MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1603cd4fa0888d09a44a0e46087f4aeae9d42e68d0adbd5fdf2a60eb0343a553. 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: 16


Intelligence 16 IOCs YARA 20 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1603cd4fa0888d09a44a0e46087f4aeae9d42e68d0adbd5fdf2a60eb0343a553
SHA3-384 hash: 0a5b851b7f7c0434eca485e8b08bd755fdda67f2d878e6b54c360af9be88a493206d5dcd10d93f84643e18bcecfdad47
SHA1 hash: d086bfc49b6561f45ae8423be6c7f7a9c7b12a2c
MD5 hash: 27c56e5dc8dc0a902455fdda97de55eb
humanhash: eight-kilo-two-six
File name:Malzeme İstek Formu_30102025.pdf.exe
Download: download sample
Signature a310Logger
Create hunting rule
File size:783'360 bytes
First seen:2025-10-30 11:41:03 UTC
Last seen:2025-11-06 11:45:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:yDI4DNbXqYxEMGGocTp4oJvj1yoMVjek732RzhCQwLppjXutvrEuPerlvMiY:DiuY7TJLjsL7GRz06tTE+erJ
Threatray 3'252 similar samples on MalwareBazaar
TLSH T1A7F40259355DDC03C46A4FF84922FA3413B66E9CA555C3C74ECA3DDFBAAAB412A01383
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 lowmal3
Tags:a310logger exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
91
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
_1603cd4fa0888d09a44a0e46087f4aeae9d42e68d0adbd5fdf2a60eb0343a553.exe
Verdict:
Malicious activity
Analysis date:
2025-10-30 11:42:03 UTC
Tags:
darkcloud
Link:
https://app.any.run/tasks/6a6d2e85-f19f-4564-b095-9c39a1eb0d42

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
DarkCloud
Create hunting rule
Link:
https://www.capesandbox.com/analysis/34789/
Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69034ee69942f1282eca77b9
Tags:
underscore spawn shell micro
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
DNS request
Searching for synchronization primitives
Connection attempt
Launching the default Windows debugger (dwwin.exe)
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/1603cd4fa0888d09a44a0e46087f4aeae9d42e68d0adbd5fdf2a60eb0343a553
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-30T00:51:00Z UTC
Last seen:
2025-11-01T09:05:00Z UTC
Hits:
~1000
Detections:
Trojan-PSW.Win32.DarkCloud.sb Trojan.MSIL.Inject.sb Trojan.MSIL.Crypt.sb HEUR:Trojan.MSIL.Agent.gen Trojan-Spy.Agent.SMTP.C&C PDM:Trojan.Win32.Generic Trojan-PSW.Win32.Stelega.sb Trojan-PSW.Win32.Stealer.sb Trojan.MSIL.Taskun.sb NetTool.PlainTextCredentials.SMTP.C&C
Link:
https://opentip.kaspersky.com/1603cd4fa0888d09a44a0e46087f4aeae9d42e68d0adbd5fdf2a60eb0343a553/results?tab=lookup
Malware family:
DarkCloud
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/63c7f6f3-9a75-420c-838c-7eac911d5fef
Result
Threat name:
DarkCloud, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1805104
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.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
Injects a PE file into a foreign processes
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 PureLog Stealer
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/1603cd4fa0888d09a44a0e46087f4aeae9d42e68d0adbd5fdf2a60eb0343a553
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.54 Win 32 Exe x86
Link:
https://app.malva.re/file/27c56e5dc8dc0a902455fdda97de55eb
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1603cd4fa0888d09a44a0e46087f4aeae9d42e68d0adbd5fdf2a60eb0343a553/
Verdict:
Malicious
Threat:
Family.DARKCLOUD
Link:
https://tip.neiki.dev/file/1603cd4fa0888d09a44a0e46087f4aeae9d42e68d0adbd5fdf2a60eb0343a553
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2025-10-30 04:38:48 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=cyb42t5arcgqtjckbzdaq72k5lu5ilti2cw32x67fjqowa2duvjq._file
Verdict:
malicious
Label(s):
unc_loader_078
Create hunting rule
unc_loader_037
Create hunting rule
Similar samples:
06fde543ff6fd284c390329229bbb6ffae4de88fe0c6f4423c7ad5f975e0c2d1
a310Logger
1603cd4fa0888d09a44a0e46087f4aeae9d42e68d0adbd5fdf2a60eb0343a553
a310Logger
80ba25ee75d1be0dae2c72debaf232aa745980beab0789918eb7d6e125867514
a310Logger
d31951839beeb020008ba8088238a27254b1152bc5ecc5402cf40c2c4ad326f8
a310Logger
error
a310Logger
+ 3'242 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution
Link:
https://tria.ge/reports/251030-ntqm9shk9x/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Unpacked files
SH256 hash:
1603cd4fa0888d09a44a0e46087f4aeae9d42e68d0adbd5fdf2a60eb0343a553
MD5 hash:
27c56e5dc8dc0a902455fdda97de55eb
SHA1 hash:
d086bfc49b6561f45ae8423be6c7f7a9c7b12a2c
Link:
https://www.unpac.me/results/fc6cac02-c6d6-4571-9505-b5487fdf5c9d/
SH256 hash:
971c2edaee53648f4a93a1f0711599427bbfccc49f18a3ee2360408d21f7a516
MD5 hash:
ff4ebb1139191cc4707dbf799ecbba2e
SHA1 hash:
037e73468a0a15d7e38fc878c38cc01192a8e41c
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/fc6cac02-c6d6-4571-9505-b5487fdf5c9d/
SH256 hash:
2a2f672c50af8a24541a2fb362150e0fbd31f6c3ace97a0e10d7d6055dc1c0b3
MD5 hash:
c96f3de831bc85d17e3b8793e5bbd4dc
SHA1 hash:
2ed3317a6a2c858ce47679baa0eb7a25dd929e40
Link:
https://www.unpac.me/results/fc6cac02-c6d6-4571-9505-b5487fdf5c9d/
SH256 hash:
a639de75db2ddb427853e21464dc02cb4d1436b2c3c19335def2489160667b54
MD5 hash:
ab1f65fc23745068abbf9ec50a1151df
SHA1 hash:
96968d717d4a44a31826be44b362ee528698a13b
Detections:
darkcloudstealer
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_CC_Regex
Create hunting rule
MALWARE_Win_A310Logger
Create hunting rule
MALWARE_Win_DarkCloud
Create hunting rule
Link:
https://www.unpac.me/results/fc6cac02-c6d6-4571-9505-b5487fdf5c9d/
Parent samples :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 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/1603cd4fa0888d09a44a0e46087f4aeae9d42e68d0adbd5fdf2a60eb0343a553

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
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_CC_Regex
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing credit card regular expressions
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
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
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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
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:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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: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.

Malspam

a310Logger

Executable exe 1603cd4fa0888d09a44a0e46087f4aeae9d42e68d0adbd5fdf2a60eb0343a553

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/34789/

Comments