MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b6af8c41d0c5156db458f0d98724084ad90edf2ffec05dd14ba9efd31eabb45c. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b6af8c41d0c5156db458f0d98724084ad90edf2ffec05dd14ba9efd31eabb45c
SHA3-384 hash: f1dbfbea22f89da090c8b7abdd91e726ca561e420a7471905cd321755f3832d7844cba3a566c8c31a163dcbd68f06dc6
SHA1 hash: 82ba51a65b167a880dc46852958471210525c646
MD5 hash: 6b5e49f701164067d40c9c8972a8b44b
humanhash: river-ceiling-muppet-march
File name:file
Download: download sample
Signature GCleaner
Create hunting rule
File size:2'541'203 bytes
First seen:2022-10-22 15:30:41 UTC
Last seen:2022-10-22 15:57:33 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 884310b1928934402ea6fec1dbd3cf5e (3'725 x GCleaner, 3'455 x Socks5Systemz, 262 x RaccoonStealer)
ssdeep 49152:Z235tL5W3gn7zTISXk4BsyF/pwT8MG2t1HeiRfs18HaGRmAA5hq:MzsGzTIzvyxpPMB1+Ks18H7RWDq
TLSH T1B7C53351A5D9C933D1D1AAB46D3A6934CB7B2C6624349D12F7ACEB888F3F6D0E520331
TrID 50.3% (.EXE) Win32 Executable PowerBASIC/Win 9.x (148303/79/28)
37.2% (.EXE) Inno Setup installer (109740/4/30)
4.8% (.EXE) Win32 Executable Delphi generic (14182/79/4)
2.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
1.5% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b298acbab2ca7a72 (2'327 x GCleaner, 1'631 x Socks5Systemz, 67 x RedLineStealer)
Reporter andretavare5
Tags:exe gcleaner


Avatar
andretavare5
Sample downloaded from http://95.214.24.96/load.php?pub=mixinte

Intelligence

File Origin
# of uploads :
15
# of downloads :
307
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
ficker
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2022-10-22 15:31:46 UTC
Tags:
installer loader evasion trojan ficker stealer vidar opendir
Link:
https://app.any.run/tasks/525b4c23-e305-4487-907c-cf79742c38c6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Nymaim
Create hunting rule
Link:
https://www.capesandbox.com/analysis/322691/
Detection(s):
SecuriteInfo.com.Trojan-Dropper.Win32.Agent.14403.21121.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% subdirectories
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Creating a file
Moving a recently created file
Modifying a system file
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Sending a custom TCP request
Creating a file in the system32 subdirectories
Moving a file to the %AppData% subdirectory
Running batch commands
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Creating a file in the Windows subdirectories
Launching a tool to kill processes
Sending an HTTP GET request to an infection source
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/44460/overview
Behaviour
MalwareBazaar
CheckCmdLine
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
greyware overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63540cb7898b0652a4b95e38/reports/8f1a26ba-6877-4e84-a087-63a663d607ca/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/6cb8da38-242f-4dba-851f-6e79e3e0329d
Result
Threat name:
Nymaim
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1095548
Signature
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)
Machine Learning detection for dropped file
Multi AV Scanner detection for dropped file
Yara detected Nymaim
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 728189 Sample: file.exe Startdate: 22/10/2022 Architecture: WINDOWS Score: 88 47 45.139.105.1 CMCSUS Italy 2->47 49 85.31.46.167 CLOUDCOMPUTINGDE Germany 2->49 51 Antivirus detection for URL or domain 2->51 53 Detected unpacking (changes PE section rights) 2->53 55 Detected unpacking (overwrites its own PE header) 2->55 57 3 other signatures 2->57 10 file.exe 2 2->10         started        signatures3 process4 file5 31 C:\Users\user\AppData\Local\...\is-0O7GS.tmp, PE32 10->31 dropped 13 is-0O7GS.tmp 16 25 10->13         started        process6 file7 33 C:\Users\user\AppData\Local\...\_setup64.tmp, PE32+ 13->33 dropped 35 C:\Users\user\AppData\Local\...\_iscrypt.dll, PE32 13->35 dropped 37 C:\...\unins000.exe (copy), PE32 13->37 dropped 39 4 other files (2 malicious) 13->39 dropped 16 epsearcher56.exe 25 13->16         started        process8 dnsIp9 41 107.182.129.235, 49704, 80 META-ASUS Reserved 16->41 43 171.22.30.106, 49705, 80 CMCSUS Germany 16->43 45 45.139.105.171, 49701, 80 CMCSUS Italy 16->45 29 C:\Users\user\AppData\...\tS3CyTBfbM8.exe, PE32 16->29 dropped 20 tS3CyTBfbM8.exe 16->20         started        23 cmd.exe 1 16->23         started        file10 process11 signatures12 59 Multi AV Scanner detection for dropped file 20->59 25 taskkill.exe 1 23->25         started        27 conhost.exe 23->27         started        process13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b6af8c41d0c5156db458f0d98724084ad90edf2ffec05dd14ba9efd31eabb45c/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2022-10-22 16:17:27 UTC
File Type:
PE (Exe)
Extracted files:
14
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w2xyyqoqyukw3ncy6dmyojaijlmq5xzp73af3uklvhx5ghvlwroa._file
Verdict:
malicious
Result
Malware family:
nymaim
Create hunting rule
Score:
  10/10
Tags:
family:nymaim discovery trojan
Link:
https://tria.ge/reports/221022-sx2l6adha4/
Behaviour
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Checks installed software on the system
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
NyMaim
Malware Config
C2 Extraction:
45.139.105.171
85.31.46.167
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/71e3a477-dca3-4b88-952a-7f6a63fbe4b6
Unpacked files
SH256 hash:
a829a59d4d27832fe22deaa067b218353af32b95dbd3725426dca78411e5c5ce
MD5 hash:
987e92b5f14ecfbaed6ce3d9b4e241ea
SHA1 hash:
d90e71f535b93e54102bfeb5f7b5a45108a1d5ac
Detections:
win_nymaim_g0
Create hunting rule
win_gcleaner_auto
Create hunting rule
Link:
https://www.unpac.me/results/5a72536a-0263-419f-a4cd-c2130df07877/
SH256 hash:
e3749b1f970c05b7b7a09953f34c7888ebfaffb814c899dc3407385b573fca52
MD5 hash:
1d8382986f2f9c9f8762360cf3c126f5
SHA1 hash:
d949a2c4ca2baaad4fc549b77892bc9a848bc885
Link:
https://www.unpac.me/results/5a72536a-0263-419f-a4cd-c2130df07877/
SH256 hash:
b6af8c41d0c5156db458f0d98724084ad90edf2ffec05dd14ba9efd31eabb45c
MD5 hash:
6b5e49f701164067d40c9c8972a8b44b
SHA1 hash:
82ba51a65b167a880dc46852958471210525c646
Link:
https://www.unpac.me/results/5a72536a-0263-419f-a4cd-c2130df07877/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.68
Link:
https://yomi.yoroi.company/submissions/b6af8c41d0c5156db458f0d98724084ad90edf2ffec05dd14ba9efd31eabb45c

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:CAS_Malware_Hunting
Create hunting rule
Author:Michael Reinprecht
Description:DEMO CAS YARA Rules for sample2.exe
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.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.

  
Dropped by
PrivateLoader
  
Delivery method
Distributed via drive-by
Cape
Cape
https://www.capesandbox.com/analysis/322691/
  
URLhaus
https://urlhaus.abuse.ch/url/2276314/

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