xworm | a1715115f4e541c7c69235aa8dc446857e5d6dbc1d4f28c7b4cf72122bad0248

General

Target

AntiCheat.exe
Size

65KB
MD5

ecf14cc5ff0424515577c9a2c5c3f778
SHA1

d91bdfe875552295fa07bf53da7ea3775b409006
SHA256

a1715115f4e541c7c69235aa8dc446857e5d6dbc1d4f28c7b4cf72122bad0248
SHA512

b57df6f7c05573dc0b612dacaf164486e19a0183683a06ef6c01a317bf98e16101cba1dd54c405e09ae0afc1868b42079a52cbbed2e8db8dcaf8f6f6661148b1
SSDEEP

1536:Vs4ew6fIj+QcTE80/uv2VV4bUOvCCj46oSpy9FfyWXaOe80R5z:OhQbueYbUZyy9F6WqOt0R5z

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

C2

weeks-deployment.gl.at.ply.gg:56058

Attributes

Install_directory
%AppData%
install_file
System32.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2892-1-0x0000000000890000-0x00000000008A6000-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
2668	powershell.exe
2716	powershell.exe
2568	powershell.exe
1972	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System32.lnk	AntiCheat.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System32.lnk	AntiCheat.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
2	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 4 IoCs

pid	Process
2668	powershell.exe
2716	powershell.exe
2568	powershell.exe
1972	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2892	AntiCheat.exe
Token: SeDebugPrivilege	2668	powershell.exe
Token: SeDebugPrivilege	2716	powershell.exe
Token: SeDebugPrivilege	2568	powershell.exe
Token: SeDebugPrivilege	1972	powershell.exe
Token: SeDebugPrivilege	2892	AntiCheat.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2892 wrote to memory of 2668	2892	AntiCheat.exe	29
PID 2892 wrote to memory of 2668	2892	AntiCheat.exe	29
PID 2892 wrote to memory of 2668	2892	AntiCheat.exe	29
PID 2892 wrote to memory of 2716	2892	AntiCheat.exe	31
PID 2892 wrote to memory of 2716	2892	AntiCheat.exe	31
PID 2892 wrote to memory of 2716	2892	AntiCheat.exe	31
PID 2892 wrote to memory of 2568	2892	AntiCheat.exe	33
PID 2892 wrote to memory of 2568	2892	AntiCheat.exe	33
PID 2892 wrote to memory of 2568	2892	AntiCheat.exe	33
PID 2892 wrote to memory of 1972	2892	AntiCheat.exe	35
PID 2892 wrote to memory of 1972	2892	AntiCheat.exe	35
PID 2892 wrote to memory of 1972	2892	AntiCheat.exe	35

C:\Users\Admin\AppData\Local\Temp\AntiCheat.exe
"C:\Users\Admin\AppData\Local\Temp\AntiCheat.exe"
1⤵
- Drops startup file
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2892
- 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\AntiCheat.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2668
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'AntiCheat.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2716
- 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\System32.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2568
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'System32.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1972

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
67d489b6497ccba63c10bc8a3a091595

SHA1
fef45feee8d358ea1c61de41e29e706aa9b46e85

SHA256
befe017e47cb1426bdecfa4afb3b964822b9be32ddf0aaca7da1dd8492ee6ea8

SHA512
56cb03e834fa6824e6425e8d8fa3e04e0eeae10fe35006c9c0bc4758a4905e319df80095d3d0a64f9f485c04d55622f895a903596cb3354b9fd64715199a067a

Download Submit
memory/2668-8-0x0000000002290000-0x0000000002298000-memory.dmp

Filesize
32KB

Download
memory/2668-7-0x000000001B6C0000-0x000000001B9A2000-memory.dmp

Filesize
2.9MB

Download
memory/2716-14-0x000000001B470000-0x000000001B752000-memory.dmp

Filesize
2.9MB

Download
memory/2716-15-0x0000000001E70000-0x0000000001E78000-memory.dmp

Filesize
32KB

Download
memory/2892-2-0x000007FEF5750000-0x000007FEF613C000-memory.dmp

Filesize
9.9MB

Download
memory/2892-0-0x000007FEF5753000-0x000007FEF5754000-memory.dmp

Filesize
4KB

Download
memory/2892-1-0x0000000000890000-0x00000000008A6000-memory.dmp

Filesize
88KB

Download
memory/2892-31-0x0000000002040000-0x000000000204C000-memory.dmp

Filesize
48KB

Download
memory/2892-32-0x000007FEF5753000-0x000007FEF5754000-memory.dmp

Filesize
4KB

Download
memory/2892-33-0x000007FEF5750000-0x000007FEF613C000-memory.dmp

Filesize
9.9MB

Download
memory/2892-35-0x00000000020E0000-0x00000000020F0000-memory.dmp

Filesize
64KB

Download

Analysis

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