MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d793497562a74c6967e70a9a6a679538afb10d26391462dc9210ec782d4b33c9. 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 6 File information Comments

SHA256 hash:	d793497562a74c6967e70a9a6a679538afb10d26391462dc9210ec782d4b33c9
SHA3-384 hash:	129dabd72f3359a32c8a7335a775afce45dfb95521341854f6eef6bc7fdf4aced82154e774ad5fdc4d5893b0cfdb4463
SHA1 hash:	a006c9687d2f301b1eb79814bef036b890f02656
MD5 hash:	e2b53091473043126e6f442b2b6ae098
humanhash:	neptune-pizza-oranges-mike
File name:	Lime_NEWMASS.exe
Download:	download sample
Signature	MassLogger Create hunting rule
File size:	2'753'536 bytes
First seen:	2020-10-26 15:14:11 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	12288:ThwcpOmdLazhq0xj8NVDYbzSs1OeG8o5vYJf6kGbT0MiZ4CNaV0Y0y4dStDSU3ea:R5M
TLSH	70D5AC3D6D8825A39177E676A4FA0587FEA561C673781C4B02C32B4C6D4AF023E9734E
Reporter	abuse_ch
Tags:	exe MassLogger

abuse_ch

Malspam distributing MassLogger:

From: hongquan@paragon.com.vn
Subject: PO#009876456787TGS.
Attachment: PO009876456787TGS.PDF.Z (contains "Lime_NEWMASS.exe")

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/79261/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Sending a UDP request

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

Launching a process

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

Link:

https://www.joesandbox.com/analysis/512158

Signature

.NET source code contains very large strings

Adds a directory exclusion to Windows Defender

Injects a PE file into a foreign processes

Malicious sample detected (through community Yara rule)

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:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/d793497562a74c6967e70a9a6a679538afb10d26391462dc9210ec782d4b33c9/

Threat name:

ByteCode-MSIL.Infostealer.Maslog

Status:

Malicious

First seen:

2020-10-26 15:15:22 UTC

AV detection:

21 of 29 (72.41%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=26jus5lcu5ggsz7hbknguz4vhcx3cdjghekgfxescdwhqlklgpeq._file

Result

Malware family:

masslogger

Score:

10/10

Tags:

spyware stealer family:masslogger

Link:

https://tria.ge/reports/201026-gqkgweyj4a/

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:	INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture Create hunting rule
Author:	ditekSHen
Description:	Detect executables with stomped PE compilation timestamp that is greater than local current time

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