xworm | f89ebc619ed93a97968f38959d4582b331b94aa748fd1123fc8276d805164a43

General

Target

9a18962acee9b5b7946b1425233581e0N.exe
Size

85KB
MD5

9a18962acee9b5b7946b1425233581e0
SHA1

4f969b78f34af14278f8e422aacc26d203e5d427
SHA256

f89ebc619ed93a97968f38959d4582b331b94aa748fd1123fc8276d805164a43
SHA512

f574af01cdf46b382e9708a9b16fc8852b2d0e3689d07683f7dc552f14f1e072cc4ae4134747e301dec31a5381b344058c74f5fbcd1fe917623fbb60243527cf
SSDEEP

1536:4mYiwWSj+jM1zw03EQ9+bqADgpnGQFKS416+O2GrkjQIzuvdS1EAd8IIU:4mjjfUj+bqADUhFDAO9AjQa4gEA6IIU

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

127.0.0.1:7000

149.22.84.163:7000

Attributes

Install_directory
%ProgramData%
install_file
Vlc.exe
telegram
https://api.telegram.org/bot7319980603:AAFuzygI8cI8IS2VJgdLb0HfT3zr-_0GWFU

Signatures

Detect Xworm Payload 3 IoCs

resource	yara_rule
behavioral1/memory/1236-1-0x00000000012D0000-0x00000000012EC000-memory.dmp	family_xworm
behavioral1/files/0x0009000000012118-34.dat	family_xworm
behavioral1/memory/1444-36-0x00000000012F0000-0x000000000130C000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat 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
3044	powershell.exe
2864	powershell.exe
2816	powershell.exe
2784	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Vlc.lnk	9a18962acee9b5b7946b1425233581e0N.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Vlc.lnk	9a18962acee9b5b7946b1425233581e0N.exe

Executes dropped EXE 2 IoCs

pid	Process
1444	Vlc.exe
448	Vlc.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-1-5-21-2958949473-3205530200-1453100116-1000\Software\Microsoft\Windows\CurrentVersion\Run\Vlc = "C:\\ProgramData\\Vlc.exe"	9a18962acee9b5b7946b1425233581e0N.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
2668	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
3044	powershell.exe
2864	powershell.exe
2816	powershell.exe
2784	powershell.exe
1236	9a18962acee9b5b7946b1425233581e0N.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	1236	9a18962acee9b5b7946b1425233581e0N.exe
Token: SeDebugPrivilege	3044	powershell.exe
Token: SeDebugPrivilege	2864	powershell.exe
Token: SeDebugPrivilege	2816	powershell.exe
Token: SeDebugPrivilege	2784	powershell.exe
Token: SeDebugPrivilege	1236	9a18962acee9b5b7946b1425233581e0N.exe
Token: SeDebugPrivilege	1444	Vlc.exe
Token: SeDebugPrivilege	448	Vlc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1236	9a18962acee9b5b7946b1425233581e0N.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1236 wrote to memory of 3044	1236	9a18962acee9b5b7946b1425233581e0N.exe	31
PID 1236 wrote to memory of 3044	1236	9a18962acee9b5b7946b1425233581e0N.exe	31
PID 1236 wrote to memory of 3044	1236	9a18962acee9b5b7946b1425233581e0N.exe	31
PID 1236 wrote to memory of 2864	1236	9a18962acee9b5b7946b1425233581e0N.exe	33
PID 1236 wrote to memory of 2864	1236	9a18962acee9b5b7946b1425233581e0N.exe	33
PID 1236 wrote to memory of 2864	1236	9a18962acee9b5b7946b1425233581e0N.exe	33
PID 1236 wrote to memory of 2816	1236	9a18962acee9b5b7946b1425233581e0N.exe	35
PID 1236 wrote to memory of 2816	1236	9a18962acee9b5b7946b1425233581e0N.exe	35
PID 1236 wrote to memory of 2816	1236	9a18962acee9b5b7946b1425233581e0N.exe	35
PID 1236 wrote to memory of 2784	1236	9a18962acee9b5b7946b1425233581e0N.exe	37
PID 1236 wrote to memory of 2784	1236	9a18962acee9b5b7946b1425233581e0N.exe	37
PID 1236 wrote to memory of 2784	1236	9a18962acee9b5b7946b1425233581e0N.exe	37
PID 1236 wrote to memory of 2668	1236	9a18962acee9b5b7946b1425233581e0N.exe	39
PID 1236 wrote to memory of 2668	1236	9a18962acee9b5b7946b1425233581e0N.exe	39
PID 1236 wrote to memory of 2668	1236	9a18962acee9b5b7946b1425233581e0N.exe	39
PID 2004 wrote to memory of 1444	2004	taskeng.exe	43
PID 2004 wrote to memory of 1444	2004	taskeng.exe	43
PID 2004 wrote to memory of 1444	2004	taskeng.exe	43
PID 2004 wrote to memory of 448	2004	taskeng.exe	44
PID 2004 wrote to memory of 448	2004	taskeng.exe	44
PID 2004 wrote to memory of 448	2004	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\9a18962acee9b5b7946b1425233581e0N.exe
"C:\Users\Admin\AppData\Local\Temp\9a18962acee9b5b7946b1425233581e0N.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:1236
- 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\9a18962acee9b5b7946b1425233581e0N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3044
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '9a18962acee9b5b7946b1425233581e0N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2864
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\Vlc.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2816
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Vlc.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2784
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Vlc" /tr "C:\ProgramData\Vlc.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2668

C:\Windows\system32\taskeng.exe
taskeng.exe {AE092BD6-4452-4C84-B51E-8CBF3121CD6D} S-1-5-21-2958949473-3205530200-1453100116-1000:WHMFPZKA\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2004
- C:\ProgramData\Vlc.exe
  C:\ProgramData\Vlc.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1444
- C:\ProgramData\Vlc.exe
  C:\ProgramData\Vlc.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:448

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:\ProgramData\Vlc.exe

Filesize
85KB

MD5
9a18962acee9b5b7946b1425233581e0

SHA1
4f969b78f34af14278f8e422aacc26d203e5d427

SHA256
f89ebc619ed93a97968f38959d4582b331b94aa748fd1123fc8276d805164a43

SHA512
f574af01cdf46b382e9708a9b16fc8852b2d0e3689d07683f7dc552f14f1e072cc4ae4134747e301dec31a5381b344058c74f5fbcd1fe917623fbb60243527cf

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

Filesize
7KB

MD5
986ad8d79c1e46318fcbc55375d19203

SHA1
320b1b0aacf9ff98aa0abddb66d2969c5df0cb9b

SHA256
825225b820bcca7503e0c3b067af51ebcd267610ec8c57d75f0c40c13880d2b6

SHA512
8f57b7a149aa886eb8b7a65c85f091ee6a56b2a051d6e41971c8aad538f6a93dfcd3dbbceaffa5e30574d2e6b7daf0d14a8efa8a684be389d449354d5bcf8c2b

Download Submit
memory/1236-31-0x000000001B140000-0x000000001B1C0000-memory.dmp

Filesize
512KB

Download
memory/1236-1-0x00000000012D0000-0x00000000012EC000-memory.dmp

Filesize
112KB

Download
memory/1236-37-0x000000001B140000-0x000000001B1C0000-memory.dmp

Filesize
512KB

Download
memory/1236-0-0x000007FEF5A63000-0x000007FEF5A64000-memory.dmp

Filesize
4KB

Download
memory/1236-32-0x000007FEF5A63000-0x000007FEF5A64000-memory.dmp

Filesize
4KB

Download
memory/1444-36-0x00000000012F0000-0x000000000130C000-memory.dmp

Filesize
112KB

Download
memory/2864-14-0x000000001B690000-0x000000001B972000-memory.dmp

Filesize
2.9MB

Download
memory/2864-15-0x0000000001EF0000-0x0000000001EF8000-memory.dmp

Filesize
32KB

Download
memory/3044-8-0x0000000002910000-0x0000000002918000-memory.dmp

Filesize
32KB

Download
memory/3044-7-0x000000001B540000-0x000000001B822000-memory.dmp

Filesize
2.9MB

Download
memory/3044-6-0x00000000027D0000-0x0000000002850000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads