MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c557b1737ec0d359ebc4868caf8a31c2a31ec56954ba51bb39d90312d023dc97. 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: c557b1737ec0d359ebc4868caf8a31c2a31ec56954ba51bb39d90312d023dc97
SHA3-384 hash: a137b48e8014610186858f2b645359b3324263e8d8d19e7aec64fbb0c81bddb4b6b937c096e4c3ae189cd4fdd3c0dfc8
SHA1 hash: eab5439a8423e85da106a93a6c72b5c1f4dcbc7c
MD5 hash: 1b7a268cda81f79539662030b52dba42
humanhash: indigo-whiskey-beryllium-floor
File name:file
Download: download sample
Signature GCleaner
Create hunting rule
File size:2'197'421 bytes
First seen:2023-01-20 18:48:18 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 884310b1928934402ea6fec1dbd3cf5e (3'725 x GCleaner, 3'457 x Socks5Systemz, 262 x RaccoonStealer)
ssdeep 49152:mXIeaIm9oQxcDw/UlhpDmG5XH7hBfoOGBD7K8:KIeaIwoQxcDXhNH7v/uP
TLSH T1A6A5CD742C6AC166F00D62F4FE7160F648FE2D23D05F534BA1553EC7B27C2A2649ABA4
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 0e0f932c2d2d9958 (23 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 :
1
# of downloads :
177
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-01-20 18:51:15 UTC
Tags:
installer
Link:
https://app.any.run/tasks/dadbbbaf-5d40-49b9-bcbd-719cf6f9ab17

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/355046/
Detection(s):
SecuriteInfo.com.Trojan.Moneyinst.746.21331.248.UNOFFICIAL
Create hunting rule

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
Sending a custom TCP request
Running batch commands
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Launching a tool to kill processes
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/61819/overview
Behaviour
MalwareBazaar
CheckCmdLine
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Tags:
greyware overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63cae2201c9cbf7d6250b629/reports/561b49c3-de1c-4544-ada9-4f78f0b98b22/overview
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/85b5185b-e718-4d20-a7ab-a63d2ff4f781
Result
Threat name:
Nymaim
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1155737
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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 788469 Sample: file.exe Startdate: 20/01/2023 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 22 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 24 14->17         started        process9 dnsIp10 42 45.12.253.56, 49697, 80 CMCSUS Germany 17->42 44 45.12.253.72, 49698, 80 CMCSUS Germany 17->44 46 45.12.253.75, 49699, 80 CMCSUS Germany 17->46 30 C:\Users\user\AppData\...\333K7K1i.exe, PE32 17->30 dropped 21 333K7K1i.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
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c557b1737ec0d359ebc4868caf8a31c2a31ec56954ba51bb39d90312d023dc97/
Threat name:
Win32.Trojan.Injuke
Create hunting rule
Status:
Malicious
First seen:
2023-01-20 18:49:08 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
11 of 26 (42.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=yvl3c436ydjvt26eq2gk7crrykrr5rljks5fdozz3ebrfubd3slq._file
Verdict:
malicious
Result
Malware family:
gcleaner
Create hunting rule
Score:
  10/10
Tags:
family:gcleaner discovery loader
Link:
https://tria.ge/reports/230120-xgbs1shc72/
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:
10be9f57bc36e5965eb1d416edbe0919c3a12da72314de8704e6a0f8d3e5798c
MD5 hash:
4c2c71c976cda45904056bf8d93ff687
SHA1 hash:
141bccdebfb4581cbe5e79a5b9355627883c11a6
Detections:
win_nymaim_g0
Create hunting rule
Nymaim
Create hunting rule
win_gcleaner_auto
Create hunting rule
Link:
https://www.unpac.me/results/d44e76e0-ab74-4f61-9256-42fc3912d09f/
SH256 hash:
84a92a6c4465e256a0989b4ad70f76af531a8abfcedfabf5c2565af13086e583
MD5 hash:
71007eb13b8b81382fa15a8122986abb
SHA1 hash:
0253efd69c14fcea561a0ee3d3c56184a0d10b87
Link:
https://www.unpac.me/results/d44e76e0-ab74-4f61-9256-42fc3912d09f/
SH256 hash:
c557b1737ec0d359ebc4868caf8a31c2a31ec56954ba51bb39d90312d023dc97
MD5 hash:
1b7a268cda81f79539662030b52dba42
SHA1 hash:
eab5439a8423e85da106a93a6c72b5c1f4dcbc7c
Link:
https://www.unpac.me/results/d44e76e0-ab74-4f61-9256-42fc3912d09f/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.98
Link:
https://yomi.yoroi.company/submissions/c557b1737ec0d359ebc4868caf8a31c2a31ec56954ba51bb39d90312d023dc97

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
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
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
  
URLhaus
https://urlhaus.abuse.ch/url/2509470/
Cape
Cape
https://www.capesandbox.com/analysis/355046/

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