID 1452 wrote to memory of 2784	1452	Perm-spofer.exe	86
PID 1452 wrote to memory of 2784	1452	Perm-spofer.exe	86

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\Perm-spofer.exe
"C:\Users\Admin\AppData\Local\Temp\Perm-spofer.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1452
- 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\Perm-spofer.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2856
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Perm-spofer.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4936
- 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\User'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5104
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'User'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3872
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "User" /tr "C:\Users\Admin\AppData\Local\Temp\User"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2784

C:\Users\Admin\AppData\Local\Temp\User
C:\Users\Admin\AppData\Local\Temp\User
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4788

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

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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
6b6c7f20485e3eb78dcebc57dbffd53a

SHA1
0b74b6fd0e39ac4802b6ace079c0f818e279cb28

SHA256
79171f02cd2053089116645c69ad0bcdcf591db073ecf3b7397fac2fb6e9fb9a

SHA512
1fc966ed88e45e026ee7207c9a2deb18df65be84d0e10b03642a72b094e37b7464bfd10aa73429de51d6b70e0b2cf5b54ebc06e2263f5dd0ad023f20633b0e1d

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

Filesize
944B

MD5
cef328ddb1ee8916e7a658919323edd8

SHA1
a676234d426917535e174f85eabe4ef8b88256a5

SHA256
a1b5b7ada8ebc910f20f91ada3991d3321104e9da598c958b1edac9f9aca0e90

SHA512
747400c20ca5b5fd1b54bc24e75e6a78f15af61df263be932d2ee7b2f34731c2de8ce03b2706954fb098c1ac36f0b761cf37e418738fa91f2a8ea78572f545cb

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

Filesize
944B

MD5
c5f58404ea3cf5999bcff618ab3d3870

SHA1
76ed31ac2dcf385d892fc66e1d33ed9b1009a6d7

SHA256
925d868e9827497c7a825f0678de97d2c82d08af7ea90599d781f8bcd1a9bacb

SHA512
1e9e4f38b11878e61fd8fddb4fc5971229c9f0e74dec0ddc4eb81e269cd7b7abcc923c827d053288b23b8df13548af00712632c9dcb4ddb4a517559f05fbc2d6

Download Submit
C:\Users\Admin\AppData\Local\Temp\User

Filesize
68KB

MD5
7214f6d7b7997cbfb22a9b3e6375b918

SHA1
a9c53eb43e7b0eb1cfc0bc4714bc3816274310d9

SHA256
c54762e7cfed04c23c765dd85ea5e92fcdc30e34d5ff3b151595e73e50e95c03

SHA512
dc40ea0a445f2fd5a7c0e9a90d391d72267d02bc004af57f494e52e492d02de196c06d7335971868e55b0a8b18bc640b89f2c56837194c79227f5a48c9e8a223

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_exszzsup.pxv.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1452-1-0x0000000000BD0000-0x0000000000BE8000-memory.dmp

Filesize
96KB

Download
memory/1452-2-0x00007FFB4E590000-0x00007FFB4F052000-memory.dmp

Filesize
10.8MB

Download
memory/1452-0-0x00007FFB4E593000-0x00007FFB4E595000-memory.dmp

Filesize
8KB

Download
memory/1452-52-0x00007FFB4E590000-0x00007FFB4F052000-memory.dmp

Filesize
10.8MB

Download
memory/2856-4-0x00007FFB4E590000-0x00007FFB4F052000-memory.dmp

Filesize
10.8MB

Download
memory/2856-19-0x00007FFB4E590000-0x00007FFB4F052000-memory.dmp

Filesize
10.8MB

Download
memory/2856-16-0x00007FFB4E590000-0x00007FFB4F052000-memory.dmp

Filesize
10.8MB

Download
memory/2856-15-0x00007FFB4E590000-0x00007FFB4F052000-memory.dmp

Filesize
10.8MB

Download
memory/2856-5-0x00007FFB4E590000-0x00007FFB4F052000-memory.dmp

Filesize
10.8MB

Download
memory/2856-14-0x000001E97E140000-0x000001E97E162000-memory.dmp

Filesize
136KB

Download
memory/2856-3-0x00007FFB4E590000-0x00007FFB4F052000-memory.dmp

Filesize
10.8MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads