xworm | e38c9eb5ca2d9e9f287e914cc3b6c667cb64aaa4251671e268d741b95da2dd80

General

Target

WizWorm (Modified XWorm)/WizWorm.exe
Size

99KB
MD5

a9b00ac5f9c02e540c61381a5fae62c3
SHA1

273e272cc73d519c5cba2839de4e6043fd8977b0
SHA256

3ad4aa1921b844c635bbeef2a492a3d1ff134af6a38a1c31d7d264da3e192a38
SHA512

924316a6cd0b91617d23010cc031ccbc1a99c4d72f9199fb3215d68ae6ea6cc9c3a4888777bf4c72d920d940e68b828a4ede75c299a5f7b7f804250cea4ae570
SSDEEP

1536:n1vP5KmktoR0wQNB+QC+ZMh/uFPah6x2C4bFwOL/n6106/Y7FwoOLTrXatVSFayK:VxLCLN06PahfLbFZL/6PWZOL6GPPy

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

C2

auto-london.gl.at.ply.gg:51655

Attributes

Install_directory
%LocalAppData%
install_file
NigNigRat.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2580-1-0x0000000000C30000-0x0000000000C4E000-memory.dmp	family_xworm

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

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

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

execution

PowerShell

T1059.001

pid	Process
4688	powershell.exe
2240	powershell.exe
1924	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-701583114-2636601053-947405450-1000\Control Panel\International\Geo\Nation	WizWorm.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
18	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 2 IoCs

pid	Process
4688	powershell.exe
4688	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2580	WizWorm.exe
Token: SeDebugPrivilege	4688	powershell.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2580 wrote to memory of 4688	2580	WizWorm.exe	85
PID 2580 wrote to memory of 4688	2580	WizWorm.exe	85

C:\Users\Admin\AppData\Local\Temp\WizWorm (Modified XWorm)\WizWorm.exe
"C:\Users\Admin\AppData\Local\Temp\WizWorm (Modified XWorm)\WizWorm.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2580
- 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\WizWorm (Modified XWorm)\WizWorm.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4688
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'WizWorm.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  PID:2240
- 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\WizWorm.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  PID:1924

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
bd5940f08d0be56e65e5f2aaf47c538e

SHA1
d7e31b87866e5e383ab5499da64aba50f03e8443

SHA256
2d2f364c75bd2897504249f42cdf1d19374f5230aad68fa9154ea3d03e3031a6

SHA512
c34d10c7e07da44a180fae9889b61f08903aa84e8ddfa80c31c272b1ef9d491b8cec6b8a4c836c3cb1583fe8f4955c6a8db872515de3a9e10eae09610c959406

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
c1b0a9f26c3e1786191e94e419f1fbf9

SHA1
7f3492f4ec2d93e164f43fe2606b53edcffd8926

SHA256
796649641966f606d7217bb94c5c0a6194eef518815dacc86feacdd78d3c1113

SHA512
fa0290d77372c26a2f14cb9b0002c222bc757ce7ad02516b884c59a1108f42eb4c76884f9edb6c7149f7c3fac917eda99b72a3b1d72b7e118a1d5a73cadd15a8

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mgqsssto.klh.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2580-0-0x00007FFDFE603000-0x00007FFDFE605000-memory.dmp

Filesize
8KB

Download
memory/2580-1-0x0000000000C30000-0x0000000000C4E000-memory.dmp

Filesize
120KB

Download
memory/2580-2-0x00007FFDFE600000-0x00007FFDFF0C1000-memory.dmp

Filesize
10.8MB

Download
memory/4688-3-0x00000196422E0000-0x0000019642302000-memory.dmp

Filesize
136KB

Download
memory/4688-9-0x00007FFDFE600000-0x00007FFDFF0C1000-memory.dmp

Filesize
10.8MB

Download
memory/4688-14-0x00007FFDFE600000-0x00007FFDFF0C1000-memory.dmp

Filesize
10.8MB

Download
memory/4688-15-0x00007FFDFE600000-0x00007FFDFF0C1000-memory.dmp

Filesize
10.8MB

Download
memory/4688-18-0x00007FFDFE600000-0x00007FFDFF0C1000-memory.dmp

Filesize
10.8MB

Download

Analysis

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