MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 088f37fc09e69a1294fcc28f526d433f114e966b8c30078a9c718c82caf3790a. 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: 14


Intelligence 14 IOCs YARA 6 File information Comments

SHA256 hash: 088f37fc09e69a1294fcc28f526d433f114e966b8c30078a9c718c82caf3790a
SHA3-384 hash: e4d902c5ec3fb4c8558c154389a1bb49c4bac349ac6cb9812e7c0ab3fdb3c62e1056a96b622e1d2b9dd3569238d752d0
SHA1 hash: ebcad0fc7d0167f7370e7c7148a9b262075c4d23
MD5 hash: 14323a70cdc4cdb5070b05dfde38fed7
humanhash: comet-iowa-moon-oven
File name:file
Download: download sample
Signature GCleaner
File size:411'136 bytes
First seen:2024-04-12 09:25:26 UTC
Last seen:2024-04-12 10:27:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 1b0af0470af4d888c83defee61420444 (2 x Stealc, 1 x LummaStealer, 1 x GCleaner)
ssdeep 6144:lCdWUanBEKclS/bcxnYGPaeIbHhTDhVeKbVd5bIu5yG:nlnBEjo/bAnzUBWKbR
TLSH T13194BFE1AE60B7E9D5220E304959CBE017EDBC109A35965B235CEA1F2E7C3D0C92F716
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 d2f0e4cce8f8c7f9 (1 x GCleaner)
Reporter Bitsight
Tags:exe gcleaner


Avatar
Bitsight
url: http://5.42.65.64/download.php?pub=inte

Intelligence


File Origin
# of uploads :
2
# of downloads :
326
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
088f37fc09e69a1294fcc28f526d433f114e966b8c30078a9c718c82caf3790a.exe
Verdict:
Malicious activity
Analysis date:
2024-04-12 09:28:02 UTC
Tags:
gcleaner loader opendir hijackloader

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

Behaviour
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Sending an HTTP GET request to an infection source
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Searching for the window
Connection attempt to an infection source
Launching a tool to kill processes
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint xpack
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.
Result
Threat name:
GCleaner
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found direct / indirect Syscall (likely to bypass EDR)
Found hidden mapped module (file has been removed from disk)
Found malware configuration
Machine Learning detection for dropped file
Maps a DLL or memory area into another process
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Snort IDS alert for network traffic
Writes to foreign memory regions
Yara detected GCleaner
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1425000 Sample: file.exe Startdate: 12/04/2024 Architecture: WINDOWS Score: 100 43 Snort IDS alert for network traffic 2->43 45 Multi AV Scanner detection for domain / URL 2->45 47 Found malware configuration 2->47 49 7 other signatures 2->49 8 file.exe 17 2->8         started        process3 dnsIp4 39 185.172.128.90, 49730, 80 NADYMSS-ASRU Russian Federation 8->39 41 5.42.65.64, 49731, 80 RU-KSTVKolomnaGroupofcompaniesGuarantee-tvRU Russian Federation 8->41 35 C:\Users\user\AppData\...\mUbmRAlm3vdNe.exe, PE32 8->35 dropped 37 C:\Users\user\AppData\Local\...\TWO[1].file, PE32 8->37 dropped 12 mUbmRAlm3vdNe.exe 2 8->12         started        15 cmd.exe 1 8->15         started        17 WerFault.exe 16 8->17         started        19 7 other processes 8->19 file5 process6 signatures7 57 Maps a DLL or memory area into another process 12->57 59 Found direct / indirect Syscall (likely to bypass EDR) 12->59 21 more.com 2 12->21         started        25 taskkill.exe 1 15->25         started        27 conhost.exe 15->27         started        process8 file9 33 C:\Users\user\AppData\Local\...\bkdohgypqvbxh, PE32 21->33 dropped 51 Writes to foreign memory regions 21->51 53 Found hidden mapped module (file has been removed from disk) 21->53 55 Maps a DLL or memory area into another process 21->55 29 conhost.exe 21->29         started        31 WerFault.exe 21->31         started        signatures10 process11
Threat name:
Win32.Trojan.Gcleaner
Status:
Malicious
First seen:
2024-04-12 08:16:50 UTC
File Type:
PE (Exe)
Extracted files:
64
AV detection:
24 of 38 (63.16%)
Threat level:
  5/5
Verdict:
malicious
Result
Malware family:
gcleaner
Score:
  10/10
Tags:
family:gcleaner loader
Behaviour
Kills process with taskkill
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Checks computer location settings
Deletes itself
GCleaner
Malware Config
C2 Extraction:
185.172.128.90
5.42.65.64
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: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:maldoc_find_kernel32_base_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:Windows_Generic_Threat_97c1a260
Author:Elastic Security
Rule name:Windows_Trojan_Generic_2993e5a5
Author:Elastic Security

File information


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

Web download

GCleaner

Executable exe 088f37fc09e69a1294fcc28f526d433f114e966b8c30078a9c718c82caf3790a

(this sample)

  
Dropped by
Privateloader
  
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 (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::SetConsoleTitleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleAliasExesLengthA
KERNEL32.dll::GetConsoleAliasesLengthA
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameA

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