MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 20bd8539534e2dd5704b9c3bad34d64bbba4c96532dc19c522fd77edbbda3b0d. 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

a310Logger

Vendor detections: 13

Intelligence 13 IOCs YARA 24 File information Comments

SHA256 hash:	20bd8539534e2dd5704b9c3bad34d64bbba4c96532dc19c522fd77edbbda3b0d
SHA3-384 hash:	dd0b2f6691b41b39181f5f87e85c749a7efa7aae705e6909684aa38afc10c7f40d2a1fb4a40d8ce06613c06f5eb75bd5
SHA1 hash:	88ce2d4d83470b93c73e708a7ee77a62332e3549
MD5 hash:	e75e80321d6f509d2bfa7cc978fee130
humanhash:	shade-neptune-maine-batman
File name:	IMG_20260316_389277392372,PDF.js
Download:	download sample
Signature	a310Logger Create hunting rule
File size:	2'603'247 bytes
First seen:	2026-03-16 12:05:47 UTC
Last seen:	Never
File type:	js
MIME type:	text/plain
ssdeep	24576:pm0RYtqP5H2jxMOylY509eT3SdgQAoBhItOghsDSDFB/+41QFimNPqr5pIau1Jpa:pZe09c3ggVoBWO/DSJBg8ZTnuH6
Threatray	915 similar samples on MalwareBazaar
TLSH	T11FC58E19388439F04BBC7C62A4152D4C3B6503F261CA753EEB61EA469EF7F268C5D8B4
Magika	javascript
Reporter	lowmal3
Tags:	a310logger js

Intelligence

File Origin

# of uploads :

# of downloads :

137

Origin country :

Vendor Threat Intelligence

No detections

Verdict:

Malicious

Score:

81.4%

Link:

https://cyber-fortress.com/docs/result/index.php?id=69b7f23e93b644ca466a9054

Tags:

shell sage hype

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

base64 encrypted obfuscated repaired

Link:

https://www.filescan.io/uploads/69b7f23a4ec2f522cc4b1d3e/reports/bfabcd2c-0d43-41da-9fa5-74803aeaa2d5/overview

Verdict:

Malicious

Labled as:

JS/Kryptik.CYN trojan

Link:

https://www.hybrid-analysis.com/sample/20bd8539534e2dd5704b9c3bad34d64bbba4c96532dc19c522fd77edbbda3b0d

Verdict:

Malicious

File Type:

Detections:

PDM:Trojan.Win32.Generic Trojan-PSW.Win32.DarkCloud.sb Trojan.PowerShell.Cobalt.sb HEUR:Worm.Script.Generic HEUR:Trojan.Script.Generic Trojan-Spy.Agent.SMTP.C&C Trojan-PSW.Win32.Stelega.sb Trojan.JS.SAgent.sb HEUR:Trojan-Downloader.Script.Generic Trojan.Win32.InjectorNetT.s NetTool.PlainTextCredentials.SMTP.C&C HackTool.ReconScan.TCP.ServerRequest

Link:

https://opentip.kaspersky.com/20bd8539534e2dd5704b9c3bad34d64bbba4c96532dc19c522fd77edbbda3b0d/results?tab=lookup

Result

Threat name:

DarkCloud, MATRIX Crypter

Detection:

malicious

Classification:

evad.troj.spyw.expl

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1884193

Signature

AI detected malicious Powershell script

Bypasses PowerShell execution policy

Injects a PE file into a foreign processes

Joe Sandbox ML detected suspicious sample

JScript performs obfuscated calls to suspicious functions

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Sigma detected: WScript or CScript Dropper

Suspicious execution chain found

Suspicious powershell command line found

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

Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)

Tries to steal Mail credentials (via file / registry access)

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

Writes to foreign memory regions

WScript reads language and country specific registry keys (likely country aware script)

Wscript starts Powershell (via cmd or directly)

Yara detected DarkCloud

Yara detected MATRIX Crypter

Yara detected Powershell decode and execute

Yara detected Telegram RAT

Behaviour

Behavior Graph:

Download SVG

Score:

99%

Verdict:

Malware

File Type:

SCRIPT

Link:

https://malprob.io/report/20bd8539534e2dd5704b9c3bad34d64bbba4c96532dc19c522fd77edbbda3b0d

Gathering data

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/20bd8539534e2dd5704b9c3bad34d64bbba4c96532dc19c522fd77edbbda3b0d/

Verdict:

Malicious

Threat:

Family.DARKCLOUD

Link:

https://tip.neiki.dev/file/20bd8539534e2dd5704b9c3bad34d64bbba4c96532dc19c522fd77edbbda3b0d

Threat name:

Win32.Trojan.Alevaul

Status:

Malicious

First seen:

2026-03-16 12:06:21 UTC

File Type:

Text (JavaScript)

AV detection:

10 of 24 (41.67%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=ec6ykoktjyw5k4cltq522ngwjo52jslfglobtrjc7v363o62hmgq._file

Verdict:

malicious

Label(s):

darkcloudstealer

a310Logger

a57f0775c8de97d1592ffb63b65488c5f2470bc274f5fcfadbabf734f51f4c4a

a310Logger

d31951839beeb020008ba8088238a27254b1152bc5ecc5402cf40c2c4ad326f8

a310Logger

dc5696cfd8a4020c5ccdb9bec87a93d600865516c2c8d81610db9016f983dc00

a310Logger

error

a310Logger

+ 905 additional samples on MalwareBazaar

Result

Malware family:

darkcloud

Score:

10/10

Tags:

family:darkcloud defense_evasion discovery execution stealer

Link:

https://tria.ge/reports/260316-n9wjfset41/

Behaviour

Kills process with taskkill

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Command and Scripting Interpreter: JavaScript

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

Checks computer location settings

Command and Scripting Interpreter: PowerShell

DarkCloud

Darkcloud family

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/20bd8539534e2dd5704b9c3bad34d64bbba4c96532dc19c522fd77edbbda3b0d

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:	Base64_Encoded_Powershell_Directives Create hunting rule

Rule name:	DarkCloud Create hunting rule
Author:	YungBinary
Description:	https://x.com/YungBinary/status/1971585972912689643

Rule name:	DetectEncryptedVariants Create hunting rule
Author:	Zinyth
Description:	Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded

Rule name:	FreddyBearDropper Create hunting rule
Author:	Dwarozh Hoshiar
Description:	Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.

Rule name:	INDICATOR_SUSPICIOUS_Binary_References_Browsers Create hunting rule
Author:	ditekSHen
Description:	Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

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_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_SQLQuery_ConfidentialDataStore Create hunting rule
Author:	ditekSHen
Description:	Detects executables containing SQL queries to confidential data stores. Observed in infostealers

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

Rule name:	MALWARE_Win_A310Logger Create hunting rule
Author:	ditekSHen
Description:	Detects A310Logger

Rule name:	MALWARE_Win_DarkCloud Create hunting rule
Author:	ditekSHen
Description:	Detects DarkCloud infostealer

Rule name:	ProtectSharewareV11eCompservCMS Create hunting rule
Author:	malware-lu

Rule name:	RIPEMD160_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for RIPEMD-160 constants

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

Rule name:	SHA1_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for SHA1 constants

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)

Rule name:	telebot_framework Create hunting rule
Author:	vietdx.mb

Rule name:	TelegramAPIMalware_PowerShell_EXE Create hunting rule
Author:	@polygonben
Description:	Hunting for pwsh malware using Telegram for C2

Rule name:	telegram_bot_api Create hunting rule
Author:	rectifyq
Description:	Detects file containing Telegram Bot API

Rule name:	UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser Create hunting rule
Author:	malware-lu

Rule name:	VECT_Ransomware Create hunting rule
Author:	Mustafa Bakhit
Description:	Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

Rule name:	Windows_Trojan_DarkCloud_9905abce 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.

Malspam

a310Logger

js 20bd8539534e2dd5704b9c3bad34d64bbba4c96532dc19c522fd77edbbda3b0d

(this sample)

Delivery method

Distributed via e-mail attachment

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