MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b78995ddf498001308062437884e8498b51a831504a1fe82a497075a0b149600. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b78995ddf498001308062437884e8498b51a831504a1fe82a497075a0b149600
SHA3-384 hash: ff17600681f9698a508369ca87ece7ae8fab3a5c473252ab62dac324738bd0f2fc9697a605904a72755266740823b685
SHA1 hash: 1d8233898cde7c7dca9a1e7ab6c367ded8360c51
MD5 hash: 96b88cd75c65a55220a450a4db26ed42
humanhash: arkansas-sink-timing-uniform
File name:file
Download: download sample
Signature GCleaner
Create hunting rule
File size:2'545'117 bytes
First seen:2022-10-24 02:16:47 UTC
Last seen:2022-10-24 02:59:18 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:Z24ZYT1y4XT7p3vizhiZePvFBa4cOtAORoPVjxmNTKSbNTY3YBFA5hq:MF1rXPUzIZUv/Nc8PGxmNTKSx83YBmDq
TLSH T142C533C2C30A8136E611F577DD1E65480BF9BA7A2F3868BCB88D6F950F71AD9AC05341
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 :
21
# of downloads :
245
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2022-10-24 02:18:16 UTC
Tags:
installer
Link:
https://app.any.run/tasks/e601aeac-3a72-4fbe-9bef-c295d830bba1

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/323148/
Detection(s):
SecuriteInfo.com.Trojan-Dropper.Win32.Agent.14403.21121.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% subdirectories
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
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
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/44859/overview
Behaviour
MalwareBazaar
CheckCmdLine
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:
Unknown
Link:
https://analyze.intezer.com/analyses/35cd408a-aefe-4e2f-8149-6b2b4a5c237b
Result
Threat name:
Nymaim
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1096143
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: 728784 Sample: file.exe Startdate: 24/10/2022 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-V8ELK.tmp, PE32 10->31 dropped 13 is-V8ELK.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 ersearcher57.exe 21 13->16         started        process8 dnsIp9 41 107.182.129.235, 49696, 80 META-ASUS Reserved 16->41 43 171.22.30.106, 49697, 80 CMCSUS Germany 16->43 45 45.139.105.171, 49695, 80 CMCSUS Italy 16->45 29 C:\Users\user\AppData\...\4sEZuMjeoRlBn.exe, PE32 16->29 dropped 20 4sEZuMjeoRlBn.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/b78995ddf498001308062437884e8498b51a831504a1fe82a497075a0b149600/
Threat name:
Win32.Trojan.Cerbu
Create hunting rule
Status:
Malicious
First seen:
2022-10-24 03:12:36 UTC
File Type:
PE (Exe)
Extracted files:
14
AV detection:
12 of 42 (28.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w6ezlxputaabgcageq3yqtuetc2rvayvasq75aves4dvucyusyaa._file
Verdict:
malicious
Result
Malware family:
nymaim
Create hunting rule
Score:
  10/10
Tags:
family:nymaim discovery trojan
Link:
https://tria.ge/reports/221024-cqpq1seacp/
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:
464a056c89657368b51a038971c9a8edb7c75fd1eab6937731a046e1a4a26593
MD5 hash:
79369df3fa1df0a53fc759b80a729899
SHA1 hash:
25ba9f4935798b3dc5d7f43ea6c5e344745976bb
Detections:
win_nymaim_g0
Create hunting rule
win_gcleaner_auto
Create hunting rule
Link:
https://www.unpac.me/results/fcfb9609-eea7-4b03-9edc-c6e98c094810/
SH256 hash:
8503e0060cecdf87d64fc46eb5dcf44f0e772b4584e072f0b6fd225e254c955a
MD5 hash:
7b8860661df5b9b022ef83be9612b478
SHA1 hash:
8ee6743b58af188d8002781a7c3f6b169a1f92a6
Link:
https://www.unpac.me/results/fcfb9609-eea7-4b03-9edc-c6e98c094810/
SH256 hash:
b78995ddf498001308062437884e8498b51a831504a1fe82a497075a0b149600
MD5 hash:
96b88cd75c65a55220a450a4db26ed42
SHA1 hash:
1d8233898cde7c7dca9a1e7ab6c367ded8360c51
Link:
https://www.unpac.me/results/fcfb9609-eea7-4b03-9edc-c6e98c094810/
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/b78995ddf498001308062437884e8498b51a831504a1fe82a497075a0b149600

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/323148/
  
URLhaus
https://urlhaus.abuse.ch/url/2276314/

Comments