xworm | 198f82a2b491cb5c769d25c03ea7908161e20a9b51b585099f7088cef5c4323e

General

Target

XwormV5.6.exe
Size

15.0MB
MD5

2ff4c5a7eff1d9f19e23156dceeca4d0
SHA1

d8c175bb2b968713d48b37e1d018c8736a34ea6d
SHA256

198f82a2b491cb5c769d25c03ea7908161e20a9b51b585099f7088cef5c4323e
SHA512

2c839576c2a9ce47b4d37325417a4055e4f8674323b6b1a558fac35628eaf32e354271936ceb8dc6a38ccc24b170cc17c08e74a994e8363831b410810d676a05
SSDEEP

3072:LJKhDbtkb2D7wyOQnxZd+xYoPdLa5a47Qnx5RUUOMlv1s8W:LJKhDSbFGExYoPJatsjtlv1s8

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

C2

193.161.193.99:63603

37.4.250.173:63603

Attributes

Install_directory
%AppData%
install_file
XwormV6.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2548-1-0x0000000000E30000-0x0000000000E54000-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
1992	powershell.exe
2900	powershell.exe
2848	powershell.exe
2228	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XwormV6.lnk	XwormV5.6.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XwormV6.lnk	XwormV5.6.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1992	powershell.exe
2900	powershell.exe
2848	powershell.exe
2228	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2548	XwormV5.6.exe
Token: SeDebugPrivilege	1992	powershell.exe
Token: SeDebugPrivilege	2900	powershell.exe
Token: SeDebugPrivilege	2848	powershell.exe
Token: SeDebugPrivilege	2228	powershell.exe
Token: SeDebugPrivilege	2548	XwormV5.6.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2548 wrote to memory of 1992	2548	XwormV5.6.exe	30
PID 2548 wrote to memory of 1992	2548	XwormV5.6.exe	30
PID 2548 wrote to memory of 1992	2548	XwormV5.6.exe	30
PID 2548 wrote to memory of 2900	2548	XwormV5.6.exe	33
PID 2548 wrote to memory of 2900	2548	XwormV5.6.exe	33
PID 2548 wrote to memory of 2900	2548	XwormV5.6.exe	33
PID 2548 wrote to memory of 2848	2548	XwormV5.6.exe	35
PID 2548 wrote to memory of 2848	2548	XwormV5.6.exe	35
PID 2548 wrote to memory of 2848	2548	XwormV5.6.exe	35
PID 2548 wrote to memory of 2228	2548	XwormV5.6.exe	37
PID 2548 wrote to memory of 2228	2548	XwormV5.6.exe	37
PID 2548 wrote to memory of 2228	2548	XwormV5.6.exe	37

C:\Users\Admin\AppData\Local\Temp\XwormV5.6.exe
"C:\Users\Admin\AppData\Local\Temp\XwormV5.6.exe"
1⤵
- Drops startup file
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2548
- 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\XwormV5.6.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1992
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XwormV5.6.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2900
- 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\XwormV6.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2848
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XwormV6.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2228

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
6e13121ca8108cc596f5b61e6c39ac46

SHA1
53c91a3baae8b3c430d5514bdefcfee8a91a2593

SHA256
992f4ad185bf178a4cfd2cd18f58a7d95a10454796fb992f77890622cbb4cef2

SHA512
1224212e922c8e2bdf4cd95f6f2d3b2b1477dcfd365ab2afb63a31b0fa616f35f1f418c264a31c6c5cc5cff85f1244c449f5774837c8f172fba417fd1d7eb6a3

Download Submit
memory/1992-6-0x0000000002D40000-0x0000000002DC0000-memory.dmp

Filesize
512KB

Download
memory/1992-7-0x000000001B640000-0x000000001B922000-memory.dmp

Filesize
2.9MB

Download
memory/1992-8-0x0000000002340000-0x0000000002348000-memory.dmp

Filesize
32KB

Download
memory/2548-0-0x000007FEF5823000-0x000007FEF5824000-memory.dmp

Filesize
4KB

Download
memory/2548-1-0x0000000000E30000-0x0000000000E54000-memory.dmp

Filesize
144KB

Download
memory/2548-31-0x000000001B290000-0x000000001B310000-memory.dmp

Filesize
512KB

Download
memory/2548-32-0x000007FEF5823000-0x000007FEF5824000-memory.dmp

Filesize
4KB

Download
memory/2548-33-0x000000001B290000-0x000000001B310000-memory.dmp

Filesize
512KB

Download
memory/2900-14-0x000000001B770000-0x000000001BA52000-memory.dmp

Filesize
2.9MB

Download
memory/2900-15-0x0000000001CF0000-0x0000000001CF8000-memory.dmp

Filesize
32KB

Download

Analysis

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