xworm | 2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449

General

Target

2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe
Size

40KB
MD5

36a1ae0555b5c56da0d72fc78864f11e
SHA1

516159937190a889e2cfa1f4b3a2d4a0a772f82f
SHA256

2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449
SHA512

3313c7303e745de06a0cc0b1093f251f82bffd88fea7d37403449924a0d7c8a844d9d73ace749022b60cf3932c3da121c3a6836f62347942d622d5a3af3f6cea
SSDEEP

768:INfPMSk3K/EzTb/0X8WuFZ4ZJF5PC9O9568OMhu3/O2:of05a/CTjS89wFc9U568OMsF

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

156.225.129.219:1445

Mutex

LkRlKJxmQjSvDYPt

Attributes

Install_directory
%Userprofile%
install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/1936-1-0x0000000000DB0000-0x0000000000DC0000-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
1932	powershell.exe
1792	powershell.exe
2756	powershell.exe
2672	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\csrss.lnk	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\csrss.lnk	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.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
4	ip-api.com

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2756	powershell.exe
2672	powershell.exe
1932	powershell.exe
1792	powershell.exe
1936	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	1936	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe
Token: SeDebugPrivilege	2756	powershell.exe
Token: SeDebugPrivilege	2672	powershell.exe
Token: SeDebugPrivilege	1932	powershell.exe
Token: SeDebugPrivilege	1792	powershell.exe
Token: SeDebugPrivilege	1936	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1936	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1936 wrote to memory of 2756	1936	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe	30
PID 1936 wrote to memory of 2756	1936	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe	30
PID 1936 wrote to memory of 2756	1936	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe	30
PID 1936 wrote to memory of 2672	1936	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe	32
PID 1936 wrote to memory of 2672	1936	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe	32
PID 1936 wrote to memory of 2672	1936	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe	32
PID 1936 wrote to memory of 1932	1936	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe	34
PID 1936 wrote to memory of 1932	1936	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe	34
PID 1936 wrote to memory of 1932	1936	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe	34
PID 1936 wrote to memory of 1792	1936	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe	36
PID 1936 wrote to memory of 1792	1936	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe	36
PID 1936 wrote to memory of 1792	1936	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe	36

C:\Users\Admin\AppData\Local\Temp\2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe
"C:\Users\Admin\AppData\Local\Temp\2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe"
1⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1936
- 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\2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2756
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2672
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\csrss'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1932
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'csrss'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1792

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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
c06976440458e02d2fae6948d8177663

SHA1
424ebdf0bf95a44ba7a6419a925dc6e9556088e1

SHA256
5ca26fccebd1213321670488faa30a2b15c2753e58bfb620b752d0cf50d99e41

SHA512
12a4ea2a62dd51bede7dd9dc59a47187ea931dc08c71c1df991ece9c482dc843b139d358ea9016306b82f60f169fb96885663c56933057c21c91141715c938f9

Download Submit
memory/1936-0-0x000007FEF64B3000-0x000007FEF64B4000-memory.dmp

Filesize
4KB

Download
memory/1936-1-0x0000000000DB0000-0x0000000000DC0000-memory.dmp

Filesize
64KB

Download
memory/1936-2-0x000007FEF64B0000-0x000007FEF6E9C000-memory.dmp

Filesize
9.9MB

Download
memory/1936-30-0x000007FEF64B0000-0x000007FEF6E9C000-memory.dmp

Filesize
9.9MB

Download
memory/2672-15-0x000000001B680000-0x000000001B962000-memory.dmp

Filesize
2.9MB

Download
memory/2672-16-0x0000000001D90000-0x0000000001D98000-memory.dmp

Filesize
32KB

Download
memory/2756-7-0x0000000002940000-0x00000000029C0000-memory.dmp

Filesize
512KB

Download
memory/2756-9-0x0000000002810000-0x0000000002818000-memory.dmp

Filesize
32KB

Download
memory/2756-8-0x000000001B6A0000-0x000000001B982000-memory.dmp

Filesize
2.9MB

Download

Analysis

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