MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3163cce36440d2b1cbc265a56298664026d1ddf3885ca0962367028c88d07113. 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: 15

Intelligence 15 IOCs YARA 20 File information Comments

SHA256 hash:	3163cce36440d2b1cbc265a56298664026d1ddf3885ca0962367028c88d07113
SHA3-384 hash:	be825fdf97828651a593505902c96fe279b3e6c3a042aeb8f98461ea1e91ccaabf3c1bca84340e9742a47e369992e945
SHA1 hash:	cea0e62f31a0ab68ceb8fff68d36e8c09e8a9c83
MD5 hash:	62b6260c98e5afe1c20f7dfb031c6cbc
humanhash:	edward-beryllium-eight-virginia
File name:	62b6260c98e5afe1c20f7dfb031c6cbc.exe
Download:	download sample
Signature	AsyncRAT Create hunting rule
File size:	230'912 bytes
First seen:	2023-06-30 07:19:06 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	3072:j+STW8djpN6izj8mZwlsdZ5b4GaBfVaDUbBKfDqRY6RAYnecDQ+g3H1vKx6+Wpw:A8XN6W8mmlKgfMDUbofDq+YnJ
Threatray	60 similar samples on MalwareBazaar
TLSH	T145348E0437DA662BE3BF97B8F460011583B2E4137627C7AF1ED498E91DA3315D980BB6
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	abuse_ch
Tags:	AsyncRAT exe RAT

Intelligence

File Origin

# of uploads :

# of downloads :

288

Origin country :

Vendor Threat Intelligence

Malware family:

asyncrat

ID:

File name:

62b6260c98e5afe1c20f7dfb031c6cbc.exe

Verdict:

Malicious activity

Analysis date:

2023-06-30 07:23:27 UTC

Tags:

stealer asyncrat evasion

Link:

https://app.any.run/tasks/2343d4ea-628c-4fe5-94a7-d2a8430526c5

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/403960/

Detection(s):

Win.Packed.AsyncRAT-9938103-1

Result

Verdict:

Malware

Maliciousness:

Behaviour

Sending a custom TCP request

Using the Windows Management Instrumentation requests

Creating a file

Reading critical registry keys

Creating a file in the %temp% directory

Creating a window

Running batch commands

Launching a process

Launching the process to change network settings

Сreating synchronization primitives

Stealing user critical data

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm asyncrat cmd crypto data findstr hacktool lolbin net netsh njrat packed rat reg replace schtasks stealer

Link:

https://www.filescan.io/uploads/649e82242299d268826378a6/reports/5192daa0-fed8-4591-9803-c025df97a7de/overview

Verdict:

Malicious

Labled as:

IL:Trojan.MSILZilla

Link:

https://www.hybrid-analysis.com/sample/3163cce36440d2b1cbc265a56298664026d1ddf3885ca0962367028c88d07113

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.

Malware family:

Stealerium Stealer

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/1690a3a5-5618-4532-98ee-a9cf4d87fb76

Result

Threat name:

AsyncRAT, StormKitty, WorldWind Stealer

Detection:

malicious

Classification:

rans.troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1263681

Signature

.NET source code contains potential unpacker

Antivirus / Scanner detection for submitted sample

Antivirus detection for URL or domain

Found malware configuration

Found many strings related to Crypto-Wallets (likely being stolen)

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

May check the online IP address of the machine

Modifies existing user documents (likely ransomware behavior)

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for submitted file

Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)

Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)

Sigma detected: Capture Wi-Fi password

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

Tries to harvest and steal browser information (history, passwords, etc)

Tries to harvest and steal WLAN passwords

Uses netsh to modify the Windows network and firewall settings

Uses the Telegram API (likely for C&C communication)

Yara detected AsyncRAT

Yara detected Generic Downloader

Yara detected StormKitty Stealer

Yara detected Telegram RAT

Yara detected Telegram Recon

Yara detected WorldWind Stealer

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/3163cce36440d2b1cbc265a56298664026d1ddf3885ca0962367028c88d07113/

Threat name:

ByteCode-MSIL.Backdoor.AsyncRAT

Status:

Malicious

First seen:

2023-06-30 01:32:01 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

28 of 36 (77.78%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=gfr4zy3eidjlds6cmwswfgdgiatndxptrbokbfrdm4bizcgqoejq._file

Verdict:

malicious

AsyncRAT

3a23f25fbb533df0fdc29eebe8f5f2434a5169683a74097a8a18d554e0d071fd

AsyncRAT

646d0fa0bc6f0b37f0eded18a574f927106e6b9ff18aa9a173d33ced3b25017c

AsyncRAT

6cdb8d1af85d10ed3022ae0a183e3e9dff0ad1bc4a90915e7e41b600154a349e

AsyncRAT

719169d99a13f958de7a3f58d34ac4262cc90924eea256c782ed0b82de6adc0a

AsyncRAT

7335f630871bdc94e06188a1f0fd432e62fda760498ba0cfbccfd3b2ec2626ab

AsyncRAT

969182320bfbad6534c5180717656b2bc2f09e8180c4b6f826ee2e63b9210027

AsyncRAT

b8f409e32caf95736c07d32de5f049382734eac7b5f5391fc270449d69ee94a3

AsyncRAT

dc813f0190bf6e0339c33fb5ef149bb7a7561f46bbad75c4a843c126d3be4b30

AsyncRAT

+ 50 additional samples on MalwareBazaar

Result

Malware family:

stormkitty

Score:

10/10

Tags:

family:asyncrat family:stormkitty botnet:default rat spyware stealer

Link:

https://tria.ge/reports/230630-h54flsgd83/

Behaviour

Checks processor information in registry

Modifies system certificate store

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Drops desktop.ini file(s)

Looks up external IP address via web service

Looks up geolocation information via web service

Reads user/profile data of web browsers

Async RAT payload

AsyncRat

StormKitty

StormKitty payload

Malware Config

C2 Extraction:

127.0.0.1:6606
127.0.0.1:7707
127.0.0.1:8808
https://api.telegram.org/bot6154715708:AAGKCDwosu3IuPM9RPnUhnOetL8Sftgqoy0/sendMessage?chat_id=1165040754

Unpacked files

SH256 hash:

3163cce36440d2b1cbc265a56298664026d1ddf3885ca0962367028c88d07113

MD5 hash:

62b6260c98e5afe1c20f7dfb031c6cbc

SHA1 hash:

cea0e62f31a0ab68ceb8fff68d36e8c09e8a9c83

Detections:

WorldWindStealer

win_asyncrat_w0

Link:

https://www.unpac.me/results/e34fdb85-63cd-442a-bfe2-8774a96a063e/

Malware family:

AsyncRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/3163cce36440/report/overview.html

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:	INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse Create hunting rule
Author:	ditekSHen
Description:	Detects file containing reversed ASEP Autorun registry keys

Rule name:	INDICATOR_SUSPICIOUS_EXE_CC_Regex Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing credit card regular expressions

Rule name:	INDICATOR_SUSPICIOUS_EXE_Discord_Regex Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing Discord tokens regular expressions

Rule name:	INDICATOR_SUSPICIOUS_EXE_RawGitHub_URL Create hunting rule
Author:	ditekSHen
Description:	Detects executables containing URLs to raw contents of a Github gist

Rule name:	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

Rule name:	INDICATOR_SUSPICIOUS_EXE_References_CryptoWallets Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many cryptocurrency mining wallets or apps. Observed in information stealers

Rule name:	INDICATOR_SUSPICIOUS_EXE_References_VPN Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many VPN software clients. Observed in infosteslers

Rule name:	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL Create hunting rule
Author:	ditekSHen
Description:	Detects binaries and memory artifcats referencing sandbox DLLs typically observed in sandbox evasion

Rule name:	INDICATOR_SUSPICIOUS_EXE_TelegramChatBot Create hunting rule
Author:	ditekSHen
Description:	Detects executables using Telegram Chat Bot

Rule name:	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing Windows vault credential objects. Observed in infostealers

Rule name:	INDICATOR_SUSPICIOUS_EXE_WirelessNetReccon Create hunting rule
Author:	ditekSHen
Description:	Detects executables with interest in wireless interface using netsh

Rule name:	malware_asyncrat Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect AsyncRat in memory
Reference:	internal research

Rule name:	malware_asyncrat Create hunting rule
Description:	detect AsyncRat in memory
Reference:	https://github.com/NYAN-x-CAT/AsyncRAT-C-Sharp

Rule name:	msil_suspicious_use_of_strreverse Create hunting rule
Author:	dr4k0nia
Description:	Detects mixed use of Microsoft.CSharp and VisualBasic to use StrReverse

Rule name:	pe_imphash Create hunting rule

Rule name:	prynt_stealer Create hunting rule
Author:	Nikos 'n0t' Totosis
Description:	Prynt Stealer Payload

Rule name:	Skystars_Malware_Imphash Create hunting rule
Author:	Skystars LightDefender
Description:	imphash

Rule name:	SUSP_NET_Msil_Suspicious_Use_StrReverse Create hunting rule
Author:	dr4k0nia, modified by Florian Roth
Description:	Detects mixed use of Microsoft.CSharp and VisualBasic to use StrReverse
Reference:	https://github.com/dr4k0nia/yara-rules

Rule name:	win_asyncrat_j1 Create hunting rule
Author:	Johannes Bader @viql
Description:	detects AsyncRAT

Rule name:	win_asyncrat_w0 Create hunting rule
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

exe 3163cce36440d2b1cbc265a56298664026d1ddf3885ca0962367028c88d07113

(this sample)

Cape

https://www.capesandbox.com/analysis/403960/

URLhaus

https://urlhaus.abuse.ch/url/2671913/

Delivery method

Distributed via web download

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