MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 119106aeac2ed36c440f01ce5b1cdd3baca8f1d2484a4f9bbc35228e5236b692. 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 3 File information Comments

SHA256 hash: 119106aeac2ed36c440f01ce5b1cdd3baca8f1d2484a4f9bbc35228e5236b692
SHA3-384 hash: 6d1e2a2dab38e48e5534f7e9a30efe44e7a4d20f338c08a72b46873505d97c55603b3dbdcb79427d630ce98864309027
SHA1 hash: 98c93c41cc55d09e75deafbd93bbc68b0bf64af6
MD5 hash: 27894cddb23422db89697f8fcc31e4a8
humanhash: beryllium-charlie-washington-ink
File name:27894cddb23422db89697f8fcc31e4a8.exe
Download: download sample
Signature MassLogger
File size:1'429'504 bytes
First seen:2020-11-05 07:29:44 UTC
Last seen:2020-11-05 09:35:35 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:mS7aLqn6dFIEm+gpBVJAanxD2/16aD9w+tpbRI7Wu1nx/FFf:m
TLSH 9A654CF891AE1492F15F8539B6AEBDA402B1B583DBDB9D480378F3710BBA7563F01508
Reporter abuse_ch
Tags:exe MassLogger


Avatar
abuse_ch
MassLogger SMTP exfil server:
mail.hkoffice365.com:587

Intelligence


File Origin
# of uploads :
2
# of downloads :
91
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
DNS request
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Creating a window
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Setting a global event handler for the keyboard
Result
Threat name:
MassLogger RAT
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
Machine Learning detection for dropped file
Machine Learning detection for sample
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 309602 Sample: 5fNtovgDmX.exe Startdate: 05/11/2020 Architecture: WINDOWS Score: 100 44 Multi AV Scanner detection for dropped file 2->44 46 Multi AV Scanner detection for submitted file 2->46 48 Yara detected MassLogger RAT 2->48 50 8 other signatures 2->50 6 5fNtovgDmX.exe 1 4 2->6         started        10 vlc.exe 1 2->10         started        12 vlc.exe 2->12         started        process3 file4 24 C:\Users\user\AppData\Roaming\...\vlc.exe, PE32 6->24 dropped 26 C:\Users\user\...\vlc.exe:Zone.Identifier, ASCII 6->26 dropped 28 C:\Users\user\AppData\...\5fNtovgDmX.exe.log, ASCII 6->28 dropped 52 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 6->52 14 5fNtovgDmX.exe 15 2 6->14         started        18 vlc.exe 14 2 10->18         started        20 vlc.exe 10->20         started        22 vlc.exe 2 12->22         started        signatures5 process6 dnsIp7 30 elb097307-934924932.us-east-1.elb.amazonaws.com 184.73.247.141, 49754, 80 AMAZON-AESUS United States 14->30 32 192.168.2.1 unknown unknown 14->32 38 2 other IPs or domains 14->38 54 Tries to steal Mail credentials (via file access) 14->54 56 Tries to harvest and steal browser information (history, passwords, etc) 14->56 34 23.21.126.66, 49763, 80 AMAZON-AESUS United States 18->34 40 2 other IPs or domains 18->40 36 54.243.161.145, 49764, 80 AMAZON-AESUS United States 22->36 42 2 other IPs or domains 22->42 signatures8
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Status:
Malicious
First seen:
2020-11-05 03:27:36 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Result
Malware family:
masslogger
Score:
  10/10
Tags:
family:masslogger persistence spyware stealer
Behaviour
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
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:
119106aeac2ed36c440f01ce5b1cdd3baca8f1d2484a4f9bbc35228e5236b692
MD5 hash:
27894cddb23422db89697f8fcc31e4a8
SHA1 hash:
98c93c41cc55d09e75deafbd93bbc68b0bf64af6
SH256 hash:
83c08f0721c8b0c96e3d6a8f3ccaf5c96fbcc427d574625c34424c3429fefaa1
MD5 hash:
3c5dbcc3bb27e913e14efd8054811373
SHA1 hash:
b0eba9388abddaef9d5aa49ccd5dbab2924cced0
SH256 hash:
106c40532a378bd829e711387f1797672472b11270f8334ccf799e9356523197
MD5 hash:
ce020eb8f730433fcc7784004221f881
SHA1 hash:
be4f29d9821e7e632d6fc866c3c46be8b656b35e
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_gcch
Author:govcert_ch
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.

Web download

MassLogger

Executable exe 119106aeac2ed36c440f01ce5b1cdd3baca8f1d2484a4f9bbc35228e5236b692

(this sample)

  
Delivery method
Distributed via web download

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