MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5d3f76dc4c4191ac7baa3ba130abdce26bef47962e7c33645e0a30dd6635eeab. 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: 13


Intelligence 13 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5d3f76dc4c4191ac7baa3ba130abdce26bef47962e7c33645e0a30dd6635eeab
SHA3-384 hash: d6b4a381fa3a08a0a70e413975c16548753df7fbef20ffbf6b84676234d1990ec0db74a1af2627b9ecdf9c12c0599c34
SHA1 hash: 5da381243e460e32388f1f0f33988e98ff3cc38f
MD5 hash: b08e25b2e7527dd37baa4352cf143f81
humanhash: wisconsin-video-friend-pip
File name:fXWlfxf.exe
Download: download sample
Signature XWorm
Create hunting rule
File size:276'992 bytes
First seen:2025-01-21 20:34:54 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 77784124f62560a597395f4a78869cb4 (3 x VIPKeylogger, 1 x XWorm)
ssdeep 3072:+qom4DMrhHWjYyEH4SeeSy7ZCyRlhGSrt1QEiaZiPm2s1P783FzHkAnOfGPxwq6T:+qomfYSerypDGSB1sqq6Ys0M
Threatray 3 similar samples on MalwareBazaar
TLSH T11F445D07A6F408B4DCB6C33B45427519A5B3B8C123B1EEAB97522E2F1F937907839791
TrID 48.7% (.EXE) Win64 Executable (generic) (10522/11/4)
23.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
9.3% (.EXE) OS/2 Executable (generic) (2029/13)
9.2% (.EXE) Generic Win/DOS Executable (2002/3)
9.2% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
Reporter aachum
Tags:exe xworm


Avatar
iamaachum
185.215.113.39/files/5589760584/fXWlfxf.exe

XWorm C2: 83.151.14.2:9572

Intelligence

File Origin
# of uploads :
1
# of downloads :
352
Origin country :
ES ES
Vendor Threat Intelligence
Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=679006a8b5602ee8cdaec0e9
Tags:
dropper
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Searching for the window
Launching a process
Сreating synchronization primitives
Creating a process with a hidden window
Creating a window
Connection attempt
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Setting a global event handler for the keyboard
Unauthorized injection to a system process
Adding an exclusion to Microsoft Defender
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context cmd csc explorer ilasm installutil jsc lolbin microsoft_visual_cc msbuild packed regasm regedit regsvcs vbc wab xworm
Link:
https://www.filescan.io/uploads/679004f968aea1ce74a418aa/reports/29daa145-fbcf-4185-a398-45be2fda1192/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/5d3f76dc4c4191ac7baa3ba130abdce26bef47962e7c33645e0a30dd6635eeab
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/6c03c8a7-4096-4fef-a8e2-588eee4ffa07
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1596249
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Allocates memory in foreign processes
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
Creates multiple autostart registry keys
Found malware configuration
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
Machine Learning detection for 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: Powershell Base64 Encoded MpPreference Cmdlet
Suricata IDS alerts for network traffic
Writes to foreign memory regions
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1596249 Sample: fXWlfxf.exe Startdate: 21/01/2025 Architecture: WINDOWS Score: 100 61 Suricata IDS alerts for network traffic 2->61 63 Found malware configuration 2->63 65 Malicious sample detected (through community Yara rule) 2->65 67 10 other signatures 2->67 8 fXWlfxf.exe 1 5 2->8         started        12 SecurityAgent.exe 1 5 2->12         started        14 PrintUtility.exe 2->14         started        16 4 other processes 2->16 process3 file4 47 C:\Users\user\AppData\...\SecurityAgent.exe, PE32+ 8->47 dropped 49 C:\...\SecurityAgent.exe:Zone.Identifier, ASCII 8->49 dropped 77 Creates multiple autostart registry keys 8->77 79 Writes to foreign memory regions 8->79 81 Allocates memory in foreign processes 8->81 18 AddInProcess32.exe 4 8->18         started        22 conhost.exe 8->22         started        51 C:\Users\user\AppData\...\PrintUtility.exe, PE32+ 12->51 dropped 53 C:\Users\...\PrintUtility.exe:Zone.Identifier, ASCII 12->53 dropped 83 Injects a PE file into a foreign processes 12->83 24 conhost.exe 12->24         started        26 AddInProcess32.exe 12->26         started        85 Multi AV Scanner detection for dropped file 14->85 87 Machine Learning detection for dropped file 14->87 34 2 other processes 14->34 55 C:\Users\user\AppData\...\UpdateHelper.exe, PE32+ 16->55 dropped 57 C:\Users\...\UpdateHelper.exe:Zone.Identifier, ASCII 16->57 dropped 28 WerFault.exe 21 16->28         started        30 conhost.exe 16->30         started        32 AddInProcess32.exe 16->32         started        36 7 other processes 16->36 signatures5 process6 dnsIp7 59 83.151.14.2, 49773, 49992, 49993 INTELSET-ASKazanTatarstanRussiaRU Russian Federation 18->59 69 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 18->69 71 Bypasses PowerShell execution policy 18->71 73 Adds a directory exclusion to Windows Defender 18->73 38 powershell.exe 23 18->38         started        41 powershell.exe 21 18->41         started        signatures8 process9 signatures10 75 Loading BitLocker PowerShell Module 38->75 43 conhost.exe 38->43         started        45 conhost.exe 41->45         started        process11
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/5d3f76dc4c4191ac7baa3ba130abdce26bef47962e7c33645e0a30dd6635eeab
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5d3f76dc4c4191ac7baa3ba130abdce26bef47962e7c33645e0a30dd6635eeab/
Threat name:
Win64.Backdoor.Xworm
Create hunting rule
Status:
Suspicious
First seen:
2025-01-21 20:03:17 UTC
File Type:
PE+ (Exe)
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=lu7xnxcmigi2y65khoqtbk644jv66r4wfz6dgzc6biyn2zrv52vq._file
Verdict:
malicious
Label(s):
xworm
Create hunting rule
Similar samples:
5d3f76dc4c4191ac7baa3ba130abdce26bef47962e7c33645e0a30dd6635eeab
XWorm
b541d2f2c3ea6e6f3cb26bba9bf36a0034a01cbb225e794c94ff957d09991e77
XWorm
error
XWorm
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm discovery execution persistence rat trojan
Link:
https://tria.ge/reports/250121-zcz16azngp/
Behaviour
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Adds Run key to start application
Command and Scripting Interpreter: PowerShell
Detect Xworm Payload
Xworm
Xworm family
Malware Config
C2 Extraction:
83.151.14.2:9572
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/4b089ea4-dbce-425a-8f02-f3dd4436b228
Unpacked files
SH256 hash:
5d3f76dc4c4191ac7baa3ba130abdce26bef47962e7c33645e0a30dd6635eeab
MD5 hash:
b08e25b2e7527dd37baa4352cf143f81
SHA1 hash:
5da381243e460e32388f1f0f33988e98ff3cc38f
Link:
https://www.unpac.me/results/715476b9-9561-4827-9bf5-84d659a43bd4/
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/5d3f76dc4c41/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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:NET
Create hunting rule
Author:malware-lu
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)
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information

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

Web download

XWorm

Executable exe 5d3f76dc4c4191ac7baa3ba130abdce26bef47962e7c33645e0a30dd6635eeab

(this sample)

  
Link
https://tria.ge/250121-y3grtsyqfv/
  
Dropped by
Amadey
  
Delivery method
Distributed via web download

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
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high
Reviews
IDCapabilitiesEvidence
COM_BASE_APICan Download & Execute componentsole32.dll::CreateStreamOnHGlobal
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteA
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessA
WININET.dll::InternetCloseHandle
KERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineA
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::FreeConsole
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileA
KERNEL32.dll::CreateDirectoryA
KERNEL32.dll::CreateFileW
KERNEL32.dll::GetWindowsDirectoryA
KERNEL32.dll::GetSystemDirectoryW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExA
ADVAPI32.dll::RegSetValueExA

Comments