MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 51df7f6d8d41fd062005a300423afede86d60bd9da284edbeba922f7adea8be1. 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: 17


Intelligence 17 IOCs YARA 19 File information Comments

SHA256 hash: 51df7f6d8d41fd062005a300423afede86d60bd9da284edbeba922f7adea8be1
SHA3-384 hash: df7cd26a4b87644d7a061c636404dc6997a0132898b98617d2027ca74b85c2648c2360cb58bfe746a0724833e6c7c012
SHA1 hash: edeed46f7c8eff67687ea5ae249b15b1fafe77d3
MD5 hash: 3ca76a29ac7aac080444ddca045fcb3e
humanhash: papa-thirteen-uncle-robert
File name:51df7f6d8d41fd062005a300423afede86d60bd9da284edbeba922f7adea8be1
Download: download sample
Signature a310Logger
File size:753'664 bytes
First seen:2025-11-06 10:49:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:Wc9nMcTAC5uDN9iTt3BI837M5dXWbCs+c1PL7MuG0OTMfw:WwANDb83BIFFUvf
Threatray 2'868 similar samples on MalwareBazaar
TLSH T146F412D8265AEB46DAA167FD0971E23407B92DADE811C34A1FD53EEFB839F440C10693
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter adrian__luca
Tags:a310logger exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
57
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
51df7f6d8d41fd062005a300423afede86d60bd9da284edbeba922f7adea8be1
Verdict:
Malicious activity
Analysis date:
2025-11-06 15:50:53 UTC
Tags:
smtp darkcloud

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
shell virus micro
Result
Verdict:
Malware
Maliciousness:

Behaviour
Restart of the analyzed sample
Creating a file
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Unauthorized injection to a recently created process
Stealing user critical data
Adding an exclusion to Microsoft Defender
Gathering data
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-17T05:29:00Z UTC
Last seen:
2025-11-07T09:26:00Z UTC
Hits:
~1000
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.45 Win 32 Exe x86
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Status:
Malicious
First seen:
2025-10-17 09:53:27 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
28 of 38 (73.68%)
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:
51df7f6d8d41fd062005a300423afede86d60bd9da284edbeba922f7adea8be1
MD5 hash:
3ca76a29ac7aac080444ddca045fcb3e
SHA1 hash:
edeed46f7c8eff67687ea5ae249b15b1fafe77d3
SH256 hash:
491fc412b5bbb208eb3ea5184934614132b92ced1d32412f4d2c04e842067717
MD5 hash:
72101ad3f75e48e5c13b803e1dd4135b
SHA1 hash:
4ae4c2c4d0f3fafb5ff237420d8bf82fdc1ebc87
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:
b6781edd819929c2fe8b41985314c4eaed3c35ce05a61cdf911da3f09de53074
MD5 hash:
69fe9dc75c1792830f0a6d2525d05b22
SHA1 hash:
ae712836721804406194a813b91c7dd9f122d28c
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: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.

Comments