MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 83a9ff4653d0cfb9634f1d06fd2fc698e5f554c419cc35698b7575252cb43d67. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 83a9ff4653d0cfb9634f1d06fd2fc698e5f554c419cc35698b7575252cb43d67
SHA3-384 hash: 2f24400ff50c9507e721a9d5d05baf571cd8b01567fb435fe95b47e78ac73182fd238c8e891188edf5a594b8950f5c19
SHA1 hash: 2cba70e8312c4274d5a13d45215e86ac5d391a99
MD5 hash: d56fd85ebe023913c75fd5e19efaf7eb
humanhash: iowa-robin-arkansas-juliet
File name:file
Download: download sample
Signature GCleaner
Create hunting rule
File size:2'389'669 bytes
First seen:2022-10-22 02:00:09 UTC
Last seen:2022-10-22 02:29:10 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:Z2UKGwCR2LzVES1EK1aYJQHRJ8XKFYAGRUyErKl565eZA5hq:MU/YmS1VmYKFYAG+5PDq
TLSH T1D0B533838B31D432C07085B52E3BC72E16F24A511D7D828CF1FC835D5EA6E869A657FA
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 :
15
# of downloads :
260
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
ficker
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2022-10-22 02:02:34 UTC
Tags:
installer loader evasion trojan ficker stealer opendir vidar
Link:
https://app.any.run/tasks/e58f9496-d008-43de-ab0c-13908e33252b

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/322456/
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 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/44260/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/63534edefdf6478a15afb825/reports/111ce929-5c51-4478-b141-3652c55f0444/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/cba71ef0-216d-46dc-af61-29d147d0f8f8
Result
Threat name:
Nymaim
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1095238
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: 727879 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-PMDUD.tmp, PE32 10->31 dropped 13 is-PMDUD.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 22 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\...\z4JVHD.exe, PE32 16->29 dropped 20 z4JVHD.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/83a9ff4653d0cfb9634f1d06fd2fc698e5f554c419cc35698b7575252cb43d67/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2022-10-22 02:16:36 UTC
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qou76rst2dh3sy2pdudp2l6gtds7kvgedhgdk2mlov2sklfuhvtq._file
Result
Malware family:
nymaim
Create hunting rule
Score:
  10/10
Tags:
family:nymaim discovery trojan
Link:
https://tria.ge/reports/221022-cfjr1sabdk/
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/255b8b6f-78b7-4c75-b35b-36fa6ae2b8b2
Unpacked files
SH256 hash:
dc0066f44348e654b6e63626914602bccf9c6a160ddb78eeb04940994870c1a7
MD5 hash:
49c98774273c80f063b5022a44d0ac2d
SHA1 hash:
8f788ddfc52b00e975d3af53e8feaf5d0f9ac66a
Detections:
win_nymaim_g0
Create hunting rule
win_gcleaner_auto
Create hunting rule
Link:
https://www.unpac.me/results/f9c5d9b0-a9ea-42de-958b-40cc4597b548/
SH256 hash:
db8c7811e55ef9e964c683b06f753428fbc51177be18923818d469a71674b738
MD5 hash:
f04bc31fb6e6554eb63670b749395135
SHA1 hash:
fa87a1bc06bfa393e2e24f84644e8324f66335a4
Link:
https://www.unpac.me/results/f9c5d9b0-a9ea-42de-958b-40cc4597b548/
SH256 hash:
60fe58b41933219074c3f935c221ef3ffd2e76e00ef699a6d1703dfb49b7c587
MD5 hash:
e80d0a367c151031867072cc5a690a76
SHA1 hash:
9cc7492a5046b143c95a498804e6a915cca78399
Link:
https://www.unpac.me/results/f9c5d9b0-a9ea-42de-958b-40cc4597b548/
SH256 hash:
83a9ff4653d0cfb9634f1d06fd2fc698e5f554c419cc35698b7575252cb43d67
MD5 hash:
d56fd85ebe023913c75fd5e19efaf7eb
SHA1 hash:
2cba70e8312c4274d5a13d45215e86ac5d391a99
Link:
https://www.unpac.me/results/f9c5d9b0-a9ea-42de-958b-40cc4597b548/
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/83a9ff4653d0cfb9634f1d06fd2fc698e5f554c419cc35698b7575252cb43d67

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/322456/
  
URLhaus
https://urlhaus.abuse.ch/url/2276314/

Comments