xworm | 3cb75e7dce4867e8e5ef45902b75d981c145055b4e9b06936a44dca96fcb19c5

General

Target

XWorm V5.2.exe
Size

215KB
MD5

13e350200a0694496a28d3726f8fe2aa
SHA1

5a6353127160e4e183f67c2469ce704de02b6d4c
SHA256

3cb75e7dce4867e8e5ef45902b75d981c145055b4e9b06936a44dca96fcb19c5
SHA512

02a29f002c705f64b4c999f4934a21d3c7e1bd9cc123ec10366b460b1371b7db5b730fc1e795519e070128ef3c749e7eb53a4d20f48b1d917b4918a083abcbcb
SSDEEP

3072:pHyYuG0wbHN2b1GSTOQEYhYiA2ewhLapuvpAsZOyMqmyBeYVYG:dFuGPbHN2bAS2PC/GWGwqqm1

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

edition-ages.gl.at.ply.gg:14076

Attributes

Install_directory
%AppData%
install_file
svchost.exe

Signatures

Detect Xworm Payload 3 IoCs

resource	yara_rule
behavioral1/memory/2652-1-0x0000000000310000-0x000000000034C000-memory.dmp	family_xworm
behavioral1/files/0x0037000000015e87-35.dat	family_xworm
behavioral1/memory/2232-37-0x00000000012A0000-0x00000000012DC000-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
1096	powershell.exe
2900	powershell.exe
2572	powershell.exe
2624	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	XWorm V5.2.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	XWorm V5.2.exe

Executes dropped EXE 2 IoCs

pid	Process
2232	svchost.exe
2308	svchost.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-1-5-21-3502430532-24693940-2469786940-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	XWorm V5.2.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
2	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
2508	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2572	powershell.exe
2624	powershell.exe
1096	powershell.exe
2900	powershell.exe
2652	XWorm V5.2.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2652	XWorm V5.2.exe
Token: SeDebugPrivilege	2572	powershell.exe
Token: SeDebugPrivilege	2624	powershell.exe
Token: SeDebugPrivilege	1096	powershell.exe
Token: SeDebugPrivilege	2900	powershell.exe
Token: SeDebugPrivilege	2652	XWorm V5.2.exe
Token: SeDebugPrivilege	2232	svchost.exe
Token: SeDebugPrivilege	2308	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2652	XWorm V5.2.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2652 wrote to memory of 2572	2652	XWorm V5.2.exe	31
PID 2652 wrote to memory of 2572	2652	XWorm V5.2.exe	31
PID 2652 wrote to memory of 2572	2652	XWorm V5.2.exe	31
PID 2652 wrote to memory of 2624	2652	XWorm V5.2.exe	33
PID 2652 wrote to memory of 2624	2652	XWorm V5.2.exe	33
PID 2652 wrote to memory of 2624	2652	XWorm V5.2.exe	33
PID 2652 wrote to memory of 1096	2652	XWorm V5.2.exe	35
PID 2652 wrote to memory of 1096	2652	XWorm V5.2.exe	35
PID 2652 wrote to memory of 1096	2652	XWorm V5.2.exe	35
PID 2652 wrote to memory of 2900	2652	XWorm V5.2.exe	37
PID 2652 wrote to memory of 2900	2652	XWorm V5.2.exe	37
PID 2652 wrote to memory of 2900	2652	XWorm V5.2.exe	37
PID 2652 wrote to memory of 2508	2652	XWorm V5.2.exe	39
PID 2652 wrote to memory of 2508	2652	XWorm V5.2.exe	39
PID 2652 wrote to memory of 2508	2652	XWorm V5.2.exe	39
PID 908 wrote to memory of 2232	908	taskeng.exe	42
PID 908 wrote to memory of 2232	908	taskeng.exe	42
PID 908 wrote to memory of 2232	908	taskeng.exe	42
PID 908 wrote to memory of 2308	908	taskeng.exe	43
PID 908 wrote to memory of 2308	908	taskeng.exe	43
PID 908 wrote to memory of 2308	908	taskeng.exe	43

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\XWorm V5.2.exe
"C:\Users\Admin\AppData\Local\Temp\XWorm V5.2.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:2652
- 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\XWorm V5.2.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2572
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XWorm V5.2.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2624
- 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\svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1096
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2900
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2508

C:\Windows\system32\taskeng.exe
taskeng.exe {7A8AEB22-97A7-4DB4-8FC0-78A8F2767F2C} S-1-5-21-3502430532-24693940-2469786940-1000:PSBQWFYT\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:908
- C:\Users\Admin\AppData\Roaming\svchost.exe
  C:\Users\Admin\AppData\Roaming\svchost.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2232
- C:\Users\Admin\AppData\Roaming\svchost.exe
  C:\Users\Admin\AppData\Roaming\svchost.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2308

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
eca3f7ac1e248f16a5300d61f629338d

SHA1
65a500ebc150593cd2384e2f3800edded78444bd

SHA256
e8840cb5893d11738d0e6ee0289642348a0de4c62b41acc1c510b0a8eeb202bf

SHA512
de37484e0f29df1725c3dccd463687a78dcff823b5a9c8b57b7b829d0a7ac01e431cc492a689c48c67f0c93434f8b48f1c2ea47f61afc126ca3edb11d7dc0d9e

Download Submit
C:\Users\Admin\AppData\Roaming\svchost.exe

Filesize
215KB

MD5
13e350200a0694496a28d3726f8fe2aa

SHA1
5a6353127160e4e183f67c2469ce704de02b6d4c

SHA256
3cb75e7dce4867e8e5ef45902b75d981c145055b4e9b06936a44dca96fcb19c5

SHA512
02a29f002c705f64b4c999f4934a21d3c7e1bd9cc123ec10366b460b1371b7db5b730fc1e795519e070128ef3c749e7eb53a4d20f48b1d917b4918a083abcbcb

Download Submit
memory/2232-37-0x00000000012A0000-0x00000000012DC000-memory.dmp

Filesize
240KB

Download
memory/2572-7-0x000000001B7A0000-0x000000001BA82000-memory.dmp

Filesize
2.9MB

Download
memory/2572-8-0x0000000001F30000-0x0000000001F38000-memory.dmp

Filesize
32KB

Download
memory/2624-14-0x000000001B5F0000-0x000000001B8D2000-memory.dmp

Filesize
2.9MB

Download
memory/2624-15-0x0000000001E60000-0x0000000001E68000-memory.dmp

Filesize
32KB

Download
memory/2652-0-0x000007FEF5F63000-0x000007FEF5F64000-memory.dmp

Filesize
4KB

Download
memory/2652-32-0x000007FEF5F63000-0x000007FEF5F64000-memory.dmp

Filesize
4KB

Download
memory/2652-33-0x000007FEF5F60000-0x000007FEF694C000-memory.dmp

Filesize
9.9MB

Download
memory/2652-2-0x000007FEF5F60000-0x000007FEF694C000-memory.dmp

Filesize
9.9MB

Download
memory/2652-1-0x0000000000310000-0x000000000034C000-memory.dmp

Filesize
240KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads