MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b664d1be6d6d7a962ed360c9ae54fb18209c2ebd07c98351fd581d09f7401127. 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


MassLogger


Vendor detections: 8


Intelligence 8 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b664d1be6d6d7a962ed360c9ae54fb18209c2ebd07c98351fd581d09f7401127
SHA3-384 hash: 226e496696d52e4dbf56682eaf0b389919bf842b90ab69e6b4c896b16f6150984fb3a9ea98efa0e754578001271470a7
SHA1 hash: 0a0e4dcc2397acd0fa84a56f7bfd9c04beeeff2a
MD5 hash: a074a351d53f035566270ec67481458c
humanhash: fruit-fourteen-diet-december
File name:Purchase Order.Pdf.z.z
Download: download sample
Signature MassLogger
Create hunting rule
File size:640'108 bytes
First seen:2025-10-09 12:48:22 UTC
Last seen:Never
File type: z
MIME type:application/x-rar
ssdeep 12288:jREGt5CysllQdBTQInUurFvKSB1o8T3QUY9diNefIGt:1EA5Cy4QdBTQwUuBvKSB2qQ99RgGt
TLSH T1DED4236D0BCEBCCAA2A85CC4A22E67A643785F7D1DB83A41065E60C5C57FD24CD1E23D
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:MassLogger z


Avatar
cocaman
Malicious email (T1566.001)
From: "Rebecca Lee<info@sec-acc.com>" (likely spoofed)
Received: "from sec-acc.com (unknown [158.94.208.200]) "
Date: "1 Oct 2025 22:28:24 -0700"
Subject: "New Order"
Attachment: "Purchase Order.Pdf.z.z"

Intelligence

File Origin
# of uploads :
1
# of downloads :
60
Origin country :
CH CH
File Archive Information

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

File name:Purchase Order.exe
File size:708'608 bytes
SHA256 hash: 489aa49aa694a93f51b3d4575f68216cd4a98b9e5740417f821f6d08d43c9aa5
MD5 hash: bef5be4fd94c48e58ec52537c11458b0
MIME type:application/x-dosexec
Signature MassLogger
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68e7ab1f277c2bd8bc5e5340
Tags:
spawn shell virus
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
bitmap masquerade packed packed roboski stego vbnet
Link:
https://www.filescan.io/uploads/68e7af22c74bd2958b173404/reports/a1f28964-b46e-44d2-8a6c-34a11f2401ac/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/b664d1be6d6d7a962ed360c9ae54fb18209c2ebd07c98351fd581d09f7401127
Verdict:
Malicious
File Type:
rar
First seen:
2025-10-02T00:49:00Z UTC
Last seen:
2025-10-10T03:18:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/b664d1be6d6d7a962ed360c9ae54fb18209c2ebd07c98351fd581d09f7401127/results?tab=lookup
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b664d1be6d6d7a962ed360c9ae54fb18209c2ebd07c98351fd581d09f7401127/
Verdict:
Malicious
Threat:
Family.SNAKE
Link:
https://tip.neiki.dev/file/b664d1be6d6d7a962ed360c9ae54fb18209c2ebd07c98351fd581d09f7401127
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2025-10-02 07:00:17 UTC
File Type:
Binary (Archive)
Extracted files:
12
AV detection:
20 of 24 (83.33%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wzsndptnnv5jmlwtmde24vh3daqjylv5a7eygup5laoqt52acetq._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/b664d1be6d6d7a962ed360c9ae54fb18209c2ebd07c98351fd581d09f7401127

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:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win32_dotnet_form_obfuscate
Create hunting rule
Author:Reedus0
Description:Rule for detecting .NET form obfuscate malware

File information

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

Malspam

MassLogger

z b664d1be6d6d7a962ed360c9ae54fb18209c2ebd07c98351fd581d09f7401127

(this sample)

MassLogger

Executable exe 489aa49aa694a93f51b3d4575f68216cd4a98b9e5740417f821f6d08d43c9aa5

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 489aa49aa694a93f51b3d4575f68216cd4a98b9e5740417f821f6d08d43c9aa5
  
Dropping
MassLogger
  
Dropping
MD5 bef5be4fd94c48e58ec52537c11458b0

Comments