MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b77d6b67665244dff6ac0d618bce920cef9503a3d6fbd9fd6a4224345fff9661. 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: 7


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

SHA256 hash: b77d6b67665244dff6ac0d618bce920cef9503a3d6fbd9fd6a4224345fff9661
SHA3-384 hash: a87a8f9545ad19e5b9812482fbb908b1983d5605eb4c40b57aa27ce885d973466bf28c3fcd598dc8a20daee3681a5b65
SHA1 hash: dbaf225ceae15638064983e5d24b67e7c0181a05
MD5 hash: 13caa6ddec0f377f4a1ce2fda75dc9ec
humanhash: jersey-victor-stairway-kansas
File name:Cargo booking for BFL against PO # 8000422.Pdf.z
Download: download sample
Signature MassLogger
Create hunting rule
File size:644'679 bytes
First seen:2025-10-06 08:23:36 UTC
Last seen:2025-10-06 11:36:31 UTC
File type: z
MIME type:application/x-rar
ssdeep 12288:9qB+nUclL/RrhZqRQvZ1vCWSI2jsI+j7JWn7tUvf5f21a/vSej89iZvdxisxR0:ABgUS7RrbdLCWSI2jsI+jUn7tUH5f21R
TLSH T170D423F5C28C4C2CC6BDFA7CA614D19089B83F1AFCA426AEEDB7E074E7494144D4E946
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: "Muhammed Ali<mali.pkkhi@freightsystems.com>" (likely spoofed)
Received: "from freightsystems.com (unknown [158.94.208.200]) "
Date: "6 Oct 2025 04:34:29 -0700"
Subject: "RE: REF : PO# 9000395"
Attachment: "Cargo booking for BFL against PO # 8000422.Pdf.z"

Intelligence

File Origin
# of uploads :
2
# of downloads :
61
Origin country :
CH CH
File Archive Information

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

File name:Cargo booking for BFL against PO # 8000422.exe
File size:690'176 bytes
SHA256 hash: 347d109045d063f1afca21b6f2babcf04c809972cfe10ccd90430e1a1f8665e0
MD5 hash: cd6f4b91fdde6aee66a4146a7cc2c41c
MIME type:application/x-dosexec
Signature MassLogger
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68e37cbf91bc581176cc4fcc
Tags:
micro spawn shell
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 bitmap lolbin msbuild obfuscated packed packed reconnaissance regsvcs rezer0 roboski schtasks stego telegram vbc vbnet
Link:
https://www.filescan.io/uploads/68e37cc5d4a0085473c14e6c/reports/12ae35cf-7522-4b7e-8f7c-87ace541d857/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/b77d6b67665244dff6ac0d618bce920cef9503a3d6fbd9fd6a4224345fff9661
Verdict:
Malicious
File Type:
rar
First seen:
2025-10-07T03:57:00Z UTC
Last seen:
2025-10-07T04:26:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/b77d6b67665244dff6ac0d618bce920cef9503a3d6fbd9fd6a4224345fff9661/results?tab=lookup
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b77d6b67665244dff6ac0d618bce920cef9503a3d6fbd9fd6a4224345fff9661/
Verdict:
Malicious
Threat:
Family.SNAKE
Link:
https://tip.neiki.dev/file/b77d6b67665244dff6ac0d618bce920cef9503a3d6fbd9fd6a4224345fff9661
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2025-10-06 08:23:39 UTC
File Type:
Binary (Archive)
Extracted files:
7
AV detection:
23 of 38 (60.53%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w56wwz3gkjcn75vmbvqyxtusbtxzka5d2355t7lkiisdix77szqq._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/b77d6b67665244dff6ac0d618bce920cef9503a3d6fbd9fd6a4224345fff9661

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:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
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: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 b77d6b67665244dff6ac0d618bce920cef9503a3d6fbd9fd6a4224345fff9661

(this sample)

MassLogger

Executable exe 347d109045d063f1afca21b6f2babcf04c809972cfe10ccd90430e1a1f8665e0

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 347d109045d063f1afca21b6f2babcf04c809972cfe10ccd90430e1a1f8665e0
  
Dropping
MassLogger
  
Dropping
MD5 cd6f4b91fdde6aee66a4146a7cc2c41c

Comments