MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b5a3cf350d8aa4afa017d90a37e3206574774eefc57c36da525a89606d704025. 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: 10


Intelligence 10 IOCs YARA 5 File information Comments

SHA256 hash: b5a3cf350d8aa4afa017d90a37e3206574774eefc57c36da525a89606d704025
SHA3-384 hash: 8392f904a586d8c3b55d0ec807c78a5dfad3852d198b497bd1ff6c379eadabbc114210069b4e7c2a1132ee8bd042c462
SHA1 hash: c4796a2d8612ef8dd11269641cb5cd532bea1256
MD5 hash: 7baac165106087233cbc5e41ab1174e5
humanhash: hydrogen-william-winter-network
File name:Our New Order Jan 12 2020 at 2.30_PVV940_PDF.exe
Download: download sample
Signature MassLogger
File size:666'624 bytes
First seen:2021-01-12 17:58:56 UTC
Last seen:2021-01-12 19:49:37 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 65b6f29d4b19d390b176b88cd5b7966d (5 x RemcosRAT, 1 x Formbook, 1 x MassLogger)
ssdeep 12288:XBi7P5/SPAXq/EKJ02t3/KUot7LNbs3rQOzH6YwDR4ZVS596njLjh:25/eAXoJJ0uroJNY3rWNE89qLjh
Threatray 806 similar samples on MalwareBazaar
TLSH 3DE4128C35A55330D8458EBC4BB977ABD1FB90690A0A2497FF8CC8031AD9DD2458977F
Reporter abuse_ch
Tags:exe MassLogger


Avatar
abuse_ch
Malspam distributing MassLogger:

HELO: correo.ida.es
Sending IP: 37.46.72.16
From: Jana Azih <jana.azih@getinge.com>
Subject: RE: AW: Our New Order/Enquiry No.00127
Attachment: Our New Order Jan 12 2020 at 2.30_PVV440_PDF.img (contains "Our New Order Jan 12 2020 at 2.30_PVV940_PDF.exe")

MassLogger SMTP exfil server:
mail.beljemi.com:587

Intelligence


File Origin
# of uploads :
2
# of downloads :
158
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Our New Order Jan 12 2020 at 2.30_PVV940_PDF.exe
Verdict:
Malicious activity
Analysis date:
2021-01-12 19:10:50 UTC
Tags:
evasion

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Sending a UDP request
DNS request
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Creating a window
Reading critical registry keys
Setting a global event handler for the keyboard
Result
Threat name:
MassLogger RAT
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Detected unpacking (creates a PE file in dynamic memory)
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Zenpak
Status:
Malicious
First seen:
2021-01-12 08:25:03 UTC
AV detection:
15 of 28 (53.57%)
Threat level:
  5/5
Result
Malware family:
masslogger
Score:
  10/10
Tags:
family:masslogger spyware stealer
Behaviour
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Reads user/profile data of web browsers
MassLogger
MassLogger Main Payload
Unpacked files
SH256 hash:
b5a3cf350d8aa4afa017d90a37e3206574774eefc57c36da525a89606d704025
MD5 hash:
7baac165106087233cbc5e41ab1174e5
SHA1 hash:
c4796a2d8612ef8dd11269641cb5cd532bea1256
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:Keylog_bin_mem
Author:James_inthe_box
Description:Contains Keylog
Rule name:MassLogger
Author:kevoreilly
Description:MassLogger
Rule name:masslogger_gcch
Author:govcert_ch
Rule name:Quasar_RAT_1
Author:Florian Roth
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
Rule name:win_masslogger_w0
Author:govcert_ch

File information


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

Malspam

MassLogger

Executable exe b5a3cf350d8aa4afa017d90a37e3206574774eefc57c36da525a89606d704025

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments