xworm | dd613b3cad5815102a816ec70b1518d413c7e2998be64a49eecd5f14b28d42ed

General

Target

fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe
Size

158KB
MD5

1ade097499dd5fb334ffe69d06d00b31
SHA1

ab5e0d3a2e0a71b2afe9a04bd24835a8f5874079
SHA256

fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730
SHA512

b35aec83bbf5e0501a706df42db4db1b077acf88e37a4d6c65b52c83f24db0e0eb33fad9f22f0a847a14f6540419d85e24062f9c65a2a6d96db5ab20d315598e
SSDEEP

3072:6vpWpop9+bNFwwO52HJe5BV0bUniyimyx:IVpkbEaJe5v0bURy

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

topics-junior.at.ply.gg:45283

Attributes

Install_directory
%AppData%
install_file
msedge.exe

Signatures

Detect Xworm Payload 4 IoCs

resource	yara_rule
behavioral1/memory/1776-1-0x0000000000C90000-0x0000000000CBC000-memory.dmp	family_xworm
behavioral1/files/0x000e00000001202c-36.dat	family_xworm
behavioral1/memory/1948-38-0x0000000000C20000-0x0000000000C4C000-memory.dmp	family_xworm
behavioral1/memory/2928-41-0x00000000010E0000-0x000000000110C000-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
3000	powershell.exe
2428	powershell.exe
2872	powershell.exe
2628	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\msedge.lnk	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\msedge.lnk	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe

Executes dropped EXE 2 IoCs

pid	Process
1948	msedge.exe
2928	msedge.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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\msedge = "C:\\Users\\Admin\\AppData\\Roaming\\msedge.exe"	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.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: EnumeratesProcesses 5 IoCs

pid	Process
3000	powershell.exe
2428	powershell.exe
2872	powershell.exe
2628	powershell.exe
1776	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	1776	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe
Token: SeDebugPrivilege	3000	powershell.exe
Token: SeDebugPrivilege	2428	powershell.exe
Token: SeDebugPrivilege	2872	powershell.exe
Token: SeDebugPrivilege	2628	powershell.exe
Token: SeDebugPrivilege	1776	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe
Token: SeDebugPrivilege	1948	msedge.exe
Token: SeDebugPrivilege	2928	msedge.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1776	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1776 wrote to memory of 3000	1776	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe	30
PID 1776 wrote to memory of 3000	1776	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe	30
PID 1776 wrote to memory of 3000	1776	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe	30
PID 1776 wrote to memory of 2428	1776	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe	32
PID 1776 wrote to memory of 2428	1776	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe	32
PID 1776 wrote to memory of 2428	1776	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe	32
PID 1776 wrote to memory of 2872	1776	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe	34
PID 1776 wrote to memory of 2872	1776	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe	34
PID 1776 wrote to memory of 2872	1776	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe	34
PID 1776 wrote to memory of 2628	1776	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe	36
PID 1776 wrote to memory of 2628	1776	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe	36
PID 1776 wrote to memory of 2628	1776	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe	36
PID 1776 wrote to memory of 2604	1776	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe	38
PID 1776 wrote to memory of 2604	1776	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe	38
PID 1776 wrote to memory of 2604	1776	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe	38
PID 1864 wrote to memory of 1948	1864	taskeng.exe	42
PID 1864 wrote to memory of 1948	1864	taskeng.exe	42
PID 1864 wrote to memory of 1948	1864	taskeng.exe	42
PID 1864 wrote to memory of 2928	1864	taskeng.exe	43
PID 1864 wrote to memory of 2928	1864	taskeng.exe	43
PID 1864 wrote to memory of 2928	1864	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\fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe
"C:\Users\Admin\AppData\Local\Temp\fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.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:1776
- 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\fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3000
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2428
- 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\msedge.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2872
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'msedge.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2628
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "msedge" /tr "C:\Users\Admin\AppData\Roaming\msedge.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2604

C:\Windows\system32\taskeng.exe
taskeng.exe {68BE668F-127A-4FF0-AB73-E8021FEF1EB5} S-1-5-21-1163522206-1469769407-485553996-1000:PJCSDMRP\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1864
- C:\Users\Admin\AppData\Roaming\msedge.exe
  C:\Users\Admin\AppData\Roaming\msedge.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1948
- C:\Users\Admin\AppData\Roaming\msedge.exe
  C:\Users\Admin\AppData\Roaming\msedge.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2928

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
4ef6db9b4dd51e117344a4fbf2c161c3

SHA1
73e6c4b8e9d1d70a314d4ed8e73dc55c437c6d70

SHA256
fa99f13f4a8ce8a5267088f1f08a742db1a6a310b94ed55bb1276611e6589eba

SHA512
309c6f895b489578bf2d148176922a9fbbff05a9e242cfd8ac0f42afe6efb564fa9084b78d7dbb77660d813fd5fb45af2b18c0fe514ea9267e51d46c288dcd52

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

Filesize
158KB

MD5
1ade097499dd5fb334ffe69d06d00b31

SHA1
ab5e0d3a2e0a71b2afe9a04bd24835a8f5874079

SHA256
fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730

SHA512
b35aec83bbf5e0501a706df42db4db1b077acf88e37a4d6c65b52c83f24db0e0eb33fad9f22f0a847a14f6540419d85e24062f9c65a2a6d96db5ab20d315598e

Download Submit
memory/1776-32-0x000000001B3D0000-0x000000001B450000-memory.dmp

Filesize
512KB

Download
memory/1776-1-0x0000000000C90000-0x0000000000CBC000-memory.dmp

Filesize
176KB

Download
memory/1776-34-0x000000001B3D0000-0x000000001B450000-memory.dmp

Filesize
512KB

Download
memory/1776-0-0x000007FEF58E3000-0x000007FEF58E4000-memory.dmp

Filesize
4KB

Download
memory/1776-33-0x000007FEF58E3000-0x000007FEF58E4000-memory.dmp

Filesize
4KB

Download
memory/1948-38-0x0000000000C20000-0x0000000000C4C000-memory.dmp

Filesize
176KB

Download
memory/2428-14-0x000000001B510000-0x000000001B7F2000-memory.dmp

Filesize
2.9MB

Download
memory/2428-15-0x0000000002240000-0x0000000002248000-memory.dmp

Filesize
32KB

Download
memory/2928-41-0x00000000010E0000-0x000000000110C000-memory.dmp

Filesize
176KB

Download
memory/3000-8-0x0000000002970000-0x0000000002978000-memory.dmp

Filesize
32KB

Download
memory/3000-7-0x000000001B4B0000-0x000000001B792000-memory.dmp

Filesize
2.9MB

Download
memory/3000-6-0x0000000002C50000-0x0000000002CD0000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads