MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1aa944515ebf7384141869f0b9675d31b10c9f69c2f6a259e1457d10aedf3e85. 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

SHA256 hash: 1aa944515ebf7384141869f0b9675d31b10c9f69c2f6a259e1457d10aedf3e85
SHA3-384 hash: d7abee85c49c759ac5e3d8105c2e00d7b58d209b530f17c8d12f61c8b513fe9e754a5371aaab10310d36810aa4acfceb
SHA1 hash: dbc5117eb1f54ce23d500a8bdcf279fb8f037118
MD5 hash: d6a1c2f03d9646621fefa485271475ec
humanhash: pizza-coffee-mars-alaska
File name:file
Download: download sample
Signature GCleaner
File size:2'734'051 bytes
First seen:2023-02-08 11:31:18 UTC
Last seen:2023-02-08 11:59:42 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:rdHd84LXQ8uOpGTtilcyUye8GSjPP5W4JkrNIEIbovGg8TRKnQ7dT0LCgv2MR:JHdXQ8zYglwVSjPP5WG+NIE1vEtwsavV
TLSH T181C5127CB145C96DC180FDB8882A94E75CD76EE3E9E4A11270DDBF3F81B92859B0A503
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 14b0b0fceeaa3b18 (363 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 :
12
# of downloads :
201
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-02-08 11:34:14 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:
80%
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: 801500 Sample: file.exe Startdate: 08/02/2023 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 17 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 FRec28.exe 24 14->17         started        process9 dnsIp10 42 45.12.253.56, 49715, 80 CMCSUS Germany 17->42 44 45.12.253.72, 49716, 80 CMCSUS Germany 17->44 46 45.12.253.75, 49717, 80 CMCSUS Germany 17->46 30 C:\Users\user\AppData\...\IwM60hO0SFvI.exe, PE32 17->30 dropped 21 IwM60hO0SFvI.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.Downloader.GCleaner
Status:
Malicious
First seen:
2023-02-08 11:32:09 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
17 of 26 (65.38%)
Threat level:
  3/5
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
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:
e8102b2465c6ec31b3cc7794bea8e3472bfbd984f0123d220315b44a1fe67688
MD5 hash:
7f788619c239a462bcae7b4c00fde3a7
SHA1 hash:
4b7bb8b710a38e997b0e21b22b5be276c96b0313
Detections:
win_nymaim_g0 Nymaim win_gcleaner_auto
SH256 hash:
6cc310c07284870fae48b2dfb87409c036ea053ec5367c0bd3ef7090f1c8e094
MD5 hash:
99f6361eb484939df813faad115b2f8a
SHA1 hash:
ec02ee1ea34f7ff58d520f2b7ffeb427f899d911
SH256 hash:
ed2700068de5a3b949c6b67daf5f7fe0216b2fe5348e7af69030a3553c578450
MD5 hash:
a79eaa74629e0f48374fbc2cfce83c7f
SHA1 hash:
6c79867a7adf40c62f6c828c0ae3be5bccfafcac
SH256 hash:
c432fab5c1779fe9416552d16139582150d45fa0ee1231daff32b32fd98738a0
MD5 hash:
3a9332527fc25068c4911b3a9d9089e6
SHA1 hash:
07032abe6c75ef587d8be715f8da549cd7bec325
SH256 hash:
1aa944515ebf7384141869f0b9675d31b10c9f69c2f6a259e1457d10aedf3e85
MD5 hash:
d6a1c2f03d9646621fefa485271475ec
SHA1 hash:
dbc5117eb1f54ce23d500a8bdcf279fb8f037118
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