MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d31951839beeb020008ba8088238a27254b1152bc5ecc5402cf40c2c4ad326f8. 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 23 File information Comments

SHA256 hash: d31951839beeb020008ba8088238a27254b1152bc5ecc5402cf40c2c4ad326f8
SHA3-384 hash: 5e4db7869cb07637daa5ecdef054c6a4c1365ad5b265a742650ae07e64c9290f79fed05bc69b203c723f87dcc9e1b2fe
SHA1 hash: def974a2d69fd895b26d2803a5c7e3588155d013
MD5 hash: 0f45f5382291d0ae5285021d74775e43
humanhash: yellow-failed-lemon-salami
File name:d31951839beeb020008ba8088238a27254b1152bc5ecc5402cf40c2c4ad326f8
Download: download sample
Signature a310Logger
File size:1'173'000 bytes
First seen:2025-10-10 06:46:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:P5SK/asx7sor+uhyFbNE013j1vpJXRUimR:P4+Oo+yybp1xvpJBa
TLSH T17245CF023359DF11C51F16B1C8B2C2F8033BAE45ED00D7D7AADAFEAB78B26952951193
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 :
61
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b9f5e7f8c032a909f20febb56ffdf1f1d19ddd3f527ce85378307f247807ac22.zip
Verdict:
Malicious activity
Analysis date:
2025-10-10 07:15:54 UTC
Tags:
arch-exec stealer evasion telegram ims-api generic darkcloud crypto-regex

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

Behaviour
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
DNS request
Connection attempt
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Stealing user critical data
Setting a single autorun event
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
invalid-signature obfuscated packed packed packer_detected signed strictor vbnet
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-17T13:43:00Z UTC
Last seen:
2025-10-10T07:20:00Z UTC
Hits:
~100
Detections:
PDM:Trojan.Win32.Generic Backdoor.Win32.Androm Trojan.MSIL.Inject.sb HEUR:Trojan.MSIL.Taskun.gen Trojan-PSW.Win32.Pycoon.sb Trojan-PSW.Win32.Stelega.sb Trojan-PSW.Win32.DarkCloud.sb Trojan.MSIL.Taskun.sb Trojan.MSIL.Crypt.sb Trojan-PSW.Win32.Stealer.sb Trojan-Dropper.Win32.Injector.sb not-a-virus:PDM:AdWare.Win32.Vopak.a HackTool.ReconScan.TCP.ServerRequest
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.40 Win 32 Exe x86
Threat name:
ByteCode-MSIL.Trojan.DarkCloud
Status:
Malicious
First seen:
2025-09-17 20:57:18 UTC
File Type:
PE (.Net Exe)
Extracted files:
21
AV detection:
25 of 34 (73.53%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
unc_loader_037 darkcloudstealer unc_loader_078
Similar samples:
Result
Malware family:
darkcloud
Score:
  10/10
Tags:
family:darkcloud discovery persistence spyware stealer
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Adds Run key to start application
Executes dropped EXE
Reads WinSCP keys stored on the system
Reads user/profile data of web browsers
DarkCloud
Darkcloud family
Malware Config
C2 Extraction:
https://api.telegram.org/bot8419968582:AAGRs4ffljMSYb6T1ADt95vBLuhOSYI6qew/sendMessage?chat_id=5366689155
Verdict:
Malicious
Tags:
DarkCloud
YARA:
n/a
Unpacked files
SH256 hash:
d31951839beeb020008ba8088238a27254b1152bc5ecc5402cf40c2c4ad326f8
MD5 hash:
0f45f5382291d0ae5285021d74775e43
SHA1 hash:
def974a2d69fd895b26d2803a5c7e3588155d013
SH256 hash:
1041b538ccbc7d66e59247ef7551cde9b6c282843541585e9190a8e2e3943b12
MD5 hash:
e870d1e8f3791ccc141f85f40fd2972b
SHA1 hash:
150919ee289cffa6feb40ab8261f620dd7e26aac
SH256 hash:
9780508fe6cf1eacc3ae921cd39456c3d443485946ddfa19f269b83ec520bb2c
MD5 hash:
92c47c5ba27dae4ce6eaaf7d1a97cde4
SHA1 hash:
22e57ff9f0be7c5a57f560f98e013dae0bbe3751
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
6b9febfaa5711e3e19ff5156ac287ba93c3704bec5c657ed61ef3d6ce48ab858
MD5 hash:
cc6b041bac1745b1f399f44f8b02c201
SHA1 hash:
64c9826a64a2d063cc11ea0c2781e85d417600e9
Detections:
darkcloudstealer INDICATOR_SUSPICIOUS_Binary_References_Browsers INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore INDICATOR_SUSPICIOUS_EXE_TelegramChatBot INDICATOR_SUSPICIOUS_EXE_CC_Regex MALWARE_Win_A310Logger MALWARE_Win_DarkCloud
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_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
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_References_Messaging_Clients
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. 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_Digital_Certificate
Author:albertzsigovits
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.

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