MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ebffc9ced2dba66db9aae02c7ccd2759a36c5167df5cd4adb151b20e7eab173c. 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 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ebffc9ced2dba66db9aae02c7ccd2759a36c5167df5cd4adb151b20e7eab173c
SHA3-384 hash: 2a607f1e3b80aee0bf00b0c2699638d1abb5df4f685465cbafc5a91f6cf4950f11900f0a33c940a133664e3696aba745
SHA1 hash: 612ec1d41b2aa2518363b18381fd89c12315100f
MD5 hash: 5d55fb708834d5ccde15d36554ea63e8
humanhash: speaker-bacon-alaska-ohio
File name:win32.exe
Download: download sample
Signature RustyStealer
Create hunting rule
File size:6'241'792 bytes
First seen:2024-10-24 10:08:43 UTC
Last seen:2024-10-24 10:35:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash c870ba25f44c51987b6d4037448b82e5 (1 x RustyStealer)
ssdeep 98304:W3UW0wJh+x0CQluvl1kRz/eqWgUX7eDxen:aWb0CQluvlaeqZUX7eD
TLSH T125565B0AF813A999D97F65B0606FE735DD35482D00039D33CFDA9E306A6E7112E8DA1E
TrID 33.7% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
17.8% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
11.3% (.EXE) Win64 Executable (generic) (10522/11/4)
10.8% (.EXE) DOS Borland compiled Executable (generic) (10000/1/2)
7.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
Magika pebin
Reporter smica83
Tags:Embargo exe Ransomware RustyStealer

Intelligence

File Origin
# of uploads :
2
# of downloads :
4'321
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
win32.exe
Verdict:
No threats detected
Analysis date:
2024-10-24 10:27:13 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/54d19093-a9da-4c1f-92b9-2406b5c3f5fb

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.Evo-gen.14975.29225.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=671a1cc1c0eeef620f5c843b
Tags:
Powershell Ransomware Exploit Sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Running batch commands
Searching for synchronization primitives
Creating a file
Moving a recently created file
Replacing files
Changing a file
Delayed writing of the file
Using the Windows Management Instrumentation requests
Creating a file in the Program Files directory
Creating a window
Creating a file in the Program Files subdirectories
Moving a file to the Program Files subdirectory
Modifying an executable file
Replacing executable files
Modifies multiple files
Adding an access-denied ACE
Preventing system recovery
Creating a file in the mass storage device
Forced shutdown of a browser
Encrypting user's files
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug anti-vm barys chacha embargo expand filecoder lolbin remote shell32 stealer
Link:
https://www.filescan.io/uploads/671a1cbf0f780125dba1bba4/reports/fe672831-a2eb-478f-98e8-8014704617ee/overview
Verdict:
Malicious
Labled as:
Barys.Generic
Link:
https://www.hybrid-analysis.com/sample/ebffc9ced2dba66db9aae02c7ccd2759a36c5167df5cd4adb151b20e7eab173c
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Cicada3301
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/03ee2ccb-3971-408a-9c49-1f3ab2f4df4b
Result
Threat name:
TrojanRansom
Create hunting rule
Detection:
malicious
Classification:
rans.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1541094
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Creates files in the recycle bin to hide itself
Drops a file containing file decryption instructions (likely related to ransomware)
Found ransom note / readme
Found Tor onion address
Multi AV Scanner detection for submitted file
Self deletion via cmd or bat file
Sigma detected: Suspicious Ping/Del Command Combination
Uses bcdedit to modify the Windows boot settings
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Writes a notice file (html or txt) to demand a ransom
Writes many files with high entropy
Yara detected RansomwareGeneric
Yara detected TrojanRansom
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1541094 Sample: win32.exe Startdate: 24/10/2024 Architecture: WINDOWS Score: 100 32 Antivirus / Scanner detection for submitted sample 2->32 34 Multi AV Scanner detection for submitted file 2->34 36 Found ransom note / readme 2->36 38 5 other signatures 2->38 7 win32.exe 87 2->7         started        process3 file4 24 screenshots@mozill...828a.partial (copy), COM 7->24 dropped 26 screenshots@mozill...g.xpi.3d828a (copy), COM 7->26 dropped 28 C:\...\screenshots@mozilla.org.xpi, COM 7->28 dropped 30 487 other files (479 malicious) 7->30 dropped 40 Creates files in the recycle bin to hide itself 7->40 42 Drops a file containing file decryption instructions (likely related to ransomware) 7->42 44 Self deletion via cmd or bat file 7->44 46 3 other signatures 7->46 11 cmd.exe 1 7->11         started        14 cmd.exe 1 7->14         started        signatures5 process6 signatures7 48 Uses ping.exe to sleep 11->48 50 Uses ping.exe to check the status of other devices and networks 11->50 16 conhost.exe 11->16         started        18 PING.EXE 1 11->18         started        52 Uses bcdedit to modify the Windows boot settings 14->52 20 bcdedit.exe 8 1 14->20         started        22 conhost.exe 14->22         started        process8
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ebffc9ced2dba66db9aae02c7ccd2759a36c5167df5cd4adb151b20e7eab173c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ebffc9ced2dba66db9aae02c7ccd2759a36c5167df5cd4adb151b20e7eab173c/
Threat name:
Win32.Ransomware.Embargo
Create hunting rule
Status:
Malicious
First seen:
2024-07-25 21:07:43 UTC
File Type:
PE (Exe)
AV detection:
23 of 38 (60.53%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5p74ttws3otg3onk4awhztjhlgrwyulh35onjlnrkgza47vlc46a._file
Verdict:
malicious
Label(s):
embargoransomware
Create hunting rule
Similar samples:
error
RustyStealer
Result
Malware family:
n/a
Score:
  10/10
Tags:
credential_access discovery evasion ransomware spyware stealer
Link:
https://tria.ge/reports/241024-l6t54sscqf/
Behaviour
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Browser Information Discovery
Enumerates physical storage devices
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Drops file in Program Files directory
Enumerates connected drives
Credentials from Password Stores: Windows Credential Manager
Deletes itself
Drops startup file
Reads user/profile data of web browsers
Modifies boot configuration data using bcdedit
Renames multiple (8310) files with added filename extension
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/0d473cab-3ed7-4241-86da-55aa382990bf
Unpacked files
SH256 hash:
ebffc9ced2dba66db9aae02c7ccd2759a36c5167df5cd4adb151b20e7eab173c
MD5 hash:
5d55fb708834d5ccde15d36554ea63e8
SHA1 hash:
612ec1d41b2aa2518363b18381fd89c12315100f
Link:
https://www.unpac.me/results/c24d6bef-9d03-4196-8a57-c56819e804bf/
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: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:pe_detect_tls_callbacks
Create hunting rule
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

File information

The table below shows additional information about this malware sample such as delivery method and external references.

  
Link
https://www.welivesecurity.com/en/eset-research/embargo-ransomware-rocknrust/

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
AUTH_APIManipulates User AuthorizationADVAPI32.dll::AllocateAndInitializeSid
ADVAPI32.dll::SetEntriesInAclW
ADVAPI32.dll::SetNamedSecurityInfoW
ADVAPI32.dll::RevertToSelf
NET_SHARE_APICan access Network Sharenetapi32.dll::NetShareEnum
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::ImpersonateLoggedOnUser
WIN32_PROCESS_APICan Create Process and Threadskernel32.dll::CreateProcessW
kernel32.dll::OpenProcess
ADVAPI32.dll::OpenProcessToken
kernel32.dll::SetProcessShutdownParameters
kernel32.dll::CloseHandle
kernel32.dll::CreateThread
WIN_BASE_APIUses Win Base APIkernel32.dll::TerminateProcess
kernel32.dll::FindFirstVolumeW
kernel32.dll::FindNextVolumeW
kernel32.dll::LoadLibraryA
kernel32.dll::LoadLibraryExA
kernel32.dll::GetDriveTypeW
WIN_BASE_EXEC_APICan Execute other programskernel32.dll::AttachConsole
kernel32.dll::WriteConsoleW
kernel32.dll::ReadConsoleW
kernel32.dll::SetConsoleMode
kernel32.dll::SetConsoleTextAttribute
kernel32.dll::GetConsoleMode
kernel32.dll::GetConsoleScreenBufferInfo
WIN_BASE_IO_APICan Create Fileskernel32.dll::CopyFileExW
kernel32.dll::CreateDirectoryW
kernel32.dll::CreateHardLinkW
kernel32.dll::CreateFileMappingA
kernel32.dll::CreateFileW
ntdll.dll::NtCreateFile
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LogonUserW
ADVAPI32.dll::LookupPrivilegeValueW
WIN_BCRYPT_APICan Encrypt Filesbcrypt.dll::BCryptGenRandom
WIN_NETWORK_APISupports Windows Networkingmpr.dll::WNetAddConnection2W
mpr.dll::WNetEnumResourceW
mpr.dll::WNetOpenEnumW
WIN_SOCK_APIUses Network to send and receive dataws2_32.dll::accept
ws2_32.dll::bind
ws2_32.dll::closesocket
ws2_32.dll::connect
ws2_32.dll::freeaddrinfo
ws2_32.dll::getaddrinfo
WIN_SVC_APICan Manipulate Windows ServicesADVAPI32.dll::ChangeServiceConfigW
ADVAPI32.dll::ControlService
ADVAPI32.dll::EnumDependentServicesW
ADVAPI32.dll::OpenSCManagerW
ADVAPI32.dll::OpenServiceW
ADVAPI32.dll::QueryServiceStatusEx

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