xworm | b96640cb2a36f9bbaf48fe4798091068b9f518af783236e759763f2386f6a157

General

Target

LibraryDownload.exe
Size

171KB
MD5

0f4733702f7441130c76f92271e33d52
SHA1

962c64538ad4b11b0a57a269e726476eaf1e5cd4
SHA256

b96640cb2a36f9bbaf48fe4798091068b9f518af783236e759763f2386f6a157
SHA512

3718e10cdbb2dd1089a3cc4437c0884593ed0194953e0e0d6865b33475ffd2d8b9bcdffe5e8fade78eb4078b6777ca65618617a2563007b77998c273d85be0f5
SSDEEP

3072:vOMQnN3iDf+bpT7E3ubGoOmaG8vwps/Bz65/M6If+3Js+3JFkKeTnu:vOnxwWboub+As/xBt25

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

designed-paragraph.gl.at.ply.gg:6553

Attributes

Install_directory
%AppData%
install_file
OneDrive.exe
telegram
https://api.telegram.org/bot7632521130:AAFUdxmN095QSre97Sy3YKm36m78BuQCg7g/sendMessage?chat_id=6370415730

Signatures

Detect Xworm Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4828-1-0x0000000000D00000-0x0000000000D30000-memory.dmp	family_xworm
behavioral2/files/0x000b000000023ca1-58.dat	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

Processes:

powershell.exepowershell.exepowershell.exepowershell.exe

pid	Process
3956	powershell.exe
852	powershell.exe
312	powershell.exe
3720	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

LibraryDownload.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	LibraryDownload.exe

Drops startup file 2 IoCs

Processes:

LibraryDownload.exe

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

Executes dropped EXE 3 IoCs

Processes:

OneDrive.exeOneDrive.exeOneDrive.exe

pid	Process
3204	OneDrive.exe
1888	OneDrive.exe
540	OneDrive.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

LibraryDownload.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\OneDrive = "C:\\Users\\Admin\\AppData\\Roaming\\OneDrive.exe"	LibraryDownload.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

Processes:

schtasks.exe

pid	Process
936	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exeLibraryDownload.exe

pid	Process
3956	powershell.exe
3956	powershell.exe
852	powershell.exe
852	powershell.exe
312	powershell.exe
312	powershell.exe
3720	powershell.exe
3720	powershell.exe
4828	LibraryDownload.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

LibraryDownload.exepowershell.exepowershell.exepowershell.exepowershell.exeOneDrive.exeOneDrive.exeOneDrive.exe

description	pid	Process
Token: SeDebugPrivilege	4828	LibraryDownload.exe
Token: SeDebugPrivilege	3956	powershell.exe
Token: SeDebugPrivilege	852	powershell.exe
Token: SeDebugPrivilege	312	powershell.exe
Token: SeDebugPrivilege	3720	powershell.exe
Token: SeDebugPrivilege	3204	OneDrive.exe
Token: SeDebugPrivilege	1888	OneDrive.exe
Token: SeDebugPrivilege	540	OneDrive.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

LibraryDownload.exe

pid	Process
4828	LibraryDownload.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

LibraryDownload.exe

description	pid	Process	procid_target
PID 4828 wrote to memory of 3956	4828	LibraryDownload.exe	84
PID 4828 wrote to memory of 3956	4828	LibraryDownload.exe	84
PID 4828 wrote to memory of 852	4828	LibraryDownload.exe	86
PID 4828 wrote to memory of 852	4828	LibraryDownload.exe	86
PID 4828 wrote to memory of 312	4828	LibraryDownload.exe	88
PID 4828 wrote to memory of 312	4828	LibraryDownload.exe	88
PID 4828 wrote to memory of 3720	4828	LibraryDownload.exe	90
PID 4828 wrote to memory of 3720	4828	LibraryDownload.exe	90
PID 4828 wrote to memory of 936	4828	LibraryDownload.exe	95
PID 4828 wrote to memory of 936	4828	LibraryDownload.exe	95

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\LibraryDownload.exe
"C:\Users\Admin\AppData\Local\Temp\LibraryDownload.exe"
1⤵
- Checks computer location settings
- 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:4828
- 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\LibraryDownload.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3956
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'LibraryDownload.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:852
- 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\OneDrive.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:312
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'OneDrive.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3720
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "OneDrive" /tr "C:\Users\Admin\AppData\Roaming\OneDrive.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:936

C:\Users\Admin\AppData\Roaming\OneDrive.exe
C:\Users\Admin\AppData\Roaming\OneDrive.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3204

C:\Users\Admin\AppData\Roaming\OneDrive.exe
C:\Users\Admin\AppData\Roaming\OneDrive.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1888

C:\Users\Admin\AppData\Roaming\OneDrive.exe
C:\Users\Admin\AppData\Roaming\OneDrive.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:540

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

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\OneDrive.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
bd5940f08d0be56e65e5f2aaf47c538e

SHA1
d7e31b87866e5e383ab5499da64aba50f03e8443

SHA256
2d2f364c75bd2897504249f42cdf1d19374f5230aad68fa9154ea3d03e3031a6

SHA512
c34d10c7e07da44a180fae9889b61f08903aa84e8ddfa80c31c272b1ef9d491b8cec6b8a4c836c3cb1583fe8f4955c6a8db872515de3a9e10eae09610c959406

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
be67063c62a242565760a02a642a9f02

SHA1
d1043a892b44d6676f71b568f578fff947266a19

SHA256
56f158298dc5f781d6636a0b15d040f9cffb1d46cd11079aa40a26b662217f48

SHA512
90d2cbd882ff8043412ad25e74df0cf6b71d6f3fbdfa6f1efa0efc8eed86a925606c7d2e967f112a34d3f0e04f01a396898508571400dcf7e6fd69e78f406638

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
b0df02c89de5323c66e7a803fe7605b7

SHA1
405dc6f27a84c05ac15535a694d488219f7de074

SHA256
4641b96a0db742e3a95513298cb64030622d70ea6530bee1dae0577db981c84a

SHA512
d9f2269fcfd69448b4d563ff4455099d77e185784b80c9427267a1768a7afa95ed7c1c343929cfad82043f8bf1e6b48a7fdacdbbbccbdbdc63421027deb9a8ad

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jbzwxgop.eau.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
171KB

MD5
0f4733702f7441130c76f92271e33d52

SHA1
962c64538ad4b11b0a57a269e726476eaf1e5cd4

SHA256
b96640cb2a36f9bbaf48fe4798091068b9f518af783236e759763f2386f6a157

SHA512
3718e10cdbb2dd1089a3cc4437c0884593ed0194953e0e0d6865b33475ffd2d8b9bcdffe5e8fade78eb4078b6777ca65618617a2563007b77998c273d85be0f5

Download Submit
memory/3956-12-0x00007FFEEE0C0000-0x00007FFEEEB81000-memory.dmp

Filesize
10.8MB

Download
memory/3956-17-0x00007FFEEE0C0000-0x00007FFEEEB81000-memory.dmp

Filesize
10.8MB

Download
memory/3956-14-0x00007FFEEE0C0000-0x00007FFEEEB81000-memory.dmp

Filesize
10.8MB

Download
memory/3956-13-0x00007FFEEE0C0000-0x00007FFEEEB81000-memory.dmp

Filesize
10.8MB

Download
memory/3956-2-0x000001E3C4BF0000-0x000001E3C4C12000-memory.dmp

Filesize
136KB

Download
memory/4828-0-0x00007FFEEE0C3000-0x00007FFEEE0C5000-memory.dmp

Filesize
8KB

Download
memory/4828-56-0x00007FFEEE0C0000-0x00007FFEEEB81000-memory.dmp

Filesize
10.8MB

Download
memory/4828-57-0x00007FFEEE0C3000-0x00007FFEEE0C5000-memory.dmp

Filesize
8KB

Download
memory/4828-61-0x00007FFEEE0C0000-0x00007FFEEEB81000-memory.dmp

Filesize
10.8MB

Download
memory/4828-1-0x0000000000D00000-0x0000000000D30000-memory.dmp

Filesize
192KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads