xworm | 9f415d949edb31f29352b847078cb42f5000a3a877dae35b2f643a69635be991

General

Target

triage.exe
Size

65KB
MD5

ec08b41c685e57009a14a6a194832a5e
SHA1

ee23dbeb29c7a7903cd886a783df66080c8b8588
SHA256

9f415d949edb31f29352b847078cb42f5000a3a877dae35b2f643a69635be991
SHA512

658f8c983bba93df25ef0318a1ea9cbc5de399604f5f7ce4c3525580345b8c9c9c9c7dcfe607a164243dfeb03d4045aca2c834009c512cb6c10b365048a490bc
SSDEEP

1536:1rYR4xse/+G1E7PJ89bBs/fJ6XpOShMn+t:eRDeWGSy9bB5pOSo+t

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

blood-pattern.gl.at.ply.gg:24558

Attributes

Install_directory
%AppData%
install_file
USB.exe
telegram
https://api.telegram.org/bot7704029346:AAHPre1lXQa0UfPCpOUXJZ9UXA9mFxvH4Gk/sendMessage?chat_id=7590668020

Signatures

Detect Xworm Payload 4 IoCs

resource	yara_rule
behavioral1/memory/2472-1-0x00000000008D0000-0x00000000008E6000-memory.dmp	family_xworm
behavioral1/files/0x000b000000012117-35.dat	family_xworm
behavioral1/memory/1940-37-0x00000000003C0000-0x00000000003D6000-memory.dmp	family_xworm
behavioral1/memory/768-40-0x0000000000D00000-0x0000000000D16000-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
1660	powershell.exe
2568	powershell.exe
2052	powershell.exe
3028	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\security.lnk	triage.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\security.lnk	triage.exe

Executes dropped EXE 2 IoCs

pid	Process
1940	security
768	security

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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\security = "C:\\Users\\Admin\\AppData\\Roaming\\security"	triage.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
2604	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2472	triage.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2052	powershell.exe
3028	powershell.exe
1660	powershell.exe
2568	powershell.exe
2472	triage.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2472	triage.exe
Token: SeDebugPrivilege	2052	powershell.exe
Token: SeDebugPrivilege	3028	powershell.exe
Token: SeDebugPrivilege	1660	powershell.exe
Token: SeDebugPrivilege	2568	powershell.exe
Token: SeDebugPrivilege	2472	triage.exe
Token: SeDebugPrivilege	1940	security
Token: SeDebugPrivilege	768	security

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2472	triage.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2472 wrote to memory of 2052	2472	triage.exe	30
PID 2472 wrote to memory of 2052	2472	triage.exe	30
PID 2472 wrote to memory of 2052	2472	triage.exe	30
PID 2472 wrote to memory of 3028	2472	triage.exe	32
PID 2472 wrote to memory of 3028	2472	triage.exe	32
PID 2472 wrote to memory of 3028	2472	triage.exe	32
PID 2472 wrote to memory of 1660	2472	triage.exe	34
PID 2472 wrote to memory of 1660	2472	triage.exe	34
PID 2472 wrote to memory of 1660	2472	triage.exe	34
PID 2472 wrote to memory of 2568	2472	triage.exe	37
PID 2472 wrote to memory of 2568	2472	triage.exe	37
PID 2472 wrote to memory of 2568	2472	triage.exe	37
PID 2472 wrote to memory of 2604	2472	triage.exe	39
PID 2472 wrote to memory of 2604	2472	triage.exe	39
PID 2472 wrote to memory of 2604	2472	triage.exe	39
PID 1596 wrote to memory of 1940	1596	taskeng.exe	43
PID 1596 wrote to memory of 1940	1596	taskeng.exe	43
PID 1596 wrote to memory of 1940	1596	taskeng.exe	43
PID 1596 wrote to memory of 768	1596	taskeng.exe	44
PID 1596 wrote to memory of 768	1596	taskeng.exe	44
PID 1596 wrote to memory of 768	1596	taskeng.exe	44

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\triage.exe
"C:\Users\Admin\AppData\Local\Temp\triage.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2472
- 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\triage.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2052
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'triage.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3028
- 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\security'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1660
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'security'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2568
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "security" /tr "C:\Users\Admin\AppData\Roaming\security"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2604

C:\Windows\system32\taskeng.exe
taskeng.exe {9B602349-F04B-457D-B286-0EE48D596154} S-1-5-21-4177215427-74451935-3209572229-1000:JSMURNPT\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1596
- C:\Users\Admin\AppData\Roaming\security
  C:\Users\Admin\AppData\Roaming\security
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1940
- C:\Users\Admin\AppData\Roaming\security
  C:\Users\Admin\AppData\Roaming\security
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:768

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\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
b999c853e8b88ea8b82acb53a97bd4ed

SHA1
5762d71516daa1c71202250cbdc8397d4acfd882

SHA256
2c2d0690880a80c524f8e5a719f176810d0ace98c165089b690752f9043b1b20

SHA512
73ed1d80eb695961522fca626599a00ab51621cf4c13e813859675cf7cfdfa068917c19bfc9ed42df6e187847b4106081b7521c959cf274973cc0081d478b0b8

Download Submit
C:\Users\Admin\AppData\Roaming\security

Filesize
65KB

MD5
ec08b41c685e57009a14a6a194832a5e

SHA1
ee23dbeb29c7a7903cd886a783df66080c8b8588

SHA256
9f415d949edb31f29352b847078cb42f5000a3a877dae35b2f643a69635be991

SHA512
658f8c983bba93df25ef0318a1ea9cbc5de399604f5f7ce4c3525580345b8c9c9c9c7dcfe607a164243dfeb03d4045aca2c834009c512cb6c10b365048a490bc

Download Submit
memory/768-40-0x0000000000D00000-0x0000000000D16000-memory.dmp

Filesize
88KB

Download
memory/1940-37-0x00000000003C0000-0x00000000003D6000-memory.dmp

Filesize
88KB

Download
memory/2052-6-0x0000000002A70000-0x0000000002AF0000-memory.dmp

Filesize
512KB

Download
memory/2052-7-0x000000001B680000-0x000000001B962000-memory.dmp

Filesize
2.9MB

Download
memory/2052-8-0x0000000002240000-0x0000000002248000-memory.dmp

Filesize
32KB

Download
memory/2472-31-0x000000001B420000-0x000000001B4A0000-memory.dmp

Filesize
512KB

Download
memory/2472-0-0x000007FEF5523000-0x000007FEF5524000-memory.dmp

Filesize
4KB

Download
memory/2472-32-0x000007FEF5523000-0x000007FEF5524000-memory.dmp

Filesize
4KB

Download
memory/2472-33-0x000000001B420000-0x000000001B4A0000-memory.dmp

Filesize
512KB

Download
memory/2472-1-0x00000000008D0000-0x00000000008E6000-memory.dmp

Filesize
88KB

Download
memory/3028-14-0x000000001B5D0000-0x000000001B8B2000-memory.dmp

Filesize
2.9MB

Download
memory/3028-15-0x0000000002810000-0x0000000002818000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads