MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21f4648455f88cae61ae6435b1d4f50cebd4d8037f7cf0b16145e96b8c152f5b. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 21f4648455f88cae61ae6435b1d4f50cebd4d8037f7cf0b16145e96b8c152f5b
SHA3-384 hash: f6b7ed9e6f57d465658b79650c52d220faae9fc444428eaa05aaa986374064c422833f4790148713f23e9d557b7681ac
SHA1 hash: 5d151a912f032cfbbc64b684f37f6c743ef03dc1
MD5 hash: f37aa60c5ad313e681453ba3cd706d6a
humanhash: robert-alanine-oranges-football
File name:file
Download: download sample
Signature GCleaner
Create hunting rule
File size:2'633'071 bytes
First seen:2022-10-31 05:03:42 UTC
Last seen:2022-10-31 05:29:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 884310b1928934402ea6fec1dbd3cf5e (3'725 x GCleaner, 3'446 x Socks5Systemz, 262 x RaccoonStealer)
ssdeep 49152:Z2kifGePz6U97Fm0U63qgvu7Ejls02SgW9CYpCS+6+YF6rZpbn0umjCkDXA5hq:MNfGc/ZFI0Xs02SgW9dkSMYA1pb0GVDq
TLSH T15DC533E186E75A70C1329C787C1C8198C6263BD6597D346ABBAD1A9E7B3C184D8CC7C3
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 :
438
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2022-10-31 05:05:05 UTC
Tags:
installer
Link:
https://app.any.run/tasks/6dd911f0-04d4-4bef-873b-3279e3777012

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/326252/
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
Moving a recently created file
Modifying a system file
Searching for synchronization primitives
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Creating a file in the system32 subdirectories
Sending a custom TCP request
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 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/46922/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/635f574358409ff7bc0c58bd/reports/39789620-2fc7-40c4-9ed9-dd258dada240/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/54be7dd7-266c-4012-bfb0-5a826f5cea69
Result
Threat name:
Nymaim
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1101437
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: 734098 Sample: file.exe Startdate: 31/10/2022 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-GU9HT.tmp, PE32 10->31 dropped 13 is-GU9HT.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 fhsearcher65.exe 25 13->16         started        process8 dnsIp9 41 107.182.129.235, 49700, 80 META-ASUS Reserved 16->41 43 171.22.30.106, 49701, 80 CMCSUS Germany 16->43 45 45.139.105.171, 49697, 80 CMCSUS Italy 16->45 29 C:\Users\user\AppData\...\U1Ol4PnmFQGbc.exe, PE32 16->29 dropped 20 U1Ol4PnmFQGbc.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/21f4648455f88cae61ae6435b1d4f50cebd4d8037f7cf0b16145e96b8c152f5b/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2022-10-31 05:04:09 UTC
File Type:
PE (Exe)
Extracted files:
14
AV detection:
19 of 25 (76.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=eh2gjbcv7cgk4ynomq23dvhvbtv5jwadp56pbmlbixuwxdavf5nq._file
Verdict:
malicious
Result
Malware family:
nymaim
Create hunting rule
Score:
  10/10
Tags:
family:nymaim discovery trojan
Link:
https://tria.ge/reports/221031-fp9lksbabk/
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
Unpacked files
SH256 hash:
5b32fe1701c9d2e7afd045893a67a0ff167db7898fdb582ca2c083c2e479b123
MD5 hash:
4c41c66c61e998c33e1832609387a01f
SHA1 hash:
48f375665f75bf3b414991568b66cbafbcad1d07
Detections:
win_nymaim_g0
Create hunting rule
Nymaim
Create hunting rule
win_gcleaner_auto
Create hunting rule
Link:
https://www.unpac.me/results/a18f320e-5d75-4ffa-a4a6-eff9b341e699/
SH256 hash:
68c346c06dc3fa61201bf0d539b98bc1fab4d890c07578187750af868f982649
MD5 hash:
5f64a28a0d73153fe676a0e80571f048
SHA1 hash:
b144305d3103f4fdbb8555ea6a4e27c7feb843b7
Link:
https://www.unpac.me/results/a18f320e-5d75-4ffa-a4a6-eff9b341e699/
SH256 hash:
62d7c943fbfc43627dcccbdd11249126fda8369e02e5622475edfef2cf83156d
MD5 hash:
5647c8f2569de7986cc55b399f99d33b
SHA1 hash:
a98962b2e8566c2e21d4e800d4006e37bb5590f5
Link:
https://www.unpac.me/results/a18f320e-5d75-4ffa-a4a6-eff9b341e699/
SH256 hash:
21f4648455f88cae61ae6435b1d4f50cebd4d8037f7cf0b16145e96b8c152f5b
MD5 hash:
f37aa60c5ad313e681453ba3cd706d6a
SHA1 hash:
5d151a912f032cfbbc64b684f37f6c743ef03dc1
Link:
https://www.unpac.me/results/a18f320e-5d75-4ffa-a4a6-eff9b341e699/
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/21f4648455f88cae61ae6435b1d4f50cebd4d8037f7cf0b16145e96b8c152f5b

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/326252/
  
URLhaus
https://urlhaus.abuse.ch/url/2276314/

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