xworm | 456ba538a6fa8751897a9a76aa88d69c0c01011af42a1a8f331204978424f456

Analysis

max time kernel
147s
max time network
126s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
05/06/2024, 01:25

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General

Target
XWorm V5.4/Icons/XClient.exe
Size 162KB
Sample240605-btgddaaa51
SHA256 2c177b01f77136c9f18b106a80d9a8cbe95e8232eeeac1df7061eb096cdd4d56
MD5 f5f1d328ac2502686cd9a12b936daa75
SHA1 d8a6c77022d413ddadda8036e41ba803b0664efd
SHA512 0c215316df54bd82a7997f3a841c83f72751efa1eadb6c7d07ca624a0a59c8217dd54e4a3de498b8d1b23cfcb99a4179163545bd2720cd3db1d6610f521dfb27
SSDEEP 3072:TZ63JEGojxvVMnbO6uhzfrOxGkBz65/M6If+3Js+3JFkKeTnF:VUJVC9qbGRexBt25
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

127.0.0.1:7000

Attributes

install_file
USB.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral13/memory/2204-1-0x0000000001000000-0x000000000102E000-memory.dmp	family_xworm

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

Detects Windows executables referencing non-Windows User-Agents 1 IoCs

resource	yara_rule
behavioral13/memory/2204-1-0x0000000001000000-0x000000000102E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2780	powershell.exe
2804	powershell.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 3 IoCs

pid	Process
2780	powershell.exe
2804	powershell.exe
2204	XClient.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2204	XClient.exe
Token: SeDebugPrivilege	2780	powershell.exe
Token: SeDebugPrivilege	2804	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2204	XClient.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 2780	2204	XClient.exe	29
PID 2204 wrote to memory of 2780	2204	XClient.exe	29
PID 2204 wrote to memory of 2780	2204	XClient.exe	29
PID 2204 wrote to memory of 2804	2204	XClient.exe	31
PID 2204 wrote to memory of 2804	2204	XClient.exe	31
PID 2204 wrote to memory of 2804	2204	XClient.exe	31

C:\Users\Admin\AppData\Local\Temp\XWorm V5.4\Icons\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XWorm V5.4\Icons\XClient.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2204
- 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\XWorm V5.4\Icons\XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2780
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2804

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

590aee7bdd69b59b.customDestinations-ms

Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
Size 7KB
SHA256 f38440922dbd68ff591ad39ae7f7888cad58e8a65bd2dd68917d68211dc04efd
MD5 cf81cd18ef9a0c7467b1df53a719ebea
SHA1 b5be64c9c5fd48fd2aa4d4ec90168b8ca17e9314
SHA512 7aa291547af4a9736c2c4f185361446a8bcb2b5726a73bca59c5cdb9c2687d7b0b3650590d9de3fb88afd48138e1093a91aa6c97b89b04dc2e3833055f85f680
SSDEEP 96:SvJaCdM86nqvsqvJCwoDvJaCdM86nqvsEHyqvJCworDszZQH0J7DNXlUVC:EPeUoVPeAHnorD+NJ7DNZ
MD5 SHA1 SHA512 SSDEEP

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memory/2204-0-0x000007FEF58E3000-0x000007FEF58E4000-memory.dmp

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memory/2204-1-0x0000000001000000-0x000000000102E000-memory.dmp

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memory/2204-2-0x000007FEF58E0000-0x000007FEF62CC000-memory.dmp

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memory/2204-16-0x000007FEF58E3000-0x000007FEF58E4000-memory.dmp

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memory/2204-17-0x000007FEF58E0000-0x000007FEF62CC000-memory.dmp

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memory/2780-7-0x000000001B730000-0x000000001BA12000-memory.dmp

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memory/2780-8-0x0000000001D80000-0x0000000001D88000-memory.dmp

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memory/2804-14-0x000000001B690000-0x000000001B972000-memory.dmp

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memory/2804-15-0x0000000001EF0000-0x0000000001EF8000-memory.dmp

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