MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a83120ce8dea78816c294e86302d18cb962fec55f3cdb068f9ee56069856bb63. 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: 18


Intelligence 18 IOCs YARA 21 File information Comments

SHA256 hash: a83120ce8dea78816c294e86302d18cb962fec55f3cdb068f9ee56069856bb63
SHA3-384 hash: 1b2de2ce4b889c893095d112eb66278de4e4051eb413de31a1f6e0b7236c86c130caad15ad5963ce8647deebcc48cdae
SHA1 hash: 897d7be36341fe80e51a41c0f4e4847d515e5833
MD5 hash: 0f7967c33b3dba1a767d905dd8a3876c
humanhash: utah-fifteen-undress-fruit
File name:Halkbank_Ekstre_2025 0017_164557_198850.pdf.exe
Download: download sample
Signature a310Logger
File size:775'168 bytes
First seen:2025-10-29 15:57:33 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:6BO0Umq/177R31L04XUQ7XvGCjVYhnUa4D11VZ1AmHRUK5a/Tbck6rZ7Uc:6A0Umq97t1L04rXvGiLa4DfjSK5ETbcl
Threatray 2'691 similar samples on MalwareBazaar
TLSH T194F4F1983350F09FC9A3973288B4EDB4A2647DAB9713C20751D71DAF796D9D6CE003A2
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10522/11/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
Reporter abuse_ch
Tags:a310logger exe geo Halkbank TUR

Intelligence


File Origin
# of uploads :
1
# of downloads :
89
Origin country :
SE SE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
034cd9425a85063aa733dbd44e25d8b1f2e01fcc487b7b374290c8ca2b4fdcd0.zip
Verdict:
Suspicious activity
Analysis date:
2025-10-29 16:04:49 UTC
Tags:
arch-exec darkcloud

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
94.9%
Tags:
underscore spawn shell micro
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Connection attempt
Сreating synchronization primitives
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Stealing user critical data
Adding an exclusion to Microsoft Defender
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade obfuscated obfuscated obfuscated packed packed packer_detected vbnet
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-29T02:22:00Z UTC
Last seen:
2025-10-29T12:50:00Z UTC
Hits:
~1000
Result
Threat name:
DarkCloud
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Found malware configuration
Initial sample is a PE file and has a suspicious name
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Suspicious Double Extension File Execution
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)
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AntiVM3
Yara detected DarkCloud
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Verdict:
inconclusive
YARA:
12 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.71 Win 32 Exe x86
Gathering data
Threat name:
Win32.Trojan.Kepavll
Status:
Malicious
First seen:
2025-10-29 06:50:35 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
21 of 37 (56.76%)
Threat level:
  5/5
Result
Malware family:
darkcloud
Score:
  10/10
Tags:
family:darkcloud discovery execution spyware stealer
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Reads WinSCP keys stored on the system
Reads user/profile data of web browsers
Command and Scripting Interpreter: PowerShell
DarkCloud
Darkcloud family
Unpacked files
SH256 hash:
a83120ce8dea78816c294e86302d18cb962fec55f3cdb068f9ee56069856bb63
MD5 hash:
0f7967c33b3dba1a767d905dd8a3876c
SHA1 hash:
897d7be36341fe80e51a41c0f4e4847d515e5833
SH256 hash:
8e500e316f1de98a83dd8c9649b2121a7d160d22a728083010c304c9fe201fd8
MD5 hash:
4ece8b25571cd0519eb43f2f53ca73fa
SHA1 hash:
7d9e4618c8895896f6bfa855d8afa5fb7548e116
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
a639de75db2ddb427853e21464dc02cb4d1436b2c3c19335def2489160667b54
MD5 hash:
ab1f65fc23745068abbf9ec50a1151df
SHA1 hash:
96968d717d4a44a31826be44b362ee528698a13b
Detections:
darkcloudstealer INDICATOR_SUSPICIOUS_Binary_References_Browsers INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore INDICATOR_SUSPICIOUS_EXE_TelegramChatBot INDICATOR_SUSPICIOUS_EXE_CC_Regex MALWARE_Win_A310Logger MALWARE_Win_DarkCloud
SH256 hash:
81c878e71a82aa8f4175648d188a1f75acf99cd0b02ef0f48e814fb4f44f0fc0
MD5 hash:
2c401550efe4777b67fa67fb7cecdfbc
SHA1 hash:
e5515434b9685499ad38499f4b59ed8c017b88b4
Malware family:
DarkCloud
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

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:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:FreddyBearDropper
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_CC_Regex
Author:ditekSHen
Description:Detects executables referencing credit card regular expressions
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
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
Author:ditekSHen
Description:Detects executables containing SQL queries to confidential data stores. Observed in infostealers
Rule name:INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Author:ditekSHen
Description:Detects executables using Telegram Chat Bot
Rule name:MALWARE_Win_A310Logger
Author:ditekSHen
Description:Detects A310Logger
Rule name:MALWARE_Win_DarkCloud
Author:ditekSHen
Description:Detects DarkCloud infostealer
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:ProtectSharewareV11eCompservCMS
Author:malware-lu
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vba
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:TelegramAPIMalware_PowerShell_EXE
Author:@polygonben
Description:Hunting for pwsh malware using Telegram for C2
Rule name:telegram_bot_api
Author:rectifyq
Description:Detects file containing Telegram Bot API
Rule name:Windows_Trojan_DarkCloud_9905abce
Author:Elastic Security

File information


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

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