MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b39f3c488593f0c557a7888adc4f20853e3cd2f92f7b7e59c19fb7f69a3b50bb. 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: 17


Intelligence 17 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b39f3c488593f0c557a7888adc4f20853e3cd2f92f7b7e59c19fb7f69a3b50bb
SHA3-384 hash: 86987b85071eaf23a2216983177d45001d21e89d7c87ed6d17182e876589d93000e500de1bdbd6514025af7235d8d2ce
SHA1 hash: 3aaaf96140be84ce5f53f55fe4cf6d3017d6afe1
MD5 hash: d6d7b3cb39fbddccd99f34f68eb781ab
humanhash: lithium-shade-harry-golf
File name:Encrypted - Copie - Copie.exe
Download: download sample
Signature XWorm
Create hunting rule
File size:69'120 bytes
First seen:2025-08-16 10:26:25 UTC
Last seen:2025-08-16 11:18:36 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'642 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 1536:XTAa9vaJ+jFFpNhgjrNHjChupU2fiu+JwqDI3JQ4PzrbH82HPsg:XTJlHjFFThSHjYupUqiLJwYIZDzrb5PP
TLSH T10663C0912B9449A2F5FD0B738FB285475330A7D4982AEE4E24D872DD1C7F55CCAB0BA0
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10522/11/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter burger
Tags:exe xworm

Intelligence

File Origin
# of uploads :
2
# of downloads :
80
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Encrypted-Copie-Copie.exe
Verdict:
Malicious activity
Analysis date:
2025-08-16 10:15:45 UTC
Tags:
evasion auto-startup auto-reg
Link:
https://app.any.run/tasks/b15bb884-8309-446d-8639-570b4d41b16a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
XWorm
Create hunting rule
Link:
https://www.capesandbox.com/analysis/21644/
Detection(s):
Win.Dropper.LokiBot-10010685-0
Create hunting rule

Verdict:
Malicious
Score:
94.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68a05a508fd55a79c527c82b
Tags:
micro remo hype
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending an HTTP GET request
Creating a process with a hidden window
Creating a file
Launching a process
Connection attempt to an infection source
Creating a window
Query of malicious DNS domain
Enabling autorun by creating a file
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm cmstp fingerprint lolbin obfuscated obfuscated obfuscated packed packed packer_detected schtasks vbnet
Link:
https://www.filescan.io/uploads/68a05d3ca4bdac9f5b9982fd/reports/b95ed60b-c7c5-47df-9b85-5f32341a21fb/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/b39f3c488593f0c557a7888adc4f20853e3cd2f92f7b7e59c19fb7f69a3b50bb
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8e7842db-c8dc-4372-a7e3-11623eec9a79
Result
Threat name:
AsyncRAT, XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1758288
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
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Protects its processes via BreakOnTermination flag
Sample uses string decryption to hide its real strings
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Suricata IDS alerts for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AsyncRAT
Yara detected UAC Bypass using CMSTP
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1758288 Sample: Encrypted - Copie - Copie.exe Startdate: 16/08/2025 Architecture: WINDOWS Score: 100 48 employees-churches.gl.at.ply.gg 2->48 50 ip-api.com 2->50 52 insellerate.net 2->52 60 Suricata IDS alerts for network traffic 2->60 62 Found malware configuration 2->62 64 Malicious sample detected (through community Yara rule) 2->64 66 20 other signatures 2->66 8 Encrypted - Copie - Copie.exe 15 7 2->8         started        13 RobloxClient.exe 2->13         started        15 Encrypted - Copie - Copie.exe 2->15         started        17 4 other processes 2->17 signatures3 process4 dnsIp5 54 employees-churches.gl.at.ply.gg 147.185.221.30, 10480 SALSGIVERUS United States 8->54 56 ip-api.com 208.95.112.1, 49716, 49723, 80 TUT-ASUS United States 8->56 58 insellerate.net 104.40.65.56, 443, 49722 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 8->58 42 C:\ProgramData\RobloxClient.exe, PE32 8->42 dropped 44 C:\...ncrypted - Copie - Copie.exe, PE32 8->44 dropped 70 Protects its processes via BreakOnTermination flag 8->70 72 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->72 74 Adds a directory exclusion to Windows Defender 8->74 19 powershell.exe 23 8->19         started        22 powershell.exe 23 8->22         started        24 powershell.exe 23 8->24         started        26 7 other processes 8->26 76 Antivirus detection for dropped file 13->76 78 Multi AV Scanner detection for dropped file 13->78 46 C:\...ncrypted - Copie - Copie.exe.log, CSV 15->46 dropped file6 signatures7 process8 signatures9 68 Loading BitLocker PowerShell Module 19->68 28 conhost.exe 19->28         started        30 conhost.exe 22->30         started        32 conhost.exe 24->32         started        34 conhost.exe 26->34         started        36 conhost.exe 26->36         started        38 conhost.exe 26->38         started        40 3 other processes 26->40 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b39f3c488593f0c557a7888adc4f20853e3cd2f92f7b7e59c19fb7f69a3b50bb
Verdict:
inconclusive
YARA:
11 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.88 Win 32 Exe x86
Link:
https://app.malva.re/file/d6d7b3cb39fbddccd99f34f68eb781ab
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b39f3c488593f0c557a7888adc4f20853e3cd2f92f7b7e59c19fb7f69a3b50bb/
Verdict:
Malicious
Threat:
Backdoor.MSIL.XWorm
Link:
https://tip.neiki.dev/file/b39f3c488593f0c557a7888adc4f20853e3cd2f92f7b7e59c19fb7f69a3b50bb
Threat name:
ByteCode-MSIL.Downloader.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2025-08-16 10:15:45 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
29 of 38 (76.32%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=woptysefspymkv5hrcfnytzaqu7dzuxzf55x4wobt637ngr3kc5q._file
Verdict:
malicious
Label(s):
xworm
Create hunting rule
Similar samples:
error
XWorm
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Link:
https://tria.ge/reports/250816-mg3xdswxfx/
Behaviour
Suspicious use of AdjustPrivilegeToken
Looks up external IP address via web service
Verdict:
Malicious
Tags:
Win.Dropper.LokiBot-10010685-0 External_IP_Lookup
YARA:
n/a
Link:
https://app.threat.zone/submission/32b74339-c21e-439d-82ae-960026b3a46e
Unpacked files
SH256 hash:
b39f3c488593f0c557a7888adc4f20853e3cd2f92f7b7e59c19fb7f69a3b50bb
MD5 hash:
d6d7b3cb39fbddccd99f34f68eb781ab
SHA1 hash:
3aaaf96140be84ce5f53f55fe4cf6d3017d6afe1
Link:
https://www.unpac.me/results/0ad46d44-4c1b-4abc-835e-a615e19074f8/
SH256 hash:
ef0edbf5949f035086a468e103c39d9ff7079b6239b63009d4853bf3d3811d73
MD5 hash:
9c7efa1ff850482182380f6b0e96a8b0
SHA1 hash:
6fbf169e67d8a0fd53ab05f748741c0966d748eb
Detections:
win_xworm_w0
Create hunting rule
XWorm
Create hunting rule
win_xworm_bytestring
Create hunting rule
win_mal_XWorm
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
MALWARE_Win_AsyncRAT
Create hunting rule
MALWARE_Win_XWorm
Create hunting rule
Link:
https://www.unpac.me/results/0ad46d44-4c1b-4abc-835e-a615e19074f8/
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b39f3c488593/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:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
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
Cape
https://www.capesandbox.com/analysis/21644/

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 (HIGH_ENTROPY_VA)high

Comments