MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8ef26b2b7ca600a007e62b5dee2e377e6b12299da67dc6dfdfb53ea2c71a8b03. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8ef26b2b7ca600a007e62b5dee2e377e6b12299da67dc6dfdfb53ea2c71a8b03
SHA3-384 hash: c693e5a00185b7f38cb5f24174637493c2c9521a2b5018bc6911cd234cecc83495a292386fc2bfa8c4ca8750b6c82c2f
SHA1 hash: bff26cf66374ba52175b11feacc82da9fbd31814
MD5 hash: c0a4c8f8e995ff629b79f69554db4042
humanhash: fish-california-avocado-oklahoma
File name:c0a4c8f8e995ff629b79f69554db4042.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'829'888 bytes
First seen:2020-11-09 07:38:44 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:WJ4gPFGazJ+gmAGBL+pmdnuKnuotM1B+VhUlwRUvk/72Z9TLSrdIPuQB1FoTZbpP:M70RJ0mdn7tTvSwgXwZzPm94fa
TLSH 8B85F94854A9638BD43737AD5B383481C3B4DA2732F8C9D6419CBAF2EE8DC359B71A05
Reporter abuse_ch
Tags:exe MassLogger


Avatar
abuse_ch
MassLogger SMTP exfil server:
bh-58.webhostbox.net:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
81
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Variant.Bulz.158275.28996.15260.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Unauthorized injection to a recently created process
Creating a file
DNS request
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Reading critical registry keys
Setting a global event handler for the keyboard
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/525948
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
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:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8ef26b2b7ca600a007e62b5dee2e377e6b12299da67dc6dfdfb53ea2c71a8b03/
Threat name:
ByteCode-MSIL.Trojan.DelShad
Create hunting rule
Status:
Malicious
First seen:
2020-11-09 07:40:06 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=r3zgwk34uyakab7gfno64lrxpzvrekm5uz64nx67wu7kfry2rmbq._file
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
family:masslogger spyware stealer
Link:
https://tria.ge/reports/201109-7cdcl5zvzn/
Behaviour
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
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
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
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:MassLogger
Create hunting rule
Author:kevoreilly
Description:MassLogger
Rule name:masslogger_gcch
Create hunting rule
Author:govcert_ch
Rule name:Quasar_RAT_1
Create hunting rule
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
Create hunting rule
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 8ef26b2b7ca600a007e62b5dee2e377e6b12299da67dc6dfdfb53ea2c71a8b03

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/460184/
  
Delivery method
Distributed via web download

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