MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8b9d58af4572c4b12c46c51917c9bba89236e8414a4f78efca9ab9f14ec19c1b. 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: 8b9d58af4572c4b12c46c51917c9bba89236e8414a4f78efca9ab9f14ec19c1b
SHA3-384 hash: fd51f03a7c8066552c9f90b1000c946a683bc2063445d11a362f865527302755a3ec02f2372756973d0b1373c122c43d
SHA1 hash: 3596f67659fe6b4e1f90c8d501c845f83019fbba
MD5 hash: 2a0a65513961c5512bc7bf09232e6a3c
humanhash: oklahoma-lithium-november-bacon
File name:file
Download: download sample
Signature GCleaner
Create hunting rule
File size:2'588'287 bytes
First seen:2022-11-02 20:04:01 UTC
Last seen:2022-11-02 20:29:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 884310b1928934402ea6fec1dbd3cf5e (3'725 x GCleaner, 3'514 x Socks5Systemz, 262 x RaccoonStealer)
ssdeep 49152:Z2MVbYeEyce0hwuFynedIpmUu0uCS39DVZBt1zj4TuxOCUPqiGWA5hq:MMVseXcC+v0WNDVZ/hj4TuxNCqiGFDq
TLSH T1F0C53309E9A85173C222DEF2585BD6340CFB7C6A6ABB7660174C5CD92F385CCE10EB49
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 :
11
# of downloads :
244
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2022-11-02 20:05:41 UTC
Tags:
installer
Link:
https://app.any.run/tasks/03e59c3d-d69e-48b8-a6bf-caa6fd3b370a

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/327332/
Detection(s):
SecuriteInfo.com.Trojan-Dropper.Win32.Agent.14403.21121.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Searching for the window
Creating a file in the Program Files subdirectories
Moving a file to the Program Files subdirectory
Modifying a system file
Searching for synchronization primitives
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
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 process
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/47544/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/6362cd3558409ff7bc0c9135/reports/370bbb0d-8313-480f-a8b7-0e8c69a50c31/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.
Malware family:
GCleaner
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ebccab3a-a858-403b-b0ff-9283fb875f4b
Result
Threat name:
Nymaim
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1103684
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 domain / URL
Multi AV Scanner detection for dropped file
Yara detected Nymaim
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 736345 Sample: file.exe Startdate: 02/11/2022 Architecture: WINDOWS Score: 96 47 45.139.105.1 CMCSUS Italy 2->47 49 85.31.46.167 CLOUDCOMPUTINGDE Germany 2->49 51 Multi AV Scanner detection for domain / URL 2->51 53 Antivirus detection for URL or domain 2->53 55 Detected unpacking (changes PE section rights) 2->55 57 4 other signatures 2->57 10 file.exe 2 2->10         started        signatures3 process4 file5 31 C:\Users\user\AppData\Local\...\is-OLEBO.tmp, PE32 10->31 dropped 13 is-OLEBO.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 flsearcher67.exe 25 13->16         started        process8 dnsIp9 41 107.182.129.235, 49723, 80 META-ASUS Reserved 16->41 43 171.22.30.106, 49724, 80 CMCSUS Germany 16->43 45 45.139.105.171, 49722, 80 CMCSUS Italy 16->45 29 C:\Users\user\AppData\...\6MRzkPBD3OHfI.exe, PE32 16->29 dropped 20 6MRzkPBD3OHfI.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/8b9d58af4572c4b12c46c51917c9bba89236e8414a4f78efca9ab9f14ec19c1b/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2022-11-02 20:05:11 UTC
File Type:
PE (Exe)
Extracted files:
14
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=roovrl2folclclcgyumrpsn3vcjdn2cbjjhxr36ktk47ctwbtqnq._file
Verdict:
malicious
Result
Malware family:
nymaim
Create hunting rule
Score:
  10/10
Tags:
family:nymaim discovery trojan
Link:
https://tria.ge/reports/221102-ys9pvseabj/
Behaviour
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
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/9102e401-06d8-4d5c-ba52-c753de2a93f1
Unpacked files
SH256 hash:
c7e4ac617768e875ac16a5d4b595d995688c78843a536f39bf3babf17bb1b828
MD5 hash:
7fb7b12df7a5f5402ba18f948a18f13d
SHA1 hash:
609ccb88a89953e6a1aaaa61d44487092f057588
Detections:
win_nymaim_g0
Create hunting rule
Nymaim
Create hunting rule
win_gcleaner_auto
Create hunting rule
Link:
https://www.unpac.me/results/0964405a-459b-467c-afea-d03ba4240824/
SH256 hash:
4a73b97fbbb1f6bf0b87190e8ff2da0210f49e7f8a3981ef5ad949179c6ad6c9
MD5 hash:
17ad5cc56a2d03de49096f3ef5ffc41e
SHA1 hash:
83df29dd808a159808dc3a8855dfa2a039c61d6d
Link:
https://www.unpac.me/results/0964405a-459b-467c-afea-d03ba4240824/
SH256 hash:
7d784fa14603946e9500ec28e63bb9a6658d12648e30613f562c692a9bc5f5f1
MD5 hash:
ebfa15affad1e90927c50cb8b1c6b109
SHA1 hash:
05de10705daa2c79e19e4291641a57a970b5717a
Link:
https://www.unpac.me/results/0964405a-459b-467c-afea-d03ba4240824/
SH256 hash:
8b9d58af4572c4b12c46c51917c9bba89236e8414a4f78efca9ab9f14ec19c1b
MD5 hash:
2a0a65513961c5512bc7bf09232e6a3c
SHA1 hash:
3596f67659fe6b4e1f90c8d501c845f83019fbba
Link:
https://www.unpac.me/results/0964405a-459b-467c-afea-d03ba4240824/
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/8b9d58af4572c4b12c46c51917c9bba89236e8414a4f78efca9ab9f14ec19c1b

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/327332/
  
URLhaus
https://urlhaus.abuse.ch/url/2276314/

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