MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 638fedc33509774d58321f5df4457476725e2b3496c7b8cda67cffbb71d15511. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry

XWorm

Vendor detections: 18

Intelligence 18 IOCs 1 YARA 5 File information Comments

SHA256 hash:	638fedc33509774d58321f5df4457476725e2b3496c7b8cda67cffbb71d15511
SHA3-384 hash:	7faa2f26ca6ededa93adc298594ded1d186e5b14c1e5650b8641a940f7bdb86c8932cdb37b56f95e1f7d2c089cd00529
SHA1 hash:	c71274cfb0649f8c199ba931b97c8f66f6bf6504
MD5 hash:	2fe10edfe6119722deca42d0cc3376b4
humanhash:	shade-nine-blossom-lion
File name:	2fe10edfe6119722deca42d0cc3376b4.exe
Download:	download sample
Signature	XWorm Create hunting rule
File size:	854'631 bytes
First seen:	2025-08-15 15:45:30 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	112bfbb18727302cb5425c20a464b02e (52 x XWorm, 2 x AsyncRAT)
ssdeep	24576:qKqpCZGE96zN4tqEKmJM60PkE16YeGVBhEv748BdEU9RcxPSi7OWBBJfwCVVQNIH:T0oi
Threatray	43 similar samples on MalwareBazaar
TLSH	T16405AD066AEC01FAD2A2D33989E25942D7F73D5793055FCB02D58E4A3E9B1D0E87E324
TrID	33.5% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5) 21.3% (.EXE) Win64 Executable (generic) (10522/11/4) 13.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 10.2% (.EXE) Win16 NE executable (generic) (5038/12/1) 9.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika	pebin
Reporter	abuse_ch
Tags:	exe xworm

abuse_ch

XWorm C2:
147.185.221.30:39982

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOC	ThreatFox Reference
147.185.221.30:39982	https://threatfox.abuse.ch/ioc/1568660/

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

2fe10edfe6119722deca42d0cc3376b4.exe

Verdict:

Malicious activity

Analysis date:

2025-08-15 16:26:26 UTC

Tags:

auto-startup auto-reg pastebin xworm remote

Link:

https://app.any.run/tasks/19d8dcbd-f6c5-48ca-a1e9-2d3b75b0d871

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

XWorm

Link:

https://www.capesandbox.com/analysis/21580/

Verdict:

Malicious

Score:

97.4%

Link:

https://cyber-fortress.com/docs/result/index.php?id=689f56318fd55a79c5274104

Tags:

asyncrat autorun

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a file

Creating a process from a recently created file

Enabling the 'hidden' option for recently created files

Creating a file in the %temp% subdirectories

Modifying an executable file

Сreating synchronization primitives

Creating a file in the Program Files subdirectories

DNS request

Connection attempt

Sending a custom TCP request

Unauthorized injection to a recently created process

Enabling autorun with the shell\open\command registry branches

Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch

Infecting executable files

Enabling autorun by creating a file

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

fingerprint microsoft_visual_cc threat

Link:

https://www.filescan.io/uploads/689f5629419c816a6e88625c/reports/a9acf64e-2c54-4088-8ba4-deee5a6cd54c/overview

Verdict:

Malicious

Labled as:

Trojan.Generic

Link:

https://www.hybrid-analysis.com/sample/638fedc33509774d58321f5df4457476725e2b3496c7b8cda67cffbb71d15511

Malware family:

XWorm

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/b1ff9beb-2cb6-4c5e-87a4-953a537680e4

Result

Threat name:

XWorm

Detection:

malicious

Classification:

spre.troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1758047

Signature

.NET source code contains method to dynamically call methods (often used by packers)

.NET source code contains potential unpacker

Antivirus detection for dropped file

C2 URLs / IPs found in malware configuration

Connects to a pastebin service (likely for C&C)

Creates an undocumented autostart registry key

Drops executable to a common third party application directory

Drops or copies MsMpEng.exe (Windows Defender, likely to bypass HIPS)

Drops PE files to the document folder of the user

Found malware configuration

Infects executable files (exe, dll, sys, html)

Joe Sandbox ML detected suspicious sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)

Sample uses string decryption to hide its real strings

Sigma detected: Files With System Process Name In Unsuspected Locations

Sigma detected: System File Execution Location Anomaly

Suricata IDS alerts for network traffic

Yara detected XWorm

Behaviour

Behavior Graph:

Download SVG

Score:

99%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/638fedc33509774d58321f5df4457476725e2b3496c7b8cda67cffbb71d15511

Verdict:

inconclusive

YARA:

4 match(es)

Tags:

Executable PDB Path PE (Portable Executable) PE File Layout Win 64 Exe x64

Link:

https://app.malva.re/file/2fe10edfe6119722deca42d0cc3376b4

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/638fedc33509774d58321f5df4457476725e2b3496c7b8cda67cffbb71d15511/

Verdict:

Malicious

Threat:

Family.XWORM

Link:

https://tip.neiki.dev/file/638fedc33509774d58321f5df4457476725e2b3496c7b8cda67cffbb71d15511

Threat name:

Win64.Backdoor.XWorm

Status:

Malicious

First seen:

2025-08-13 18:00:00 UTC

File Type:

PE+ (Exe)

Extracted files:

AV detection:

28 of 36 (77.78%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=moh63qzvbf3u2wbsd5o7irluozzf4kzus3d3rtngpt73w4orkuiq._file

Verdict:

malicious

Label(s):

xworm

XWorm

579b04f0fa02ca5bf210810537b84e5df5f4e2107eaa5d2cb75ea607e2d902df

XWorm

be34b3aa420900cab489653a2a950f5643477b91a5cee9362e0c7d14a33d2417

XWorm

df01277b9c75da397043c864dbd98c3d602598afd6f5a35da493bfb502944b79

XWorm

e7fc59b19c11575635089fae0012cd839ea80c717601bf72b9be8c2cb04dba54

XWorm

error

XWorm

+ 33 additional samples on MalwareBazaar

Result

Malware family:

xworm

Score:

10/10

Tags:

family:xworm persistence rat spyware stealer trojan

Link:

https://tria.ge/reports/250815-s7fsfayl18/

Behaviour

Modifies registry class

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Drops file in Program Files directory

Adds Run key to start application

Enumerates connected drives

Legitimate hosting services abused for malware hosting/C2

Drops startup file

Executes dropped EXE

Modifies system executable filetype association

Reads user/profile data of web browsers

Detect Xworm Payload

Xworm

Xworm family

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/1883ce41-013b-43a6-8a3f-aa996f4b7197

Unpacked files

SH256 hash:

638fedc33509774d58321f5df4457476725e2b3496c7b8cda67cffbb71d15511

MD5 hash:

2fe10edfe6119722deca42d0cc3376b4

SHA1 hash:

c71274cfb0649f8c199ba931b97c8f66f6bf6504

Link:

https://www.unpac.me/results/2c19b3c2-0118-478c-989a-577730ffbacf/

SH256 hash:

1b98af6d553d24323426219f4e43ce6141e6d6d7ec73ad2cc5e553c431524559

MD5 hash:

910ad1afbf539ee19dcfc0f467a34b37

SHA1 hash:

6ac4ea2a9686067dd90ba3166c5196ebdf520021

Link:

https://www.unpac.me/results/2c19b3c2-0118-478c-989a-577730ffbacf/

Malware family:

XWorm

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/638fedc33509/report/overview.html

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/638fedc33509774d58321f5df4457476725e2b3496c7b8cda67cffbb71d15511

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:	cobalt_strike_tmp01925d3f Create hunting rule
Author:	The DFIR Report
Description:	files - file ~tmp01925d3f.exe
Reference:	https://thedfirreport.com

Rule name:	DebuggerCheck__API Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	golang_bin_JCorn_CSC846 Create hunting rule
Author:	Justin Cornwell
Description:	CSC-846 Golang detection ruleset

Rule name:	meth_stackstrings Create hunting rule
Author:	Willi Ballenthin

Rule name:	Sus_Obf_Enc_Spoof_Hide_PE Create hunting rule
Author:	XiAnzheng
Description:	Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape

https://www.capesandbox.com/analysis/21580/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (GUARD_CF)	high

Reviews

ID	Capabilities	Evidence
WIN32_PROCESS_API	Can Create Process and Threads	KERNEL32.dll::CreateProcessW KERNEL32.dll::CloseHandle
WIN_BASE_API	Uses Win Base API	KERNEL32.dll::TerminateProcess KERNEL32.dll::LoadLibraryExW KERNEL32.dll::GetDriveTypeA KERNEL32.dll::GetStartupInfoW KERNEL32.dll::GetCommandLineW KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_API	Can Execute other programs	KERNEL32.dll::WriteConsoleW KERNEL32.dll::ReadConsoleW KERNEL32.dll::SetStdHandle KERNEL32.dll::GetConsoleOutputCP KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_API	Can Create Files	KERNEL32.dll::CopyFileA KERNEL32.dll::CreateDirectoryW KERNEL32.dll::CreateFileA KERNEL32.dll::CreateFileW KERNEL32.dll::DeleteFileW KERNEL32.dll::GetFileAttributesA
WIN_REG_API	Can Manipulate Windows Registry	ADVAPI32.dll::RegCreateKeyExA ADVAPI32.dll::RegSetValueExA

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