MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 899ba3da76e6c3c2ab2999d83e23c8b1094931d64d81151b23454d72e6d109a0. 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: 17


Intelligence 17 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 899ba3da76e6c3c2ab2999d83e23c8b1094931d64d81151b23454d72e6d109a0
SHA3-384 hash: 7d36e344109184132877d915f5fe6a792a58ab6b97ed564f28f18152c5eddc5894058c58706198e5364e692b0e613ccb
SHA1 hash: cc630211dfdd45a7415f975467f0adf95ee267cb
MD5 hash: f36a13f6e8ae91604ade8ba9debef047
humanhash: wyoming-oregon-ink-sink
File name:file
Download: download sample
Signature GCleaner
Create hunting rule
File size:2'512'999 bytes
First seen:2022-10-21 15:02:48 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 884310b1928934402ea6fec1dbd3cf5e (3'725 x GCleaner, 3'514 x Socks5Systemz, 262 x RaccoonStealer)
ssdeep 49152:Z2elQ7iFoxsXoSui8j/6H0tBvFSNJHbiNG1OHi9wsLMvl+4KaUuOOA5hq:M+FoqXu/6KRFSv7i4EC9wsLM04tOtDq
TLSH T140C5330705884D33D164AAF1ED27FEB148536F90243F695B72FC81AA5FABD284E142E7
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 :
1
# of downloads :
284
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
ficker
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2022-10-21 15:05:30 UTC
Tags:
installer loader evasion trojan ficker stealer vidar opendir
Link:
https://app.any.run/tasks/4040b622-f4a6-4938-91e5-6654895b8051

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/322335/
Detection(s):
SecuriteInfo.com.Trojan-Dropper.Win32.Agent.14403.21121.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% subdirectories
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
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 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/44160/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/6352b4a7898b0652a4b9411c/reports/4842e31b-f5a4-4b36-a776-4842beb6a091/overview
Result
Verdict:
SUSPICIOUS
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/777ef150-98be-4ed0-88ac-a2175e55b2a3
Result
Threat name:
Nymaim
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1095010
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
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Yara detected Nymaim
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 727651 Sample: file.exe Startdate: 21/10/2022 Architecture: WINDOWS Score: 96 47 45.139.105.1 CMCSUS Italy 2->47 49 85.31.46.167 CLOUDCOMPUTINGDE Germany 2->49 51 Multi AV Scanner detection for domain / URL 2->51 53 Antivirus detection for URL or domain 2->53 55 Detected unpacking (changes PE section rights) 2->55 57 4 other signatures 2->57 10 file.exe 2 2->10         started        signatures3 process4 file5 31 C:\Users\user\AppData\Local\...\is-R5TUQ.tmp, PE32 10->31 dropped 13 is-R5TUQ.tmp 16 25 10->13         started        process6 file7 33 C:\Users\user\AppData\Local\...\_setup64.tmp, PE32+ 13->33 dropped 35 C:\Users\user\AppData\Local\...\_iscrypt.dll, PE32 13->35 dropped 37 C:\...\unins000.exe (copy), PE32 13->37 dropped 39 4 other files (2 malicious) 13->39 dropped 16 ensearcher55.exe 21 13->16         started        process8 dnsIp9 41 107.182.129.235, 49696, 80 META-ASUS Reserved 16->41 43 171.22.30.106, 49697, 80 CMCSUS Germany 16->43 45 45.139.105.171, 49695, 80 CMCSUS Italy 16->45 29 C:\Users\user\AppData\...\hi8mV1XQPW.exe, PE32 16->29 dropped 20 hi8mV1XQPW.exe 16->20         started        23 cmd.exe 1 16->23         started        file10 process11 signatures12 59 Multi AV Scanner detection for dropped file 20->59 25 taskkill.exe 1 23->25         started        27 conhost.exe 23->27         started        process13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/899ba3da76e6c3c2ab2999d83e23c8b1094931d64d81151b23454d72e6d109a0/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2022-10-21 15:23:07 UTC
File Type:
PE (Exe)
Extracted files:
14
AV detection:
14 of 26 (53.85%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rgn2hwtw43b4fkzjthmd4i6iweeusmowjwarkgzdivgxfzwrbgqa._file
Verdict:
malicious
Result
Malware family:
nymaim
Create hunting rule
Score:
  10/10
Tags:
family:nymaim discovery trojan
Link:
https://tria.ge/reports/221021-se1l5sgah9/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Kills process with taskkill
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
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/4a53c876-5547-4199-a2c5-f8129aa2d879
Unpacked files
SH256 hash:
ba3071cd463fad519d4fde2e9c54cf484152a7354245a8d181dff74755096c7d
MD5 hash:
25d4c467169d5ba17fdc30fac686b464
SHA1 hash:
5b1744dfe8f91429dc12a8b7f0ce7fb6e722565b
Detections:
win_nymaim_g0
Create hunting rule
win_gcleaner_auto
Create hunting rule
Link:
https://www.unpac.me/results/a5dfa26d-ef4b-4b31-8a0f-edd8f7c183d9/
SH256 hash:
4134ea5c5157b47a2e365f8d33ecccd3446d7ad0b9aa276003f645b983d629cb
MD5 hash:
51950aaa003ac16ff870ae86cca02bad
SHA1 hash:
462391baa8645042a8aeadbe83ff37be76a42143
Link:
https://www.unpac.me/results/a5dfa26d-ef4b-4b31-8a0f-edd8f7c183d9/
SH256 hash:
899ba3da76e6c3c2ab2999d83e23c8b1094931d64d81151b23454d72e6d109a0
MD5 hash:
f36a13f6e8ae91604ade8ba9debef047
SHA1 hash:
cc630211dfdd45a7415f975467f0adf95ee267cb
Link:
https://www.unpac.me/results/a5dfa26d-ef4b-4b31-8a0f-edd8f7c183d9/
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/899ba3da76e6c3c2ab2999d83e23c8b1094931d64d81151b23454d72e6d109a0

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/322335/

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