MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fc0bbe3c37a9d40c7cefaa4b5ec668b1b9513815dfbb73eaf1d3f4d8a56e0edc. 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: 9


Intelligence 9 IOCs YARA File information Comments

SHA256 hash: fc0bbe3c37a9d40c7cefaa4b5ec668b1b9513815dfbb73eaf1d3f4d8a56e0edc
SHA3-384 hash: 93728ea47cedee2cb5d2f563631bfb24f7a71615e8623c5e4c85b4b1c7228e5bcc68d5e853a89e13f1a9cc7eb6bc9483
SHA1 hash: 9dcec18ce45e45508060281ab11ef70a2476cfbd
MD5 hash: b99eea58960b20670f8321b7b324fd1d
humanhash: diet-diet-east-blossom
File name:PETRONAS.EXE
Download: download sample
Signature MassLogger
File size:585'216 bytes
First seen:2020-08-13 11:46:17 UTC
Last seen:2020-08-13 13:22:49 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 12288:Fm/azCGHwiJ6ATLJAuFMz16ERFX44tCA//Dt5AVg3ZhqHUCDhNV4l3UxWt0q:6azCGHdJHmbX4AD//DP7HWP74R8WSq
Threatray 529 similar samples on MalwareBazaar
TLSH FBC423576BECB235F53750F393F2B76287A064871A2B535E74CEA58D8700B9048E2F86
Reporter abuse_ch
Tags:exe MassLogger


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: we.webtechcool.live
Sending IP: 45.95.171.44
From: Ibrahim Mohammed <Ibrahim-Mohammed@petronas.com>
Reply-To: Ibrahim Mohammed <info@petrochemicalhousecube.xyz>
Subject: PETRONAS MALAYSIA INVITATION TO BID FOR Provision of Engineering, Procurement, Construction, Installation and Commissioning for PEGAGA Development Project – Mubadala Petroleum6
Attachment: PETRONAS MALAYSIA INVITATION TO BID FOR Provision of Engineering, Procurement, Construction, Install (contains "PETRONAS.EXE")

Intelligence


File Origin
# of uploads :
2
# of downloads :
70
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Running batch commands
Launching a process
Deleting of the original file
Result
Threat name:
MassLogger RAT
Detection:
malicious
Classification:
troj.evad
Score:
76 / 100
Signature
.NET source code contains very large array initializations
Deletes itself after installation
Injects a PE file into a foreign processes
Machine Learning detection for sample
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)
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 265697 Sample: PETRONAS.EXE Startdate: 14/08/2020 Architecture: WINDOWS Score: 76 28 Yara detected MassLogger RAT 2->28 30 .NET source code contains very large array initializations 2->30 32 Machine Learning detection for sample 2->32 34 2 other signatures 2->34 8 PETRONAS.EXE 3 2->8         started        process3 dnsIp4 26 127.0.0.1 unknown unknown 8->26 24 C:\Users\user\AppData\...\PETRONAS.EXE.log, ASCII 8->24 dropped 38 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 8->38 40 Injects a PE file into a foreign processes 8->40 13 PETRONAS.EXE 2 8->13         started        15 PETRONAS.EXE 8->15         started        file5 signatures6 process7 process8 17 cmd.exe 1 13->17         started        process9 19 powershell.exe 17 17->19         started        22 conhost.exe 17->22         started        signatures10 36 Deletes itself after installation 19->36
Threat name:
ByteCode-MSIL.Backdoor.Crysan
Status:
Suspicious
First seen:
2020-08-13 11:48:07 UTC
AV detection:
29 of 48 (60.42%)
Threat level:
  5/5
Result
Malware family:
masslogger
Score:
  10/10
Tags:
ransomware spyware stealer family:masslogger
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
Reads user/profile data of web browsers
MassLogger
MassLogger log file
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

Executable exe fc0bbe3c37a9d40c7cefaa4b5ec668b1b9513815dfbb73eaf1d3f4d8a56e0edc

(this sample)

  
Delivery method
Distributed via e-mail attachment

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