MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1278ca788a1bc30ac76bc2729281faa071817e9d980ab05c9bacf68eba06dd05. 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 4 File information Comments

SHA256 hash:	1278ca788a1bc30ac76bc2729281faa071817e9d980ab05c9bacf68eba06dd05
SHA3-384 hash:	0025079e4ffd3c2d73933f1b079b950cb78579874b5d04b62a01e8f3aa179fee4b1b90e5fe5952538b0c4a36e8200d87
SHA1 hash:	a2e1ace92405abf9abab1f55be37c68271e74720
MD5 hash:	aaacfc93235089c87e281c16689fb7b7
humanhash:	magnesium-golf-july-comet
File name:	RFQ_26102020.exe
Download:	download sample
Signature	MassLogger Create hunting rule
File size:	2'501'632 bytes
First seen:	2020-10-27 08:55:17 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep	12288:jrrh8xa4j8NVDYbzSs1OeG8o5vYJf6kGbT0MiZ4CNaV0Y0y4dStDSU3enhMcigba:vr
Threatray	452 similar samples on MalwareBazaar
TLSH	1BC56B3D6D8826A35177E277A4FA0687FEA4618673790C4F02C32B486D4AF163E9734D
Reporter	abuse_ch
Tags:	exe MassLogger

abuse_ch

Malspam distributing MassLogger:

HELO: viettelidc.com.vn
Sending IP: 103.1.208.228
From: hongquan@paragon.com.vn
Subject: REQUEST FOR QUOTATION
Attachment: RFQ_26102020-00091928762.zip (contains "RFQ_26102020.exe")

MassLogger SMTP exfil server:
mail.ladophar.com.vn:587

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/79711/

Detection(s):

SecuriteInfo.com.Trojan.GenericKD.44218434.21977.20878.UNOFFICIAL

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:

96 / 100

Link:

https://www.joesandbox.com/analysis/513092

Signature

.NET source code contains very large strings

Adds a directory exclusion to Windows Defender

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/1278ca788a1bc30ac76bc2729281faa071817e9d980ab05c9bacf68eba06dd05/

Threat name:

ByteCode-MSIL.Backdoor.Remcos

Status:

Malicious

First seen:

2020-10-26 22:20:23 UTC

AV detection:

20 of 29 (68.97%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=cj4mu6ekdpbqvr3lyjzjfap2ubyyc7u5taflaxe3vt3i5oqg3ucq._file

Verdict:

malicious

Label(s):

masslogger

MassLogger

35d0f7752b58898566762e5983987073ad1d6be30cfdd9a977f92cd14f48ab7c

MassLogger

5dd8cf7e789bc36a9a069cf42247f758e8900f8913c88e5ac84328d30e6d7c99

MassLogger

6441c31aeba714b924340c5a7f01daae9bfa57c7a0aeae2780c49efdb54ee9f6

MassLogger

70caf501b061da2729d33d4b0c5e9b9c58bc554cdbdddef16f7e057ea346808c

MassLogger

8e351736ae4bff938f1b59b396f039a6a281c4b8401f918f6b7b52b5c574d330

MassLogger

a2b0e9c1ea03a3a538fe9ef7f8e6dbf4c08feba8560e238e29fce0dd2f2e144b

MassLogger

b234b123cd33ace5b6434059665f92851e0637017abf1d5d1e009660d1c2e9d9

MassLogger

ce073fce9de335c288fe205d5bf7fbdd9fd3ecc718821116dbad098f176a69de

MassLogger

e64ff6e23ce8911e74ee402d2cc1ed3d54998a56a6fb272b50c5a87363975305

MassLogger

+ 442 additional samples on MalwareBazaar

Result

Malware family:

masslogger

Score:

10/10

Tags:

spyware stealer family:masslogger

Link:

https://tria.ge/reports/201027-823llgwdj6/

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_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