MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e1f6596be115f9fa6aea3ac07636a505c92fadbfb97de7e8f12c67a934c4d38b. 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 4 File information Comments

SHA256 hash:	e1f6596be115f9fa6aea3ac07636a505c92fadbfb97de7e8f12c67a934c4d38b
SHA3-384 hash:	72205394df67d5841751a9caea297def9cfd31384b211ba57c24185a6a0a66602c9dceae4c884c2b1168a4284ff3d04c
SHA1 hash:	4e2a0f141e155dafaa3948e46fd67c444aa95142
MD5 hash:	abe6336349ffdff29c7cd5caa34f18ed
humanhash:	spring-nevada-enemy-robin
File name:	{REQUEST FOR QUOTATION-local lot.1,2,3,4,6container..exe
Download:	download sample
Signature	MassLogger Create hunting rule
File size:	784'896 bytes
First seen:	2020-11-20 07:59:47 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:l+QCEoNdiONkqsiETgXasrrz25ZSKb44/rt4FoasqUHtUDlSmFC9cUzMEvQFTL8f:l9CdYOCqrEcasrrf2//a/mgHY9cUzME
Threatray	548 similar samples on MalwareBazaar
TLSH	92F4E0AC745075DEC81BC5B58A98EC74AA603CB7530B960381E71DEBBA1CA97CF050E3
Reporter	abuse_ch
Tags:	exe MassLogger

abuse_ch

Malspam distributing MassLogger:

HELO: futurebud.co.jp
Sending IP: 103.133.109.32
From: y.yumigeta mr. <y.yumigeta@futurebud.co.jp>
Subject: RE: *Request for Quotation*
Attachment: REQUEST FOR QUOTATION-local lot.1,2,3,4,6container..zip (contains "{REQUEST FOR QUOTATION-local lot.1,2,3,4,6container..exe")

MassLogger SMTP exfil server:
mail.vitracer.com:587

Intelligence

File Origin

# of uploads :

# of downloads :

136

Origin country :

n/a

Vendor Threat Intelligence

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

Launching a process

Reading critical registry keys

Sending an HTTP POST request

Sending a custom TCP request

Setting a global event handler for the keyboard

Result

Gathering data

Result

Threat name:

MassLogger RAT

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/543869

Signature

.NET source code contains method to dynamically call methods (often used by packers)

.NET source code references suspicious native API functions

Adds a directory exclusion to Windows Defender

Antivirus detection for URL or domain

Initial sample is a PE file and has a suspicious name

Machine Learning detection for sample

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)

Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)

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 AntiVM_3

Yara detected Costura Assembly Loader

Yara detected MassLogger RAT

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/e1f6596be115f9fa6aea3ac07636a505c92fadbfb97de7e8f12c67a934c4d38b/

Threat name:

ByteCode-MSIL.Trojan.Sudloader

Status:

Malicious

First seen:

2020-11-20 08:00:10 UTC

AV detection:

25 of 29 (86.21%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=4h3fs27bcx47u2xkhlahmnvfaxes7ln7xf66p2hrfrt2snge2ofq._file

Verdict:

malicious

Label(s):

masslogger

MassLogger

116ea34f9e2aba532b39a48d0612f43632afea0039478a6d522e5f9c66141c1b

MassLogger

1a9a0333c8c544cdf43f51eaa895169513c27bdb818f42bb301d476ac1330672

MassLogger

604ba7cdc57afe861bba16c1b768428632b09bde9b4b7bef1a74f52175c14071

MassLogger

8c781759c1c14f87be96d1f5e8cb4402c77cd6eae0a60a3a0d4ba1732319bb01

MassLogger

9c4a2d8473718bdb1725450b6f0567098006b9aa89fbd913acab1bab0857143d

MassLogger

b136291a17e064dd9d44cc454556980107d96da2a0adb1a31eb2db3531b6832a

MassLogger

b515db56b7c63191b19befe748f7af7f00d08623029e8856c86fc46362fbed9f

MassLogger

be978699739f217bd2d71f769d8f16ba1a90c519fd10f19475d4e040f9e7c05c

MassLogger

d588c7766dfc23258901040f1ab532e52d1d0a431d3f8d9e308dc92679d8a2c1

MassLogger

+ 538 additional samples on MalwareBazaar

Result

Malware family:

masslogger

Score:

10/10

Tags:

family:masslogger persistence spyware stealer

Link:

https://tria.ge/reports/201120-vqpcwt6fqj/

Behaviour

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Modifies service

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

Unpacked files

SH256 hash:

c435ea9c707e27a3ab167a8f53b068cb14e9f6354405589d3913b29d00ea4c2f

MD5 hash:

53a9976fa24b1f7fdf5371e2a1dca907

SHA1 hash:

05517f396b0d548db5658c60825ca0dc9abdc1a1

Detections:

win_masslogger_w0

Link:

https://www.unpac.me/results/54b95342-9340-457b-b1ac-43ecf569e124/

Parent samples :
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SH256 hash:

cb951f1d2b5460456aad0d89cef1216d9be5e51784d11a92447d43e96177bd5e

MD5 hash:

8cd5d2014866f4ef60802ff1826998a6

SHA1 hash:

8ff75946905d0b117080cc5a07e6e0bbea4e9bbd

Link:

https://www.unpac.me/results/54b95342-9340-457b-b1ac-43ecf569e124/

SH256 hash:

fd2ca10db9b6ff17f52520c1ce3546357bac64a0ec7b79fd33c9179d145defed

MD5 hash:

0dd9a06d369ecf33f94a56400f931802

SHA1 hash:

96329a4e54abb3108627ce3d1f2b344b686529f3

Link:

https://www.unpac.me/results/54b95342-9340-457b-b1ac-43ecf569e124/

SH256 hash:

e1f6596be115f9fa6aea3ac07636a505c92fadbfb97de7e8f12c67a934c4d38b

MD5 hash:

abe6336349ffdff29c7cd5caa34f18ed

SHA1 hash:

4e2a0f141e155dafaa3948e46fd67c444aa95142

Link:

https://www.unpac.me/results/54b95342-9340-457b-b1ac-43ecf569e124/

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