MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8aa756861fa362d33327021ba0d875c6b1475c53f2808d16f817be395d50bddc. 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: 16


Intelligence 16 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8aa756861fa362d33327021ba0d875c6b1475c53f2808d16f817be395d50bddc
SHA3-384 hash: 34148ea23bfcd9f26aa19233d61ec31771ffc2e4a2c3b2aeae107b9bb89682f8bfeadba7e3344cf495e10018ac1c1f62
SHA1 hash: b22af4f34b007d39f141c0e901bcb2e4ea697ebc
MD5 hash: 85ea457269e0c0bb8b0c31537b13d508
humanhash: virginia-single-bacon-alpha
File name:file
Download: download sample
Signature GCleaner
Create hunting rule
File size:2'536'228 bytes
First seen:2022-10-21 23:15:42 UTC
Last seen:2022-10-21 23:44:37 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:Z2gMa94p35P7vBoPJ1lAs5MugFMZ9qTe+P+esYCAG9UPkRALtNuD+uA5hq:MdHFoPJks5MfXe+WesJcLt++NDq
TLSH T1D9C53324EF061CB5E50495B56CB9DA248A363F3261387D67F2AC97DC0E1E49E8106BB3
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 :
323
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2022-10-21 23:18:33 UTC
Tags:
installer
Link:
https://app.any.run/tasks/7f1f2937-0206-4fd8-9f8e-f756ae0060d6

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/322434/
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
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 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/44240/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/63532835455bf4ac5c7172bf/reports/4767f361-3964-475f-9a6c-ff947274736e/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/3b8d6b59-47de-4527-88cd-8e3e7e3a4466
Result
Threat name:
Nymaim
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1095213
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: 727854 Sample: file.exe Startdate: 22/10/2022 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-A2AN4.tmp, PE32 10->31 dropped 13 is-A2AN4.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 25 13->16         started        process8 dnsIp9 41 107.182.129.235, 49697, 80 META-ASUS Reserved 16->41 43 171.22.30.106, 49698, 80 CMCSUS Germany 16->43 45 45.139.105.171, 49696, 80 CMCSUS Italy 16->45 29 C:\Users\user\AppData\Roaming\...\OBZfP.exe, PE32 16->29 dropped 20 OBZfP.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/8aa756861fa362d33327021ba0d875c6b1475c53f2808d16f817be395d50bddc/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2022-10-22 00:18:37 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=rktvnbq7unrngmzhain2bwdvy2yuoxct6kai2fxyc67dsxkqxxoa._file
Verdict:
malicious
Result
Malware family:
nymaim
Create hunting rule
Score:
  10/10
Tags:
family:nymaim discovery trojan
Link:
https://tria.ge/reports/221021-28414ahfdr/
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
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/dae010a6-0ae3-44d4-a824-7d18975837c8
Unpacked files
SH256 hash:
1ea1171477b90589e50d6cbbeea91983d201315ad335ca67039037c94a654622
MD5 hash:
50eff40fadfa9c2e04dd3b270fcd9c2c
SHA1 hash:
e38f922d85aff7d6f5d0e9579b3744f3697b48d2
Detections:
win_nymaim_g0
Create hunting rule
win_gcleaner_auto
Create hunting rule
Link:
https://www.unpac.me/results/c44a122d-2b9d-4b3c-a8b1-df536550ccdd/
SH256 hash:
f14b79b4608389aed38d22dd5cf2739c739e09272b88b052289c0c2b0740e919
MD5 hash:
6420f85a47b5972c2431965ccf823d30
SHA1 hash:
a06cd03c42638cea6722cc64fb72cc3b2e32503c
Link:
https://www.unpac.me/results/c44a122d-2b9d-4b3c-a8b1-df536550ccdd/
SH256 hash:
27f508900b78ded59a69a923f290bf8f40fb9e63d748f7af3fa70f5d53d55932
MD5 hash:
9d9a921bdca24b31e2b2f527fe53942e
SHA1 hash:
968c1f251b87feb75c67e93844096099010fd606
Link:
https://www.unpac.me/results/c44a122d-2b9d-4b3c-a8b1-df536550ccdd/
SH256 hash:
8aa756861fa362d33327021ba0d875c6b1475c53f2808d16f817be395d50bddc
MD5 hash:
85ea457269e0c0bb8b0c31537b13d508
SHA1 hash:
b22af4f34b007d39f141c0e901bcb2e4ea697ebc
Link:
https://www.unpac.me/results/c44a122d-2b9d-4b3c-a8b1-df536550ccdd/
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/8aa756861fa362d33327021ba0d875c6b1475c53f2808d16f817be395d50bddc

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
Cape
Cape
https://www.capesandbox.com/analysis/322434/
  
URLhaus
https://urlhaus.abuse.ch/url/2276314/

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