MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99d42ee02b2d43170796ccb36e5f05318a713fbbb2b48067024a555a58a57dc9. 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 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 99d42ee02b2d43170796ccb36e5f05318a713fbbb2b48067024a555a58a57dc9
SHA3-384 hash: b903287fddab00a589743168f32f42bc27c4703d4a7dd3c116abb8243bcd9e863d40fc98a8f8c06c1b6ad7d6b579db19
SHA1 hash: 72c07f574b55f5da5d8bea8d1c87e024e5925f15
MD5 hash: 072808f550a495b45920fa2f0f239d3e
humanhash: speaker-venus-north-autumn
File name:072808f550a495b45920fa2f0f239d3e
Download: download sample
Signature GCleaner
Create hunting rule
File size:318'976 bytes
First seen:2024-03-28 09:41:41 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash d6cc7eef7e91d5b40575c3542ffc17dc (2 x LummaStealer, 2 x GCleaner, 1 x UACModuleSmokeLoader)
ssdeep 3072:WOhBfC8R+bIlGXY+XKdK1QUdLUUDO3bvd+A+kYiTmxtViZmmJVjkKbzGbIXyrN9H:L8pdoxiskxe4KW+qN9Xi
TLSH T14D649E2272E1AC64F6734B33FD3DC6A4162EF9614FA9675B33186E0F04710A1C66A763
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 0c18183240808000 (1 x GCleaner)
Reporter zbetcheckin
Tags:32 exe gcleaner

Intelligence

File Origin
# of uploads :
1
# of downloads :
346
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
99d42ee02b2d43170796ccb36e5f05318a713fbbb2b48067024a555a58a57dc9.exe
Verdict:
Malicious activity
Analysis date:
2024-03-28 09:42:51 UTC
Tags:
gcleaner loader
Link:
https://app.any.run/tasks/ce970dc1-1a94-4a03-a864-178e13dbc686

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
Connection attempt to an infection source
Verdict:
No Threat
Threat level:
  10/10
Confidence:
100%
Tags:
fingerprint
Link:
https://www.filescan.io/uploads/66053b8d48d4a0990b2a9d85/reports/5c41c89e-3b0a-4c92-b7b3-bcb681bee2ce/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/99d42ee02b2d43170796ccb36e5f05318a713fbbb2b48067024a555a58a57dc9
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/aca65f32-b3cb-4b15-88a9-daa25c5c6845
Result
Threat name:
GCleaner
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1416955
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Yara detected GCleaner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1416955 Sample: Wz9s7ibPaf.exe Startdate: 28/03/2024 Architecture: WINDOWS Score: 100 25 Snort IDS alert for network traffic 2->25 27 Multi AV Scanner detection for domain / URL 2->27 29 Malicious sample detected (through community Yara rule) 2->29 31 5 other signatures 2->31 7 Wz9s7ibPaf.exe 14 2->7         started        process3 dnsIp4 23 185.172.128.90, 49729, 80 NADYMSS-ASRU Russian Federation 7->23 33 Detected unpacking (changes PE section rights) 7->33 35 Detected unpacking (overwrites its own PE header) 7->35 11 cmd.exe 7->11         started        13 WerFault.exe 16 7->13         started        15 WerFault.exe 16 7->15         started        17 6 other processes 7->17 signatures5 process6 process7 19 conhost.exe 11->19         started        21 taskkill.exe 11->21         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/99d42ee02b2d43170796ccb36e5f05318a713fbbb2b48067024a555a58a57dc9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/99d42ee02b2d43170796ccb36e5f05318a713fbbb2b48067024a555a58a57dc9/
Threat name:
Win32.Ransomware.Stopcrypt
Create hunting rule
Status:
Malicious
First seen:
2024-03-28 09:42:06 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=thkc5yblfvbrob4wzszw4xyfggfhcp53wk2iazycjjkvuwffpxeq._file
Verdict:
malicious
Result
Malware family:
gcleaner
Create hunting rule
Score:
  10/10
Tags:
family:gcleaner loader
Link:
https://tria.ge/reports/240328-lpbx7sfd45/
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
5.42.65.115
Unpacked files
SH256 hash:
110c64b4a03a6ed6c8ffd2baba0a5831fd8bd59ca6b23d6e885a8f34e13461fc
MD5 hash:
fa092cd96d9916f2e247067653cd1110
SHA1 hash:
b21b8b0914adc6d9c8a1d83e0ca0ddb83cd28d23
Detections:
GCleaner
Create hunting rule
Link:
https://www.unpac.me/results/2fb3887f-1a0a-40c7-b1c8-9fd632e260c6/
Parent samples :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 hash:
99d42ee02b2d43170796ccb36e5f05318a713fbbb2b48067024a555a58a57dc9
MD5 hash:
072808f550a495b45920fa2f0f239d3e
SHA1 hash:
72c07f574b55f5da5d8bea8d1c87e024e5925f15
Link:
https://www.unpac.me/results/2fb3887f-1a0a-40c7-b1c8-9fd632e260c6/
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/99d42ee02b2d43170796ccb36e5f05318a713fbbb2b48067024a555a58a57dc9

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
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:EXE_Stealer_StealC_Feb2024
Create hunting rule
Author:Yashraj Solanki - Cyber Threat Intelligence Analyst at Bridewell
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:Windows_Generic_Threat_97c1a260
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_Generic_2993e5a5
Create hunting rule
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 99d42ee02b2d43170796ccb36e5f05318a713fbbb2b48067024a555a58a57dc9

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2755494/
  
URLhaus
https://urlhaus.abuse.ch/url/2755475/

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_NXMissing Non-Executable Memory Protectioncritical
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::FindFirstVolumeMountPointA
KERNEL32.dll::FindNextVolumeW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetVolumeInformationA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleA
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::PeekConsoleInputW
KERNEL32.dll::ReadConsoleA
KERNEL32.dll::SetConsoleTextAttribute
KERNEL32.dll::SetStdHandle
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileW
KERNEL32.dll::GetWindowsDirectoryA
KERNEL32.dll::RemoveDirectoryA
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::QueryDosDeviceW

Comments


Avatar
zbet commented on 2024-03-28 09:41:42 UTC

url : hxxp://5.42.65.115/download.php?pub=inte/