xworm | 1645991919fd66fed7adc8f19d4600b46fb86b54062c86e76279cb0f74ac8e42

General

Target

SteamCRACKED_patched.exe
Size

656KB
MD5

e013cc772300564eb65f6ebb9d1f10c6
SHA1

9cb8f0419e0127664da18f37737077da06b45a8b
SHA256

1645991919fd66fed7adc8f19d4600b46fb86b54062c86e76279cb0f74ac8e42
SHA512

c3411408609d08434bcd8ef34a3b9bbbc17b670d6400307dd87de9a1ac1c314ca87db2441073c30266ab051b8d3b0485e9399944c6dbd1989ddb8409b676ad43
SSDEEP

6144:PtBmb8WHz0L+GIIIIIIIhIIIIIIIIIIIIIIIU:lXmL

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 2 IoCs

resource	yara_rule
behavioral1/memory/2076-1-0x0000000000A30000-0x0000000000A88000-memory.dmp	family_xworm
behavioral1/memory/2340-6-0x0000000002BA0000-0x0000000002C20000-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
2340	powershell.exe
2244	powershell.exe
2768	powershell.exe
2788	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\XwormV6.lnk	SteamCRACKED_patched.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XwormV6.lnk	SteamCRACKED_patched.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
2340	powershell.exe
2244	powershell.exe
2768	powershell.exe
2788	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2076	SteamCRACKED_patched.exe
Token: SeDebugPrivilege	2340	powershell.exe
Token: SeDebugPrivilege	2244	powershell.exe
Token: SeDebugPrivilege	2768	powershell.exe
Token: SeDebugPrivilege	2788	powershell.exe
Token: SeDebugPrivilege	2076	SteamCRACKED_patched.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2076 wrote to memory of 2340	2076	SteamCRACKED_patched.exe	31
PID 2076 wrote to memory of 2340	2076	SteamCRACKED_patched.exe	31
PID 2076 wrote to memory of 2340	2076	SteamCRACKED_patched.exe	31
PID 2076 wrote to memory of 2244	2076	SteamCRACKED_patched.exe	33
PID 2076 wrote to memory of 2244	2076	SteamCRACKED_patched.exe	33
PID 2076 wrote to memory of 2244	2076	SteamCRACKED_patched.exe	33
PID 2076 wrote to memory of 2768	2076	SteamCRACKED_patched.exe	35
PID 2076 wrote to memory of 2768	2076	SteamCRACKED_patched.exe	35
PID 2076 wrote to memory of 2768	2076	SteamCRACKED_patched.exe	35
PID 2076 wrote to memory of 2788	2076	SteamCRACKED_patched.exe	37
PID 2076 wrote to memory of 2788	2076	SteamCRACKED_patched.exe	37
PID 2076 wrote to memory of 2788	2076	SteamCRACKED_patched.exe	37

C:\Users\Admin\AppData\Local\Temp\SteamCRACKED_patched.exe
"C:\Users\Admin\AppData\Local\Temp\SteamCRACKED_patched.exe"
1⤵
- Drops startup file
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2076
- 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\SteamCRACKED_patched.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2340
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'SteamCRACKED_patched.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2244
- 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:2768
- 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:2788

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
8a78869b6d7fa2c05553ca80a103fdfc

SHA1
7af41b8405e0c9c40fefd8232296a99bcd8fe84d

SHA256
09ea08582cc7eafa1e55c6aa8710fcd53f7c87847bd59f7a27f7d5153559e0e6

SHA512
6b50b3b42208583e125bb6fbc593bb58ad14b0f0520ef5fff696e2a95c6c8865a81a8a6dc31b2b4d54ffdc33a930f83ba4783521d7c783683e2835d52d6ee98e

Download Submit
memory/2076-0-0x000007FEF50F3000-0x000007FEF50F4000-memory.dmp

Filesize
4KB

Download
memory/2076-1-0x0000000000A30000-0x0000000000A88000-memory.dmp

Filesize
352KB

Download
memory/2076-32-0x000000001B0A0000-0x000000001B120000-memory.dmp

Filesize
512KB

Download
memory/2076-33-0x000007FEF50F3000-0x000007FEF50F4000-memory.dmp

Filesize
4KB

Download
memory/2244-14-0x000000001B530000-0x000000001B812000-memory.dmp

Filesize
2.9MB

Download
memory/2244-15-0x0000000002890000-0x0000000002898000-memory.dmp

Filesize
32KB

Download
memory/2340-6-0x0000000002BA0000-0x0000000002C20000-memory.dmp

Filesize
512KB

Download
memory/2340-7-0x000000001B6D0000-0x000000001B9B2000-memory.dmp

Filesize
2.9MB

Download
memory/2340-8-0x0000000001E90000-0x0000000001E98000-memory.dmp

Filesize
32KB

Download

Analysis

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