MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6185dca82afc231e003000da31355b2a826a394eb6876f5fad184f6eb9c6bf77. 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: 15


Intelligence 15 IOCs YARA 6 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6185dca82afc231e003000da31355b2a826a394eb6876f5fad184f6eb9c6bf77
SHA3-384 hash: 5ae31f7901b2ba1a08d19ec552ca01cb128e060f2d47f4e1721251110da8cbe07a6fda46fe7e5294de965df0b6577aee
SHA1 hash: c48f20a1e2a1373e48a50cdc20afee9f605a9c9c
MD5 hash: 14b027cc047db731cf85c0c9566efee0
humanhash: lithium-november-north-cat
File name:14b027cc047db731cf85c0c9566efee0
Download: download sample
Signature GCleaner
Create hunting rule
File size:300'544 bytes
First seen:2024-05-26 01:39:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 8744ff8cb8213e20c3a4b3f29831f2ef (4 x Smoke Loader, 1 x GCleaner)
ssdeep 6144:EWNrAwUuw0YiutuPn4GoaBiNcj2DAhQ7hrIyD0/xQT:ZNrA7t0YiutVNaB7+AhgpL
TLSH T16D54DF01BAD4E470E6A306314C78CAA51A7EFC669D65AB47B3983F0F7C752802F61763
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 11ccc8b0d4e87192 (1 x GCleaner)
Reporter zbetcheckin
Tags:32 exe gcleaner

Intelligence

File Origin
# of uploads :
1
# of downloads :
362
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
6185dca82afc231e003000da31355b2a826a394eb6876f5fad184f6eb9c6bf77.exe
Verdict:
Malicious activity
Analysis date:
2024-05-26 01:40:43 UTC
Tags:
gcleaner loader
Link:
https://app.any.run/tasks/01be836d-b638-40fc-9a47-ca618ec62709

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packer.pkr_ce1a-9980177-0
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=665292fe140b19c8850dea75win7simulatehigh_evasion
Tags:
Network Stealth
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Connection attempt to an infection source
Sending an HTTP GET request to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint packed
Link:
https://www.filescan.io/uploads/665292f44d56d7d1628746c6/reports/aa822786-097a-4cf8-8d37-4ed4e19dd32c/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/6185dca82afc231e003000da31355b2a826a394eb6876f5fad184f6eb9c6bf77
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/48879cda-78c2-4396-9aac-58c24a35eb0c
Result
Threat name:
GCleaner, Nymaim
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1447608
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
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
Yara detected GCleaner
Yara detected Nymaim
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1447608 Sample: kjmaBh77ZS.exe Startdate: 26/05/2024 Architecture: WINDOWS Score: 100 24 185.172.128.69 NADYMSS-ASRU Russian Federation 2->24 28 Multi AV Scanner detection for domain / URL 2->28 30 Found malware configuration 2->30 32 Malicious sample detected (through community Yara rule) 2->32 34 8 other signatures 2->34 8 kjmaBh77ZS.exe 14 2->8         started        signatures3 process4 dnsIp5 26 185.172.128.90, 49730, 80 NADYMSS-ASRU Russian Federation 8->26 36 Detected unpacking (changes PE section rights) 8->36 38 Detected unpacking (overwrites its own PE header) 8->38 12 cmd.exe 8->12         started        14 WerFault.exe 16 8->14         started        16 WerFault.exe 16 8->16         started        18 8 other processes 8->18 signatures6 process7 process8 20 conhost.exe 12->20         started        22 taskkill.exe 12->22         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/6185dca82afc231e003000da31355b2a826a394eb6876f5fad184f6eb9c6bf77
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6185dca82afc231e003000da31355b2a826a394eb6876f5fad184f6eb9c6bf77/
Threat name:
Win32.Trojan.Gcleaner
Create hunting rule
Status:
Malicious
First seen:
2024-05-26 01:40:07 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=mgc5zkbk7qrr4abqadndcnk3fkbguokow2dw6x5ndbhw5oogx53q._file
Verdict:
malicious
Result
Malware family:
gcleaner
Create hunting rule
Score:
  10/10
Tags:
family:gcleaner loader
Link:
https://tria.ge/reports/240526-b3jvvsah87/
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
5.42.64.56
185.172.128.69
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/cce8f9e6-e916-4dfd-a599-c04eaeca86de
Unpacked files
SH256 hash:
3ad9c662c1b0a6e0bc238ecbad6a42334fa579ad9d0590c75fd5afb266795002
MD5 hash:
f6cf8026556a94bc23f4f9d01318c33c
SHA1 hash:
324ed5b6ebe305f59e4683f7cbbb754e876b6328
Detections:
GCleaner
Create hunting rule
win_gcleaner_auto
Create hunting rule
Link:
https://www.unpac.me/results/1d6baed9-c8ff-4b45-b018-e11c18ec0fca/
SH256 hash:
6185dca82afc231e003000da31355b2a826a394eb6876f5fad184f6eb9c6bf77
MD5 hash:
14b027cc047db731cf85c0c9566efee0
SHA1 hash:
c48f20a1e2a1373e48a50cdc20afee9f605a9c9c
Link:
https://www.unpac.me/results/1d6baed9-c8ff-4b45-b018-e11c18ec0fca/
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/6185dca82afc231e003000da31355b2a826a394eb6876f5fad184f6eb9c6bf77

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: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.

Web download

GCleaner

Executable exe 6185dca82afc231e003000da31355b2a826a394eb6876f5fad184f6eb9c6bf77

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2850390/
  
URLhaus
https://urlhaus.abuse.ch/url/2853388/
  
URLhaus
https://urlhaus.abuse.ch/url/2850419/
  
URLhaus
https://urlhaus.abuse.ch/url/2850450/
  
URLhaus
https://urlhaus.abuse.ch/url/2850423/
  
URLhaus
https://urlhaus.abuse.ch/url/2850334/
  
URLhaus
https://urlhaus.abuse.ch/url/2850340/
  
URLhaus
https://urlhaus.abuse.ch/url/2850338/
  
URLhaus
https://urlhaus.abuse.ch/url/2850449/
  
URLhaus
https://urlhaus.abuse.ch/url/2852418/
  
URLhaus
https://urlhaus.abuse.ch/url/2850421/

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::LoadLibraryA
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetVolumeInformationA
KERNEL32.dll::GetStartupInfoW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::AddConsoleAliasA
KERNEL32.dll::AllocConsole
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetConsoleCursorInfo
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::GetSystemDirectoryA
KERNEL32.dll::GetTempPathA
KERNEL32.dll::SetVolumeMountPointW

Comments


Avatar
zbet commented on 2024-05-26 01:39:28 UTC

url : hxxp://5.42.67.23/download.php?pub=univ/