MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b7c504732ae1530c48d6a3eab3cdc4ddaafd90f5d7fc31d08f1609cef755909e. 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



AsyncRAT


Vendor detections: 17


Intelligence 17 IOCs YARA 27 File information Comments

SHA256 hash: b7c504732ae1530c48d6a3eab3cdc4ddaafd90f5d7fc31d08f1609cef755909e
SHA3-384 hash: 24b49d2a16506c9656ef0cac6f763b6424339af455c38dcdeb8414baf9d193019e020defb07454a7f89ef3102f427aeb
SHA1 hash: 4358189c49771d93cef9666aa59eedd6220657be
MD5 hash: 1fd76187f54aa3c9bdbacae53bfcb7fc
humanhash: monkey-pizza-wisconsin-west
File name:Inzector_protected.exe.exe
Download: download sample
Signature AsyncRAT
File size:9'736'192 bytes
First seen:2025-05-18 13:10:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 9222d372923baed7aa9dfa28449a94ea (11 x AsyncRAT, 10 x RedLineStealer, 9 x NanoCore)
ssdeep 196608:lF/UhGcGbYRXzZzbGoTeb/osZVHGTmE+5AQZzqB+C93SHN9:4UcfRXVTQwp+5AQxmR2
Threatray 168 similar samples on MalwareBazaar
TLSH T162A6331524B78930C1AC70756E6AAFA45098B27799E442FBF149CA71DFE038DBC0F5AC
TrID 50.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
21.5% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
7.2% (.EXE) Win64 Executable (generic) (10522/11/4)
4.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.FON) Windows Font (5545/9/1)
Magika pebin
Reporter aachum
Tags:AsyncRAT exe


Avatar
iamaachum
https://www.youtube.com/watch?v=IuGkdMGTyM0 => https://www.upload.ee/files/18024496/Growpai_5.13_4172025.zip.html

AsyncRAT C2: lassi681-33233.portmap.io:33233

Intelligence


File Origin
# of uploads :
1
# of downloads :
508
Origin country :
ES ES
Vendor Threat Intelligence
Malware family:
asyncrat
ID:
1
File name:
Growpai_5.13_4172025.zip
Verdict:
Malicious activity
Analysis date:
2025-05-18 12:55:50 UTC
Tags:
arch-exec asyncrat

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
autorun proxy
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a file in the %temp% directory
Creating a process from a recently created file
Searching for analyzing tools
Creating a window
Creating a file
Using the Windows Management Instrumentation requests
Running batch commands
Creating a process with a hidden window
Connection attempt to an infection source
Launching a process
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Query of malicious DNS domain
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
microsoft_visual_cc packed packed packer_detected
Result
Threat name:
AsyncRAT, Binder HackTool
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
Hides threads from debuggers
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Protects its processes via BreakOnTermination flag
Query firmware table information (likely to detect VMs)
Sample uses string decryption to hide its real strings
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Tries to detect process monitoring tools (Task Manager, Process Explorer etc.)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AsyncRAT
Yara detected Binder HackTool
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1693350 Sample: Inzector_protected.exe.exe Startdate: 18/05/2025 Architecture: WINDOWS Score: 100 41 lassi681-33233.portmap.io 2->41 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Antivirus detection for dropped file 2->49 51 13 other signatures 2->51 10 Inzector_protected.exe.exe 3 2->10         started        13 CTF LOADER.EXE 2 2->13         started        signatures3 process4 file5 37 C:\Users\user\...\INZECTOR_PROTECTED.EXE, PE32+ 10->37 dropped 39 C:\Users\user\AppData\...\CTF LOADER.EXE, PE32 10->39 dropped 15 INZECTOR_PROTECTED.EXE 1 10->15         started        18 CTF LOADER.EXE 3 10->18         started        20 CTF LOADER.EXE 2 13->20         started        process6 signatures7 57 Antivirus detection for dropped file 15->57 59 Multi AV Scanner detection for dropped file 15->59 61 Query firmware table information (likely to detect VMs) 15->61 65 5 other signatures 15->65 22 conhost.exe 15->22         started        63 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 18->63 24 CTF LOADER.EXE 3 18->24         started        28 CTF LOADER.EXE 18->28         started        process8 dnsIp9 43 lassi681-33233.portmap.io 193.161.193.99, 33233, 49721, 49723 BITREE-ASRU Russian Federation 24->43 53 Protects its processes via BreakOnTermination flag 24->53 30 cmd.exe 1 24->30         started        signatures10 process11 signatures12 55 Uses schtasks.exe or at.exe to add and modify task schedules 30->55 33 conhost.exe 30->33         started        35 schtasks.exe 1 30->35         started        process13
Threat name:
Win32.Ransomware.DarkyLock
Status:
Malicious
First seen:
2025-05-18 13:10:23 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
24 of 24 (100.00%)
Threat level:
  5/5
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat botnet:default discovery rat
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Checks computer location settings
Executes dropped EXE
AsyncRat
Asyncrat family
Malware Config
C2 Extraction:
lassi681-33233.portmap.io:33233
Unpacked files
SH256 hash:
b7c504732ae1530c48d6a3eab3cdc4ddaafd90f5d7fc31d08f1609cef755909e
MD5 hash:
1fd76187f54aa3c9bdbacae53bfcb7fc
SHA1 hash:
4358189c49771d93cef9666aa59eedd6220657be
SH256 hash:
5d2fbf8b1b7e22192b337785d325043c9c60c3b30aabe0176a8768a4b6bd8717
MD5 hash:
a9f17b140ef918c965f638fce195b1b5
SHA1 hash:
83ee1f7437da927767ea9e325209f885fcd3a9bb
Detections:
win_asyncrat_w0 AsyncRAT asyncrat win_asyncrat_bytecodes INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
SH256 hash:
d578146062b103603a2aa05153a6783bd27338a0e908e2036aaac2b212fc191f
MD5 hash:
0645d2fff5483d69c3f88ec45da3ad17
SHA1 hash:
f4b5a619a5b638f95f2b19d727a71043055773d1
Detections:
MAL_NET_LimeCrypter_RunPE_Jan24
Please note that we are no longer able to provide a coverage score for Virus Total.

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:AsyncRat
Author:kevoreilly, JPCERT/CC Incident Response Group
Description:AsyncRat Payload
Rule name:asyncrat_kingrat
Author:jeFF0Falltrades
Rule name:Check_OutputDebugStringA_iat
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__RemoteAPI
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_EXE_Packed_NyanXCat_CSharpLoader
Author:ditekSHen
Description:Detects .NET executables utilizing NyanX-CAT C# Loader
Rule name:INDICATOR_EXE_Packed_Themida
Author:ditekSHen
Description:Detects executables packed with Themida
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:malware_asyncrat
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:MALWARE_Win_CelestyBinderLoader
Author:ditekSHen
Description:Detects Celesty Binder loader
Rule name:MAL_AsnycRAT
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:MAL_AsyncRAT_Config_Decryption
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:Mal_WIN_AsyncRat_RAT_PE
Author:Phatcharadol Thangplub
Description:Use to detect AsyncRAT implant.
Rule name:msil_suspicious_use_of_strreverse
Author:dr4k0nia
Description:Detects mixed use of Microsoft.CSharp and VisualBasic to use StrReverse
Rule name:Multifamily_RAT_Detection
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:Njrat
Author:botherder https://github.com/botherder
Description:Njrat
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_DOTNET_PE_List_AV
Author:SECUINFRA Falcon Team
Description:Detecs .NET Binary that lists installed AVs
Rule name:SUSP_Reverse_Run_Key
Author:SECUINFRA Falcon Team
Description:Detects a Reversed Run Key
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:win_asyncrat_bytecodes
Author:Matthew @ Embee_Research
Description:Detects bytecodes present in unobfuscated AsyncRat Samples. Rule may also pick up on other Asyncrat-derived malware (Dcrat/venom etc)
Rule name:win_asyncrat_j1
Author:Johannes Bader @viql
Description:detects AsyncRAT
Rule name:win_asyncrat_w0
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

AsyncRAT

Executable exe b7c504732ae1530c48d6a3eab3cdc4ddaafd90f5d7fc31d08f1609cef755909e

(this sample)

  
Delivery method
Distributed via web download

BLint


The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
Reviews
IDCapabilitiesEvidence
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteA
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineA
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileA
KERNEL32.dll::GetWindowsDirectoryA
KERNEL32.dll::GetTempPathA

Comments