MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 950a872a54fdcc104d9c22ae8510b0e4c3ee0b9a53c8c03c11c8f3dc852686e1. 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: 14


Intelligence 14 IOCs YARA 1 File information Comments

SHA256 hash: 950a872a54fdcc104d9c22ae8510b0e4c3ee0b9a53c8c03c11c8f3dc852686e1
SHA3-384 hash: 1b71b5cff51641cf6a7acc17d95d6dd894fe0561ba50b16cc4d392c428486b0195f5fe0f7750c3447e7fff6220365ed6
SHA1 hash: fae622f7d08ba627afd6db3c6b493b8a5c4cf06b
MD5 hash: 584d86d93eb7c8ba9522b4c22c9bfa89
humanhash: five-nineteen-tennessee-delta
File name:sostener1.vbs
Download: download sample
Signature AsyncRAT
File size:2'208'490 bytes
First seen:2025-09-04 05:34:29 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 192:U7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7fS:wFYVQHdq
TLSH T1ADA54A0F0B26E32C65684B1237B290F3556A3F4D0758BEA7CE5F40A8587CE734B61E99
TrID 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1)
33.3% (.MP3) MP3 audio (1000/1)
Magika fortran
Reporter abuse_ch
Tags:AsyncRAT vbs

Intelligence


File Origin
# of uploads :
1
# of downloads :
71
Origin country :
SE SE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
92.5%
Tags:
obfuscate xtreme shell
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 evasive guloader obfuscated powershell
Verdict:
Malicious
File Type:
vbs
First seen:
2025-09-03T20:26:00Z UTC
Last seen:
2025-09-03T20:26:00Z UTC
Hits:
~10
Result
Threat name:
AsyncRAT, Dacic, DcRat
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Encrypted powershell cmdline option found
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Potential dropper URLs found in powershell memory
Sample uses string decryption to hide its real strings
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Potential PowerShell Command Line Obfuscation
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
VBScript performs obfuscated calls to suspicious functions
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected AsyncRAT
Yara detected Dacic
Yara detected DcRat
Yara detected Generic Downloader
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1770892 Sample: sostener1.vbs Startdate: 04/09/2025 Architecture: WINDOWS Score: 100 35 enviosenvios8899.duckdns.org 2->35 37 uc5bf740b960a79b583f379da8a2.dl.dropboxusercontent.com 2->37 39 6 other IPs or domains 2->39 45 Suricata IDS alerts for network traffic 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 53 16 other signatures 2->53 10 wscript.exe 1 2->10         started        signatures3 51 Uses dynamic DNS services 35->51 process4 signatures5 63 VBScript performs obfuscated calls to suspicious functions 10->63 65 Suspicious powershell command line found 10->65 67 Wscript starts Powershell (via cmd or directly) 10->67 69 2 other signatures 10->69 13 powershell.exe 7 10->13         started        process6 signatures7 71 Suspicious powershell command line found 13->71 73 Encrypted powershell cmdline option found 13->73 75 Bypasses PowerShell execution policy 13->75 77 2 other signatures 13->77 16 powershell.exe 14 17 13->16         started        21 conhost.exe 13->21         started        process8 dnsIp9 31 edge-block-www-env.dropbox-dns.com 162.125.4.15, 443, 49719, 49721 DROPBOXUS United States 16->31 33 www-env.dropbox-dns.com 162.125.4.18, 443, 49718, 49720 DROPBOXUS United States 16->33 29 C:\Users\user\AppData\Local\Temp\veeoZ.ps1, Unicode 16->29 dropped 43 Potential dropper URLs found in powershell memory 16->43 23 powershell.exe 11 16->23         started        file10 signatures11 process12 signatures13 55 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 23->55 57 Writes to foreign memory regions 23->57 59 Potential dropper URLs found in powershell memory 23->59 61 Injects a PE file into a foreign processes 23->61 26 MSBuild.exe 2 23->26         started        process14 dnsIp15 41 enviosenvios8899.duckdns.org 192.169.69.26, 1111, 49726, 49727 WOWUS United States 26->41
Verdict:
Malware
YARA:
2 match(es)
Tags:
DeObfuscated Obfuscated PowerShell T1059.005 VBScript WScript.Shell
Threat name:
Win32.Trojan.Egairtigado
Status:
Malicious
First seen:
2025-09-04 05:35:48 UTC
File Type:
Text (VBS)
AV detection:
8 of 24 (33.33%)
Threat level:
  5/5
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat botnet:llegan1111 discovery execution rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Command and Scripting Interpreter: PowerShell
Checks computer location settings
Badlisted process makes network request
AsyncRat
Asyncrat family
Malware Config
C2 Extraction:
enviosenvios8899.duckdns.org:1111
Dropper Extraction:
https://www.dropbox.com/scl/fi/wodfuzrbz0pc7kkc3yl2u/dll.txt?rlkey=erzuh647o5ctzdnc0j1sgw83v&st=2st75vf5&dl=1
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:Sus_CMD_Powershell_Usage
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

File information


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

Web download

AsyncRAT

Visual Basic Script (vbs) vbs 950a872a54fdcc104d9c22ae8510b0e4c3ee0b9a53c8c03c11c8f3dc852686e1

(this sample)

  
Delivery method
Distributed via web download

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