MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a517730f91314aaaf2e7843327e8a1d7c09b8e542449152a2725f2d4361b8bb3. 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: 8


Intelligence 8 IOCs YARA 1 File information Comments
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SHA256 hash: a517730f91314aaaf2e7843327e8a1d7c09b8e542449152a2725f2d4361b8bb3
SHA3-384 hash: 031803884886c6755398f856050b7b688065087a8c4ea490d7f4159e4acca3cf10b43e13698e51aa39e0ddbc9a45da2c
SHA1 hash: 9b65363cecd8bec73dcce9501f04a62feeeab228
MD5 hash: 3e338fb0311a9808b97c27f9427ba6fe
humanhash: missouri-bulldog-stairway-delaware
File name:Invoice-ID-(882451).vbs
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:243 bytes
First seen:2021-02-27 18:16:25 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 6:YuAuPRizzNkRkizGY7ELHxNKFYvAbxrUU4oKkfXDLyM:YuvR8617ELyYvANruoKk7Lf
Threatray 638 similar samples on MalwareBazaar
Reporter abuse_ch
Tags:AsyncRAT vbs


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: p-impout001fwd.msg.pkvw.co.charter.net
Sending IP: 47.43.26.166
From: Spectrum <laurie22@tampabay.rr.com>
Subject: Your Spectrum Statement is Available now.
Attachment: Invoice-ID-882451.iso (contains "Invoice-ID-(882451).vbs")

Intelligence

File Origin
# of uploads :
1
# of downloads :
350
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/119696/
Detection(s):
SecuriteInfo.com.Scr.Malcodegen.27379.2934.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a process with a hidden window
DNS request
Sending an HTTP GET request
Sending a custom TCP request
Creating a file
Sending a UDP request
Creating a process from a recently created file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Verdict:
SUSPICIOUS
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
phis.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/620632
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
Sigma detected: Drops script at startup location
Sigma detected: MSHTA Spawning Windows Shell
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
VBScript performs obfuscated calls to suspicious functions
Writes to foreign memory regions
Yara detected AsyncRAT
Yara detected obfuscated html page
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 359309 Sample: Invoice-ID-(882451).vbs Startdate: 27/02/2021 Architecture: WINDOWS Score: 100 52 Found malware configuration 2->52 54 Yara detected obfuscated html page 2->54 56 Yara detected AsyncRAT 2->56 58 4 other signatures 2->58 9 wscript.exe 1 2->9         started        12 mshta.exe 19 2->12         started        process3 signatures4 60 VBScript performs obfuscated calls to suspicious functions 9->60 14 mshta.exe 23 9->14         started        17 powershell.exe 13 12->17         started        process5 dnsIp6 46 ahmedadel.work 212.64.222.172, 49706, 49710, 49721 ATLAS-ASTR Turkey 14->46 20 powershell.exe 14 20 14->20         started        48 Writes to foreign memory regions 17->48 50 Injects a PE file into a foreign processes 17->50 24 conhost.exe 17->24         started        26 aspnet_compiler.exe 17->26         started        signatures7 process8 dnsIp9 42 ahmedadel.work 20->42 44 ia801503.us.archive.org 207.241.228.153, 443, 49715 INTERNET-ARCHIVEUS United States 20->44 38 C:\Users\user\AppData\Roaming\...\Run.hta, HTML 20->38 dropped 28 powershell.exe 24 20->28         started        31 conhost.exe 20->31         started        file10 process11 signatures12 62 Writes to foreign memory regions 28->62 64 Injects a PE file into a foreign processes 28->64 33 aspnet_compiler.exe 2 28->33         started        36 aspnet_compiler.exe 28->36         started        process13 dnsIp14 40 clayroot2016.linkpc.net 193.23.3.13, 49725, 6666 HOSTSLIM-GLOBAL-NETWORKNL unknown 33->40
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a517730f91314aaaf2e7843327e8a1d7c09b8e542449152a2725f2d4361b8bb3/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uulxgd4rgffkv4xhqqzsp2fb27ajxdsuererkkrhexzninq3rozq._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
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AsyncRAT
+ 628 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat rat
Link:
https://tria.ge/reports/210227-lm8b7bfses/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Drops startup file
Blocklisted process makes network request
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
clayroot2016.linkpc.net:6666
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/a517730f91314aaaf2e7843327e8a1d7c09b8e542449152a2725f2d4361b8bb3

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:Reverse_text_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Reverse text detected

File information

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

Malspam

AsyncRAT

iso f166599c72e3ca2d8bd3487dd9a4944231a76a7fd0058c26d495bdfe54adc004

AsyncRAT

Visual Basic Script (vbs) vbs a517730f91314aaaf2e7843327e8a1d7c09b8e542449152a2725f2d4361b8bb3

(this sample)

  
Dropped by
MD5 e1e511e4fa52e0c37365b995b1a3efbf
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/119696/
  
Dropped by
SHA256 f166599c72e3ca2d8bd3487dd9a4944231a76a7fd0058c26d495bdfe54adc004

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