MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b61891afdbd0f476b97f4f217550a659cc4501949d4bdd7c7965fb4c6d23d11a. 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: b61891afdbd0f476b97f4f217550a659cc4501949d4bdd7c7965fb4c6d23d11a
SHA3-384 hash: 02b6a909e30af69b700c858b1c9021274af5347b1185c0025e55eb21a7aa13139e651ba99ea95481b0cf6ce985f2607f
SHA1 hash: 638c217637ee534a5a94dadd7716bb91551290b5
MD5 hash: 375f2921cb799d1bb4eec5ee861aec6f
humanhash: bluebird-king-johnny-cup
File name:file
Download: download sample
Signature GCleaner
Create hunting rule
File size:2'155'546 bytes
First seen:2023-05-24 23:08:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e92b45c54aa05ec107d5ef90662e6b33 (363 x GCleaner, 38 x Socks5Systemz, 3 x Backdoor.TeamViewer)
ssdeep 49152:xioshHhLlUR7LXRyhFzPycyN/l6HWZqbTs8wum:xioQHJlERiPKllfqs/
Threatray 643 similar samples on MalwareBazaar
TLSH T144A533A3867601B3E332DDB10E994844B376FE630D5822593F8C2F9E5B943F1945AB63
TrID 82.8% (.EXE) Inno Setup installer (109740/4/30)
10.7% (.EXE) Win32 Executable Delphi generic (14182/79/4)
3.4% (.EXE) Win32 Executable (generic) (4505/5/1)
1.5% (.EXE) Generic Win/DOS Executable (2002/3)
1.5% (.EXE) DOS Executable Generic (2000/1)
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://45.12.253.74/pineapple.php?pub=mixinte

Intelligence

File Origin
# of uploads :
1
# of downloads :
262
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-05-24 23:10:08 UTC
Tags:
installer gcleaner
Link:
https://app.any.run/tasks/bde643ec-1464-45c5-beb6-2b1cf2288d2c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/391339/
Detection(s):
PUA.Win.Packer.Overlay-1
Create hunting rule

SecuriteInfo.com.FileRepMalware.17312.13638.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
Creating a file in the %AppData% subdirectories
Running batch commands
Creating a process with a hidden window
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/87766/overview
Behaviour
MalwareBazaar
CheckCmdLine
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware installer lolbin overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/646e990f34dbd150fa629f94/reports/26bd839b-04cf-4fc9-94de-7771bf1eae72/overview
Verdict:
Malicious
Labled as:
Win/grayware_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/b61891afdbd0f476b97f4f217550a659cc4501949d4bdd7c7965fb4c6d23d11a
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:
Malicious
Link:
https://analyze.intezer.com/analyses/f0c05fcd-c91f-4053-abbc-14758228cdd7
Result
Threat name:
Nymaim
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1242053
Signature
Antivirus detection for dropped file
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 dropped file
Multi AV Scanner detection for dropped file
Snort IDS alert for network traffic
Yara detected Nymaim
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 875064 Sample: file.exe Startdate: 25/05/2023 Architecture: WINDOWS Score: 100 47 45.12.253.98 CMCSUS Germany 2->47 49 Snort IDS alert for network traffic 2->49 51 Found malware configuration 2->51 53 Antivirus detection for URL or domain 2->53 55 6 other signatures 2->55 10 file.exe 2 2->10         started        signatures3 process4 file5 31 C:\Users\user\AppData\Local\...\is-144BM.tmp, PE32 10->31 dropped 13 is-144BM.tmp 10 23 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 5 other files (4 malicious) 13->39 dropped 16 Rec524.exe 20 13->16         started        process8 dnsIp9 41 45.12.253.56, 49694, 80 CMCSUS Germany 16->41 43 45.12.253.72, 49695, 80 CMCSUS Germany 16->43 45 45.12.253.75, 49696, 80 CMCSUS Germany 16->45 29 C:\Users\user\AppData\...\rK5ocLtZGeDw.exe, PE32 16->29 dropped 20 rK5ocLtZGeDw.exe 16->20         started        23 cmd.exe 1 16->23         started        file10 process11 signatures12 57 Multi AV Scanner detection for dropped file 20->57 25 taskkill.exe 1 23->25         started        27 conhost.exe 23->27         started        process13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b61891afdbd0f476b97f4f217550a659cc4501949d4bdd7c7965fb4c6d23d11a/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2023-05-24 23:09:06 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
13 of 22 (59.09%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wymjdl632d2hnol7j4qxkufglhgekamutvf527dzmx5uy3jd2ena._file
Verdict:
malicious
Similar samples:
1e318a523cb5a76b7ca21cface9d2c638c1eb615ac4ed06f5eaca67ff0bba9a9
GCleaner
28298b9302a467ad92b509e1a961e5d98a5179f9cec7cebd1cfe50e844506a77
GCleaner
2ae6838c037be2085eae1df88aa6e366bcf69b3a10491313b52fe7c610c5c411
GCleaner
4d0aae5d51f0753da2e35d45e7efec62c221a929bae6f16d4da616b57bacd698
GCleaner
5c295da5dcc1e6ca1ffbe68e78ea32cf99854f183c65ead50337d520444bdce6
GCleaner
9bba213d8c710d947cbd8c68897d870e7d92772f0e030cdde4d606ee54851e5a
GCleaner
a1ca328c99d46f70495e5cb5d2072abfc1dfe685d1d3f3486fdb23b404b3e128
GCleaner
addc8eda920ca369df875143e16412ade654c43f5001af7bc269a056597e2550
GCleaner
b27d9e171c06ec10fc59e49327d63a76c650800e489995f775b340c2a41b4f1f
GCleaner
c7cdeea8f124060ec13279254ec685a916b14be11e39fc28968e251a168abcef
GCleaner
+ 633 additional samples on MalwareBazaar
Result
Malware family:
gcleaner
Create hunting rule
Score:
  10/10
Tags:
family:gcleaner discovery loader
Link:
https://tria.ge/reports/230524-244jrsff41/
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
Executes dropped EXE
Loads dropped DLL
GCleaner
Malware Config
C2 Extraction:
45.12.253.56
45.12.253.72
45.12.253.98
45.12.253.75
Unpacked files
SH256 hash:
38fa16df0e8f9d9ccfe122903aad24db5fd5ece53b1e2d5acc8b1ab41f94a2fc
MD5 hash:
a56ca1dea9be333ad29db4a7c69bcda7
SHA1 hash:
622a67807c59f996224c610301493aaaa1792ab6
Detections:
Nymaim
Create hunting rule
win_nymaim_g0
Create hunting rule
win_gcleaner_auto
Create hunting rule
Link:
https://www.unpac.me/results/93584178-8bdb-45f6-aed6-93b455e43af2/
SH256 hash:
2a6c2c3e7c1339adc83a961e34b1b8581be09fa111a44a44314f600454b01d87
MD5 hash:
b7a2b90066cc3a8baf3e0bcabf3184c3
SHA1 hash:
3899587637b1188f1c998099ecaa85ee1de699a3
Link:
https://www.unpac.me/results/93584178-8bdb-45f6-aed6-93b455e43af2/
SH256 hash:
b61891afdbd0f476b97f4f217550a659cc4501949d4bdd7c7965fb4c6d23d11a
MD5 hash:
375f2921cb799d1bb4eec5ee861aec6f
SHA1 hash:
638c217637ee534a5a94dadd7716bb91551290b5
Link:
https://www.unpac.me/results/93584178-8bdb-45f6-aed6-93b455e43af2/
Malware family:
RedNet
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b61891afdbd0/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.98
Link:
https://yomi.yoroi.company/submissions/b61891afdbd0f476b97f4f217550a659cc4501949d4bdd7c7965fb4c6d23d11a

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:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
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
  
URLhaus
https://urlhaus.abuse.ch/url/2509470/
Cape
Cape
https://www.capesandbox.com/analysis/391339/

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