xworm | aa6c3a8447e5177e7502c684e408c97f439fd8efb998169ceef1c7d7e7810dd7

General

Target

aa6c3a8447e5177e7502c684e408c97f439fd8efb998169ceef1c7d7e7810dd7N.exe
Size

39KB
MD5

a0cb0c4f5fed726aa8c95bbd2f230d60
SHA1

a1cdabf75a9a37ca9250337dbad3fe6c0b99d20b
SHA256

aa6c3a8447e5177e7502c684e408c97f439fd8efb998169ceef1c7d7e7810dd7
SHA512

85882fbdc65af89f0616df7c7c16e1ec826dc87ebbd3fb0eb15d8ed1f6f48a82861d07f3a702be1f07933ccb9cbf48cdd4511010b75c2541816003d1b4c56eba
SSDEEP

768:eHDw0pF163l6YhlLJKuuwhSYypufFWPa9bk6POwhwambf:QDw0pF163swVJKuuwhSjEFv9bk6POw+/

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

23.ip.gl.ply.gg:29086

Mutex

X99qeOPMKBAU6tM7

Attributes

Install_directory
%ProgramData%
install_file
System Settings Brokes.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2408-1-0x00000000008B0000-0x00000000008C0000-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
2196	powershell.exe
2616	powershell.exe
2516	powershell.exe
2936	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System Settings Brokes.lnk	aa6c3a8447e5177e7502c684e408c97f439fd8efb998169ceef1c7d7e7810dd7N.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System Settings Brokes.lnk	aa6c3a8447e5177e7502c684e408c97f439fd8efb998169ceef1c7d7e7810dd7N.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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\System Settings Brokes = "C:\\ProgramData\\System Settings Brokes.exe"	aa6c3a8447e5177e7502c684e408c97f439fd8efb998169ceef1c7d7e7810dd7N.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
2536	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2936	powershell.exe
2196	powershell.exe
2616	powershell.exe
2516	powershell.exe
2408	aa6c3a8447e5177e7502c684e408c97f439fd8efb998169ceef1c7d7e7810dd7N.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2408	aa6c3a8447e5177e7502c684e408c97f439fd8efb998169ceef1c7d7e7810dd7N.exe
Token: SeDebugPrivilege	2936	powershell.exe
Token: SeDebugPrivilege	2196	powershell.exe
Token: SeDebugPrivilege	2616	powershell.exe
Token: SeDebugPrivilege	2516	powershell.exe
Token: SeDebugPrivilege	2408	aa6c3a8447e5177e7502c684e408c97f439fd8efb998169ceef1c7d7e7810dd7N.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2408	aa6c3a8447e5177e7502c684e408c97f439fd8efb998169ceef1c7d7e7810dd7N.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2408 wrote to memory of 2936	2408	aa6c3a8447e5177e7502c684e408c97f439fd8efb998169ceef1c7d7e7810dd7N.exe	28
PID 2408 wrote to memory of 2936	2408	aa6c3a8447e5177e7502c684e408c97f439fd8efb998169ceef1c7d7e7810dd7N.exe	28
PID 2408 wrote to memory of 2936	2408	aa6c3a8447e5177e7502c684e408c97f439fd8efb998169ceef1c7d7e7810dd7N.exe	28
PID 2408 wrote to memory of 2196	2408	aa6c3a8447e5177e7502c684e408c97f439fd8efb998169ceef1c7d7e7810dd7N.exe	30
PID 2408 wrote to memory of 2196	2408	aa6c3a8447e5177e7502c684e408c97f439fd8efb998169ceef1c7d7e7810dd7N.exe	30
PID 2408 wrote to memory of 2196	2408	aa6c3a8447e5177e7502c684e408c97f439fd8efb998169ceef1c7d7e7810dd7N.exe	30
PID 2408 wrote to memory of 2616	2408	aa6c3a8447e5177e7502c684e408c97f439fd8efb998169ceef1c7d7e7810dd7N.exe	32
PID 2408 wrote to memory of 2616	2408	aa6c3a8447e5177e7502c684e408c97f439fd8efb998169ceef1c7d7e7810dd7N.exe	32
PID 2408 wrote to memory of 2616	2408	aa6c3a8447e5177e7502c684e408c97f439fd8efb998169ceef1c7d7e7810dd7N.exe	32
PID 2408 wrote to memory of 2516	2408	aa6c3a8447e5177e7502c684e408c97f439fd8efb998169ceef1c7d7e7810dd7N.exe	34
PID 2408 wrote to memory of 2516	2408	aa6c3a8447e5177e7502c684e408c97f439fd8efb998169ceef1c7d7e7810dd7N.exe	34
PID 2408 wrote to memory of 2516	2408	aa6c3a8447e5177e7502c684e408c97f439fd8efb998169ceef1c7d7e7810dd7N.exe	34
PID 2408 wrote to memory of 2536	2408	aa6c3a8447e5177e7502c684e408c97f439fd8efb998169ceef1c7d7e7810dd7N.exe	36
PID 2408 wrote to memory of 2536	2408	aa6c3a8447e5177e7502c684e408c97f439fd8efb998169ceef1c7d7e7810dd7N.exe	36
PID 2408 wrote to memory of 2536	2408	aa6c3a8447e5177e7502c684e408c97f439fd8efb998169ceef1c7d7e7810dd7N.exe	36

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\aa6c3a8447e5177e7502c684e408c97f439fd8efb998169ceef1c7d7e7810dd7N.exe
"C:\Users\Admin\AppData\Local\Temp\aa6c3a8447e5177e7502c684e408c97f439fd8efb998169ceef1c7d7e7810dd7N.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:2408
- 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\aa6c3a8447e5177e7502c684e408c97f439fd8efb998169ceef1c7d7e7810dd7N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2936
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'aa6c3a8447e5177e7502c684e408c97f439fd8efb998169ceef1c7d7e7810dd7N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2196
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\System Settings Brokes.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2616
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'System Settings Brokes.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2516
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "System Settings Brokes" /tr "C:\ProgramData\System Settings Brokes.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2536

C:\Windows\system32\taskeng.exe
taskeng.exe {E9A06405-4E54-4EC2-A0A7-23D71C69E539} S-1-5-21-312935884-697965778-3955649944-1000:MXQFNXLT\Admin:Interactive:[1]
1⤵
PID:600

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\Roaming\Microsoft\Windows\Recent\CustomDestinations\6YF8Y9RTCYYWYF478JFO.temp

Filesize
7KB

MD5
707110e46e01fe83478e4de17cffb452

SHA1
8f1a876c5830e555967614f174a8dd562e067315

SHA256
07ed4cfe05deee8cf20363404ebd1deafe359a04fcd7624970489ab9b3101bfc

SHA512
e73c6a049938a62a42a58c361f559d6d472efeb264fe4942f86d168146163faaa8b2854892663164086b2fefe54d3af893ac510117afd2f8dcbf1caf4b032b7d

Download Submit
memory/2196-14-0x000000001B6A0000-0x000000001B982000-memory.dmp

Filesize
2.9MB

Download
memory/2196-15-0x0000000002280000-0x0000000002288000-memory.dmp

Filesize
32KB

Download
memory/2408-0-0x000007FEF5DA3000-0x000007FEF5DA4000-memory.dmp

Filesize
4KB

Download
memory/2408-1-0x00000000008B0000-0x00000000008C0000-memory.dmp

Filesize
64KB

Download
memory/2408-30-0x000000001AB00000-0x000000001AB80000-memory.dmp

Filesize
512KB

Download
memory/2408-31-0x000007FEF5DA3000-0x000007FEF5DA4000-memory.dmp

Filesize
4KB

Download
memory/2408-32-0x000000001AB00000-0x000000001AB80000-memory.dmp

Filesize
512KB

Download
memory/2936-6-0x0000000002820000-0x00000000028A0000-memory.dmp

Filesize
512KB

Download
memory/2936-7-0x000000001B770000-0x000000001BA52000-memory.dmp

Filesize
2.9MB

Download
memory/2936-8-0x00000000027E0000-0x00000000027E8000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads