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
behavioral1/memory/2160-1-0x0000000000C30000-0x0000000000C40000-memory.dmp	family_xworm
behavioral1/files/0x000e000000012281-8.dat	family_xworm

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

Deletes itself 1 IoCs

pid	Process
2140	cmd.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\LadBeams.lnk	LadBeams.exe
File created	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-1-5-21-1163522206-1469769407-485553996-1000\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
1752	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
2396	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2160	LadBeams.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2160	LadBeams.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2160	LadBeams.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2160 wrote to memory of 2396	2160	LadBeams.exe	30
PID 2160 wrote to memory of 2396	2160	LadBeams.exe	30
PID 2160 wrote to memory of 2396	2160	LadBeams.exe	30
PID 2160 wrote to memory of 2344	2160	LadBeams.exe	34
PID 2160 wrote to memory of 2344	2160	LadBeams.exe	34
PID 2160 wrote to memory of 2344	2160	LadBeams.exe	34
PID 2160 wrote to memory of 2140	2160	LadBeams.exe	36
PID 2160 wrote to memory of 2140	2160	LadBeams.exe	36
PID 2160 wrote to memory of 2140	2160	LadBeams.exe	36
PID 2140 wrote to memory of 1752	2140	cmd.exe	38
PID 2140 wrote to memory of 1752	2140	cmd.exe	38
PID 2140 wrote to memory of 1752	2140	cmd.exe	38

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⤵
- 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:2160
- 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:2396
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /delete /f /tn "LadBeams"
  2⤵
  PID:2344
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp1239.tmp.bat""
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:2140
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:1752

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

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp1239.tmp.bat

Filesize
160B

MD5
0743d5735c721f34fb1e0876999a0c56

SHA1
8ef34abcdc8ad386718461c4963dfdf6e109219d

SHA256
4045cd1b5ebdfe96942141522acf1fa89fd47a64b2006f49174d434324328926

SHA512
2e35c3189dbea7fdc28baf1e071bae0146ebacd6fe1f51315cd05ec3f1c02f77d153f3040139cfce0f590b0d8cbb80d2f300459dcb2ad758b58116c45bb0bdae

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

Filesize
36KB

MD5
10e43f7859cef3d334e51f2043c7521d

SHA1
0a4d61955bcd2a849d94f3421a1b4c8643a63378

SHA256
3a07029a28172b8ee690bbf943ac0f45f819611b90bd2dda444aa972d145cf38

SHA512
22bcdcd592035b12b81c76b896372c05b4ffcb983cac2777510b924a49ed98b74409d6ea83829f3bfe1898dd99532db677b9bdc403a64fbd6eaed7692c3720a3

Download Submit
memory/2160-0-0x000007FEF6343000-0x000007FEF6344000-memory.dmp

Filesize
4KB

Download
memory/2160-1-0x0000000000C30000-0x0000000000C40000-memory.dmp

Filesize
64KB

Download
memory/2160-10-0x000007FEF6340000-0x000007FEF6D2C000-memory.dmp

Filesize
9.9MB

Download
memory/2160-11-0x000007FEF6343000-0x000007FEF6344000-memory.dmp

Filesize
4KB

Download
memory/2160-12-0x000007FEF6340000-0x000007FEF6D2C000-memory.dmp

Filesize
9.9MB

Download
memory/2160-24-0x000007FEF6340000-0x000007FEF6D2C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads