MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 c4bc5a3793428740358fc2ff16d527107f98754520b7faf8979ed1a6ecfd2dd2. 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: 21
| SHA256 hash: | c4bc5a3793428740358fc2ff16d527107f98754520b7faf8979ed1a6ecfd2dd2 |
|---|---|
| SHA3-384 hash: | 6940d5a0034bddebb666c9ffb0308bc2aaef8110b48caac5b153a648959b9fcee8cec1826d73824dfa4c73a1512883da |
| SHA1 hash: | b0fc046e9a89a329110d4185f8b2a7ab580d3197 |
| MD5 hash: | a7c0bf2c3329eacbd4a29e69d8e541d5 |
| humanhash: | alaska-kitten-fanta-mockingbird |
| File name: | a7c0bf2c3329eacbd4a29e69d8e541d5.exe |
| Download: | download sample |
| Signature | XWorm |
| File size: | 74'752 bytes |
| First seen: | 2025-08-17 09:45:30 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger) |
| ssdeep | 1536:zR9wtXZuWNvx3J3sWCJw0Z+b00mR/r6F+wOiFZTbN:wZfNvx5IwM+b0OBOofN |
| Threatray | 1'548 similar samples on MalwareBazaar |
| TLSH | T125738D0C3BE24A25E0FF6FB15DF6B256CB39E2534813D66F28C901D61623A98CD417E6 |
| 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 |  abuse_ch |
| Tags: | exe xworm |
Indicators Of Compromise (IOCs)
Below is a list of indicators of compromise (IOCs) associated with this malware samples.
| IOC | ThreatFox Reference |
|---|---|
| 47.239.1.95:16868 | https://threatfox.abuse.ch/ioc/1570394/ |
Intelligence
File Origin
# of uploads :
1
# of downloads :
83
Origin country :
NLVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
_c4bc5a3793428740358fc2ff16d527107f98754520b7faf8979ed1a6ecfd2dd2.exe
Verdict:
Malicious activity
Analysis date:
2025-08-17 09:47:59 UTC
Tags:
auto-startup auto-reg xworm
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
XWorm
Verdict:
Malicious
Score:
99.9%
Tags:
asyncrat autorun
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a custom TCP request
Connection attempt
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Launching a process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Setting a global event handler for the keyboard
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
anti-vm asyncrat base64 config-extracted fingerprint lolbin njrat obfuscated obfuscated reconnaissance schtasks vbnet xworm
Verdict:
Malicious
Labled as:
Jalapeno.Generic
Malware family:
XWorm
Verdict:
Malicious
Result
Threat name:
XWorm
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
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
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
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
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected XWorm
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Verdict:
XWorm
YARA:
16 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout RAT SOS: 0.96 Win 32 Exe x86 XWorm
Verdict:
Malicious
Threat:
Family.XWORM
Threat name:
ByteCode-MSIL.Backdoor.XWormRAT
Status:
Malicious
First seen:
2025-08-14 16:23:39 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
33 of 38 (86.84%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
xworm
Similar samples:
+ 1'538 additional samples on MalwareBazaar
Result
Malware family:
xworm
Score:
10/10
Tags:
family:xworm defense_evasion execution persistence rat trojan
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Adds Run key to start application
Checks computer location settings
Drops startup file
Executes dropped EXE
Command and Scripting Interpreter: PowerShell
Modifies trusted root certificate store through registry
Detect Xworm Payload
Xworm
Xworm family
Malware Config
C2 Extraction:
47.239.1.95:16868
Verdict:
Malicious
Tags:
rat xworm Win.Packed.njRAT-10002074-1
YARA:
MALWARE_Win_XWorm win_mal_XWorm win_xworm_bytestring
Unpacked files
SH256 hash:
c4bc5a3793428740358fc2ff16d527107f98754520b7faf8979ed1a6ecfd2dd2
MD5 hash:
a7c0bf2c3329eacbd4a29e69d8e541d5
SHA1 hash:
b0fc046e9a89a329110d4185f8b2a7ab580d3197
Detections:
win_xworm_w0
Malware family:
XWorm
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | ByteCode_MSIL_Backdoor_AsyncRAT |
|---|---|
| Author: | ReversingLabs |
| Description: | Yara rule that detects AsyncRAT backdoor. |
| Rule name: | Detect_PowerShell_Obfuscation |
|---|---|
| Author: | daniyyell |
| Description: | Detects obfuscated PowerShell commands commonly used in malicious scripts. |
| Rule name: | Disable_Defender |
|---|---|
| Author: | iam-py-test |
| Description: | Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA |
|---|---|
| Author: | ditekSHen |
| Description: | Detects Windows executables referencing non-Windows User-Agents |
| Rule name: | MALWARE_Win_AsyncRAT |
|---|---|
| Author: | ditekSHen |
| Description: | Detects AsyncRAT |
| Rule name: | MALWARE_Win_XWorm |
|---|---|
| Author: | ditekSHen |
| Description: | Detects XWorm |
| Rule name: | Multifamily_RAT_Detection |
|---|---|
| Author: | Lucas Acha (http://www.lukeacha.com) |
| Description: | Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | SUSP_DOTNET_PE_List_AV |
|---|---|
| Author: | SECUINFRA Falcon Team |
| Description: | Detecs .NET Binary that lists installed AVs |
| Rule name: | Sus_CMD_Powershell_Usage |
|---|---|
| Author: | XiAnzheng |
| Description: | May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP) |
| Rule name: | win_xworm_bytestring |
|---|---|
| Author: | Matthew @ Embee_Research |
| Description: | Detects bytestring present in unobfuscated xworm |
| Rule name: | win_xworm_w0 |
|---|---|
| Author: | jeFF0Falltrades |
| Description: | Detects win.xworm. |
| Rule name: | xworm |
|---|---|
| Author: | jeFF0Falltrades |
| Rule name: | XWorm |
|---|---|
| Author: | ditekSHen |
| Description: | Detects XWorm |
| Rule name: | xworm_kingrat |
|---|---|
| Author: | jeFF0Falltrades |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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 (HIGH_ENTROPY_VA) | high |
Comments
Login required
You need to login to in order to write a comment. Login with your abuse.ch account.RAT King Parser (https://github.com/jeFF0Falltrades/rat_king_parser) Output:
{
"sha256": "c4bc5a3793428740358fc2ff16d527107f98754520b7faf8979ed1a6ecfd2dd2",
"yara_possible_family": "xworm",
"key": "21f522ac6fc488aca2a5dc7a62e1f921f522ac6fc488aca2a5dc7a62e1f97400",
"salt": "None",
"config": {
"obfuscated_key_1": "47.239.1.95",
"obfuscated_key_2": "16868",
"obfuscated_key_3": "aa168168",
"obfuscated_key_4": "<Xwormmm>",
"obfuscated_key_5": 3,
"obfuscated_key_6": "7.18-ed",
"obfuscated_key_7": "USB.exe",
"obfuscated_key_8": "%AppData%",
"obfuscated_key_9": "lassm.exe",
"obfuscated_key_10": "dxGIAVeslmQUg3yD",
"obfuscated_key_11": "\\Log.tmp"
}
}