MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 469a999081f85b628a17c458feaa87c21afa26376275c374551917bb50b0bb95. 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: 6


Intelligence 6 IOCs YARA File information Comments

SHA256 hash: 469a999081f85b628a17c458feaa87c21afa26376275c374551917bb50b0bb95
SHA3-384 hash: 6bbaa1edac7bd686e98a8ffb73050649b4bfd0a28912c7b0597e807607560acd3f4c28665873c9dff60d995a0eb25da4
SHA1 hash: 20b4865d0acabc42bc9b7bb5c85828a95ec16788
MD5 hash: 654f412f1aa61d7923a028d6fe44271d
humanhash: muppet-bacon-fruit-cup
File name:F-1030.doc
Download: download sample
Signature MassLogger
File size:171'229 bytes
First seen:2020-10-16 07:44:09 UTC
Last seen:Never
File type:Word file doc
MIME type:text/rtf
ssdeep 3072:auTivWggNe7KaHKBoHXV3YCxfojgquUBiKtYXSHkoiHUqCQeaoYyI4moWq:auLNe+zQhYCRoj5u4i/UTQeRjmol
TLSH 8FF3AFBC75087DE6296F526BDA96BDDD03A626628AC7E4CD40B8B7C30573335FE02805
Reporter cocaman
Tags:CVE-2017-11882 doc MassLogger


Avatar
cocaman
Malicious email (T1566.001)
From: "Daisy Chiang (Ms.) <info@dc-med.com.tw>"
Received: "from postfix-inbound-2.inbound.mailchannels.net (inbound-egress-2.mailchannels.net [35.161.220.134]) "
Date: "16 Oct 2020 01:15:56 +0000"
Subject: "EIA ///// GSP INVOICE /// /F-1030"
Attachment: "F-1030.doc"

Intelligence


File Origin
# of uploads :
1
# of downloads :
89
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a window
DNS request
Creating a file in the %AppData% directory
Using the Windows Management Instrumentation requests
Reading critical registry keys
Sending an HTTP GET request
Unauthorized injection to a recently created process by context flags manipulation
Setting a global event handler for the keyboard
Creating a process from a recently created file
Enabling autorun by creating a file
Result
Threat name:
MassLogger RAT
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
Creates an undocumented autostart registry key
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Office equation editor drops PE file
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Droppers Exploiting CVE-2017-11882
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 299051 Sample: F-1030.doc Startdate: 16/10/2020 Architecture: WINDOWS Score: 100 40 Multi AV Scanner detection for domain / URL 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 Antivirus detection for URL or domain 2->44 46 12 other signatures 2->46 7 EQNEDT32.EXE 11 2->7         started        12 WINWORD.EXE 291 27 2->12         started        process3 dnsIp4 38 geneoffce.eu 91.235.116.90, 49167, 80 THCPROJECTSRO Romania 7->38 24 C:\Users\user\AppData\Roaming\KFO.exe, PE32 7->24 dropped 26 C:\Users\user\AppData\Local\...\T6M[1].exe, PE32 7->26 dropped 52 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 7->52 14 KFO.exe 2 7->14         started        28 C:\Users\user\Desktop\~$F-1030.doc, data 12->28 dropped file5 signatures6 process7 file8 30 C:\Users\user\AppData\Roaming\...\vlc.exe, PE32 14->30 dropped 54 Multi AV Scanner detection for dropped file 14->54 56 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 14->56 58 Creates an undocumented autostart registry key 14->58 60 3 other signatures 14->60 18 KFO.exe 12 14->18         started        22 powershell.exe 6 14->22         started        signatures9 process10 dnsIp11 32 elb097307-934924932.us-east-1.elb.amazonaws.com 50.19.252.36, 49168, 80 AMAZON-AESUS United States 18->32 34 nagano-19599.herokussl.com 18->34 36 api.ipify.org 18->36 48 Tries to steal Mail credentials (via file access) 18->48 50 Tries to harvest and steal browser information (history, passwords, etc) 18->50 signatures12
Threat name:
Document-Office.Exploit.CVE-2017-11882
Status:
Malicious
First seen:
2020-10-15 22:31:01 UTC
File Type:
Document
Extracted files:
3
AV detection:
25 of 48 (52.08%)
Threat level:
  5/5
Result
Malware family:
masslogger
Score:
  10/10
Tags:
spyware stealer family:masslogger
Behaviour
Launches Equation Editor
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Checks processor information in registry
Enumerates system info in registry
Office loads VBA resources, possible macro or embedded object present
Drops file in System32 directory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Blacklisted process makes network request
Executes dropped EXE
MassLogger
MassLogger Main Payload
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Malspam

MassLogger

Word file doc 469a999081f85b628a17c458feaa87c21afa26376275c374551917bb50b0bb95

(this sample)

  
Delivery method
Distributed via e-mail attachment

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