MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9d4fe788dfdfe7f9bc6ae255e5a8492f29acc65a18fbc8513c63b69f6c23aafb. 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: 13


Intelligence 13 IOCs YARA 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 9d4fe788dfdfe7f9bc6ae255e5a8492f29acc65a18fbc8513c63b69f6c23aafb
SHA3-384 hash: 4b2d6fd5878044d991f162243a9250b530f7cffd408d279260cf360533c1c83368b0941de72c2633bf8600cda019fe2d
SHA1 hash: bb66225c71d8798eb72845408cd81a476b2de58c
MD5 hash: 20a974b4384cee05f7898fee127e1d43
humanhash: oklahoma-florida-india-item
File name:20a974b4384cee05f7898fee127e1d43.exe
Download: download sample
Signature RustyStealer
Create hunting rule
File size:5'369'505 bytes
First seen:2025-05-08 05:23:38 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 6fb30a3f36cc47da33b89e63d1548d1e (4 x RustyStealer)
ssdeep 49152:7c5PSUsvom682pl78YxFW/VnL2KtLqk4crxbjezujz6lLGj3qZl8Cu1SLV14WCE4:gmtt0c70GWAE7gMOIO2HIBEpVZo
TLSH T13D465B03F69681EDC0AEC179875B9333FA32B88D4534B66B5BD48B222E15F609F4D718
TrID 41.1% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
26.1% (.EXE) Win64 Executable (generic) (10522/11/4)
12.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.1% (.ICL) Windows Icons Library (generic) (2059/9)
5.0% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter abuse_ch
Tags:exe RustyStealer

Intelligence

File Origin
# of uploads :
1
# of downloads :
402
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
amadey
Create hunting rule
ID:
1
File name:
WEXTRACT.exe
Verdict:
Malicious activity
Analysis date:
2025-05-08 03:12:33 UTC
Tags:
amadey botnet stealer loader uac arch-exec auto-reg lumma telegram autoit evasion themida rdp stegocampaign payload ta558 apt reverseloader gcleaner
Link:
https://app.any.run/tasks/606b5b57-a22e-4eb4-8aa4-178812032f4d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Malware.Malwarex-10043756-0
Create hunting rule

Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=681c406691991ead82b60fa7
Tags:
dropper virus sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a file in the %temp% directory
Creating a file in the %AppData% subdirectories
Launching a process
Enabling the 'hidden' option for recently created files
Creating a file
Behavior that indicates a threat
DNS request
Connection attempt
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Searching for synchronization primitives
Creating a window
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Setting a single autorun event
Launching a tool to kill processes
Stealing user critical data
Enabling autorun
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context anti-debug anti-vm cmdkey crypto evasive expand fingerprint lolbin overlay packed remote stealer
Link:
https://www.filescan.io/uploads/681c3ffcbab2591d0654ca84/reports/6c552682-5413-449f-9861-8397a3596a74/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/9d4fe788dfdfe7f9bc6ae255e5a8492f29acc65a18fbc8513c63b69f6c23aafb
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/77b1e381-687b-49d9-bd6c-5fdac9d77262
Result
Threat name:
PRYSMAX STEALER
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1684240
Signature
Attempt to bypass Chrome Application-Bound Encryption
Creates a Image File Execution Options (IFEO) Debugger entry
Creates an undocumented autostart registry key
Creates multiple autostart registry keys
Excessive usage of taskkill to terminate processes
Found direct / indirect Syscall (likely to bypass EDR)
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: BloodHound Collection Files
Sigma detected: Potential Data Stealing Via Chromium Headless Debugging
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Crypto Currency Wallets
Yara detected PRYSMAX STEALER
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1684240 Sample: RXV32yAHcR.exe Startdate: 08/05/2025 Architecture: WINDOWS Score: 100 50 steamcommunity.com 2->50 52 shed.dual-low.s-part-0043.t-0009.t-msedge.net 2->52 54 3 other IPs or domains 2->54 68 Multi AV Scanner detection for submitted file 2->68 70 Yara detected PRYSMAX STEALER 2->70 72 Joe Sandbox ML detected suspicious sample 2->72 74 2 other signatures 2->74 8 RXV32yAHcR.exe 3 286 2->8         started        13 runtime_broker.exe 2->13         started        15 svchost.exe 2->15         started        17 3 other processes 2->17 signatures3 process4 dnsIp5 58 steamcommunity.com 23.52.218.12, 443, 49682 TelecentroSAAR United States 8->58 46 C:\Users\user\AppData\...\runtime_broker.exe, PE32+ 8->46 dropped 48 C:\Users\user\AppData\...\82_containers.json, JSON 8->48 dropped 78 Attempt to bypass Chrome Application-Bound Encryption 8->78 80 Suspicious powershell command line found 8->80 82 Creates an undocumented autostart registry key 8->82 86 6 other signatures 8->86 19 powershell.exe 8->19         started        22 chrome.exe 8->22         started        25 powershell.exe 15 8->25         started        27 63 other processes 8->27 84 Multi AV Scanner detection for dropped file 13->84 60 127.0.0.1 unknown unknown 15->60 file6 signatures7 process8 dnsIp9 76 Loading BitLocker PowerShell Module 19->76 29 conhost.exe 19->29         started        56 192.168.2.8, 138, 443, 49286 unknown unknown 22->56 31 chrome.exe 22->31         started        34 conhost.exe 25->34         started        36 cmdkey.exe 25->36         started        38 conhost.exe 27->38         started        40 conhost.exe 27->40         started        42 conhost.exe 27->42         started        44 60 other processes 27->44 signatures10 process11 dnsIp12 62 www.google.com 192.178.49.164, 443, 49702, 49703 GOOGLEUS United States 31->62 64 plus.l.google.com 31->64 66 3 other IPs or domains 31->66
Score:
97%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/9d4fe788dfdfe7f9bc6ae255e5a8492f29acc65a18fbc8513c63b69f6c23aafb
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/9d4fe788dfdfe7f9bc6ae255e5a8492f29acc65a18fbc8513c63b69f6c23aafb/
Threat name:
Win64.Trojan.Kepavll
Create hunting rule
Status:
Malicious
First seen:
2025-05-08 05:24:13 UTC
File Type:
PE+ (Exe)
AV detection:
26 of 37 (70.27%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=tvh6pcg737t7tpdk4jk6lkcjf4u2zrs2dd54quj4mo3j63bdvl5q._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
credential_access defense_evasion discovery execution persistence privilege_escalation spyware stealer
Link:
https://tria.ge/reports/250508-f3rypa1ls6/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Kills process with taskkill
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Views/modifies file attributes
Browser Information Discovery
Event Triggered Execution: Netsh Helper DLL
Drops file in Windows directory
Hide Artifacts: Ignore Process Interrupts
Enumerates processes with tasklist
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Command and Scripting Interpreter: PowerShell
Enumerates connected drives
Credentials from Password Stores: Windows Credential Manager
Executes dropped EXE
Reads ssh keys stored on the system
Reads user/profile data of web browsers
Unsecured Credentials: Credentials In Files
Event Triggered Execution: Image File Execution Options Injection
Modifies Windows Firewall
Uses browser remote debugging
Modifies WinLogon for persistence
Verdict:
Malicious
Tags:
Win.Malware.Malwarex-10043756-0
YARA:
n/a
Link:
https://app.threat.zone/submission/b712c691-7687-4a79-b8f6-50137d3bf06a
Unpacked files
SH256 hash:
9d4fe788dfdfe7f9bc6ae255e5a8492f29acc65a18fbc8513c63b69f6c23aafb
MD5 hash:
20a974b4384cee05f7898fee127e1d43
SHA1 hash:
bb66225c71d8798eb72845408cd81a476b2de58c
Link:
https://www.unpac.me/results/91e8c5d1-fb0f-4b22-b6c0-bd18ee473735/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/9d4fe788dfdf/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/9d4fe788dfdfe7f9bc6ae255e5a8492f29acc65a18fbc8513c63b69f6c23aafb

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:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:command_and_control
Create hunting rule
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__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:dsc
Create hunting rule
Author:Aaron DeVera
Description:Discord domains
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:grakate_stealer_nov_2021
Create hunting rule
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:ProgramLanguage_Rust
Create hunting rule
Author:albertzsigovits
Description:Application written in Rust programming language
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:Rustyloader_mem_loose
Create hunting rule
Author:James_inthe_box
Description:Corroded buerloader
Reference:https://app.any.run/tasks/83064edd-c7eb-4558-85e8-621db72b2a24
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
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.

Web download

RustyStealer

Executable exe 9d4fe788dfdfe7f9bc6ae255e5a8492f29acc65a18fbc8513c63b69f6c23aafb

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3538344/
  
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
AUTH_APIManipulates User Authorizationadvapi32.dll::CopySid
advapi32.dll::GetLengthSid
advapi32.dll::IsValidSid
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
ole32.dll::CoInitializeSecurity
DP_APIUses DP APIcrypt32.dll::CryptUnprotectData
SECURITY_BASE_APIUses Security Base APIadvapi32.dll::GetTokenInformation
SS_APIUses SS APIsecur32.dll::AcceptSecurityContext
secur32.dll::AcquireCredentialsHandleA
secur32.dll::ApplyControlToken
secur32.dll::DecryptMessage
secur32.dll::DeleteSecurityContext
secur32.dll::QueryContextAttributesW
WIN32_PROCESS_APICan Create Process and Threadskernel32.dll::CreateProcessW
advapi32.dll::OpenProcessToken
kernel32.dll::OpenProcess
kernel32.dll::CloseHandle
kernel32.dll::CreateThread
WIN_BASE_APIUses Win Base APIntdll.dll::NtQueryInformationProcess
ntdll.dll::NtQuerySystemInformation
kernel32.dll::LoadLibraryA
kernel32.dll::LoadLibraryExW
kernel32.dll::LoadLibraryW
kernel32.dll::GetDriveTypeW
WIN_BASE_EXEC_APICan Execute other programskernel32.dll::WriteConsoleW
kernel32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create Fileskernel32.dll::CopyFileExW
kernel32.dll::CreateDirectoryW
kernel32.dll::CreateFileA
kernel32.dll::CreateFileMappingA
kernel32.dll::CreateFileMappingW
kernel32.dll::CreateFileW
ntdll.dll::NtCreateFile
WIN_BASE_USER_APIRetrieves Account Informationadvapi32.dll::LookupAccountSidW
WIN_BCRYPT_APICan Encrypt Filesbcrypt.dll::BCryptGenRandom
WIN_CRYPT_APIUses Windows Crypt APIcrypt32.dll::CertAddCertificateContextToStore
crypt32.dll::CertDuplicateCertificateChain
crypt32.dll::CertDuplicateCertificateContext
crypt32.dll::CertDuplicateStore
crypt32.dll::CertEnumCertificatesInStore
crypt32.dll::CertFreeCertificateChain
WIN_REG_APICan Manipulate Windows Registryadvapi32.dll::RegCreateKeyExW
advapi32.dll::RegOpenKeyExW
advapi32.dll::RegQueryValueExW
advapi32.dll::RegSetValueExW
advapi32.dll::RegDeleteTreeW
WIN_SOCK_APIUses Network to send and receive dataws2_32.dll::bind
ws2_32.dll::closesocket
ws2_32.dll::connect
ws2_32.dll::freeaddrinfo
ws2_32.dll::getaddrinfo
ws2_32.dll::getpeername
WIN_USER_APIPerforms GUI Actionsuser32.dll::OpenClipboard

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