MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b57ce96ac5335440e14b952c52ce9df916b073825f0dbbdd24159c9a2d82e282. 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


GCleaner


Vendor detections: 12


Intelligence 12 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b57ce96ac5335440e14b952c52ce9df916b073825f0dbbdd24159c9a2d82e282
SHA3-384 hash: 1b1603d2cf070163f48245244d300c79d92513482a2ec134e03f2e1a9bf3062fe21e72551c215a4aba29dfd2abfc8d00
SHA1 hash: a01e37f2390cb0707670609d928693b107982dc6
MD5 hash: d28d4aa46be0cf143e5184703075b55b
humanhash: oscar-venus-india-wisconsin
File name:SecuriteInfo.com.Win32.BootkitX-gen.15828.15251
Download: download sample
Signature GCleaner
Create hunting rule
File size:325'120 bytes
First seen:2024-04-02 22:30:53 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 84fe06240982f1bd102fcac07fa31539 (2 x GCleaner)
ssdeep 6144:s3qOru3eMg0RqMZmOpV6SVgNCfVF8UQzd3SIf34XVe:JOUeMguqMZXpIwgNCcUQ3toV
TLSH T1F864C016B3E1E832C5521430CD39CAE51B7EFC716E7596877BA43A3F2DB12D08A26352
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 2248c8f4c8e17284 (1 x GCleaner)
Reporter SecuriteInfoCom
Tags:exe gcleaner

Intelligence

File Origin
# of uploads :
1
# of downloads :
410
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b57ce96ac5335440e14b952c52ce9df916b073825f0dbbdd24159c9a2d82e282.exe
Verdict:
Malicious activity
Analysis date:
2024-04-02 22:32:13 UTC
Tags:
gcleaner loader
Link:
https://app.any.run/tasks/1cfd3453-0cbb-47a9-b4ea-012d01cd6229

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
DNS request
Connection attempt
Sending an HTTP GET request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint packed xpack
Link:
https://www.filescan.io/uploads/660c872d15f64ac503505b8f/reports/f5d76758-5a39-4cbf-8207-a641a2ed978d/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/b57ce96ac5335440e14b952c52ce9df916b073825f0dbbdd24159c9a2d82e282
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3fc6a763-030a-44ff-a074-1c31ef8983ed
Result
Threat name:
GCleaner, Nymaim
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1419067
Signature
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Found malware configuration
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Yara detected GCleaner
Yara detected Nymaim
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b57ce96ac5335440e14b952c52ce9df916b073825f0dbbdd24159c9a2d82e282
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b57ce96ac5335440e14b952c52ce9df916b073825f0dbbdd24159c9a2d82e282/
Threat name:
Win32.Ransomware.GandCrab
Create hunting rule
Status:
Malicious
First seen:
2024-04-02 22:31:06 UTC
File Type:
PE (Exe)
Extracted files:
34
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wv6os2wfgnkebyklsuwfftu57ella44cl4g3xxjecwojulmc4kba._file
Verdict:
malicious
Result
Malware family:
gcleaner
Create hunting rule
Score:
  10/10
Tags:
family:gcleaner loader
Link:
https://tria.ge/reports/240402-2fcq5sfg33/
Behaviour
Program crash
Downloads MZ/PE file
GCleaner
Malware Config
C2 Extraction:
185.172.128.90
5.42.64.56
5.42.65.64
Unpacked files
SH256 hash:
b0843e0507b1d642dc40c5b3a722da2e12ef11ece4226ac3005951c64c02aec5
MD5 hash:
5ed42f5fbbbd17e5905890a8005c0610
SHA1 hash:
b40bf04b31cb376469a4a135fcb1688a542fc8f5
Detections:
GCleaner
Create hunting rule
win_gcleaner_auto
Create hunting rule
Link:
https://www.unpac.me/results/65a518e4-0a11-499d-a5b1-5fd30b83a650/
Parent samples :
b57ce96ac5335440e14b952c52ce9df916b073825f0dbbdd24159c9a2d82e282
65e6e068eb8714b0538e71485a1cf8f2c362e5669328c5222278d13b820e0914
SH256 hash:
b57ce96ac5335440e14b952c52ce9df916b073825f0dbbdd24159c9a2d82e282
MD5 hash:
d28d4aa46be0cf143e5184703075b55b
SHA1 hash:
a01e37f2390cb0707670609d928693b107982dc6
Link:
https://www.unpac.me/results/65a518e4-0a11-499d-a5b1-5fd30b83a650/
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:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:Windows_Trojan_Generic_2993e5a5
Create hunting rule
Author:Elastic Security
Rule name:win_gcleaner_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.gcleaner.

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
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::FindNextVolumeMountPointA
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleOutputA
KERNEL32.dll::SetConsoleOutputCP
KERNEL32.dll::SetConsoleTitleA
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleAliasesLengthW
KERNEL32.dll::GetConsoleAliasExesLengthW
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateHardLinkA
KERNEL32.dll::CreateFileA
KERNEL32.dll::CreateFileW

Comments