xworm | 3a07029a28172b8ee690bbf943ac0f45f819611b90bd2dda444aa972d145cf38

General

Target

LadBeams.exe
Size

36KB
MD5

10e43f7859cef3d334e51f2043c7521d
SHA1

0a4d61955bcd2a849d94f3421a1b4c8643a63378
SHA256

3a07029a28172b8ee690bbf943ac0f45f819611b90bd2dda444aa972d145cf38
SHA512

22bcdcd592035b12b81c76b896372c05b4ffcb983cac2777510b924a49ed98b74409d6ea83829f3bfe1898dd99532db677b9bdc403a64fbd6eaed7692c3720a3
SSDEEP

768:kra5QDoJFA4g+xCwdW9OFpVFr9oxOwhmu/ZaR:+a5QDeRg+8wgSXFr9oxOw0hR

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

3.1

Mutex

TXNXspXqHQ7kFGni

Attributes

Install_directory
%AppData%
install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/384-1-0x0000000000A70000-0x0000000000A80000-memory.dmp	family_xworm
behavioral2/files/0x0004000000022ef8-8.dat	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	LadBeams.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\LadBeams.lnk	LadBeams.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\LadBeams.lnk	LadBeams.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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\LadBeams = "C:\\Users\\Admin\\AppData\\Roaming\\LadBeams.exe"	LadBeams.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2020	timeout.exe

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
1576	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
384	LadBeams.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	384	LadBeams.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
384	LadBeams.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 384 wrote to memory of 1576	384	LadBeams.exe	87
PID 384 wrote to memory of 1576	384	LadBeams.exe	87
PID 384 wrote to memory of 3000	384	LadBeams.exe	97
PID 384 wrote to memory of 3000	384	LadBeams.exe	97
PID 384 wrote to memory of 2472	384	LadBeams.exe	99
PID 384 wrote to memory of 2472	384	LadBeams.exe	99
PID 2472 wrote to memory of 2020	2472	cmd.exe	102
PID 2472 wrote to memory of 2020	2472	cmd.exe	102

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\LadBeams.exe
"C:\Users\Admin\AppData\Local\Temp\LadBeams.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:384
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "LadBeams" /tr "C:\Users\Admin\AppData\Roaming\LadBeams.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1576
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /delete /f /tn "LadBeams"
  2⤵
  PID:3000
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpE6C6.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2472
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2020

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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\Temp\tmpE6C6.tmp.bat

Filesize
160B

MD5
a05e90a91c01869d91ecbdc1cb74ef1c

SHA1
4f17c28095920ca744197fe4cdc8b9e3a40b1f01

SHA256
6848ec926f103fde57c6a262267b1d601b53455b187f83917f654e3f1c1fb3be

SHA512
43386a31282c35f13c476545c8272234bbc7ea2e1bab6b6c9e04f1d944dbf1084316805fced3704eec6f36c2936aec0e63f420c523a76a4f4e4cbd08f68bd0cf

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

Filesize
36KB

MD5
10e43f7859cef3d334e51f2043c7521d

SHA1
0a4d61955bcd2a849d94f3421a1b4c8643a63378

SHA256
3a07029a28172b8ee690bbf943ac0f45f819611b90bd2dda444aa972d145cf38

SHA512
22bcdcd592035b12b81c76b896372c05b4ffcb983cac2777510b924a49ed98b74409d6ea83829f3bfe1898dd99532db677b9bdc403a64fbd6eaed7692c3720a3

Download Submit
memory/384-0-0x00007FFBFB083000-0x00007FFBFB085000-memory.dmp

Filesize
8KB

Download
memory/384-1-0x0000000000A70000-0x0000000000A80000-memory.dmp

Filesize
64KB

Download
memory/384-10-0x00007FFBFB080000-0x00007FFBFBB41000-memory.dmp

Filesize
10.8MB

Download
memory/384-11-0x00007FFBFB083000-0x00007FFBFB085000-memory.dmp

Filesize
8KB

Download
memory/384-12-0x00007FFBFB080000-0x00007FFBFBB41000-memory.dmp

Filesize
10.8MB

Download
memory/384-19-0x00007FFBFB080000-0x00007FFBFBB41000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads