MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7b77cc567a3c5e8a31e8abe7404bc2b39198e51d4b3adae736caf5fbe484e2a6. 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 44 File information Comments

SHA256 hash:	7b77cc567a3c5e8a31e8abe7404bc2b39198e51d4b3adae736caf5fbe484e2a6
SHA3-384 hash:	b9ff33a97e7e9c202240458db38e7f3379fd9f993e8c80f5189991aaf4cf503d096a26c221720ef206648a7975b37d72
SHA1 hash:	d53277431505498980f1e460f7fcbb6e5f56b98d
MD5 hash:	8f46c856f33bbb279be7a0726f15016b
humanhash:	alpha-violet-rugby-summer
File name:	Client.exe
Download:	download sample
Signature	AsyncRAT Create hunting rule
File size:	3'136'512 bytes
First seen:	2025-02-14 11:01:04 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep	49152:ojOzoGbbNpVlHGLSa9gUBX3B3kNC3H6vUZlr/NFQ:ojO0ENBGLSm
Threatray	25 similar samples on MalwareBazaar
TLSH	T178E549A1B7E4DE2AE1BF27B1E4F201112BB1E459A722DB5E1684E57D2C533006D063BF
TrID	32.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 25.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19) 18.5% (.EXE) Win32 EXE PECompact compressed (generic) (41569/9/9) 7.3% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5) 4.7% (.EXE) Win64 Executable (generic) (10522/11/4)
Magika	pebin
Reporter	JAMESWT_WT
Tags:	196-251-92-64 AsyncRAT exe

Intelligence

File Origin

# of uploads :

# of downloads :

396

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

89bb879c72817b511d415cef263f4303784a3f8737a6bbf2b745887522b46ed6.ps1

Verdict:

Malicious activity

Analysis date:

2025-02-12 19:19:31 UTC

Tags:

opendir loader

Link:

https://app.any.run/tasks/ce7a2761-9469-4312-b393-d1dea0822e24

Note:

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

Verdict:

Malicious

Score:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=67af2384a0fd713c335acd31

Tags:

infosteal asyncrat emotet

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Сreating synchronization primitives

Using the Windows Management Instrumentation requests

Creating a window

Setting a global event handler for the keyboard

Connection attempt to an infection source

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

agenttesla anti-debug anti-vm cmd configsecuritypolicy control evasive explorer explorer findstr fingerprint fingerprint hacktool lolbin mpcmdrun msconfig msiexec netsh njrat obfuscated obfuscated obfuscated packed peunion rat razy regedit remote schtasks stealer stealerium vbnet

Link:

https://www.filescan.io/uploads/67af227dde8d8ae2bd454c7e/reports/926753b7-a806-4360-800a-e970821b41bb/overview

Verdict:

Malicious

Labled as:

Dump:Generic.Trojan.Cryo.Marte.D

Link:

https://www.hybrid-analysis.com/sample/7b77cc567a3c5e8a31e8abe7404bc2b39198e51d4b3adae736caf5fbe484e2a6

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/5a33537e-9a9f-48f4-949c-4d04aaceb998

Result

Threat name:

KeyLogger, StormKitty, VenomRAT

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1614993

Signature

Antivirus / Scanner detection for submitted sample

Found malware configuration

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

Joe Sandbox ML detected suspicious sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Queries memory information (via WMI often done to detect virtual machines)

Sample uses string decryption to hide its real strings

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

Yara detected BrowserPasswordDump

Yara detected Keylogger Generic

Yara detected Powershell download and execute

Yara detected StormKitty Stealer

Yara detected VenomRAT

Behaviour

Behavior Graph:

Download SVG

Score:

91%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/7b77cc567a3c5e8a31e8abe7404bc2b39198e51d4b3adae736caf5fbe484e2a6

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/7b77cc567a3c5e8a31e8abe7404bc2b39198e51d4b3adae736caf5fbe484e2a6/

Threat name:

ByteCode-MSIL.Trojan.CryoMarte

Status:

Malicious

First seen:

2025-02-05 20:32:27 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

30 of 37 (81.08%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=pn34yvt2hrpiumpivptuas6cwoizrzi5jm5nvzzwzl27xzee4kta._file

Verdict:

malicious

Label(s):

stormkitty

asyncrat

AsyncRAT

616666d9b60d1c211b76fac927651e82dbe9fc4d62d296b7e55950ab56cdf2a5

AsyncRAT

7266a6dc1df61156179dbe47ebdebeec58a102424b2d810c5dd4986a3ea4d61c

AsyncRAT

89bb879c72817b511d415cef263f4303784a3f8737a6bbf2b745887522b46ed6

AsyncRAT

d3f95d99814d66986a7a2edfb3961b6fb96363f8ce989d85a603fadb3a866ab5

AsyncRAT

e0cc614e2c756bfe9eb3773daa8d6c0ac66a2902826f5ccbd94113e3ff69e3db

AsyncRAT

error

AsyncRAT

+ 15 additional samples on MalwareBazaar

Result

Malware family:

stormkitty

Score:

10/10

Tags:

family:asyncrat family:stormkitty discovery rat stealer

Link:

https://tria.ge/reports/250214-m4mhxstqfz/

Behaviour

Suspicious use of AdjustPrivilegeToken

System Location Discovery: System Language Discovery

System Network Configuration Discovery: Internet Connection Discovery

Downloads MZ/PE file

AsyncRat

Asyncrat family

StormKitty

StormKitty payload

Stormkitty family

Verdict:

Malicious

Tags:

downloader trojan rat venom_rat dcrat arrowrat asyncrat stealer stormkitty Win.Packed.Razy-9807129-0

YARA:

MALWARE_Win_DLAgent10 Windows_Generic_Threat_2bb6f41d asyncrat Windows_Trojan_DCRat_1aeea1ac MALWARE_Win_VenomRAT MALWARE_Win_ArrowRAT EXE_VenomRAT_May_2024 Windows_Generic_Threat_ce98c4bc MALWARE_Win_Cyberstealer MALWARE_Win_Multi_Family_Infostealer MALWARE_Win_Unamedstealer MALWARE_Win_StormKitty

Link:

https://app.threat.zone/submission/177d9e54-2bbe-48e4-a350-6598e980b90b

Unpacked files

SH256 hash:

7b77cc567a3c5e8a31e8abe7404bc2b39198e51d4b3adae736caf5fbe484e2a6

MD5 hash:

8f46c856f33bbb279be7a0726f15016b

SHA1 hash:

d53277431505498980f1e460f7fcbb6e5f56b98d

Detections:

AsyncRAT

DiscordRatWebcamGrabber

StormKitty

Link:

https://www.unpac.me/results/74a6b421-d923-4e3c-a25e-e8ff1514bd49/

SH256 hash:

70f5cf985d8ffc9f6469c5686799e3ed42db418b98ac63dbf203e0a6124a67e2

MD5 hash:

97221cc78207c44a8b62e574df862472

SHA1 hash:

d8156222b9f7576135f113c54e486abcfe4b395e

Detections:

MALWARE_Win_DLAgent10

Link:

https://www.unpac.me/results/74a6b421-d923-4e3c-a25e-e8ff1514bd49/

Parent samples :

7266a6dc1df61156179dbe47ebdebeec58a102424b2d810c5dd4986a3ea4d61c
230b143294c018f8fc6c36581be214e2d3725546bba0a241da12854052806005
7b77cc567a3c5e8a31e8abe7404bc2b39198e51d4b3adae736caf5fbe484e2a6

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

SNC

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/7b77cc567a3c5e8a31e8abe7404bc2b39198e51d4b3adae736caf5fbe484e2a6

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:	AcRat Create hunting rule
Author:	Nikos 'n0t' Totosis
Description:	AcRat Payload (based on AsyncRat)

Rule name:	DebuggerCheck__RemoteAPI Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	detect_powershell Create hunting rule
Author:	daniyyell
Description:	Detects suspicious PowerShell activity related to malware execution

Rule name:	Detect_PowerShell_Obfuscation Create hunting rule
Author:	daniyyell
Description:	Detects obfuscated PowerShell commands commonly used in malicious scripts.

Rule name:	Disable_Defender Create hunting rule
Author:	iam-py-test
Description:	Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen

Rule name:	grakate_stealer_nov_2021 Create hunting rule

Rule name:	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs Create hunting rule
Author:	ditekSHen
Description:	Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.

Rule name:	INDICATOR_SUSPICIOUS_EXE_B64_Artifacts Create hunting rule
Author:	ditekSHen
Description:	Detects executables embedding bas64-encoded APIs, command lines, registry keys, etc.

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_DiscordURL Create hunting rule
Author:	ditekSHen
Description:	Detects executables Discord URL observed in first stage droppers

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_NoneWindowsUA Create hunting rule
Author:	ditekSHen
Description:	Detects Windows executables referencing non-Windows User-Agents

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_Messaging_Clients Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many email and collaboration clients. 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_RegKeyComb_DisableWinDefender Create hunting rule
Author:	ditekSHen
Description:	Detects executables embedding registry key / value combination indicative of disabling Windows Defender features

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:	INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice Create hunting rule
Author:	ditekSHen
Description:	Detects executables attemping to enumerate video devices using WMI

Rule name:	INDICATOR_SUSPICIOUS_References_SecTools Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many IR and analysis tools

Rule name:	Lumma_Stealer_Detection Create hunting rule
Author:	ashizZz
Description:	Detects a specific Lumma Stealer malware sample using unique strings and behaviors
Reference:	https://seanthegeek.net/posts/compromized-store-spread-lumma-stealer-using-fake-captcha/

Rule name:	Macos_Infostealer_Wallets_8e469ea0 Create hunting rule
Author:	Elastic Security

Rule name:	MALWARE_Win_ArrowRAT Create hunting rule
Author:	ditekSHen
Description:	Detects ArrowRAT

Rule name:	MALWARE_Win_AsyncRAT Create hunting rule
Author:	ditekSHen
Description:	Detects AsyncRAT

Rule name:	MALWARE_Win_CyberStealer Create hunting rule
Author:	ditekSHen
Description:	Detects CyberStealer infostealer

Rule name:	MALWARE_Win_DLAgent10 Create hunting rule
Author:	ditekSHen
Description:	Detects known downloader agent

Rule name:	MALWARE_Win_Multi_Family_InfoStealer Create hunting rule
Author:	ditekSHen
Description:	Detects Prynt, WorldWind, DarkEye, Stealerium and ToxicEye / TelegramRAT infostealers

Rule name:	MALWARE_Win_StormKitty Create hunting rule
Author:	ditekSHen
Description:	Detects StormKitty infostealer

Rule name:	MALWARE_Win_UnamedStealer Create hunting rule
Author:	ditekSHen
Description:	Detects unknown infostealer. Observed as 2nd stage and injects into .NET AppLaunch.exe

Rule name:	MALWARE_Win_VenomRAT Create hunting rule
Author:	ditekSHen
Description:	Detects VenomRAT

Rule name:	Mal_WIN_AsyncRat_RAT_PE Create hunting rule
Author:	Phatcharadol Thangplub
Description:	Use to detect AsyncRAT implant.

Rule name:	Multifamily_RAT_Detection Create hunting rule
Author:	Lucas Acha (http://www.lukeacha.com)
Description:	Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables

Rule name:	NET Create hunting rule
Author:	malware-lu

Rule name:	NETexecutableMicrosoft Create hunting rule
Author:	malware-lu

Rule name:	Njrat Create hunting rule
Author:	botherder https://github.com/botherder
Description:	Njrat

Rule name:	pe_imphash Create hunting rule

Rule name:	RANSOMWARE Create hunting rule
Author:	ToroGuitar

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

Rule name:	ThreadControl__Context Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	venomrat Create hunting rule
Author:	jeFF0Falltrades

Rule name:	Windows_Generic_Threat_21253888 Create hunting rule
Author:	Elastic Security

Rule name:	Windows_Generic_Threat_2bb6f41d Create hunting rule
Author:	Elastic Security

Rule name:	Windows_Generic_Threat_ce98c4bc Create hunting rule
Author:	Elastic Security

Rule name:	Windows_Trojan_DCRat_1aeea1ac Create hunting rule
Author:	Elastic Security

File information

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

Web download

AsyncRAT

exe 7b77cc567a3c5e8a31e8abe7404bc2b39198e51d4b3adae736caf5fbe484e2a6

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/3428941/

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/3439282/

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

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (GUARD_CF)	high

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