MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c9abfc3e4da474e18795f5261f77e60c44e7b3353771281e4304e7506d56fdb4. 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



Medusa


Vendor detections: 16


Intelligence 16 IOCs YARA 11 File information Comments

SHA256 hash: c9abfc3e4da474e18795f5261f77e60c44e7b3353771281e4304e7506d56fdb4
SHA3-384 hash: 458f55d1542665792e7100aeb9ee10e4a369333a3363b46ed170fd3f766cf4e61086da6f72f7561826352464cbed8ad7
SHA1 hash: a324f02d8fd3f4c4167e7a30123b2c8b5b20ee5a
MD5 hash: eb46bc3e2ad88149176ef33c9fea087a
humanhash: tennis-fifteen-golf-mango
File name:c9abfc3e4da474e18795f5261f77e60c44e7b3353771281e4304e7506d56fdb4
Download: download sample
Signature Medusa
File size:638'976 bytes
First seen:2025-04-29 15:42:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 82a8292007e682f1a127ba8dcebfae96 (23 x Medusa)
ssdeep 12288:fNdW6SXebAH9eAoM83HrnLmhdledAxHwwaleIyUm1wJjUpse3NtN6REdsuEUEBNF:nVwRJmVSvGWEQXvvKw4IRRsrWPa1uo
Threatray 12 similar samples on MalwareBazaar
TLSH T101D49F257483C136E57201314D5CABB661BFFC310B734DEBA7905A6A5A382E06F3297B
TrID 32.2% (.EXE) Win64 Executable (generic) (10522/11/4)
20.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
13.7% (.EXE) Win32 Executable (generic) (4504/4/1)
6.2% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter TheRavenFile
Tags:exe Medusa Ransomware


Avatar
RakeshKrish12
Source: https://github.com/TheRavenFile/Daily-Hunt/blob/main/Medusa%20Ransomware

Intelligence


File Origin
# of uploads :
1
# of downloads :
530
Origin country :
IN IN
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
c9abfc3e4da474e18795f5261f77e60c44e7b3353771281e4304e7506d56fdb4
Verdict:
Malicious activity
Analysis date:
2025-04-29 15:45:52 UTC
Tags:
xor-url generic medusa ransomware

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
91.7%
Tags:
ransomware sage remo
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Launching the process to interact with network services
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
crypto fingerprint hacktool microsoft_visual_cc obfuscated ransomx
Result
Threat name:
MedusaLocker
Detection:
malicious
Classification:
rans.spre.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Contains functionality to encrypt and move a file in one function
Creates files in the recycle bin to hide itself
Deletes shadow drive data (may be related to ransomware)
Disables security and backup related services
Found ransom note / readme
Found Tor onion address
Infects executable files (exe, dll, sys, html)
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for submitted file
Query firmware table information (likely to detect VMs)
Sigma detected: Suspicious Windows Service Tampering
Writes a notice file (html or txt) to demand a ransom
Yara detected MedusaLocker Ransomware
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1677438 Sample: 0e8IZmyXYR.exe Startdate: 29/04/2025 Architecture: WINDOWS Score: 100 45 Antivirus / Scanner detection for submitted sample 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 Found ransom note / readme 2->49 51 4 other signatures 2->51 7 0e8IZmyXYR.exe 1002 2->7         started        process3 file4 37 C:\ProgramData\...\!!!READ_ME_MEDUSA!!!.txt, ASCII 7->37 dropped 39 C:\ProgramData\...\!!!READ_ME_MEDUSA!!!.txt, ASCII 7->39 dropped 41 C:\ProgramData\...\!!!READ_ME_MEDUSA!!!.txt, ASCII 7->41 dropped 43 8 other malicious files 7->43 dropped 53 Query firmware table information (likely to detect VMs) 7->53 55 Creates files in the recycle bin to hide itself 7->55 57 Contains functionality to encrypt and move a file in one function 7->57 59 5 other signatures 7->59 11 net.exe 1 7->11         started        13 net.exe 7->13         started        15 net.exe 7->15         started        17 15 other processes 7->17 signatures5 process6 process7 19 conhost.exe 11->19         started        21 net1.exe 11->21         started        23 conhost.exe 13->23         started        25 net1.exe 13->25         started        27 conhost.exe 15->27         started        29 net1.exe 15->29         started        31 conhost.exe 17->31         started        33 net1.exe 17->33         started        35 26 other processes 17->35
Threat name:
Win32.Ransomware.Medusa
Status:
Malicious
First seen:
2025-01-23 03:06:00 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
29 of 36 (80.56%)
Threat level:
  5/5
Result
Malware family:
medusaransomware
Score:
  10/10
Tags:
family:medusaransomware credential_access discovery persistence ransomware spyware stealer
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Enumerates system info in registry
Kills process with taskkill
Modifies Internet Explorer settings
Modifies registry class
Runs net.exe
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
Browser Information Discovery
Program crash
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Drops file in Program Files directory
Drops desktop.ini file(s)
Enumerates connected drives
Network Share Discovery
Credentials from Password Stores: Windows Credential Manager
Drops startup file
Reads user/profile data of web browsers
Boot or Logon Autostart Execution: Active Setup
Renames multiple (9667) files with added filename extension
Medusa Ransomware
Medusaransomware family
Verdict:
Malicious
Tags:
Win.Ransomware.Medusa-10025438-0
YARA:
n/a
Unpacked files
SH256 hash:
c9abfc3e4da474e18795f5261f77e60c44e7b3353771281e4304e7506d56fdb4
MD5 hash:
eb46bc3e2ad88149176ef33c9fea087a
SHA1 hash:
a324f02d8fd3f4c4167e7a30123b2c8b5b20ee5a
Please note that we are no longer able to provide a coverage score for Virus Total.

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:CMD_Ping_Localhost
Rule name:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
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:medusa_ransomware
Rule name:Nymaim
Author:Chaitanya
Description:Nymaim Loader
Rule name:pe_detect_tls_callbacks
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:SUSP_XORed_URL_In_EXE
Author:Florian Roth (Nextron Systems)
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:SUSP_XORed_URL_in_EXE_RID2E46
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:Windows_Ransomware_Medusa_fda487fd
Author:Elastic Security

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 (HIGH_ENTROPY_VA)high
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessA
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetDriveTypeW
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetDiskFreeSpaceExW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleWindow
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileW
KERNEL32.dll::MoveFileW
KERNEL32.dll::GetFileAttributesW
WIN_BCRYPT_APICan Encrypt Filesbcrypt.dll::BCryptCreateHash
bcrypt.dll::BCryptDestroyKey
bcrypt.dll::BCryptEncrypt
bcrypt.dll::BCryptFinishHash
bcrypt.dll::BCryptGenerateSymmetricKey
bcrypt.dll::BCryptGetProperty
WIN_CRYPT_APIUses Windows Crypt APICRYPT32.dll::CryptDecodeObjectEx
bcrypt.dll::BCryptHashData
bcrypt.dll::BCryptImportKeyPair

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