MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 87137f8ac515457f952efd992e0efcb3373337f7a311e27ba61b36e7f31033f3. 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: 13


Intelligence 13 IOCs YARA 5 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 87137f8ac515457f952efd992e0efcb3373337f7a311e27ba61b36e7f31033f3
SHA3-384 hash: b4f02c9e5386bc069c0a385d0d52d9a45795f0319d23cf111566b6055af66f516e2a0e3f01f9fdd005bebe67cf0511a1
SHA1 hash: f59f9c47bdf9bc3f3bfe99dfc162ba8faec72563
MD5 hash: 6c0285eefe2804e725422c8c0fe61149
humanhash: minnesota-pizza-violet-freddie
File name:6c0285eefe2804e725422c8c0fe61149
Download: download sample
Signature GCleaner
Create hunting rule
File size:241'664 bytes
First seen:2024-05-14 23:48:42 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 3d373b41f750cfe34bc80626c0be52b2 (5 x GCleaner, 1 x Nymaim)
ssdeep 6144:8NV8p4KfDNhW7f9Kjlv6mZhkyHyETewkhrHJnLcVASJx+KlrKbx038mmTBDw4AOT:8NV8plbNhW7f9Kjlv6mZhkyHyETewkhb
TLSH T107348E107592C872E5B2013518F8DBB6852DBC300B6599EBB7D41F7E8E702D29632E7B
TrID 32.2% (.EXE) Win64 Executable (generic) (10523/12/4)
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)
Reporter zbetcheckin
Tags:32 exe gcleaner

Intelligence

File Origin
# of uploads :
1
# of downloads :
365
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
87137f8ac515457f952efd992e0efcb3373337f7a311e27ba61b36e7f31033f3.exe
Verdict:
Malicious activity
Analysis date:
2024-05-14 23:48:54 UTC
Tags:
gcleaner loader
Link:
https://app.any.run/tasks/3383a78e-0edf-4c3d-83e3-6d1b45b331b4

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.DropperX-gen.6065.3026.UNOFFICIAL
Create hunting rule

Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
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
Sending an HTTP GET request to an infection source
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
crypto fingerprint gcleaner lolbin shell32
Link:
https://www.filescan.io/uploads/6643f86edf07636df8d6434e/reports/d83d957f-a25c-4a9e-abfd-bf0239a8d93e/overview
Verdict:
Malicious
Labled as:
Zusy.Generic
Link:
https://www.hybrid-analysis.com/sample/87137f8ac515457f952efd992e0efcb3373337f7a311e27ba61b36e7f31033f3
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/170825c8-6ab2-4b61-b681-26a2f5129004
Result
Threat name:
GCleaner, Nymaim
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1441698
Signature
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Found malware configuration
Machine Learning detection for sample
Yara detected GCleaner
Yara detected Nymaim
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1441698 Sample: WATvB1F6Y5.exe Startdate: 15/05/2024 Architecture: WINDOWS Score: 80 18 Found malware configuration 2->18 20 Antivirus / Scanner detection for submitted sample 2->20 22 Yara detected GCleaner 2->22 24 3 other signatures 2->24 7 WATvB1F6Y5.exe 14 2->7         started        process3 dnsIp4 16 185.172.128.90, 49704, 80 NADYMSS-ASRU Russian Federation 7->16 10 cmd.exe 1 7->10         started        process5 process6 12 taskkill.exe 1 10->12         started        14 conhost.exe 10->14         started       
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/87137f8ac515457f952efd992e0efcb3373337f7a311e27ba61b36e7f31033f3
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/87137f8ac515457f952efd992e0efcb3373337f7a311e27ba61b36e7f31033f3/
Threat name:
Win32.Trojan.Whispergate
Create hunting rule
Status:
Malicious
First seen:
2024-05-14 23:49:05 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=q4jx7cwfcvcx7fjo7wms4dx4wm3tgn7xumi6e65gdm3op4yqgpzq._file
Result
Malware family:
gcleaner
Create hunting rule
Score:
  10/10
Tags:
family:gcleaner
Link:
https://tria.ge/reports/240514-3tzy9sfb66/
Behaviour
Kills process with taskkill
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Checks computer location settings
Deletes itself
Malware Config
C2 Extraction:
185.172.128.90
5.42.64.56
5.42.65.64
Unpacked files
SH256 hash:
87137f8ac515457f952efd992e0efcb3373337f7a311e27ba61b36e7f31033f3
MD5 hash:
6c0285eefe2804e725422c8c0fe61149
SHA1 hash:
f59f9c47bdf9bc3f3bfe99dfc162ba8faec72563
Detections:
GCleaner
Create hunting rule
win_gcleaner_auto
Create hunting rule
Link:
https://www.unpac.me/results/867e61a0-f263-4f00-a7c3-033a5a0c7e84/
Parent samples :
87137f8ac515457f952efd992e0efcb3373337f7a311e27ba61b36e7f31033f3
99a78d0fa03ff7a93ac2a006c6c3baebbbc431d0846e24072ed309761a0d4f15
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/87137f8ac515457f952efd992e0efcb3373337f7a311e27ba61b36e7f31033f3

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:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
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.

Web download

GCleaner

Executable exe 87137f8ac515457f952efd992e0efcb3373337f7a311e27ba61b36e7f31033f3

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2850339/
  
URLhaus
https://urlhaus.abuse.ch/url/2850448/
  
URLhaus
https://urlhaus.abuse.ch/url/2850451/
  
URLhaus
https://urlhaus.abuse.ch/url/2850418/

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
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteA
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::OpenProcess
KERNEL32.dll::CloseHandle
WININET.dll::InternetCloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineW
KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleOutputCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateDirectoryA
KERNEL32.dll::CreateFileA
KERNEL32.dll::CreateFileW
KERNEL32.dll::FindFirstFileA
KERNEL32.dll::GetTempPathA
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::GetUserNameA
WIN_CRYPT_APIUses Windows Crypt APIADVAPI32.dll::CryptAcquireContextW
ADVAPI32.dll::CryptCreateHash
ADVAPI32.dll::CryptDecrypt
ADVAPI32.dll::CryptDeriveKey
ADVAPI32.dll::CryptHashData

Comments


Avatar
zbet commented on 2024-05-14 23:48:43 UTC

url : hxxp://5.42.67.23/oorigg/univ.exe