MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b81ac244d868d3f18564adb0f111783c8131bbcbbf7a1c31b5337dccdafba9a0. 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: b81ac244d868d3f18564adb0f111783c8131bbcbbf7a1c31b5337dccdafba9a0
SHA3-384 hash: c607ef1633f6eb6f1474b6d96ca6f75698ea9d0daff80c0ba72e23b542719a55750791513cc50236dfd6b9a04c533f8e
SHA1 hash: 1493f8b96726e4ff9c56df883587826700d2287f
MD5 hash: 01748cde56ca3f9ac2dd3fb9ef32453e
humanhash: queen-hamper-cola-carbon
File name:file
Download: download sample
Signature GCleaner
Create hunting rule
File size:2'006'153 bytes
First seen:2023-03-28 12:19:25 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 884310b1928934402ea6fec1dbd3cf5e (3'725 x GCleaner, 3'446 x Socks5Systemz, 262 x RaccoonStealer)
ssdeep 49152:EGlJfsD3flWD81npGwr+/Vi2EWckDUzvlCFCRi5dlLYp:5s3dJr+Q4U0kQPYp
Threatray 2'041 similar samples on MalwareBazaar
TLSH T1CB953399D4E98AB3E3A5C5712C366B256202BB22BD3D6209335D0D8F076B6E4CDB4353
TrID 50.3% (.EXE) Win32 Executable PowerBASIC/Win 9.x (148303/79/28)
37.2% (.EXE) Inno Setup installer (109740/4/30)
4.8% (.EXE) Win32 Executable Delphi generic (14182/79/4)
2.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
1.5% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b298acbab2ca7a72 (2'327 x GCleaner, 1'631 x Socks5Systemz, 67 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 :
1
# of downloads :
264
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-03-28 12:21:16 UTC
Tags:
installer loader opendir
Link:
https://app.any.run/tasks/89b27123-44a6-496d-8840-cda7fdb3e3ea

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/378157/
Detection(s):
SecuriteInfo.com.TR.Spy.KGBSpy.1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP 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
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
Launching a tool to kill processes
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/75407/overview
Behaviour
MalwareBazaar
CheckCmdLine
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware installer overlay packed packed shell32.dll
Link:
https://www.filescan.io/uploads/6422db73f7dd2dc86f479216/reports/60e3cb3e-abd2-4cff-ba99-bc0054a7318a/overview
Verdict:
Malicious
Labled as:
HEUR/AGEN.1251208
Link:
https://www.hybrid-analysis.com/sample/b81ac244d868d3f18564adb0f111783c8131bbcbbf7a1c31b5337dccdafba9a0
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:
Unknown
Link:
https://analyze.intezer.com/analyses/e0528908-aff2-4e9d-ba06-dfd40b67a03a
Result
Threat name:
Nymaim
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1203412
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
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
Snort IDS alert for network traffic
Yara detected Nymaim
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 836324 Sample: file.exe Startdate: 28/03/2023 Architecture: WINDOWS Score: 100 38 45.12.253.98 CMCSUS Germany 2->38 46 Snort IDS alert for network traffic 2->46 48 Antivirus detection for URL or domain 2->48 50 Antivirus detection for dropped file 2->50 52 7 other signatures 2->52 10 file.exe 2 2->10         started        signatures3 process4 process5 12 is-EKSAU.tmp 11 24 10->12         started        file6 30 C:\Users\user\AppData\Local\...\_setup64.tmp, PE32+ 12->30 dropped 32 C:\Users\user\AppData\Local\...\_iscrypt.dll, PE32 12->32 dropped 34 C:\...\unins000.exe (copy), PE32 12->34 dropped 36 6 other files (4 malicious) 12->36 dropped 15 FRec328.exe 23 12->15         started        process7 dnsIp8 40 45.12.253.56, 49707, 80 CMCSUS Germany 15->40 42 45.12.253.72, 49709, 80 CMCSUS Germany 15->42 44 2 other IPs or domains 15->44 28 C:\Users\user\AppData\...\29SA9PsH0O.exe, PE32 15->28 dropped 19 29SA9PsH0O.exe 15->19         started        22 cmd.exe 1 15->22         started        file9 process10 signatures11 54 Multi AV Scanner detection for dropped file 19->54 24 taskkill.exe 1 22->24         started        26 conhost.exe 22->26         started        process12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b81ac244d868d3f18564adb0f111783c8131bbcbbf7a1c31b5337dccdafba9a0/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Suspicious
First seen:
2023-03-28 12:20:08 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xanmergyndj7dblevwypcelyhsatdo6lx55bymnvgn64zwx3vgqa._file
Verdict:
malicious
Similar samples:
665687b64c26cd4019dd0e43415dd4978c2ed59c7c897462f3cd64c4920e380b
GCleaner
72238987f1f659c6e41a74a077ea43fd07d6709be29e1f20546ba6f9ebeccc1a
GCleaner
83660b75c4e4dc6041398055ea66a6815b0b8144551aa4d45fda83c05dba9277
GCleaner
84cc827150e0aeb82f1e7b4abd98332c49b45be6ac8f4df9fbd516633c452d0f
GCleaner
8a58ec8781e8b2835a2d33a6a4412b4ce0674be037eba31a55c8cefe56c903c1
GCleaner
a41e45e14795bb60ef20aa47780ddd8cdc491e7e23c16594a7af91c4f3e817cd
GCleaner
db1800a95c8908bb39c03543f8ee553b838df5065c1195447f82c8305e1754c3
GCleaner
f9757bc4b64757aade6871dbdcb59d64ad51a7dee7f30834e27c6bda5f3b201a
GCleaner
+ 2'031 additional samples on MalwareBazaar
Result
Malware family:
gcleaner
Create hunting rule
Score:
  10/10
Tags:
family:gcleaner discovery loader
Link:
https://tria.ge/reports/230328-phra4aah89/
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
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:
e52344c93ac56bc294d6bc07dbb218fcf5aa0d34e3969384740ba55a7470d9e5
MD5 hash:
b53acf206050c5b954cecef0777f7246
SHA1 hash:
230d491808fb32ad4792b418fd1597085c71ee0d
Detections:
Nymaim
Create hunting rule
win_nymaim_g0
Create hunting rule
win_gcleaner_auto
Create hunting rule
Link:
https://www.unpac.me/results/fd40573a-5a91-43be-a32d-48b909ac0fa3/
SH256 hash:
77e331e0def801a8eb3a38b7fb02133d3f57712c280416db18f711948e8b5aa9
MD5 hash:
77459a208f03ed5b4d6bae68672d4a6f
SHA1 hash:
c8917b1d93c1c49212fde69ffc57ff5eb861a9ed
Link:
https://www.unpac.me/results/fd40573a-5a91-43be-a32d-48b909ac0fa3/
SH256 hash:
eae63270c0a66b7968125c0dca63f24f85f9d6574e1450199d2988247fabc637
MD5 hash:
587c819955934c38dd2d8763c1be6384
SHA1 hash:
2b4e830b66bf89ee98e84409451022ca625488f2
Link:
https://www.unpac.me/results/fd40573a-5a91-43be-a32d-48b909ac0fa3/
SH256 hash:
b81ac244d868d3f18564adb0f111783c8131bbcbbf7a1c31b5337dccdafba9a0
MD5 hash:
01748cde56ca3f9ac2dd3fb9ef32453e
SHA1 hash:
1493f8b96726e4ff9c56df883587826700d2287f
Link:
https://www.unpac.me/results/fd40573a-5a91-43be-a32d-48b909ac0fa3/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b81ac244d868d3f18564adb0f111783c8131bbcbbf7a1c31b5337dccdafba9a0

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
Cape
Cape
https://www.capesandbox.com/analysis/378157/
  
URLhaus
https://urlhaus.abuse.ch/url/2509470/

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