MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4c8634354c59bb0228575572fbbb7ee291a01e89e584c0709c27804a53d0c4fd. 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: 15


Intelligence 15 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4c8634354c59bb0228575572fbbb7ee291a01e89e584c0709c27804a53d0c4fd
SHA3-384 hash: eb69ce0b0aff715b05d93375c7fd273223cb963ea7946edec5a05dcf65604ec0af27de6840363fdffd909ba58c08574a
SHA1 hash: b791367a56fe28a5f5faa9f218b70c053107fbe6
MD5 hash: 69f27ff577fcd4b0404da585c6edd8cb
humanhash: island-mars-lemon-snake
File name:file
Download: download sample
Signature GCleaner
Create hunting rule
File size:2'567'266 bytes
First seen:2022-10-22 07:15:32 UTC
Last seen:2022-10-22 07:43:56 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 884310b1928934402ea6fec1dbd3cf5e (3'725 x GCleaner, 3'449 x Socks5Systemz, 262 x RaccoonStealer)
ssdeep 49152:Z2BaMDlpzyFfHG1vdSQGkNh3xp3ZWnLloLSqvFhUcOQ5wk4OEA5hq:MBJ+Ffm1vUXk/fJqloL1FhUcOQ5pDq
TLSH T1CEC53382E41D1DB1D072C4B0AD3DA6620A7A7B514D78B8ACFFBDA1DE1F3B7816044369
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://95.214.24.96/load.php?pub=mixinte

Intelligence

File Origin
# of uploads :
17
# of downloads :
235
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
ficker
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2022-10-22 07:18:39 UTC
Tags:
installer loader evasion trojan ficker stealer opendir
Link:
https://app.any.run/tasks/477190e1-78fe-413b-a195-7b9897e33f19

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/322564/
Detection(s):
SecuriteInfo.com.Trojan-Dropper.Win32.Agent.14403.21121.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
Moving a recently created file
Modifying a system file
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Creating a file in the system32 subdirectories
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
Sending an HTTP GET request to an infection source
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/44341/overview
Behaviour
MalwareBazaar
CheckCmdLine
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
greyware overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/635398b3a67b0a5ed57a95ab/reports/b7f2dc71-6d6e-4ce9-a776-abefe6f32157/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.
Malware family:
GCleaner
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9335c0f5-b0f1-4051-82de-83aadef32d80
Result
Threat name:
Nymaim
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1095373
Signature
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
Yara detected Nymaim
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 728016 Sample: file.exe Startdate: 22/10/2022 Architecture: WINDOWS Score: 80 46 45.139.105.1 CMCSUS Italy 2->46 48 85.31.46.167 CLOUDCOMPUTINGDE Germany 2->48 50 Antivirus detection for URL or domain 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 30 C:\Users\user\AppData\Local\...\is-OIEV7.tmp, PE32 10->30 dropped 13 is-OIEV7.tmp 16 25 10->13         started        process6 file7 32 C:\Users\user\AppData\Local\...\_setup64.tmp, PE32+ 13->32 dropped 34 C:\Users\user\AppData\Local\...\_iscrypt.dll, PE32 13->34 dropped 36 C:\...\unins000.exe (copy), PE32 13->36 dropped 38 4 other files (2 malicious) 13->38 dropped 16 epsearcher56.exe 25 13->16         started        process8 dnsIp9 40 107.182.129.235, 49686, 80 META-ASUS Reserved 16->40 42 171.22.30.106, 49687, 80 CMCSUS Germany 16->42 44 45.139.105.171, 49685, 80 CMCSUS Italy 16->44 28 C:\Users\user\AppData\...\hea3WWAsyhtKM.exe, PE32 16->28 dropped 20 cmd.exe 1 16->20         started        22 hea3WWAsyhtKM.exe 16->22         started        file10 process11 process12 24 taskkill.exe 1 20->24         started        26 conhost.exe 20->26         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4c8634354c59bb0228575572fbbb7ee291a01e89e584c0709c27804a53d0c4fd/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2022-10-22 08:18:04 UTC
File Type:
PE (Exe)
Extracted files:
14
AV detection:
16 of 26 (61.54%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jsddinkmlg5qekcxkvzpxo364ki2ahuj4wcma4e4e6aeuu6qyt6q._file
Verdict:
malicious
Result
Malware family:
nymaim
Create hunting rule
Score:
  10/10
Tags:
family:nymaim discovery trojan
Link:
https://tria.ge/reports/221022-h3sw4abde8/
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
NyMaim
Malware Config
C2 Extraction:
45.139.105.171
85.31.46.167
Gathering data
Unpacked files
SH256 hash:
506fc876b589269ea8b86441241470909b2b2746d4afa3136b965bce4f4f3436
MD5 hash:
8fee8e09cb76cfc0051fef1272bd8031
SHA1 hash:
81361cd34ce7e65ae87c04b06294dd387eb50af0
Detections:
win_nymaim_g0
Create hunting rule
win_gcleaner_auto
Create hunting rule
Link:
https://www.unpac.me/results/9369c711-6e54-4ebe-91d9-39acf018a573/
SH256 hash:
60fe58b41933219074c3f935c221ef3ffd2e76e00ef699a6d1703dfb49b7c587
MD5 hash:
e80d0a367c151031867072cc5a690a76
SHA1 hash:
9cc7492a5046b143c95a498804e6a915cca78399
Link:
https://www.unpac.me/results/9369c711-6e54-4ebe-91d9-39acf018a573/
SH256 hash:
3d1e1274e55494d4ac0da16f055e6876e333c81d60eed39d29ace728042b66ed
MD5 hash:
ad7dcb768e2f8a7372f92bcda32c1511
SHA1 hash:
92e7dee8641bc9f87e510fb472f5349a0b581b6d
Link:
https://www.unpac.me/results/9369c711-6e54-4ebe-91d9-39acf018a573/
SH256 hash:
4c8634354c59bb0228575572fbbb7ee291a01e89e584c0709c27804a53d0c4fd
MD5 hash:
69f27ff577fcd4b0404da585c6edd8cb
SHA1 hash:
b791367a56fe28a5f5faa9f218b70c053107fbe6
Link:
https://www.unpac.me/results/9369c711-6e54-4ebe-91d9-39acf018a573/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.68
Link:
https://yomi.yoroi.company/submissions/4c8634354c59bb0228575572fbbb7ee291a01e89e584c0709c27804a53d0c4fd

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:CAS_Malware_Hunting
Create hunting rule
Author:Michael Reinprecht
Description:DEMO CAS YARA Rules for sample2.exe
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
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/2276314/
Cape
Cape
https://www.capesandbox.com/analysis/322564/

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