MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ff3eb81477b36ac2239b623085961439379064929b20c4a69f72cb266adece83. 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

RemcosRAT

Vendor detections: 7

Intelligence 7 IOCs YARA 2 File information Comments

SHA256 hash:	ff3eb81477b36ac2239b623085961439379064929b20c4a69f72cb266adece83
SHA3-384 hash:	7caf16f537f7f673875c5f391f4392198752d9c82c42887b8afc8127fd23147fc9d5aaee1fe456b0f63ff711937b39dc
SHA1 hash:	88fc7c4275f93c404efa073a80ce61e0e7f3ee5a
MD5 hash:	f0a88db6d16630640775a733efd9527f
humanhash:	alabama-steak-mexico-wolfram
File name:	PO839-DOC83475348-834_pdf.exe
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	173'568 bytes
First seen:	2020-07-13 06:27:47 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep	3072:YCKhk7/ToVF8mqRLjNgtyVzRiMOACVJr1EAezUX+F2JI0yuP0D9:p0F8mw2tyVzRiM2V0wxjyu8
Threatray	1'219 similar samples on MalwareBazaar
TLSH	0B040155A39E4326EC796931BF215395C2BE9B54C513F2989B1E33D88E337014A227F1
Reporter	abuse_ch
Tags:	exe RAT RemcosRAT

abuse_ch

Malspam distributing RemcosRAT:

HELO: li1640-29.members.linode.com
Sending IP: 172.104.60.29
From: Joyce Chen <moiz@skpzi.com>
Reply-To: moiz@skpzi.com
Subject: Purchase Order for #V20200 2020-07-06
Attachment: PO839-DOC83475348-834_pdf.zip (contains "PO839-DOC83475348-834_pdf.exe")

RemcosRAT C2:
109.169.89.116:2021

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

Remcos

Link:

https://www.capesandbox.com/analysis/24986/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Using the Windows Management Instrumentation requests

Creating a file in the %AppData% directory

Creating a file in the %temp% directory

Launching a process

Creating a process with a hidden window

Deleting a recently created file

Unauthorized injection to a recently created process

Sending a custom TCP request

Launching a service

Reading critical registry keys

Creating a file

Setting a global event handler for the keyboard

Stealing user critical data

Enabling autorun with Startup directory

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/ff3eb81477b36ac2239b623085961439379064929b20c4a69f72cb266adece83/

Threat name:

ByteCode-MSIL.Trojan.Rescoms

Status:

Malicious

First seen:

2020-07-13 03:03:23 UTC

AV detection:

25 of 29 (86.21%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=747lqfdxwnvmei43miyilfquhe3zazestmqmjju7olfsm2w6z2bq._file

Verdict:

malicious

Label(s):

remcos

emotet

hawkeyekeylogger

RemcosRAT

1b63db723d1957b88d6199fb5ea958f28de43333d2482a137c5b73b8be78a4a0

RemcosRAT

1e82507cd7b999f2ffa46f4591486b0ff45fb3fc664419279c15677f4a5a20d9

RemcosRAT

5056afb57576d4fc72369a0c11d434406085f7e62f773f3db7e297061cba717a

RemcosRAT

75ce329091d54aa2fcf6cd6f58704493e0f4ac878279c49db239140051341931

RemcosRAT

9d7e42c747de8d1f950c5fb27e4bee452d41140969f7a3af1da9e20e7fde6613

RemcosRAT

a4871c9770bdd0f9454e689411f3ffb3267913568b49f6457d681470770fa92e

RemcosRAT

aa5bb63c10ba7512a7f1612ca4b89768023be9fe17bcdf07665ec06640ca242d

RemcosRAT

d12fda0c8cf02474c474c6cbeba40591ba336a7fdf8d3f164493e5f6200f77ca

RemcosRAT

edc773741982183fbbca2bc01649bdd6904f8aac5392cec6cfcfeab881c1e727

RemcosRAT

+ 1'209 additional samples on MalwareBazaar

Result

Malware family:

remcos

Score:

10/10

Tags:

rat family:remcos spyware

Link:

https://tria.ge/reports/200713-fl42sgdvje/

Behaviour

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Creates scheduled task(s)

Suspicious use of SetThreadContext

Maps connected drives based on registry

Checks BIOS information in registry

Reads user/profile data of web browsers

Looks for VMWare Tools registry key

Looks for VirtualBox Guest Additions in registry

Remcos

Malware Config

C2 Extraction:

109.169.89.116:2021

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:	ach_RemcosRAT Create hunting rule
Author:	abuse.ch

Rule name:	win_remcos_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	autogenerated rule brought to you by yara-signator