xworm | 20716ebe59c41a9cd923805dde46298fe40827a10be7652b1de258e556a87833

General

Target

petape.exe
Size

72KB
MD5

ec69a55b3fc572208e55c194442db2bc
SHA1

6cb591b3c96303a95bd42a60456010c60b0400e3
SHA256

20716ebe59c41a9cd923805dde46298fe40827a10be7652b1de258e556a87833
SHA512

e2991444484de2357ba5d0cd5f8c633cc0cf3469976c4f82f1b756cc97e51608c90f47d036b41f5e224636de801d91cdf1bfd07419c41aa69dd0d708b45eb154
SSDEEP

1536:Emh3s0epZ3yRnIe+bWMkJpgw+bv6rsOK8fQnrS4SSdS1EAd8IIF:EVnyRn3+b9igw0CsOPQnz5gEA6IIF

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

la-judgment.gl.at.ply.gg:62627

Attributes

Install_directory
%ProgramData%
install_file
update.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/3044-1-0x0000000000940000-0x0000000000958000-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
2340	powershell.exe
380	powershell.exe
2844	powershell.exe
2876	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\update.lnk	petape.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\update.lnk	petape.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-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Windows\CurrentVersion\Run\update = "C:\\ProgramData\\update.exe"	petape.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2340	powershell.exe
380	powershell.exe
2844	powershell.exe
2876	powershell.exe
3044	petape.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	3044	petape.exe
Token: SeDebugPrivilege	2340	powershell.exe
Token: SeDebugPrivilege	380	powershell.exe
Token: SeDebugPrivilege	2844	powershell.exe
Token: SeDebugPrivilege	2876	powershell.exe
Token: SeDebugPrivilege	3044	petape.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3044	petape.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3044 wrote to memory of 2340	3044	petape.exe	31
PID 3044 wrote to memory of 2340	3044	petape.exe	31
PID 3044 wrote to memory of 2340	3044	petape.exe	31
PID 3044 wrote to memory of 380	3044	petape.exe	33
PID 3044 wrote to memory of 380	3044	petape.exe	33
PID 3044 wrote to memory of 380	3044	petape.exe	33
PID 3044 wrote to memory of 2844	3044	petape.exe	35
PID 3044 wrote to memory of 2844	3044	petape.exe	35
PID 3044 wrote to memory of 2844	3044	petape.exe	35
PID 3044 wrote to memory of 2876	3044	petape.exe	37
PID 3044 wrote to memory of 2876	3044	petape.exe	37
PID 3044 wrote to memory of 2876	3044	petape.exe	37

C:\Users\Admin\AppData\Local\Temp\petape.exe
"C:\Users\Admin\AppData\Local\Temp\petape.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:3044
- 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\petape.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2340
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'petape.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:380
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\update.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2844
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'update.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2876

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
ac89d3a48c4754c793204f6418e35290

SHA1
5515ed700eb96d6f2dab03c9a36f455f06eb389d

SHA256
82a931d1f999eda3cdfd4b981e9635660895babcae56274d716f4f4ee393f439

SHA512
a890306b5e53f0b2b71ed0810724d68c3634a1462afdd4ba24d852e73a0b57246e2edb6965687593282963e5f637319f8667159aa225d489095f18c60dd69135

Download Submit
memory/380-14-0x000000001B720000-0x000000001BA02000-memory.dmp

Filesize
2.9MB

Download
memory/380-15-0x0000000001E10000-0x0000000001E18000-memory.dmp

Filesize
32KB

Download
memory/2340-6-0x0000000002AA0000-0x0000000002B20000-memory.dmp

Filesize
512KB

Download
memory/2340-7-0x000000001B710000-0x000000001B9F2000-memory.dmp

Filesize
2.9MB

Download
memory/2340-8-0x0000000001E80000-0x0000000001E88000-memory.dmp

Filesize
32KB

Download
memory/3044-0-0x000007FEF51A3000-0x000007FEF51A4000-memory.dmp

Filesize
4KB

Download
memory/3044-1-0x0000000000940000-0x0000000000958000-memory.dmp

Filesize
96KB

Download
memory/3044-30-0x000000001AD80000-0x000000001AE00000-memory.dmp

Filesize
512KB

Download
memory/3044-31-0x000007FEF51A3000-0x000007FEF51A4000-memory.dmp

Filesize
4KB

Download
memory/3044-32-0x000000001AD80000-0x000000001AE00000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads