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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 de363b807eb0e109ebedb7a1fee54020c8c6dd2f6e8febec9726b7505cecd502. 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: 11


Intelligence 11 IOCs YARA 30 File information Comments
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SHA256 hash: de363b807eb0e109ebedb7a1fee54020c8c6dd2f6e8febec9726b7505cecd502
SHA3-384 hash: 4f442c4f9f768aee98543d1a967324c6c41bdc693790eb8db3ffa8229f9b61aec7fc319d38ef307e1f626bd0e099969c
SHA1 hash: edcf400f340d930ce4f28e8a880bc9e8631283a8
MD5 hash: e41a7ccde6e71788d9b4452f3db99fe2
humanhash: lake-johnny-bravo-delaware
File name:Informe de pago devuelto (Pago BBVA).js
Download: download sample
Signature a310Logger
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File size:828'760 bytes
First seen:2026-09-30 08:22:53 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 12288:jPXIWNa097LxUTpbfrOI28GBIDNKz47yf9X:jPXI0xUTpbrS8GKUuyZ
TLSH T15305BFCED16E44D29C053FCAA8181AC75B2547734A6800283A6F7D895F778FEC05EEE6
Magika javascript
Reporter abuse_ch
Tags:a310logger BBVA ESP geo js

Intelligence

File Origin
# of uploads :
1
# of downloads :
212
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.26222.JsHeur.UNOFFICIAL
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SecuriteInfo.com.VBS.Obfus-151.UNOFFICIAL
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Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 encrypted evasive fingerprint lolbin obfuscated overlay packed persistence powershell repaired schtasks
Link:
https://www.filescan.io/uploads/6abcc6f425669a719c0c09f2/reports/db37510b-6c4f-4c73-9ac8-ca0bacce91e9/overview
Verdict:
Malicious
Labled as:
Trojan.Cryxos.JS
Link:
https://www.hybrid-analysis.com/sample/de363b807eb0e109ebedb7a1fee54020c8c6dd2f6e8febec9726b7505cecd502
Verdict:
Malicious
File Type:
js
First seen:
2026-09-29T14:01:00Z UTC
Last seen:
2026-10-01T14:53:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/de363b807eb0e109ebedb7a1fee54020c8c6dd2f6e8febec9726b7505cecd502/results?tab=lookup
Result
Threat name:
DarkCloud
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Detection:
malicious
Classification:
evad.troj.spyw.expl
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1979895
Signature
Allocates memory in foreign processes
Antivirus detection for dropped file
Found malware configuration
Injects a PE file into a foreign processes
JScript performs obfuscated calls to suspicious functions
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Potential evasive JS / VBS script found (domain check)
Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes)
Sigma detected: Dot net compiler compiles file from suspicious location
Sigma detected: WScript or CScript Dropper
Sigma detected: WScript or CScript Dropper - File
Suspicious execution chain found
Tries to harvest and steal browser information (history, passwords, etc)
Uses schtasks.exe or at.exe to add and modify task schedules
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript called in batch mode (surpress errors)
WScript reads language and country specific registry keys (likely country aware script)
Wscript starts Powershell (via cmd or directly)
Yara detected AntiVM3
Yara detected DarkCloud
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1979895 Sample: Informe de pago devuelto (P... Startdate: 30/09/2026 Architecture: WINDOWS Score: 100 75 showip.net 2->75 87 Found malware configuration 2->87 89 Malicious sample detected (through community Yara rule) 2->89 91 Antivirus detection for dropped file 2->91 93 8 other signatures 2->93 10 wscript.exe 1 2 2->10         started        14 wscript.exe 2 2->14         started        signatures3 process4 file5 71 C:\Users\user\AppData\Local\...\pub59206.js, Unicode 10->71 dropped 103 JScript performs obfuscated calls to suspicious functions 10->103 105 Wscript starts Powershell (via cmd or directly) 10->105 107 Uses schtasks.exe or at.exe to add and modify task schedules 10->107 113 3 other signatures 10->113 16 wscript.exe 5 10->16         started        73 C:\Users\user\AppData\Local\...\pub44685.js, Unicode 14->73 dropped 109 WScript reads language and country specific registry keys (likely country aware script) 14->109 111 Wscript called in batch mode (surpress errors) 14->111 20 wscript.exe 3 14->20         started        signatures6 process7 file8 55 C:\Users\user\AppData\Local\...\2450996.xml, XML 16->55 dropped 57 C:\Users\user\AppData\...\cache21666.ps1, ASCII 16->57 dropped 59 C:\Users\user\AppData\...\ChannelIndex.js, Unicode 16->59 dropped 83 Wscript starts Powershell (via cmd or directly) 16->83 85 WScript reads language and country specific registry keys (likely country aware script) 16->85 22 powershell.exe 21 16->22         started        26 schtasks.exe 1 16->26         started        61 C:\Users\user\AppData\Local\...\6873360.xml, XML 20->61 dropped 63 C:\Users\user\AppData\...\cache83155.ps1, ASCII 20->63 dropped 28 powershell.exe 20->28         started        30 schtasks.exe 20->30         started        signatures9 process10 file11 69 C:\Users\user\AppData\...\v4croowz.cmdline, Unicode 22->69 dropped 95 Writes to foreign memory regions 22->95 97 Allocates memory in foreign processes 22->97 99 Suspicious execution chain found 22->99 32 conhost.exe 22->32         started        35 RegAsm.exe 22->35         started        37 csc.exe 3 22->37         started        40 conhost.exe 26->40         started        101 Injects a PE file into a foreign processes 28->101 42 RegAsm.exe 28->42         started        45 csc.exe 28->45         started        47 conhost.exe 28->47         started        49 conhost.exe 30->49         started        signatures12 process13 dnsIp14 79 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 32->79 65 C:\Users\user\AppData\Local\...\v4croowz.dll, PE32 37->65 dropped 51 cvtres.exe 1 37->51         started        77 showip.net 162.55.60.2, 443, 49707, 49710 HETZNER-ASDE Germany 42->77 81 Tries to harvest and steal browser information (history, passwords, etc) 42->81 67 C:\Users\user\AppData\Local\...\t4pnzf24.dll, PE32 45->67 dropped 53 cvtres.exe 45->53         started        file15 signatures16 process17
Score:
91%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/de363b807eb0e109ebedb7a1fee54020c8c6dd2f6e8febec9726b7505cecd502
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/de363b807eb0e109ebedb7a1fee54020c8c6dd2f6e8febec9726b7505cecd502/
Threat name:
Script-JS.Backdoor.AsyncRAT
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Status:
Malicious
First seen:
2026-09-30 01:02:03 UTC
File Type:
Text (JavaScript)
AV detection:
12 of 23 (52.17%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=3y3dxad6wdqqt27nw6q75zkaedemnxjpn2h6x3exe23vaxhm2uba._file
Verdict:
malicious
Label(s):
DarkCloudStealer
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Link:
https://reports.threatray.com/c66c3d07-4553-4db2-b27e-d1040942fccb
Result
Malware family:
darkcloud
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Score:
  10/10
Tags:
family:darkcloud discovery execution persistence spyware stealer
Link:
https://tria.ge/reports/260930-j99zmays2j/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Command and Scripting Interpreter: JavaScript
Command and Scripting Interpreter: PowerShell
Enumerates physical storage devices
Reads the TCP/IP host and domain name from the registry
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Enumerates connected drives
Checks computer location settings
Reads WinSCP keys stored on the system
Reads user/profile data of web browsers
Family: DarkCloud
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/de363b807eb0e109ebedb7a1fee54020c8c6dd2f6e8febec9726b7505cecd502

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:DarkCloud
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Author:YungBinary
Description:https://x.com/YungBinary/status/1971585972912689643
Rule name:DebuggerCheck__API
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
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Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:FreddyBearDropper
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Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:golang_bin_JCorn_CSC846
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Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
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Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_CC_Regex
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Author:ditekSHen
Description:Detects executables referencing credit card regular expressions
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
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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
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Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore
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Author:ditekSHen
Description:Detects executables containing SQL queries to confidential data stores. Observed in infostealers
Rule name:INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
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Author:ditekSHen
Description:Detects executables using Telegram Chat Bot
Rule name:MALWARE_Win_A310Logger
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Author:ditekSHen
Description:Detects A310Logger
Rule name:MALWARE_Win_DarkCloud
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Author:ditekSHen
Description:Detects DarkCloud infostealer
Rule name:ProtectSharewareV11eCompservCMS
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Author:malware-lu
Rule name:RIPEMD160_Constants
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Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vba
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
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Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SUSPICIOUS_Potential_DDR
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Author:NyxIndius
Description:Detects PE files referencing web services potentially used as dead drop resolvers, with network capability correlation for single-indicator cases
Rule name:Suspicious_Process
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Author:Security Research Team
Description:Suspicious process creation
Rule name:SUSP_Script_PowerShell_Hidden_Launcher
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Author:Marjoriefort
Description:Script (JS/VBS) lancant PowerShell en mode furtif - dropper frais MalwareBazaar
Reference:Veille fraicheur 2026-09-14 / cluster misses web
Rule name:Sus_CMD_Powershell_Usage
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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
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Author:vietdx.mb
Rule name:TelegramAPIMalware_PowerShell_EXE
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Author:@polygonben
Description:Hunting for pwsh malware using Telegram for C2
Rule name:telegram_bot_api
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Author:rectifyq
Description:Detects file containing Telegram Bot API
Rule name:UPX
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Author:kevoreilly
Description:UPX Unpacker: dump on OEP (original entry point)
Rule name:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
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Author:malware-lu
Rule name:VECT_Ransomware
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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
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Author:Elastic Security

File information

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

Comments