MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a2879dcc287e81b4f8ee2453e0bcb010179fa684f51991a24983d2d72e887cbc. 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

SHA256 hash: a2879dcc287e81b4f8ee2453e0bcb010179fa684f51991a24983d2d72e887cbc
SHA3-384 hash: d7999a2bfd4dc17dffee30f8e53b7a9f304b3f5d84ac853400b3c7dea8050c9b04721cd20a6d15968dd64fabd19a4746
SHA1 hash: f9680dccf710778712efb1876b4a5471a8eaec80
MD5 hash: cc5b0ba0db026f9280c1aa129b3fc13e
humanhash: blossom-nitrogen-lake-oven
File name:file
Download: download sample
Signature GCleaner
File size:2'216'691 bytes
First seen:2023-01-30 16:30:21 UTC
Last seen:2023-01-30 16:58:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 884310b1928934402ea6fec1dbd3cf5e (3'725 x GCleaner, 3'446 x Socks5Systemz, 262 x RaccoonStealer)
ssdeep 49152:2cabCTUlECZCciNl5RJKQpwbG2a8t660W8y7OOiK4d6LCgv2MR:DktZCc2lXJKKwC2a8tIW8y7OlKWSv2MR
TLSH T136A53307D4914175E2CAC3B8686DC727EA73AF84A47532AB70DDA667AF371C25013F22
TrID 75.1% (.EXE) Inno Setup installer (109740/4/30)
9.7% (.EXE) Win32 Executable Delphi generic (14182/79/4)
4.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.0% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.MZP) WinArchiver Mountable compressed Archive (3000/1)
File icon (PE):PE icon
dhash icon a4d6caeab2928ed4 (97 x GCleaner)
Reporter andretavare5
Tags:exe gcleaner


Avatar
andretavare5
Sample downloaded from http://45.12.253.74/pineapple.php?pub=mixinte

Intelligence


File Origin
# of uploads :
15
# of downloads :
199
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-01-30 16:32:19 UTC
Tags:
installer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
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
Sending an HTTP GET request
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
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
CheckCmdLine
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Tags:
greyware overlay packed shell32.dll
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.
Result
Threat name:
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
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
Multi AV Scanner detection for submitted file
Obfuscated command line found
Snort IDS alert for network traffic
Yara detected Nymaim
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 794550 Sample: file.exe Startdate: 30/01/2023 Architecture: WINDOWS Score: 100 48 45.12.253.98 CMCSUS Germany 2->48 50 Snort IDS alert for network traffic 2->50 52 Multi AV Scanner detection for submitted file 2->52 54 Detected unpacking (changes PE section rights) 2->54 56 4 other signatures 2->56 10 file.exe 2 2->10         started        signatures3 process4 file5 32 C:\Users\user\AppData\Local\Temp\...\file.tmp, PE32 10->32 dropped 60 Obfuscated command line found 10->60 14 file.tmp 18 17 10->14         started        signatures6 process7 file8 34 C:\Users\user\AppData\Local\...\_setup64.tmp, PE32+ 14->34 dropped 36 C:\Users\user\AppData\Local\...\_isdecmp.dll, PE32 14->36 dropped 38 C:\Users\user\AppData\Local\...\_iscrypt.dll, PE32 14->38 dropped 40 7 other files (6 malicious) 14->40 dropped 17 finalrecovery.exe 24 14->17         started        process9 dnsIp10 42 45.12.253.56, 49713, 80 CMCSUS Germany 17->42 44 45.12.253.72, 49714, 80 CMCSUS Germany 17->44 46 45.12.253.75, 49715, 80 CMCSUS Germany 17->46 30 C:\Users\user\AppData\...\t9qWEWidF.exe, PE32 17->30 dropped 21 t9qWEWidF.exe 17->21         started        24 cmd.exe 1 17->24         started        file11 process12 signatures13 58 Multi AV Scanner detection for dropped file 21->58 26 taskkill.exe 1 24->26         started        28 conhost.exe 24->28         started        process14
Threat name:
Win32.Trojan.Privateloader
Status:
Malicious
First seen:
2023-01-30 16:31:08 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Verdict:
malicious
Result
Malware family:
gcleaner
Score:
  10/10
Tags:
family:gcleaner discovery loader
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
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:
524a719fc5bd53173bf646b32f041c8cb36b36436873668a00c6c53fec3242b8
MD5 hash:
bbd61fc10d7c742101cd7ddbb0292539
SHA1 hash:
9801496ac3b2835b1cefacde2f10ce943a808abe
Detections:
win_nymaim_g0 Nymaim win_gcleaner_auto
SH256 hash:
875e4f138ff8a571d887037705025a67fed32fff3f951efbd609422168a11f10
MD5 hash:
82b12dd5850bd5b132deb9237c59e6a2
SHA1 hash:
981e12fec7c2e1555575ff232d1d37f4320d8611
SH256 hash:
e3fdd79bd42701e9f6a02868e28f4f63f5fb807acf91e2129f58860e32e2a21e
MD5 hash:
23d1ca2181ddac35e83d80f952030214
SHA1 hash:
7f56958fcc7f5c1585ab84152d0e266e956f461d
SH256 hash:
263f9b6e39c986646e589d23526240b3d35439023920b4604bcbfdb7eb4899a0
MD5 hash:
a9b3dd0384b4975010bf93534a0c106d
SHA1 hash:
7dfe735904e8573e1778f9caf7fdfb269dbbaf51
SH256 hash:
a2879dcc287e81b4f8ee2453e0bcb010179fa684f51991a24983d2d72e887cbc
MD5 hash:
cc5b0ba0db026f9280c1aa129b3fc13e
SHA1 hash:
f9680dccf710778712efb1876b4a5471a8eaec80
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:win_gcleaner_auto
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

Comments