MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8b528f0a429658ec20b77ad48aaa05a33ef2c01503d6c4e8453695cd8729eaba. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments

SHA256 hash: 8b528f0a429658ec20b77ad48aaa05a33ef2c01503d6c4e8453695cd8729eaba
SHA3-384 hash: cac32139955d5ee65b83e70e850ad2fa28201ad18aacd8d0dd063466275fdab4c57bfce3d0de91ee493e3fff3fa22eb0
SHA1 hash: 2f290827ff32732c329d43c75e14582afdc78d14
MD5 hash: e753af5ca417f91e30d48342ced32ef0
humanhash: eighteen-salami-timing-stream
File name:file
Download: download sample
Signature GCleaner
File size:2'244'333 bytes
First seen:2023-01-30 00:32:24 UTC
Last seen:2023-01-30 00:58:06 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:okug+jL0MlGVNTTZgj3PUu90CLPVDepXf7p+NyIkCk63QdoLCgv2MR:hug+jL1+3g78vSKXS9kCCgv2MR
TLSH T17CA5338634D0CB7EE62782BB56344540FFB6AEC6703E26107645B3CE1EB617117A63AC
TrID 78.6% (.EXE) Inno Setup installer (109740/4/30)
10.1% (.EXE) Win32 Executable Delphi generic (14182/79/4)
3.2% (.EXE) Win32 Executable (generic) (4505/5/1)
2.1% (.MZP) WinArchiver Mountable compressed Archive (3000/1)
1.4% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon 71f0e0ccccf0f0f0 (204 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 :
13
# of downloads :
206
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-01-30 00:34:33 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: 793945 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, 49696, 80 CMCSUS Germany 17->42 44 45.12.253.72, 49697, 80 CMCSUS Germany 17->44 46 45.12.253.75, 49698, 80 CMCSUS Germany 17->46 30 C:\Users\user\AppData\...\mV1IjnCax7FE.exe, PE32 17->30 dropped 21 mV1IjnCax7FE.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 00:33:09 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
15 of 25 (60.00%)
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:
0524f80b184a8c9a2cfbea6bd2e568418576031786b14e91ff53e40accdadfd9
MD5 hash:
4e3a00505090a2d6be45abd8eabbf928
SHA1 hash:
f1a4541ba5c193d6de75440c77723b7eb2b82990
Detections:
win_nymaim_g0 Nymaim win_gcleaner_auto
SH256 hash:
eb23d2eb45e2d47d3eaffe6b0c843bbd481475532b334b337bd39f009d5b5b29
MD5 hash:
05c134fd4428b46b265001a793c678e4
SHA1 hash:
9b373e381b5249b50938b621cc68d2ac574db6f3
SH256 hash:
d4f52b7d966c476dee40c677a9d9f224e55c592ee287660cd292e91eccd11848
MD5 hash:
9824254bb5cd741b93eec8e623580685
SHA1 hash:
0de975cd3955849f4c668eed5bb5f8b45f940d36
SH256 hash:
c002bff408894879a8fe6d119382c3cbc89165465e64e857b135a781d9fa413d
MD5 hash:
2e7981202945fcaf64e5f6efed29f389
SHA1 hash:
015cf55f44875f34fd0540bf4a3e2cca1792fd6b
SH256 hash:
8b528f0a429658ec20b77ad48aaa05a33ef2c01503d6c4e8453695cd8729eaba
MD5 hash:
e753af5ca417f91e30d48342ced32ef0
SHA1 hash:
2f290827ff32732c329d43c75e14582afdc78d14
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