MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8888ca416fcb0b2fa48e131a3fbadf177ed9f26528d620ff1df804f17ea8c64. 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

Matiex

Vendor detections: 5

Intelligence 5 IOCs YARA 1 File information Comments

SHA256 hash:	b8888ca416fcb0b2fa48e131a3fbadf177ed9f26528d620ff1df804f17ea8c64
SHA3-384 hash:	efd2a5caef2798f18686f30cfa7b4bbc677057cecb2d454a21cd3c906c7365405784c58e742f089deeeb87db8aeceb70
SHA1 hash:	844329ce2db6a3a6929719f27766474f77c7d047
MD5 hash:	497856229ec8ae87bda86469bf72ef64
humanhash:	virginia-iowa-monkey-white
File name:	Payment receipt.exe
Download:	download sample
Signature	Matiex Create hunting rule
File size:	131'376 bytes
First seen:	2020-08-12 06:35:19 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep	3072:NpizNLLJ56+2Zp+Y3t9zJaC8IYWOv35bY/HClgT:NpiJR2ZP3lUBJbYqlC
Threatray	643 similar samples on MalwareBazaar
TLSH	34D3E002B17AF310D1FF2AB106E5DA800B71A5F21A72851FBADC366DCE517B14C45EEA
Reporter	abuse_ch
Tags:	exe Matiex

abuse_ch

Malspam distributing unidentified malware:

HELO: malmomusikaffar.com
Sending IP: 45.138.172.137
From: 925 Silver Jewelry<info@malmomusikaffar.com>
Subject: Payment receipt
Attachment: Payment receipt.rar (contains "Payment receipt.exe")

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/43936/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Sending a UDP request

Unauthorized injection to a recently created process

Using the Windows Management Instrumentation requests

DNS request

Sending an HTTP GET request

Sending a custom TCP request

Reading critical registry keys

Creating a window

Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch

Enabling autorun

Enabling autorun by creating a file

Result

Threat name:

Matiex

Detection:

malicious

Classification:

troj.adwa.spyw.evad

Score:

96 / 100

Link:

https://www.joesandbox.com/analysis/421462

Signature

.NET source code contains very large array initializations

.NET source code references suspicious native API functions

Binary contains a suspicious time stamp

Creates an undocumented autostart registry key

Drops PE files to the startup folder

Executable has a suspicious name (potential lure to open the executable)

Initial sample is a PE file and has a suspicious name

Injects a PE file into a foreign processes

Machine Learning detection for dropped file

Machine Learning detection for sample

May check the online IP address of the machine

Tries to steal Mail credentials (via file access)

Yara detected Matiex Keylogger

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/b8888ca416fcb0b2fa48e131a3fbadf177ed9f26528d620ff1df804f17ea8c64/

Threat name:

ByteCode-MSIL.Trojan.Dothetuk

Status:

Malicious

First seen:

2020-08-12 04:14:51 UTC

AV detection:

21 of 29 (72.41%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=xceizjaw7sylf6si4ey2h65n6f363hzgkkgwed7r36ae6f7krrsa._file

Verdict:

suspicious

Result

Malware family:

n/a

Score:

10/10

Tags:

spyware persistence

Link:

https://tria.ge/reports/200812-szya9gj7t2/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Adds Run key to start application

Looks up external IP address via web service

Adds Run key to start application

Looks up external IP address via web service

Drops startup file

Reads user/profile data of local email clients

Reads user/profile data of web browsers

Drops startup file

Reads user/profile data of local email clients

Reads user/profile data of web browsers

Modifies WinLogon for persistence

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Legit

Score:

0.10

Link:

https://yomi.yoroi.company/submissions/b8888ca416fcb0b2fa48e131a3fbadf177ed9f26528d620ff1df804f17ea8c64

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.