MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef8fe456af13f104c1f67783071cb34c8ab4e16f3362a383975db6f246b8a31e. 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: 10


Intelligence 10 IOCs YARA 17 File information Comments
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SHA256 hash: ef8fe456af13f104c1f67783071cb34c8ab4e16f3362a383975db6f246b8a31e
SHA3-384 hash: 39f4c45fe63f1d03c45e2c668a079cc9fb2215c7b8fbaa4947226b102ec3c85097d019164aba65bd6c5971a607da0f24
SHA1 hash: aeff66ba4e01f4223d4ae28f18be1a138199424e
MD5 hash: ece381dfccde55a74c02bc2285fd7a13
humanhash: nine-coffee-september-sodium
File name:PO_F 1250243.js
Download: download sample
Signature a310Logger
Create hunting rule
File size:2'365 bytes
First seen:2025-09-23 06:58:47 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 48:NtJQF7wQ2ufjP6xXsTv8/DkAJzJKf/gPf1H3vk4P0xf6JDQ+TEFEzg1aS0kEf:m7wQ2mjPm/DkAtMf2YxSJ/OMYaFkEf
TLSH T13341318C7E80B081436AA937DC5F883ED721EE44508ED644D112F4D53E243B9B267E65
Magika javascript
Reporter Anonymous
Tags:a310logger js

Intelligence

File Origin
# of uploads :
1
# of downloads :
82
Origin country :
PL PL
Vendor Threat Intelligence
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68d2455386668274ceab9fd3
Tags:
dropper extens spawn
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/ef8fe456af13f104c1f67783071cb34c8ab4e16f3362a383975db6f246b8a31e
Verdict:
Malicious
File Type:
js
First seen:
2025-09-22T21:31:00Z UTC
Last seen:
2025-09-22T21:31:00Z UTC
Hits:
~100
Detections:
Trojan-Dropper.Win32.Dorifel.sbd Trojan.Snojan.HTTP.C&C PDM:Trojan.Win32.Generic Trojan-Downloader.JS.SLoad.sb Trojan-PSW.TeleBot.HTTP.C&C Trojan-Dropper.JS.SDrop.sb Trojan-PSW.Win32.DarkCloud.sb Trojan-Dropper.Win32.Demp.sb HEUR:Trojan.Script.Generic VHO:Trojan-PSW.Win32.Stealer.gen VHO:Trojan-PSW.MSIL.DarkCloud.gen Trojan-PSW.Win32.Stealer.sb Trojan.MSIL.Inject.sb Trojan-PSW.Win32.Stelega.sb HEUR:Trojan-Downloader.Script.Generic Trojan-Downloader.VBS.SLoad.sb Trojan-Downloader.JS.Cryptoload.sb VHO:Trojan.MSIL.Exnet.gen UDS:DangerousObject.Multi.Generic HEUR:Trojan-PSW.MSIL.DarkCloud.gen
Link:
https://opentip.kaspersky.com/ef8fe456af13f104c1f67783071cb34c8ab4e16f3362a383975db6f246b8a31e/results?tab=lookup
Score:
99%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/ef8fe456af13f104c1f67783071cb34c8ab4e16f3362a383975db6f246b8a31e
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ef8fe456af13f104c1f67783071cb34c8ab4e16f3362a383975db6f246b8a31e/
Verdict:
Malicious
Threat:
Family.DARKCLOUD
Link:
https://tip.neiki.dev/file/ef8fe456af13f104c1f67783071cb34c8ab4e16f3362a383975db6f246b8a31e
Threat name:
Script-JS.Downloader.Nemucod
Create hunting rule
Status:
Malicious
First seen:
2025-09-23 06:59:34 UTC
File Type:
Text (JavaScript)
AV detection:
7 of 24 (29.17%)
Threat level:
  3/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=56h6ivvpcpyqjqpwo6bqohftjsfljylpgnrkha4xlw3pervyumpa._file
Verdict:
malicious
Label(s):
darkcloudstealer
Create hunting rule
Similar samples:
error
a310Logger
Result
Malware family:
darkcloud
Create hunting rule
Score:
  10/10
Tags:
family:darkcloud discovery execution spyware stealer
Link:
https://tria.ge/reports/250923-hscr5atzhy/
Behaviour
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
Executes dropped EXE
Loads dropped DLL
Reads WinSCP keys stored on the system
Reads user/profile data of web browsers
Badlisted process makes network request
DarkCloud
Darkcloud family
Malware Config
C2 Extraction:
https://api.telegram.org/bot8441884296:AAF3UdLXPWhPMUVhvbc1PuIAlbzpjXWLlqQ/sendMessage?chat_id=6542615755
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/ef8fe456af13f104c1f67783071cb34c8ab4e16f3362a383975db6f246b8a31e

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:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:darkcloud_stealer
Create hunting rule
Author:Michelle Khalil
Description:This rule detects unpacked darkcloud malware samples.
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_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:telegram_bot_api
Create hunting rule
Author:rectifyq
Description:Detects file containing Telegram Bot API
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.

Comments