MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 e3ef1c4bd2a11cfbf55001d9581f3c10b881d6561bda19dab5b1a96f77c4fa89. 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
RustyStealer
Vendor detections: 15
| SHA256 hash: | e3ef1c4bd2a11cfbf55001d9581f3c10b881d6561bda19dab5b1a96f77c4fa89 |
|---|---|
| SHA3-384 hash: | 13ac0d9ba3dd29961c652f62438ed3a31d29179c7c4dd1b63cedfb879332f38ddb2416324297df95b5d47a0dc64bab91 |
| SHA1 hash: | c84618c3edf916d7c7014fee2c2d32a84fa4a54c |
| MD5 hash: | 4c1bb590f086209bec2f7b85b1e9faef |
| humanhash: | south-black-robin-alanine |
| File name: | vutil55_zwbhni.exe |
| Download: | download sample |
| Signature | RustyStealer |
| File size: | 2'977'280 bytes |
| First seen: | 2025-05-03 16:50:08 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 8da343ec6829a5c6443a15a70bef08f5 (1 x RustyStealer) |
| ssdeep | 49152:qL33GQXgBxuQsCVb29nb8X4/OaIAGnZO+r5EOoZgWpTh:puLenZFynpTh |
| Threatray | 37 similar samples on MalwareBazaar |
| TLSH | T1ADD539207B4E99AEC15AC074C2468BB2697130CB0F35BAFF459496783E79AF51F3C294 |
| 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 |  MAM |
| Tags: | exe RustyStealer |
Intelligence
File Origin
# of uploads :
1
# of downloads :
480
Origin country :
IDVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
vutil55_zwbhni.exe
Verdict:
Malicious activity
Analysis date:
2025-05-03 16:55:55 UTC
Tags:
possible-phishing xworm rust
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
91.7%
Tags:
stealer virus
Result
Verdict:
Malware
Maliciousness:
Behaviour
DNS request
Connection attempt
Sending a custom TCP request
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
adaptive-context anti-debug expand lolbin microsoft_visual_cc opendir opendir rust
Verdict:
Suspicious
Labled as:
Malware_45.9
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
Antivirus detection for URL or domain
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)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Suricata IDS alerts for network traffic
Suspicious powershell command line found
Yara detected XWorm
Behaviour
Behavior Graph:
Score:
99%
Verdict:
Malware
File Type:
PE
Threat name:
Win64.Trojan.Malgent
Status:
Malicious
First seen:
2025-05-03 16:50:43 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
12 of 24 (50.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
donut_injector
Similar samples:
+ 27 additional samples on MalwareBazaar
Result
Malware family:
xworm
Score:
10/10
Tags:
family:donutloader family:xworm loader rat trojan
Behaviour
Suspicious use of AdjustPrivilegeToken
Detect Xworm Payload
Detects DonutLoader
DonutLoader
Donutloader family
Xworm
Xworm family
Malware Config
C2 Extraction:
45.125.216.54:7000
Verdict:
Suspicious
Tags:
phishing
YARA:
n/a
Unpacked files
SH256 hash:
e3ef1c4bd2a11cfbf55001d9581f3c10b881d6561bda19dab5b1a96f77c4fa89
MD5 hash:
4c1bb590f086209bec2f7b85b1e9faef
SHA1 hash:
c84618c3edf916d7c7014fee2c2d32a84fa4a54c
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: | command_and_control |
|---|---|
| Author: | CD_R0M_ |
| Description: | This rule searches for common strings found by malware using C2. Based on a sample used by a Ransomware group |
| Rule name: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | pe_detect_tls_callbacks |
|---|
| Rule name: | ProgramLanguage_Rust |
|---|---|
| Author: | albertzsigovits |
| Description: | Application written in Rust programming language |
| Rule name: | reverse_http |
|---|---|
| Author: | CD_R0M_ |
| Description: | Identify strings with http reversed (ptth) |
| Rule name: | Rustyloader_mem_loose |
|---|---|
| Author: | James_inthe_box |
| Description: | Corroded buerloader |
| Reference: | https://app.any.run/tasks/83064edd-c7eb-4558-85e8-621db72b2a24 |
| Rule name: | SEH__vectored |
|---|---|
| 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.
No further information available
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 |
| CHECK_TRUST_INFO | Requires Elevated Execution (level:requireAdministrator) | high |
Reviews
| ID | Capabilities | Evidence |
|---|---|---|
| SS_API | Uses SS API | secur32.dll::AcceptSecurityContext secur32.dll::AcquireCredentialsHandleA secur32.dll::ApplyControlToken secur32.dll::DecryptMessage secur32.dll::DeleteSecurityContext secur32.dll::QueryContextAttributesW |
| WIN32_PROCESS_API | Can Create Process and Threads | kernel32.dll::CloseHandle kernel32.dll::CreateThread |
| WIN_BASE_API | Uses Win Base API | kernel32.dll::TerminateProcess kernel32.dll::LoadLibraryExW kernel32.dll::LoadLibraryA kernel32.dll::GetStartupInfoW kernel32.dll::GetCommandLineA kernel32.dll::GetCommandLineW |
| WIN_BASE_EXEC_API | Can Execute other programs | kernel32.dll::WriteConsoleW kernel32.dll::SetStdHandle kernel32.dll::GetConsoleMode kernel32.dll::GetConsoleOutputCP |
| WIN_BASE_IO_API | Can Create Files | kernel32.dll::CreateFileW ntdll.dll::NtCreateFile ntdll.dll::NtDeviceIoControlFile |
| WIN_BCRYPT_API | Can Encrypt Files | bcrypt.dll::BCryptGenRandom |
| WIN_CRYPT_API | Uses Windows Crypt API | crypt32.dll::CertAddCertificateContextToStore crypt32.dll::CertDuplicateCertificateChain crypt32.dll::CertDuplicateCertificateContext crypt32.dll::CertDuplicateStore crypt32.dll::CertEnumCertificatesInStore crypt32.dll::CertFreeCertificateChain |
| WIN_REG_API | Can Manipulate Windows Registry | ADVAPI32.dll::RegOpenKeyExW ADVAPI32.dll::RegQueryValueExW |
| WIN_SOCK_API | Uses Network to send and receive data | ws2_32.dll::bind ws2_32.dll::closesocket ws2_32.dll::connect ws2_32.dll::freeaddrinfo ws2_32.dll::getaddrinfo ws2_32.dll::getpeername |
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