MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a214fb49064cc1516a7df9479a32e9bb8fe12996d44eef6d761f9a2e7d2b5091. 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: 18


Intelligence 18 IOCs YARA 20 File information Comments

SHA256 hash: a214fb49064cc1516a7df9479a32e9bb8fe12996d44eef6d761f9a2e7d2b5091
SHA3-384 hash: 1f5fc76b7936448ddfc5cf890f31e57438ab22f575947f978b903434ae1f00d477d8cc70c0162b7dd4675a2c6a87a732
SHA1 hash: 79812fe3fad0806f55818cd54abcca486c4c1cdf
MD5 hash: 1a29135fcd760e81c4737d8086f3f60e
humanhash: thirteen-georgia-sixteen-florida
File name:decode_f7d4825cf01b8b9d9ea7ca76eaee48d2091d43e26915ef9a158335157e833489
Download: download sample
Signature AsyncRAT
File size:64'512 bytes
First seen:2023-09-07 14:14:20 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 1536:7mImJ6tX2kNff4sKu+UYFeKGwoVd7b+APGruB4ZkSrPlTG9x:7m9J6tmkN7Ku+UYFeKId7b+rKB4ZkSdM
Threatray 5 similar samples on MalwareBazaar
TLSH T1AC53F8013BE98029F3BE8F7469F2618146F9F5AB2D12C55D1CC915DE0632B829A41BFF
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter jstrosch
Tags:AsyncRAT exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
302
Origin country :
US US
Vendor Threat Intelligence
Malware family:
asyncrat
ID:
1
File name:
decode_f7d4825cf01b8b9d9ea7ca76eaee48d2091d43e26915ef9a158335157e833489
Verdict:
Malicious activity
Analysis date:
2023-09-07 14:27:45 UTC
Tags:
rat asyncrat remote

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Using the Windows Management Instrumentation requests
Setting a global event handler for the keyboard
Query of malicious DNS domain
Sending a TCP request to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm asyncrat cmd keylogger lolbin packed rat reg replace schtasks
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.
Result
Threat name:
AsyncRAT
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AsyncRAT
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Backdoor.AsyncRAT
Status:
Malicious
First seen:
2023-09-07 14:15:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat botnet:9-septiembre rat spyware stealer
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Deletes itself
Reads user/profile data of web browsers
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
actualizaciondedatosgrupoaval.net:8887
Unpacked files
SH256 hash:
a214fb49064cc1516a7df9479a32e9bb8fe12996d44eef6d761f9a2e7d2b5091
MD5 hash:
1a29135fcd760e81c4737d8086f3f60e
SHA1 hash:
79812fe3fad0806f55818cd54abcca486c4c1cdf
Detections:
AsyncRAT win_asyncrat_w0
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:DebuggerCheck__RemoteAPI
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
Author:ditekSHen
Description:Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.
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_asyncrat
Description:detect AsyncRat in memory
Reference:https://github.com/NYAN-x-CAT/AsyncRAT-C-Sharp
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: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: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:Windows_Trojan_Asyncrat_11a11ba1
Author:Elastic Security
Rule name:win_asyncrat_j1
Author:Johannes Bader @viql
Description:detects AsyncRAT
Rule name:win_asyncrat_unobfuscated
Author:Matthew @ Embee_Research
Description:Detects strings present in unobfuscated AsyncRat Samples. Rule may also pick up on other Asyncrat-derived malware (Dcrat/venom etc)
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.

  
Delivery method
Other

Comments