MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91c9550525e7c4815c258d626cc3e60ecfd4ee8aa9a8c8b8f89a3c0ced57449b. 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: 91c9550525e7c4815c258d626cc3e60ecfd4ee8aa9a8c8b8f89a3c0ced57449b
SHA3-384 hash: 8184b887753e0d5860215d140f75c6facb257e07f7788de6eba0c49de57b9785a4f6f2f070f3e3dd5eee4f0010ba152a
SHA1 hash: 53ad1cc3c29f73b3fd2b13ebd6cbd41b5d7f3f87
MD5 hash: ecf701dff8e4cbf7aaa5de5b88f388e7
humanhash: mobile-speaker-autumn-earth
File name:file
Download: download sample
Signature GCleaner
File size:2'230'007 bytes
First seen:2023-02-02 02:01:45 UTC
Last seen:2023-02-02 03:44:04 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 884310b1928934402ea6fec1dbd3cf5e (3'725 x GCleaner, 3'494 x Socks5Systemz, 262 x RaccoonStealer)
ssdeep 49152:icPLnQdazwwAgedPWuvNgCCeUrafdV4RVIY7pTjYXpZLCgv2MR:XPLnQSRIVgS34UY7d0zv2MR
TLSH T1F5A533229879CD37D1513EF84921C072F3B16E9A367A8301B1E67E4B377EB924C09B56
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 0b4b00e07490e030 (49 x GCleaner, 1 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 :
57
# of downloads :
196
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-02-02 02:03:04 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:
92 / 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
Obfuscated command line found
Snort IDS alert for network traffic
Yara detected Nymaim
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 796658 Sample: file.exe Startdate: 02/02/2023 Architecture: WINDOWS Score: 92 48 45.12.253.98 CMCSUS Germany 2->48 50 Snort IDS alert for network traffic 2->50 52 Detected unpacking (changes PE section rights) 2->52 54 Detected unpacking (overwrites its own PE header) 2->54 56 3 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 16 10->14         started        signatures6 process7 file8 34 C:\Users\user\AppData\Local\...\_setup64.tmp, PE32+ 14->34 dropped 36 C:\Users\user\AppData\Local\...\_iscrypt.dll, PE32 14->36 dropped 38 C:\Users\user\AppData\Local\...\_RegDLL.tmp, PE32 14->38 dropped 40 6 other files (5 malicious) 14->40 dropped 17 finalrecovery.exe 20 14->17         started        process9 dnsIp10 42 45.12.253.56, 49695, 80 CMCSUS Germany 17->42 44 45.12.253.72, 49696, 80 CMCSUS Germany 17->44 46 45.12.253.75, 49697, 80 CMCSUS Germany 17->46 30 C:\Users\user\AppData\...\OJvdXv4xl9ELi.exe, PE32 17->30 dropped 21 OJvdXv4xl9ELi.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:
2023-02-02 02:08:48 UTC
AV detection:
17 of 26 (65.38%)
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 behavior: GetForegroundWindowSpam
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:
ff9ce3574409a560b83ee033ca9039db1dd9d7f0c26d86a14b63475b89bfe624
MD5 hash:
5337a7e1018ac53657cce2289efa9625
SHA1 hash:
70286e19e0ea257b553ab8b003844319e7ba7106
Detections:
win_nymaim_g0 Nymaim win_gcleaner_auto
SH256 hash:
9f944f2b226d4a550da6577d2555c5d602ae211737830ff8685b827928869047
MD5 hash:
1c06daad6a55e3137d9dc15866263b7c
SHA1 hash:
db881f4dabf35c969eb3824d1958a2c3f9c797af
SH256 hash:
91c9550525e7c4815c258d626cc3e60ecfd4ee8aa9a8c8b8f89a3c0ced57449b
MD5 hash:
ecf701dff8e4cbf7aaa5de5b88f388e7
SHA1 hash:
53ad1cc3c29f73b3fd2b13ebd6cbd41b5d7f3f87
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