MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8a6818ebadd26de05a88a3938a3fc3ee593184be5448af728f5ff07e7ca2ddc. 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: 7

Intelligence 7 IOCs YARA 1 File information Comments

SHA256 hash:	b8a6818ebadd26de05a88a3938a3fc3ee593184be5448af728f5ff07e7ca2ddc
SHA3-384 hash:	036e50e1a559ed14ff1edea8c5726c29c2ffa7e244cc68ad82ad5414fd8e9b609027c44d75befc3caa767535ef1b5dc4
SHA1 hash:	ff5fa39d9302c64669c65f37547915b4252f42ba
MD5 hash:	7ad2834ccb90213af7c5c4411eb04253
humanhash:	missouri-five-wolfram-wolfram
File name:	INVOICE.PDF.exe
Download:	download sample
Signature	Matiex Create hunting rule
File size:	794'624 bytes
First seen:	2020-07-31 08:38:26 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	bd44fc7474cd1f02fae5c94314314eb4 (3 x Loki, 1 x AgentTesla, 1 x NanoCore)
ssdeep	12288:4esfUazLqCwtZKGdotXPk0XvuZFuj905RzZZaGkzlDajDEV9C:4zsEQD2Pk60A8Nfmxi4C
Threatray	6'859 similar samples on MalwareBazaar
TLSH	88F47C22B2D04832C3231A7D8F5B976C6D3ABE532D25AAC66BF51C4C5F396407936393
Reporter	abuse_ch
Tags:	exe Matiex

abuse_ch

Malspam distributing unidentified malware:

HELO: saturn2.communilink.net
Sending IP: 203.124.10.244
From: Acount Director <ronny.yu@trust-link.com.hk>
Subject: Proforma Invoice
Attachment: INVOICE.PDF.z (contains "INVOICE.PDF.exe")

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/36373/

Detection(s):

PUA.Win.Adware.Slugin-6803969-0

PUA.Win.Adware.Slugin-6840354-0

Result

Verdict:

Suspicious

Maliciousness:

Behaviour

Creating a window

Unauthorized injection to a recently created process

Using the Windows Management Instrumentation requests

Sending an HTTP GET request

Sending a custom TCP request

Reading critical registry keys

Result

Threat name:

Matiex

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/405795

Signature

Contains functionality to detect sleep reduction / modifications

Detected unpacking (changes PE section rights)

Detected unpacking (overwrites its own PE header)

Initial sample is a PE file and has a suspicious name

Maps a DLL or memory area into another process

May check the online IP address of the machine

Sigma detected: Suspicious Double Extension

Tries to steal Mail credentials (via file access)

Uses an obfuscated file name to hide its real file extension (double extension)

Uses the Telegram API (likely for C&C communication)

Yara detected Matiex Keylogger

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/b8a6818ebadd26de05a88a3938a3fc3ee593184be5448af728f5ff07e7ca2ddc/

Threat name:

Win32.Trojan.DataStealer

Status:

Malicious

First seen:

2020-07-31 02:11:00 UTC

AV detection:

37 of 48 (77.08%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=xctiddv23utn4bniri4tri74h3szggcl4vciv5zi6x7qpz6kfxoa._file

Verdict:

malicious

Label(s):

hawkeyekeylogger

Result

Malware family:

n/a

Score:

8/10

Tags:

upx spyware

Link:

https://tria.ge/reports/200731-n9celft9na/

Behaviour

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: MapViewOfSection

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of SetThreadContext

Looks up external IP address via web service

Reads user/profile data of local email clients

Reads user/profile data of web browsers

Reads user/profile data of local email clients

UPX packed file

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

Threat name:

Tinba

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/b8a6818ebadd26de05a88a3938a3fc3ee593184be5448af728f5ff07e7ca2ddc

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.