MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 28f9c5ac434acfa186955711a11607f7ccf1f9234de629cca1c1358163f6df26. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 28f9c5ac434acfa186955711a11607f7ccf1f9234de629cca1c1358163f6df26
SHA3-384 hash: 19e6ebc33b5c573378c780fc45107fc83974e4225989c40833d6a8113a8b3981fdbe3018f220a860a2438d84e7e5854a
SHA1 hash: baf682067c3d84531781089a317cde57ca463b3a
MD5 hash: d90e76a01752e5a7ed3b98cf902e5d93
humanhash: three-batman-oven-red
File name:d90e76a01752e5a7ed3b98cf902e5d93.exe
Download: download sample
Signature GCleaner
Create hunting rule
File size:1'857'887 bytes
First seen:2023-05-05 11:55:06 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash da86ff6d22d7419ae7f10724a403dffd (1'679 x GCleaner, 1 x Socks5Systemz)
ssdeep 49152:sW5sOhMB23pQ7FGNBmnQNyeHWU5aCAG5cb:sW5sSV3pQ72mnQIeHV5aCXcb
Threatray 3'104 similar samples on MalwareBazaar
TLSH T1D485330BCBA3147AC256D7708CEC98349A72BDB4297B540AB7C18ACE5FDE1F49C70166
TrID 81.0% (.EXE) Inno Setup installer (109740/4/30)
10.4% (.EXE) Win32 Executable Delphi generic (14182/79/4)
3.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.2% (.MZP) WinArchiver Mountable compressed Archive (3000/1)
1.4% (.EXE) Generic Win/DOS Executable (2002/3)
File icon (PE):PE icon
dhash icon b298acbab2ca7a72 (2'327 x GCleaner, 1'631 x Socks5Systemz, 67 x RedLineStealer)
Reporter abuse_ch
Tags:exe gcleaner

Intelligence

File Origin
# of uploads :
1
# of downloads :
210
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
d90e76a01752e5a7ed3b98cf902e5d93.exe
Verdict:
Malicious activity
Analysis date:
2023-05-05 11:58:19 UTC
Tags:
installer gcleaner
Link:
https://app.any.run/tasks/92dedd3f-38f1-46ab-be41-34762ee859ac

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/386844/
Detection(s):
PUA.Win.Packer.Overlay-1
Create hunting rule

SecuriteInfo.com.Win32.Malware-gen.24316.29731.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
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/82661/overview
Behaviour
MalwareBazaar
CheckCmdLine
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
gcleaner greyware installer overlay packed packed
Link:
https://www.filescan.io/uploads/6454eed36f1da0943fbfe194/reports/8d646ec4-5668-4ac3-8130-3d5600838335/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/28f9c5ac434acfa186955711a11607f7ccf1f9234de629cca1c1358163f6df26
Result
Verdict:
MALICIOUS
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/be6d3614-aafe-4873-8667-259190b97259
Result
Threat name:
Nymaim
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1227194
Signature
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)
Found malware configuration
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: 860158 Sample: TphmtQHNU1.exe Startdate: 05/05/2023 Architecture: WINDOWS Score: 100 47 45.12.253.98 CMCSUS Germany 2->47 49 Snort IDS alert for network traffic 2->49 51 Found malware configuration 2->51 53 Antivirus detection for URL or domain 2->53 55 7 other signatures 2->55 10 TphmtQHNU1.exe 2 2->10         started        signatures3 process4 file5 31 C:\Users\user\AppData\Local\...\is-2BPVH.tmp, PE32 10->31 dropped 13 is-2BPVH.tmp 14 23 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 5 other files (4 malicious) 13->39 dropped 16 Rec54.exe 24 13->16         started        process8 dnsIp9 41 45.12.253.56, 49700, 80 CMCSUS Germany 16->41 43 45.12.253.72, 49701, 80 CMCSUS Germany 16->43 45 45.12.253.75, 49702, 80 CMCSUS Germany 16->45 29 C:\Users\user\AppData\Roaming\...\zsv4jO.exe, PE32 16->29 dropped 20 zsv4jO.exe 16->20         started        23 cmd.exe 1 16->23         started        file10 process11 signatures12 57 Multi AV Scanner detection for dropped file 20->57 25 taskkill.exe 1 23->25         started        27 conhost.exe 23->27         started        process13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/28f9c5ac434acfa186955711a11607f7ccf1f9234de629cca1c1358163f6df26/
Threat name:
Win32.Trojan.Nekark
Create hunting rule
Status:
Malicious
First seen:
2023-05-05 01:08:50 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
14 of 36 (38.89%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=fd44llcdjlh2dbuvk4i2cfqh67gpd6jdjxtcttfbye2ycy7w34ta._file
Verdict:
malicious
Similar samples:
121a989787cc300ec5239c8e4da3823e38d302604f0b14ccb1c560294b33f462
GCleaner
15d6bf017cea7a3c15d078cc48fe69e579fe6ae3dfc170fb0dd4a9f27926e19e
GCleaner
38cf550bdfc6ee19117649f70a28eba50610a4abc737c3bb908935ffce2620b6
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3d7299a0ffa6067676f8b49b6fbd85d32a9b9597355712b293e2a94ad4a362b5
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59d0a86e29a877fe6ab943b03f01a553274e626eb5f2da49605b98aaa23e6ab4
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6ea56da5d33549744187c65f81749be722d2e5d8ae1bc93e0d61d2e8d2fb74cf
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7c4af0439fa5ea83916252977f59415c652b7efe851c79a17bda55f1b77a890f
GCleaner
819c80050c2c41c85c28f745b153bef2ebe52a8c468182f5e3fe44a816fca109
GCleaner
8ffab91769a6ff3e57f1c5b26f580e0fe41e6dfe5cf05154dbcb77f181508d49
GCleaner
bf7d9b82ff0c3842fbd1dff7ffa94389d376af2b5d01ce504072f7985b556325
GCleaner
+ 3'094 additional samples on MalwareBazaar
Result
Malware family:
gcleaner
Create hunting rule
Score:
  10/10
Tags:
family:gcleaner discovery loader
Link:
https://tria.ge/reports/230505-n3gfysab67/
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:
c3edee165369af0df6a5e8aa282169e3398fbaa385acd7e3052124767734fba5
MD5 hash:
0175ece352a51c6c64a8faf1c3a9d98e
SHA1 hash:
dcbced3171d04565cadad6b08215844c5508613f
Detections:
Nymaim
Create hunting rule
win_nymaim_g0
Create hunting rule
win_gcleaner_auto
Create hunting rule
Link:
https://www.unpac.me/results/22b25e6f-3997-4f49-ac39-d2ebc12e55de/
SH256 hash:
e9eecd5d95b06b2f06ec112f76bc8f851494bc74193ea8fb43179bd63a753902
MD5 hash:
cd37fc7ed5e4bd8b8c6a6d7fe133407d
SHA1 hash:
f9575417eb69e3b96d125e3e41013dede440a524
Link:
https://www.unpac.me/results/22b25e6f-3997-4f49-ac39-d2ebc12e55de/
SH256 hash:
3c68aa310e46481907a531bea4f2bfe0c5a8080230cef81f32d290e6333764a7
MD5 hash:
72680c2a2179eecf73c990ea6a048d06
SHA1 hash:
613f80f1435842ab6b735c5c354f2b313c0d13a0
Link:
https://www.unpac.me/results/22b25e6f-3997-4f49-ac39-d2ebc12e55de/
SH256 hash:
28f9c5ac434acfa186955711a11607f7ccf1f9234de629cca1c1358163f6df26
MD5 hash:
d90e76a01752e5a7ed3b98cf902e5d93
SHA1 hash:
baf682067c3d84531781089a317cde57ca463b3a
Link:
https://www.unpac.me/results/22b25e6f-3997-4f49-ac39-d2ebc12e55de/
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/28f9c5ac434acfa186955711a11607f7ccf1f9234de629cca1c1358163f6df26

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.

Web download

GCleaner

Executable exe 28f9c5ac434acfa186955711a11607f7ccf1f9234de629cca1c1358163f6df26

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2509470/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/386844/

Comments