MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8641910c61f213b8f3643405387fcb92161e3e11fde5f2546b58dce702d702a6. 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:	8641910c61f213b8f3643405387fcb92161e3e11fde5f2546b58dce702d702a6
SHA3-384 hash:	d7310f216e2058a38d0530bc0acef56ea6636ca3c87c0e277a20e618fc571587c8e8567d52bec0d42251b236384b0518
SHA1 hash:	70eb055574e3ae5f1b17a3cf171fadb5a9d39e19
MD5 hash:	d5399968edb8c3c6fb0ffabe1d74c2cd
humanhash:	illinois-red-network-lima
File name:	Solicitud.exe
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	258'637 bytes
First seen:	2020-08-14 15:35:51 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	7c2c71dfce9a27650634dc8b1ca03bf0 (160 x Loki, 58 x Formbook, 55 x Adware.Generic)
ssdeep	6144:2PCganNmz7Bn7AMjQXHVILJoISE23OnswPMM60pVQz:Ean4zln7AMqHVxNEYOnEeVM
Threatray	247 similar samples on MalwareBazaar
TLSH	C84413652760F4FBDB66267054B52E1B2FFFD3090354BA0B9B1CAE427D221C66F0E252
Reporter	abuse_ch
Tags:	exe Outlook RAT RemcosRAT

abuse_ch

Malspam distributing RemcosRAT:

HELO: NAM10-BN7-obe.outbound.protection.outlook.com
Sending IP: 40.92.40.36
From: VaNeSsA C. <maireces@hotmail.com>
Subject: DOCUMENTO ADJUNTO
Attachment: Solicitud.uu (contains "Solicitud.exe")

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Gathering data

Detection(s):

PUA.Win.Downloader.Soft32downloader-6691270-0

PUA.Win.Adware.Browserio-6725861-0

SecuriteInfo.com.Artemis162931E90DCF.4593.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a file in the %temp% directory

Creating a file

Launching a process

Sending a UDP request

Launching cmd.exe command interpreter

Transferring files using the Background Intelligent Transfer Service (BITS)

Creating a file in the %AppData% subdirectories

Enabling the 'hidden' option for recently created files

Moving a file to the %AppData% subdirectory

DNS request

Sending a custom TCP request

Unauthorized injection to a system process

Setting a global event handler for the keyboard

Enabling autorun by creating a file

Result

Threat name:

Remcos

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/430266

Signature

Contains functionality to capture and log keystrokes

Contains functionality to inject code into remote processes

Contains functionality to steal Chrome passwords or cookies

Contains functionality to steal Firefox passwords or cookies

Detected Remcos RAT

Hijacks the control flow in another process

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Maps a DLL or memory area into another process

Overwrites code with unconditional jumps - possibly settings hooks in foreign process

Sigma detected: Remcos

Uses dynamic DNS services

Yara detected Remcos RAT

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/8641910c61f213b8f3643405387fcb92161e3e11fde5f2546b58dce702d702a6/

Threat name:

Win32.Backdoor.Bladabhindi

Status:

Malicious

First seen:

2020-08-14 15:37:05 UTC

AV detection:

27 of 29 (93.10%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=qzazcddb6ij3r43egqctq76lsilb4pqr7xs7evdlldoooawxakta._file

Verdict:

malicious

RemcosRAT

46ceaed6d9f20fc2b5d51a63957ea0a5772f33ac4d58b1024cce8eb1c207567e

RemcosRAT

5c63c2887891a56e0465251c8112ce7a07fc70e782dbc2e80f45f670294d4285

RemcosRAT

5d9004bb38a2e4c6ee1528f75e8453e778d9f39a3e7d9f02ee7821eae65cf886

RemcosRAT

5e23eed104a5bd67c8ae3abe1f3554abac8500bf9f916992df36246b06f14419

RemcosRAT

72ec3dcd3d7a197c45c66605330968f86044d6a2ec37bf843e33b7f4668781f9

RemcosRAT

7ef7ff0660d406b237fd3253738d60a294c0273ca1436cf9ba87d5b2ea8d62d8

RemcosRAT

9ea8141b737b1dd5d56c800d4f84048014d83489f0fb3a78e42076a81186e30d

RemcosRAT

c2f42cfcfafad77546d57cbfde6a6f4c1c75d684a81304d1ec901285b1873bd3

RemcosRAT

fad58c442302c02a2750bc532c0c4705f6193e8cabb2acbc88181cdd328d6145

RemcosRAT

+ 237 additional samples on MalwareBazaar

Result

Malware family:

n/a

Score:

1/10

Tags:

n/a

Link:

https://tria.ge/reports/200814-yes5slf73x/

Behaviour

NSIS installer

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

Threat name:

NJRat

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/8641910c61f213b8f3643405387fcb92161e3e11fde5f2546b58dce702d702a6

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