MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 637efa8a39524160858818ff63e2e0e502d5808aee97063ba4e98ee15267d0f7. 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: 9

Intelligence 9 IOCs YARA 1 File information Comments

SHA256 hash:	637efa8a39524160858818ff63e2e0e502d5808aee97063ba4e98ee15267d0f7
SHA3-384 hash:	5dd70e4b56a0051d793a69bec1aee4d478be9ed3db1409b0214e602789360ee4a40598a0907bccf23a948551e656c674
SHA1 hash:	fa287dc793075d4b4596f9cb5ce5726442e4b9cf
MD5 hash:	9ffcea176ee91a0da4bf2dde1ff41153
humanhash:	coffee-jupiter-network-december
File name:	COMPROVANTE_NUBANK_10_04_2026.js
Download:	download sample
Signature	AsyncRAT Create hunting rule
File size:	62'206 bytes
First seen:	2026-04-10 20:49:38 UTC
Last seen:	Never
File type:	js
MIME type:	text/plain
ssdeep	1536:3izPWNhxGI58oYLuUe5V3/snvpI+qlmgzLnWywzjctswdwdwlwg7Bx17Uspg:avp1qlmgzDJwzjaswdwdwlwO1g
TLSH	T13853EE1D5BEE4108B1B35F489BEB11A14A6BBB6D103C81D95488E74E4FE3A04CC967FB
TrID	66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1) 33.3% (.MP3) MP3 audio (1000/1)
Magika	txt
Reporter	johnk3r
Tags:	38-180-82-109 Downloader js stealer

Intelligence

File Origin

# of uploads :

# of downloads :

175

Origin country :

Vendor Threat Intelligence

No detections

Verdict:

Malicious

Score:

91.7%

Link:

https://cyber-fortress.com/docs/result/index.php?id=69d962a36a61012f6ad0c30b

Tags:

asyncrat backdoor spawn hype

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

anti-vm evasive fingerprint obfuscated powershell repaired

Link:

https://www.filescan.io/uploads/69d9629c5ea31bc68a1f04eb/reports/ed3bad43-28dd-484e-866d-201eaa0235c3/overview

Verdict:

Unknown

Link:

https://www.hybrid-analysis.com/sample/637efa8a39524160858818ff63e2e0e502d5808aee97063ba4e98ee15267d0f7

Verdict:

Malicious

File Type:

First seen:

2026-04-10T12:00:00Z UTC

Last seen:

2026-04-11T22:21:00Z UTC

Hits:

~10

Detections:

HEUR:Trojan.Script.Generic

Link:

https://opentip.kaspersky.com/637efa8a39524160858818ff63e2e0e502d5808aee97063ba4e98ee15267d0f7/results?tab=lookup

Result

Threat name:

n/a

Detection:

malicious

Classification:

evad

Score:

72 / 100

Link:

https://www.joesandbox.com/analysis/1896744

Signature

Malicious sample detected (through community Yara rule)

Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)

Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)

Sigma detected: WScript or CScript Dropper

Windows Scripting host queries suspicious COM object (likely to drop second stage)

Yara detected Powershell decode and execute

Behaviour

Behavior Graph:

Download SVG

Score:

96%

Verdict:

Malware

File Type:

SCRIPT

Link:

https://malprob.io/report/637efa8a39524160858818ff63e2e0e502d5808aee97063ba4e98ee15267d0f7

Gathering data

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/637efa8a39524160858818ff63e2e0e502d5808aee97063ba4e98ee15267d0f7/

Verdict:

Malicious

Threat:

Trojan.Script

Link:

https://tip.neiki.dev/file/637efa8a39524160858818ff63e2e0e502d5808aee97063ba4e98ee15267d0f7

Threat name:

Text.Trojan.Generic

Status:

Suspicious

First seen:

2026-04-10 20:50:33 UTC

File Type:

Text (JavaScript)

AV detection:

4 of 38 (10.53%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=mn7pvcrzkjawbbmidd7whyxa4ubnlaek52lqmo5e5ghocuth2d3q._file

Result

Malware family:

n/a

Score:

3/10

Tags:

execution

Link:

https://tria.ge/reports/260410-zmwfqaev2v/

Behaviour

Command and Scripting Interpreter: JavaScript

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

Threat name:

Suspicious File

Score:

0.40

Link:

https://yomi.yoroi.company/submissions/637efa8a39524160858818ff63e2e0e502d5808aee97063ba4e98ee15267d0f7

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 Create hunting rule
Author:	XiAnzheng
Description:	May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)