MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5226ea8e0f516565ba825a1bbed10020982c16414750237068b602c5b4ac6abd. 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 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5226ea8e0f516565ba825a1bbed10020982c16414750237068b602c5b4ac6abd
SHA3-384 hash: 421926eecb6fd2da9b2fb2ffc80879d09261161ff6a42faa5e0411976c99169a6da395b1c27e9ee40708d08e07d8ca72
SHA1 hash: 0246696395c8514494435f645cdff034d70d0951
MD5 hash: 834c7fd865eee5f7e17a3a1fb62e7051
humanhash: foxtrot-early-oregon-summer
File name:5226ea8e0f516565ba825a1bbed10020982c16414750237068b602c5b4ac6abd
Download: download sample
Signature RustyStealer
Create hunting rule
File size:5'482'496 bytes
First seen:2025-01-12 17:46:00 UTC
Last seen:2025-07-30 09:43:57 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash de46efa2ebc1886f978c8fb5ad471f48 (4 x RustyStealer)
ssdeep 49152:vNrjLXqz4aEXEMvTR4CY6C74bC6xxXjWe/l+XYq7p4BFt277t19sJpoc74P8TKWQ:OMvTRdxAG5/TuIx5f3
TLSH T1D6462922BB5A99ADC49AC0B083564B72697134CB0B35B9FF44C446783E6DAF42F3C758
TrID 44.4% (.EXE) Win64 Executable (generic) (10522/11/4)
21.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.7% (.ICL) Windows Icons Library (generic) (2059/9)
8.5% (.EXE) OS/2 Executable (generic) (2029/13)
8.4% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter TheRavenFile
Tags:exe funklocker funksec Ransomware RustyStealer


Avatar
RakeshKrish12
Source: https://github.com/TheRavenFile/IOC/blob/main/FUNKSEC%20Ransomware

Intelligence

File Origin
# of uploads :
2
# of downloads :
228
Origin country :
IN IN
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
5226ea8e0f516565ba825a1bbed10020982c16414750237068b602c5b4ac6abd
Verdict:
Malicious activity
Analysis date:
2025-01-13 00:36:36 UTC
Tags:
rust
Link:
https://app.any.run/tasks/9960a3e7-8740-4c05-8321-b357db889ce5

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6783ffde1e9cdec7dbbbd8ed
Tags:
vmdetect
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching the process to interact with network services
Launching a process
Using the Windows Management Instrumentation requests
Creating a file
DNS request
Connection attempt
Sending a custom TCP request
Changing a file
Searching for the window
Adding an exclusion to Microsoft Defender
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug anti-vm microsoft_visual_cc ransomware
Link:
https://www.filescan.io/uploads/6783ffdcaf471c736890c7bf/reports/6c71d94d-5ebd-439c-a4b6-5a29daf4353c/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/5226ea8e0f516565ba825a1bbed10020982c16414750237068b602c5b4ac6abd
Result
Verdict:
SUSPICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/006ae3ff-3701-4c2e-8090-fa3ee851ac30
Result
Threat name:
FunkLocker
Create hunting rule
Detection:
malicious
Classification:
rans.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1589527
Signature
AI detected suspicious sample
Bypasses PowerShell execution policy
Creates files in the recycle bin to hide itself
Disables Windows Defender (via service or powershell)
Loading BitLocker PowerShell Module
Modifies Windows Defender protection settings
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Disable of ETW Trace
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Powershell Defender Disable Scan Feature
Sigma detected: Suspicious Eventlog Clear or Configuration Change
Yara detected FunkLocker Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1589527 Sample: CF537GfmKa.exe Startdate: 12/01/2025 Architecture: WINDOWS Score: 100 36 ipv4.imgur.map.fastly.net 2->36 38 i.imgur.com 2->38 42 Multi AV Scanner detection for dropped file 2->42 44 Multi AV Scanner detection for submitted file 2->44 46 Yara detected FunkLocker Ransomware 2->46 48 5 other signatures 2->48 8 CF537GfmKa.exe 145 2->8         started        signatures3 process4 dnsIp5 40 ipv4.imgur.map.fastly.net 199.232.196.193, 443, 49730 FASTLYUS United States 8->40 30 C:\Users\CK3Wg2mN4T.exe, PE32+ 8->30 dropped 32 C:\$Recycle.Bin\...\desktop.ini.funksec, data 8->32 dropped 34 C2RManifest.Proof....6.en-us.xml.funksec, COM 8->34 dropped 50 Creates files in the recycle bin to hide itself 8->50 52 Bypasses PowerShell execution policy 8->52 54 Modifies Windows Defender protection settings 8->54 56 Disables Windows Defender (via service or powershell) 8->56 13 powershell.exe 23 8->13         started        16 powershell.exe 22 8->16         started        18 powershell.exe 7 8->18         started        20 4 other processes 8->20 file6 signatures7 process8 signatures9 58 Loading BitLocker PowerShell Module 13->58 22 WmiPrvSE.exe 13->22         started        24 wevtutil.exe 1 18->24         started        26 wevtutil.exe 1 20->26         started        28 net1.exe 1 20->28         started        process10
Score:
85%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/5226ea8e0f516565ba825a1bbed10020982c16414750237068b602c5b4ac6abd
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5226ea8e0f516565ba825a1bbed10020982c16414750237068b602c5b4ac6abd/
Threat name:
Win64.Ransomware.FunkSec
Create hunting rule
Status:
Malicious
First seen:
2025-01-06 01:09:35 UTC
File Type:
PE+ (Exe)
AV detection:
27 of 38 (71.05%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=kitovdqpkfswlouclin35uiaecmcyfsbi5icg4diwybmlnfmnk6q._file
Result
Malware family:
n/a
Score:
  6/10
Tags:
discovery execution ransomware
Link:
https://tria.ge/reports/250112-wb98ysskcx/
Behaviour
Runs net.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Enumerates processes with tasklist
Sets desktop wallpaper using registry
Command and Scripting Interpreter: PowerShell
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e524da80-0667-4157-9a47-609991d1ae90
Unpacked files
SH256 hash:
5226ea8e0f516565ba825a1bbed10020982c16414750237068b602c5b4ac6abd
MD5 hash:
834c7fd865eee5f7e17a3a1fb62e7051
SHA1 hash:
0246696395c8514494435f645cdff034d70d0951
Link:
https://www.unpac.me/results/f18aaa2c-5add-4911-889d-8fc08ec68e8c/
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/5226ea8e0f516565ba825a1bbed10020982c16414750237068b602c5b4ac6abd

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
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__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:detect_powershell
Create hunting rule
Author:daniyyell
Description:Detects suspicious PowerShell activity related to malware execution
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:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:reverse_http
Create hunting rule
Author:CD_R0M_
Description:Identify strings with http reversed (ptth)
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:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques

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
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high
Reviews
IDCapabilitiesEvidence
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
kernel32.dll::CloseHandle
kernel32.dll::CreateThread
WIN_BASE_APIUses Win Base APIkernel32.dll::LoadLibraryA
kernel32.dll::GetSystemInfo
kernel32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programskernel32.dll::WriteConsoleW
kernel32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create Fileskernel32.dll::CopyFileExW
kernel32.dll::CreateFileW
ntdll.dll::NtCreateFile
kernel32.dll::DeleteFileW
ntdll.dll::NtDeviceIoControlFile
kernel32.dll::GetWindowsDirectoryW
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::RegOpenKeyExW
advapi32.dll::RegQueryValueExW
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

Comments