MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c03d3c01670f024dfa41af506a98140e54ffb430d609f6646f37e36d6300b2eb. 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: 7


Intelligence 7 IOCs YARA 23 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c03d3c01670f024dfa41af506a98140e54ffb430d609f6646f37e36d6300b2eb
SHA3-384 hash: 99ec125cc9cd0ca3f11183ce8a5aa8423305566c86c8d3f7ff87deb804828819e6899fd4670da61cb899e7cd97a8cb42
SHA1 hash: e370fa3516196838bde4611c833c2f7198e97064
MD5 hash: 7429c9e54f653b4a181cb44e6bd184d4
humanhash: uniform-paris-illinois-vermont
File name:MT103-4477-aking-EFTA0001630-00050.PDF.z
Download: download sample
Signature a310Logger
Create hunting rule
File size:927'394 bytes
First seen:2025-08-02 12:03:39 UTC
Last seen:Never
File type: z
MIME type:application/x-rar
ssdeep 24576:SxpaoOQGS7jb6uIJYvXIUaNMCZCAnslQt9c83g43O:SxpaoOnSzrYfjCuIQt9cw7e
TLSH T12D152312A44D3845DB728C34E719DC8BDA3894F924CD6EA888AF9EF5134FF148F3A095
TrID 61.5% (.RAR) RAR compressed archive (v5.0) (8000/1)
38.4% (.RAR) RAR compressed archive (gen) (5000/1)
Magika rar
Reporter cocaman
Tags:a310logger z


Avatar
cocaman
Malicious email (T1566.001)
From: "Ann King <ann.king@panthers.com.au>" (likely spoofed)
Received: "from panthers.com.au (unknown [167.160.161.35]) "
Date: "31 Jul 2025 17:47:46 -0700"
Subject: "Remittance Advice "
Attachment: "MT103-4477-aking-EFTA0001630-00050.PDF.z"

Intelligence

File Origin
# of uploads :
1
# of downloads :
19
Origin country :
CH CH
File Archive Information

This file archive contains 1 file(s), sorted by their relevance:

File name:MT103-4477-aking-EFTA0001630-00050.exe
File size:1'043'968 bytes
SHA256 hash: c18bc11641131b85e1ce25cf2f3c25ac5895c28fa81483ccf1bf99e06bc34eea
MD5 hash: e65243a811b7abc9848c3c15f5f6888e
MIME type:application/x-dosexec
Signature a310Logger
Vendor Threat Intelligence
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=688dfecaaf3050dc8d337a47
Tags:
micro spawn shell
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 fingerprint lolbin msbuild obfuscated obfuscated overlay packed packed reconnaissance regsvcs rezer0 roboski schtasks telegram vbc
Link:
https://www.filescan.io/uploads/688dfecadc44c87d077aa976/reports/1155cf9a-7667-4578-acc7-683146f6091d/overview
Verdict:
Malicious
Labled as:
Ransom.Sabsik
Link:
https://www.hybrid-analysis.com/sample/c03d3c01670f024dfa41af506a98140e54ffb430d609f6646f37e36d6300b2eb
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c03d3c01670f024dfa41af506a98140e54ffb430d609f6646f37e36d6300b2eb/
Verdict:
Malicious
Threat:
Family.DARKCLOUD
Link:
https://tip.neiki.dev/file/c03d3c01670f024dfa41af506a98140e54ffb430d609f6646f37e36d6300b2eb
Threat name:
Win32.Trojan.Etset
Create hunting rule
Status:
Malicious
First seen:
2025-08-01 00:32:27 UTC
File Type:
Binary (Archive)
Extracted files:
4
AV detection:
19 of 38 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ya6tyalhb4be36sbv5igvgaubzkp7nbq2ye7mzdpg7rw2yyawlvq._file
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/c03d3c01670f024dfa41af506a98140e54ffb430d609f6646f37e36d6300b2eb

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_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. 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:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
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.

Malspam

a310Logger

z c03d3c01670f024dfa41af506a98140e54ffb430d609f6646f37e36d6300b2eb

(this sample)

a310Logger

Executable exe c18bc11641131b85e1ce25cf2f3c25ac5895c28fa81483ccf1bf99e06bc34eea

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 c18bc11641131b85e1ce25cf2f3c25ac5895c28fa81483ccf1bf99e06bc34eea
  
Dropping
a310Logger
  
Dropping
MD5 e65243a811b7abc9848c3c15f5f6888e

Comments