MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b591ed5c8866a66d8ac69e4cc8d9acf626fb0ae876176fcbcdb58a416fade358. 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: b591ed5c8866a66d8ac69e4cc8d9acf626fb0ae876176fcbcdb58a416fade358
SHA3-384 hash: 2efc0e0b6d675839bafbdf66fef247ba07c9cd02230d1a56098900c0a64cc42b5b901b3d3e6b767c11b76284db357f0a
SHA1 hash: 5d6ab478f774f3124457c80ff3ca129f766e4a88
MD5 hash: 277c830383f55b1280b5730f4d15182d
humanhash: pizza-stream-wyoming-skylark
File name:file
Download: download sample
Signature GCleaner
Create hunting rule
File size:2'622'660 bytes
First seen:2022-10-30 23:32:23 UTC
Last seen:2022-10-30 23:59:04 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 884310b1928934402ea6fec1dbd3cf5e (3'725 x GCleaner, 3'460 x Socks5Systemz, 262 x RaccoonStealer)
ssdeep 49152:Z2IPj6wyMTPErbxKrtXfPOI/iOkv4HX+SCcFvAyJ+9HBzF1dzYsJA5hq:MIPj6wyUPErdKrtnOI/iOkqX+GNAZF7X
TLSH T165C53354CBFA8A74F140CDB2DD5FA721C866B6940C705897AA3E4B8A0F2A4B1C50D7DF
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 :
386
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
ficker
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2022-10-30 23:33:33 UTC
Tags:
installer loader evasion trojan ficker stealer opendir vidar
Link:
https://app.any.run/tasks/acd355dc-c2b4-4851-87bf-29fd82ace32e

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/326216/
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
Searching for synchronization primitives
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Creating a file in the system32 subdirectories
Sending a custom TCP request
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 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/46891/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/635f09afce1f43143c2a1843/reports/8c38ab93-10e7-40c7-ae8a-2af741288610/overview
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:
Unknown
Link:
https://analyze.intezer.com/analyses/5b29b1ab-e1d2-423e-8e65-8eeb412972c1
Result
Threat name:
Nymaim
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1101372
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: 734033 Sample: file.exe Startdate: 31/10/2022 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-OED4T.tmp, PE32 10->31 dropped 13 is-OED4T.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 ffsearcher64.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\...\OkFOL7brNy0n6.exe, PE32 16->29 dropped 20 OkFOL7brNy0n6.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/b591ed5c8866a66d8ac69e4cc8d9acf626fb0ae876176fcbcdb58a416fade358/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2022-10-30 23:33:10 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=wwi62xeim2tg3cwgtzgmrwnm6ytpwcxioylw7s6nwwfec35n4nma._file
Verdict:
malicious
Result
Malware family:
nymaim
Create hunting rule
Score:
  10/10
Tags:
family:nymaim discovery trojan
Link:
https://tria.ge/reports/221030-3jtz9segd9/
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:
bb448a7da7c7282102fee2b8ba447500d87ad87c0048d6455c8ca89d87ab7920
MD5 hash:
3b79beb2e1d01b227fb0ceadc4d19a88
SHA1 hash:
0601b3ea80f75c793fa4fb1f60a37d41c66547b7
Detections:
win_nymaim_g0
Create hunting rule
Nymaim
Create hunting rule
win_gcleaner_auto
Create hunting rule
Link:
https://www.unpac.me/results/ef554b98-557a-484d-ab92-8598599d757f/
SH256 hash:
323f555793af5bb8c5cae0e655fa2104c638c9bea480f52261ee2e0501476561
MD5 hash:
a4a65b014344fcce064412bc59ff6881
SHA1 hash:
9c35f49f2c6b11fe35d5428e5cef7cc4409b453c
Link:
https://www.unpac.me/results/ef554b98-557a-484d-ab92-8598599d757f/
SH256 hash:
6bfeb607c219b375adbd28ee86c492cf74386a1af72bfbe4dea4f62a43dd853c
MD5 hash:
c79e05214b9ca98930c4fcffe01b4891
SHA1 hash:
7921af19bc14ff8ea16d20ad221c01abfab14679
Link:
https://www.unpac.me/results/ef554b98-557a-484d-ab92-8598599d757f/
SH256 hash:
b591ed5c8866a66d8ac69e4cc8d9acf626fb0ae876176fcbcdb58a416fade358
MD5 hash:
277c830383f55b1280b5730f4d15182d
SHA1 hash:
5d6ab478f774f3124457c80ff3ca129f766e4a88
Link:
https://www.unpac.me/results/ef554b98-557a-484d-ab92-8598599d757f/
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/b591ed5c8866a66d8ac69e4cc8d9acf626fb0ae876176fcbcdb58a416fade358

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/326216/

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