MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 50fe98208ec5bc37b5300cc089fb7103c1c6318bf76ac800c31206975406b8a1. 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 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 50fe98208ec5bc37b5300cc089fb7103c1c6318bf76ac800c31206975406b8a1
SHA3-384 hash: 3a747ba9e15e5e51f241e51d573b78eba322dbedf377024fdc3003814f0e84e2e022e02df99cb0c7a2fa3aafe938aa8d
SHA1 hash: 61409278a0e6ff4570c8c40c019afc4060d6bde9
MD5 hash: f1bcbc53e406cdb380b54cb11cf37371
humanhash: summer-floor-uranus-asparagus
File name:f1bcbc53e406cdb380b54cb11cf37371.js
Download: download sample
Signature a310Logger
Create hunting rule
File size:2'777'675 bytes
First seen:2026-02-28 10:22:34 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 49152:nFnfpl/jPCirW/N6O0Mo92YqhNrcaSFzRaFMGZmZFQAP:T
Threatray 45 similar samples on MalwareBazaar
TLSH T1A9D5BF1D17D35B63C4AB8BB240CDAA6FA7B4CE0F21D610D9AE217D4CF8AA500535F99C
Magika javascript
Reporter abuse_ch
Tags:a310logger js


Avatar
abuse_ch
a310Logger FTP exfil server:
ftp.corwineagles.com:21

Intelligence

File Origin
# of uploads :
1
# of downloads :
115
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69a2c2188fffa866e3b339c5
Tags:
ransomware shell sage
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
base64 obfuscated repaired
Link:
https://www.filescan.io/uploads/69a2c21610e80629d4f6758b/reports/0d3c19d3-eea7-4783-822d-edb4aecb3c35/overview
Verdict:
Malicious
Labled as:
JS/TrojanDropper.Agent
Link:
https://www.hybrid-analysis.com/sample/50fe98208ec5bc37b5300cc089fb7103c1c6318bf76ac800c31206975406b8a1
Verdict:
Malicious
File Type:
js
Detections:
HEUR:Trojan.Script.SAgent.gen Trojan-Spy.Stealer.FTP.C&C Trojan.Win32.InjectorNetT.s PDM:Trojan.Win32.Generic Trojan-PSW.Win32.Stelega.sb Trojan-PSW.Win32.DarkCloud.sb Trojan.PowerShell.Cobalt.sb Trojan.JS.SAgent.sb
Link:
https://opentip.kaspersky.com/50fe98208ec5bc37b5300cc089fb7103c1c6318bf76ac800c31206975406b8a1/results?tab=lookup
Result
Threat name:
DarkCloud
Create hunting rule
Detection:
malicious
Classification:
evad.troj.spyw.expl
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1876331
Signature
.NET source code contains method to dynamically call methods (often used by packers)
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
Sample uses string decryption to hide its real strings
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)
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 Powershell decode and execute
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1876331 Sample: SX73fBzArr.js Startdate: 28/02/2026 Architecture: WINDOWS Score: 100 46 shed.dual-low.part-0012.t-0009.t-msedge.net 2->46 48 part-0012.t-0009.t-msedge.net 2->48 50 2 other IPs or domains 2->50 56 Malicious sample detected (through community Yara rule) 2->56 58 Multi AV Scanner detection for submitted file 2->58 60 Yara detected DarkCloud 2->60 62 5 other signatures 2->62 9 wscript.exe 3 2->9         started        signatures3 process4 file5 44 C:\Temp\ps_3REMlu1H12wy_1772277473679.ps1, ASCII 9->44 dropped 64 JScript performs obfuscated calls to suspicious functions 9->64 66 Suspicious powershell command line found 9->66 68 Wscript starts Powershell (via cmd or directly) 9->68 70 4 other signatures 9->70 13 powershell.exe 16 9->13         started        16 taskkill.exe 9->16         started        signatures6 process7 signatures8 72 Writes to foreign memory regions 13->72 74 Injects a PE file into a foreign processes 13->74 18 aspnet_compiler.exe 13->18         started        21 aspnet_compiler.exe 3 13->21         started        23 aspnet_compiler.exe 13->23         started        27 8 other processes 13->27 25 conhost.exe 16->25         started        process9 signatures10 54 Tries to harvest and steal browser information (history, passwords, etc) 18->54 29 WerFault.exe 18->29         started        31 WerFault.exe 3 23 21->31         started        34 WerFault.exe 21 23->34         started        36 WerFault.exe 21 27->36         started        38 WerFault.exe 27->38         started        40 WerFault.exe 27->40         started        42 WerFault.exe 27->42         started        process11 dnsIp12 52 part-0012.t-0009.t-msedge.net 13.107.213.40, 443, 49765 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 31->52
Score:
99%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/50fe98208ec5bc37b5300cc089fb7103c1c6318bf76ac800c31206975406b8a1
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/50fe98208ec5bc37b5300cc089fb7103c1c6318bf76ac800c31206975406b8a1/
Verdict:
Malicious
Threat:
Family.DARKCLOUD
Link:
https://tip.neiki.dev/file/50fe98208ec5bc37b5300cc089fb7103c1c6318bf76ac800c31206975406b8a1
Threat name:
Win32.Trojan.Egairtigado
Create hunting rule
Status:
Malicious
First seen:
2026-02-27 14:46:00 UTC
File Type:
Text (JavaScript)
AV detection:
9 of 24 (37.50%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=kd7jqieoyw6dpnjqbtait63rapa4mmml65vmqagdcidjovagxcqq._file
Verdict:
malicious
Label(s):
fantomcrypt
Create hunting rule
Similar samples:
3b7f87d347783aba01c720be0d96edcf11cc26ea83e79fddd6a4825b6124ec13
a310Logger
819e15166c6189ea5cf362c6c79ed5534470e23e695ba51ec04698a1727d3f2e
a310Logger
9ea92320907fb4ec21c444f263b340e4e2db1cb0887593dc20be5c52abb217d6
a310Logger
a44cdc09efee4306bfd3e76dc65af3876965ffa9fff4a5f4b8c7b4c0fc867084
a310Logger
a7a6b9a027fefdba700161804b4cdd67843534c5b34aeb341a491c895f1fbda8
a310Logger
c29966f812a4a6b5db08fc8926aecafaa24395caea1213a8f84da02987a6ff6b
a310Logger
c5f8fd48834eb238614b5a3817aeff16510a749d51fc0da922e3b7fcca8c2af7
a310Logger
error
a310Logger
fdee5f40733e837080adc800f8edbbc2f6560e826868d2db28ddb5ad4c47288c
a310Logger
+ 35 additional samples on MalwareBazaar
Result
Malware family:
darkcloud
Create hunting rule
Score:
  10/10
Tags:
family:darkcloud defense_evasion discovery execution persistence stealer
Link:
https://tria.ge/reports/260228-mex85aay7f/
Behaviour
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
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
Drops file in Windows directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
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/50fe98208ec5bc37b5300cc089fb7103c1c6318bf76ac800c31206975406b8a1

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_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: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: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