MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3d77f673242c2bd51984ec89dfda2ec49ca18d4303c7a2e8185962258c06d83. 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: b3d77f673242c2bd51984ec89dfda2ec49ca18d4303c7a2e8185962258c06d83
SHA3-384 hash: 8a973ff303f202e1d8f87b85d6f3e5c99b19f6f585e1b02559e2d1613e572f2036e913e8414134f6f99f79461bff6c1c
SHA1 hash: 2175e4d188e6fc351d681f2bc44df5249f8ec296
MD5 hash: 358f192bb5b65d268707538d74320557
humanhash: kitten-idaho-blossom-single
File name:358f192bb5b65d268707538d74320557.exe
Download: download sample
Signature GCleaner
Create hunting rule
File size:2'734'038 bytes
First seen:2023-02-19 17:11:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 884310b1928934402ea6fec1dbd3cf5e (3'725 x GCleaner, 3'494 x Socks5Systemz, 262 x RaccoonStealer)
ssdeep 49152:Z2V7bWPYdrVDLbYQ26js7NObwMu/3m3L5eZCGQ+UxquDYwoYAP:MVH1FYgjfu/6L5xr+UQuDAP
Threatray 8'461 similar samples on MalwareBazaar
TLSH T157C5331EDA4A50B7F8610D743FB8816C9F60B9C019BD422572ADE88A07BFF9DE444376
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 abuse_ch
Tags:exe gcleaner

Intelligence

File Origin
# of uploads :
1
# of downloads :
239
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
amadey
Create hunting rule
ID:
1
File name:
358f192bb5b65d268707538d74320557.exe
Verdict:
Malicious activity
Analysis date:
2023-02-19 17:22:28 UTC
Tags:
installer trojan amadey loader gcleaner stealer rat redline opendir cryptbot
Link:
https://app.any.run/tasks/0fd6ad5e-3e88-401c-b76d-e8ae02ff4057

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/368251/
Detection(s):
SecuriteInfo.com.PSW.Generic8.BZFQ.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
Sending an HTTP GET request
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
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/71739/overview
Behaviour
MalwareBazaar
CheckCmdLine
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware installer overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63f2582ae6a5b4588ca1092a/reports/4d1d9c10-2682-473b-a845-cdc3da639bfe/overview
Verdict:
Malicious
Labled as:
HEUR/AGEN.1251208
Link:
https://www.hybrid-analysis.com/sample/b3d77f673242c2bd51984ec89dfda2ec49ca18d4303c7a2e8185962258c06d83
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9d402c8a-41c8-4fd5-ace9-1325015abb8b
Result
Threat name:
Nymaim
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1178857
Signature
Antivirus / Scanner detection for submitted sample
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
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: 811682 Sample: We5zBVntYy.exe Startdate: 19/02/2023 Architecture: WINDOWS Score: 100 46 45.12.253.98 CMCSUS Germany 2->46 48 Snort IDS alert for network traffic 2->48 50 Antivirus / Scanner detection for submitted sample 2->50 52 Multi AV Scanner detection for dropped file 2->52 54 6 other signatures 2->54 10 We5zBVntYy.exe 2 2->10         started        signatures3 process4 file5 30 C:\Users\user\AppData\Local\...\is-LDKV0.tmp, PE32 10->30 dropped 13 is-LDKV0.tmp 15 25 10->13         started        process6 file7 32 C:\Users\user\AppData\Local\...\_setup64.tmp, PE32+ 13->32 dropped 34 C:\Users\user\AppData\Local\...\_isdecmp.dll, PE32 13->34 dropped 36 C:\Users\user\AppData\Local\...\_iscrypt.dll, PE32 13->36 dropped 38 7 other files (5 malicious) 13->38 dropped 16 FRec219.exe 24 13->16         started        process8 dnsIp9 40 45.12.253.56, 49683, 80 CMCSUS Germany 16->40 42 45.12.253.72, 49684, 80 CMCSUS Germany 16->42 44 45.12.253.75, 49685, 80 CMCSUS Germany 16->44 28 C:\Users\user\AppData\...\mKtIvecAl6A.exe, PE32 16->28 dropped 20 cmd.exe 1 16->20         started        22 mKtIvecAl6A.exe 16->22         started        file10 process11 process12 24 taskkill.exe 1 20->24         started        26 conhost.exe 20->26         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b3d77f673242c2bd51984ec89dfda2ec49ca18d4303c7a2e8185962258c06d83/
Threat name:
Win32.Downloader.GCleaner
Create hunting rule
Status:
Malicious
First seen:
2023-02-19 17:12:18 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
16 of 25 (64.00%)
Threat level:
  3/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wplx6zzsilbl2umyj3ej37nc5re4ugguga6hulubqwlcewganwbq._file
Verdict:
malicious
Similar samples:
0deed228059aa39e649697b6ca7692b3b149f6dc399cfa9979e9b8af696ed662
GCleaner
482176873e3dadb7311a11763d6c0e5b21ab520d0831970439dfb01b31e9f37d
GCleaner
5a9bdab39a6dd1a3dee8624eb4619d11b24d9361936de2da9d67cd799b68fd5c
GCleaner
8371cb4389261c3c87f025de67fb741358de3ae43c4ed7cef207e314af8940d0
GCleaner
8e8881dcaaa620bedfb82624275b62095a1aa9cd94ce0cd4b9e35ea7403ccd42
GCleaner
aa0a425c0ec42dfceaa7d6cabc4af201eae056f2898acd36963b50be60b92df5
GCleaner
b458aef254aabef744e90c357445615013b7a90e5fdfe9ef08825f2131d9c158
GCleaner
d419b7b5d7d0b7f7170b3dfd79f2099ca213e28e4caa06e45633e9e64e857d5b
GCleaner
dd7256ae55124fa928ab7ca5d6de64cebe3b3e04d09f91d98b1a0444c4c0d05a
GCleaner
f89bf05bde8b84c732b41bf7730e2d4e86d5445699e34fa6200c89c984abd566
GCleaner
+ 8'451 additional samples on MalwareBazaar
Result
Malware family:
gcleaner
Create hunting rule
Score:
  10/10
Tags:
family:gcleaner discovery loader
Link:
https://tria.ge/reports/230219-vqaafagb42/
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:
e9e1648dcd766eea1e41ebe5501566a713f1282f9705db046960ca324c63d9b0
MD5 hash:
81497267a31f8eef616239cbfea39b65
SHA1 hash:
57e132b3928de4eb49962a0b6dd7045168a30072
Detections:
win_nymaim_g0
Create hunting rule
Nymaim
Create hunting rule
win_gcleaner_auto
Create hunting rule
Link:
https://www.unpac.me/results/c59c7714-9f96-4bc3-9ee4-111162f45d54/
SH256 hash:
c724c767c98742b9fa1cecb249b3adfb154e8cd3a8c24a8dcc09d5fab131dba4
MD5 hash:
bb104b85dbce15cb7548266d4e877505
SHA1 hash:
25e6d3dd307518d1c1e51f7be994230c8a22bb09
Link:
https://www.unpac.me/results/c59c7714-9f96-4bc3-9ee4-111162f45d54/
SH256 hash:
4ed41644a50d3c1a3e9b1de3ca5e07d89cb75da3072bc8699e90a675b81053b2
MD5 hash:
c3d96fa7b94db783b52f0b81d6154547
SHA1 hash:
02f47432c2f05257fdefa9758f488ae9c41c4cb1
Link:
https://www.unpac.me/results/c59c7714-9f96-4bc3-9ee4-111162f45d54/
SH256 hash:
b3d77f673242c2bd51984ec89dfda2ec49ca18d4303c7a2e8185962258c06d83
MD5 hash:
358f192bb5b65d268707538d74320557
SHA1 hash:
2175e4d188e6fc351d681f2bc44df5249f8ec296
Link:
https://www.unpac.me/results/c59c7714-9f96-4bc3-9ee4-111162f45d54/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b3d77f673242/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b3d77f673242c2bd51984ec89dfda2ec49ca18d4303c7a2e8185962258c06d83

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 b3d77f673242c2bd51984ec89dfda2ec49ca18d4303c7a2e8185962258c06d83

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2509470/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/368251/

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