MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b77f5a3d24032ad47becd175fa752d6cdb3ba4263be222614388a1d6bab3e1a9. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b77f5a3d24032ad47becd175fa752d6cdb3ba4263be222614388a1d6bab3e1a9
SHA3-384 hash: c7bf6bf23c464a5c387bfc04271ae644b36a13755d72b5b152541b3602a3a495171436d93557959a266e5ac627b99a8d
SHA1 hash: 9e2d908d45208725d76e49e8e1794895c0e77ec0
MD5 hash: 1790fd9664b53fc38820f3c2f3257017
humanhash: lamp-yellow-wisconsin-yellow
File name:file
Download: download sample
Signature GCleaner
Create hunting rule
File size:2'528'915 bytes
First seen:2022-10-24 18:16:02 UTC
Last seen:2022-10-24 18:44:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 884310b1928934402ea6fec1dbd3cf5e (3'725 x GCleaner, 3'446 x Socks5Systemz, 262 x RaccoonStealer)
ssdeep 49152:Z2Y9sgI3SERdGUS6dKLyxt21TSqYVQbpgx2pQhS/9osleA5hq:MY6g9EiUSFLNGqYg2xxxsl9Dq
TLSH T1EDC5330196BDC531F822AAF0DE3ADD74AA0373211A3D9C4EB05C65CD4F6369B90C6BD9
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 :
13
# of downloads :
231
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
ficker
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2022-10-24 18:17:16 UTC
Tags:
installer evasion loader trojan ficker stealer
Link:
https://app.any.run/tasks/8561fd58-4cf0-45b1-a3f2-536947df2ddb

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/323590/
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
Moving a file to the %AppData% subdirectory
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/45106/overview
Behaviour
MalwareBazaar
CheckCmdLine
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/db6a47a6-91af-449d-8183-1b6637d38e55
Result
Threat name:
Nymaim
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1096839
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 dropped file
Yara detected Nymaim
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 729484 Sample: file.exe Startdate: 24/10/2022 Architecture: WINDOWS Score: 88 47 45.139.105.1 CMCSUS Italy 2->47 49 85.31.46.167 CLOUDCOMPUTINGDE Germany 2->49 51 Antivirus detection for URL or domain 2->51 53 Detected unpacking (changes PE section rights) 2->53 55 Detected unpacking (overwrites its own PE header) 2->55 57 3 other signatures 2->57 10 file.exe 2 2->10         started        signatures3 process4 file5 31 C:\Users\user\AppData\Local\...\is-3P3CD.tmp, PE32 10->31 dropped 13 is-3P3CD.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 etsearcher58.exe 25 13->16         started        process8 dnsIp9 41 107.182.129.235, 49701, 80 META-ASUS Reserved 16->41 43 171.22.30.106, 49702, 80 CMCSUS Germany 16->43 45 45.139.105.171, 49698, 80 CMCSUS Italy 16->45 29 C:\Users\user\AppData\...\T66rfboucgjCY.exe, PE32 16->29 dropped 20 T66rfboucgjCY.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/b77f5a3d24032ad47becd175fa752d6cdb3ba4263be222614388a1d6bab3e1a9/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2022-10-24 19:14:16 UTC
File Type:
PE (Exe)
Extracted files:
14
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w57vupjeamvni67m2f27u5jnntntxjbghprceykdrcq5novt4guq._file
Verdict:
malicious
Result
Malware family:
nymaim
Create hunting rule
Score:
  10/10
Tags:
family:nymaim discovery trojan
Link:
https://tria.ge/reports/221024-wwf6lsaad4/
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
Unpacked files
SH256 hash:
36d86df18803e36e0c1119269b992d53249550f7449e4e43cf87aa5e64ccf7ff
MD5 hash:
c3bcbf77705e1587c9b2a37c30dd2ae5
SHA1 hash:
f22169d3e65684cf9aeec6619b2cdbf09d1f523a
Detections:
win_nymaim_g0
Create hunting rule
win_gcleaner_auto
Create hunting rule
Link:
https://www.unpac.me/results/a2f156c5-92d5-47fd-973f-571a55df34d6/
SH256 hash:
f1ab6f7ffa6d36511461eeb7cbc3fa8d32131793bec660536de8a162a719fb80
MD5 hash:
375365c8a7962080756390631058bf55
SHA1 hash:
e2eb6ac4f632dd90eaeb86750f8cb02f7e2833a5
Link:
https://www.unpac.me/results/a2f156c5-92d5-47fd-973f-571a55df34d6/
SH256 hash:
b77f5a3d24032ad47becd175fa752d6cdb3ba4263be222614388a1d6bab3e1a9
MD5 hash:
1790fd9664b53fc38820f3c2f3257017
SHA1 hash:
9e2d908d45208725d76e49e8e1794895c0e77ec0
Link:
https://www.unpac.me/results/a2f156c5-92d5-47fd-973f-571a55df34d6/
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/b77f5a3d24032ad47becd175fa752d6cdb3ba4263be222614388a1d6bab3e1a9

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: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/323590/
  
URLhaus
https://urlhaus.abuse.ch/url/2276314/

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