MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 1a787f42e130fc6ed45415bd9aafce8935489e4a45181c7cd696a85f1209bc04. 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: 19
| SHA256 hash: | 1a787f42e130fc6ed45415bd9aafce8935489e4a45181c7cd696a85f1209bc04 |
|---|---|
| SHA3-384 hash: | 3529958b9ce5cb18600cb7e12d88619240bbdf0a5925c8b6c2aa41364769751cc072ed94ab8d1a45bf658f89b40d8fbe |
| SHA1 hash: | 6dc914e39b109b981eb76e75c3f2e0a74286d39a |
| MD5 hash: | e477131eab7f1a76d528f47c06440062 |
| humanhash: | burger-harry-mountain-berlin |
| File name: | yazi,pdf.exe |
| Download: | download sample |
| Signature | XWorm |
| File size: | 506'880 bytes |
| First seen: | 2025-09-17 07:10:13 UTC |
| Last seen: | 2025-10-10 06:52:05 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'610 x Formbook, 12'242 x SnakeKeylogger) |
| ssdeep | 12288:VBJx7untvfhIPQvZX/9mxGaPfrNd+XBcz/ArBLEhs:VBv7wpfyIvZX/9mxtDMaErBLEhs |
| Threatray | 1'578 similar samples on MalwareBazaar |
| TLSH | T11BB4F158235BEC17D4821FF01970D3B10278AED9E911D3579FFEADEBB82531528682E2 |
| TrID | 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.0% (.EXE) Win64 Executable (generic) (10522/11/4) 6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.2% (.EXE) Win32 Executable (generic) (4504/4/1) 1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23) |
| 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 |
|---|---|
| 196.251.92.95:1989 | https://threatfox.abuse.ch/ioc/1593294/ |
Intelligence
File Origin
# of uploads :
3
# of downloads :
114
Origin country :
NLVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
yazi,pdf.exe
Verdict:
Malicious activity
Analysis date:
2025-09-17 07:21:41 UTC
Tags:
evasion xworm crypto-regex remote
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
XWorm
Verdict:
Malicious
Score:
96.5%
Tags:
virus micro msil
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Launching a process
Creating a file
Sending a custom TCP request
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
Setting a global event handler for the keyboard
Unauthorized injection to a system process
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
base64 bitmap confuserex lolbin msbuild obfuscated packed packed reconnaissance regsvcs roboski schtasks stego vbc vbnet
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-17T02:39:00Z UTC
Last seen:
2025-09-17T02:39:00Z UTC
Hits:
~1000
Malware family:
XWorm
Verdict:
Malicious
Result
Threat name:
AsyncRAT, XWorm
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Allocates memory in foreign processes
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
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Suricata IDS alerts for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected AsyncRAT
Yara detected XWorm
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.29 Win 32 Exe x86
Threat name:
Win32.Trojan.AgentTesla
Status:
Malicious
First seen:
2025-09-17 07:11:28 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
20 of 24 (83.33%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
unc_loader_037
xworm
Similar samples:
+ 1'568 additional samples on MalwareBazaar
Result
Malware family:
xworm
Score:
10/10
Tags:
family:xworm discovery rat trojan
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Looks up external IP address via web service
Detect Xworm Payload
Xworm
Xworm family
Malware Config
C2 Extraction:
196.251.92.95:1989
Verdict:
Malicious
Tags:
External_IP_Lookup
YARA:
n/a
Unpacked files
SH256 hash:
1a787f42e130fc6ed45415bd9aafce8935489e4a45181c7cd696a85f1209bc04
MD5 hash:
e477131eab7f1a76d528f47c06440062
SHA1 hash:
6dc914e39b109b981eb76e75c3f2e0a74286d39a
SH256 hash:
1041b538ccbc7d66e59247ef7551cde9b6c282843541585e9190a8e2e3943b12
MD5 hash:
e870d1e8f3791ccc141f85f40fd2972b
SHA1 hash:
150919ee289cffa6feb40ab8261f620dd7e26aac
SH256 hash:
7c879780fb049f781352392ad66dde45ac1f3d50c0212bec09597142094c09ab
MD5 hash:
9a7b8d934f5c3c2c572072f198cdf05e
SHA1 hash:
1802b37f8a0f0e2566565f80fce9c0281b378427
Detections:
win_xworm_a0
win_xworm_w0
win_xworm_bytestring
win_mal_XWorm
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
MALWARE_Win_AsyncRAT
MALWARE_Win_XWorm
SH256 hash:
deff90f34bf549861d3d95fb4f49a5bc8566b5629ef106efaffa7fc507f807fb
MD5 hash:
e48366e75cf971b2c039b643acb1d9d1
SHA1 hash:
53730e473223c7b3c04e3cf7317439b456bc7067
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
SUSP_OBF_NET_Reactor_Indicators_Jan24
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: | CP_AllMal_Detector |
|---|---|
| Author: | DiegoAnalytics |
| Description: | CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication |
| Rule name: | DebuggerCheck__RemoteAPI |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| 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: | EXE_RAT_XWorm_April2024 |
|---|---|
| Author: | Yashraj Solanki - Cyber Threat Intelligence Analyst at Bridewell |
| 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: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | NETexecutableMicrosoft |
|---|---|
| Author: | malware-lu |
| Rule name: | Njrat |
|---|---|
| Author: | botherder https://github.com/botherder |
| Description: | Njrat |
| 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: | Windows_Trojan_XWorm_b7d6eaa8 |
|---|---|
| Author: | Elastic Security |
| 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: | 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.
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