MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6cdb03bc316fbf184d610d24d85ca86ec2269413ae8ae8ac87f296afb08dacea. 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: 10

Intelligence 10 IOCs YARA 9 File information Comments

SHA256 hash:	6cdb03bc316fbf184d610d24d85ca86ec2269413ae8ae8ac87f296afb08dacea
SHA3-384 hash:	1fc120d2e121768be57fab773fc04b76abac711a0a75f237a0f278129866161ba4c3b5ad4d89b3049b126633aaebc2d6
SHA1 hash:	edfd786403ebea26e612b0240b1ce980f170f245
MD5 hash:	ae8ba034c111e338ffc8cced610e23c7
humanhash:	washington-five-alaska-earth
File name:	ae8ba034c111e338ffc8cced610e23c7.exe
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	742'160 bytes
First seen:	2021-01-19 07:56:59 UTC
Last seen:	2021-01-19 11:56:12 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	5064414005440c05f6346292b90ee3f2 (7 x RemcosRAT, 3 x Loki, 2 x ModiLoader)
ssdeep	12288:oxVyof7rYaf81stsbFYooXiJ6N6BNUdQo:o7HJf81+sb3Wl6BNUmo
Threatray	1'567 similar samples on MalwareBazaar
TLSH	A8F48D66A2D44777C12B297D5C27DA65AC25BE0D3D28584E37E43C089F38372382E5AF
Reporter	abuse_ch
Tags:	exe nVpn RAT RemcosRAT

abuse_ch

RemcosRAT C2:
4sureme.ddns.net:4902 (185.140.53.202)

Pointing to nVpn:

% Information related to '185.140.53.0 - 185.140.53.255'

% Abuse contact for '185.140.53.0 - 185.140.53.255' is 'abuse@privacyfirst.sh'

inetnum: 185.140.53.0 - 185.140.53.255
remarks: This prefix is assigned to The PRIVACYFIRST Project, which
remarks: operates infrastructure jointly used by various VPN service
remarks: providers. We have a very strong focus on privacy and freedom.
remarks: In case of abuse, we encourage all international law enforcement
remarks: agencies to get in touch with our abuse contact. Due to the fact
remarks: that we keep no logs of user activities and only share data when
remarks: it is legally required under our jurisdiction, it is very unlikely
remarks: for a demand of user information to be successful. Still, that
remarks: should not deter you from reaching out.
netname: PRIVACYFIRST-EU
country: EU
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
org: ORG-TPP6-RIPE
status: ASSIGNED PA
mnt-by: PRIVACYFIRST-MNT
created: 2016-10-17T23:24:00Z
last-modified: 2020-11-06T23:02:44Z
source: RIPE

Intelligence

File Origin

# of uploads :

# of downloads :

171

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

Rsigned.exe

Verdict:

Malicious activity

Analysis date:

2021-01-19 07:17:27 UTC

Tags:

trojan rat remcos keylogger

Link:

https://app.any.run/tasks/640a2137-8600-4ce6-a385-708e33ebb7d6

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/112830/

Detection(s):

PUA.Win.Trojan.Generic-6629274-0

PUA.Win.Adware.Slugin-6803969-0

PUA.Win.Adware.Slugin-6840354-0

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Sending a UDP request

DNS request

Sending a custom TCP request

Creating a file

Deleting a recently created file

Launching a process

Creating a file in the %AppData% subdirectories

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

Unauthorized injection to a recently created process

Setting a global event handler for the keyboard

Sending a TCP request to an infection source

Result

Verdict:

MALICIOUS

Details

Windows PE Executable

Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.

Result

Threat name:

Remcos

Detection:

malicious

Classification:

rans.troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/584613

Signature

Allocates memory in foreign processes

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

Contains functionalty to change the wallpaper

Creates a thread in another existing process (thread injection)

Detected Remcos RAT

Injects a PE file into a foreign processes

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Uses dynamic DNS services

Writes to foreign memory regions

Yara detected Remcos RAT

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/6cdb03bc316fbf184d610d24d85ca86ec2269413ae8ae8ac87f296afb08dacea/

Threat name:

Win32.Trojan.Zusy

Status:

Malicious

First seen:

2021-01-19 07:57:04 UTC

AV detection:

16 of 46 (34.78%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=ntnqhpbrn67rqtlbbusnqxfin3bcnfatv2forleh6klk7menvtva._file

Verdict:

malicious

Label(s):

remcos

RemcosRAT

069f3de8e79399dcc2a0811f2b560b34339c31eed7a465b9c759bd25d5aea17f

RemcosRAT

0d233d14dd5333614b0521a887e1917ab36649531c8aaaf96a3660e72ac8c463

RemcosRAT

21691425c52cf7a77c0e3a65cc1c0c59cb026d5b76e78160ebb8a553f9bbe50c

RemcosRAT

60119cfc3cd6b63295c163fad7ab43949d62d5ed6bb024cd3054a2c64e8339c7

RemcosRAT

7ad833f9f06a7ebbad69a40515654c8a7a1b3346cf93214e2638e33901133409

RemcosRAT

7f53893a9ce40e497ef34ecfc9c4f493b9d5dd7f989b60ffa248cbf289a1505a

RemcosRAT

a4ab58cc18771c7141e96d45714b7aeb046ff7173ec5266f08da7b28d411744e

RemcosRAT

e98459447d40bb2a0917db99a3b9a99f22ee66234bfece9bba40f4fea3851201

RemcosRAT

ec84a8bda79a0fd968138e6eb7bed4da519a44b4f24f30eceae26606bf73d5f0

RemcosRAT

+ 1'557 additional samples on MalwareBazaar

Result

Malware family:

remcos

Score:

10/10

Tags:

family:modiloader family:remcos persistence rat

Link:

https://tria.ge/reports/210119-bl42cb4w32/

Behaviour

Modifies system certificate store

Script User-Agent

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Adds Run key to start application

Remcos

Malware Config

C2 Extraction:

4sureme.ddns.net:4902

Unpacked files

SH256 hash:

6cdb03bc316fbf184d610d24d85ca86ec2269413ae8ae8ac87f296afb08dacea

MD5 hash:

ae8ba034c111e338ffc8cced610e23c7

SHA1 hash:

edfd786403ebea26e612b0240b1ce980f170f245

Link:

https://www.unpac.me/results/a060cf71-5c29-4994-b3a5-f02f9ec47193/

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/6cdb03bc316fbf184d610d24d85ca86ec2269413ae8ae8ac87f296afb08dacea

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:	Chrome_stealer_bin_mem Create hunting rule
Author:	James_inthe_box
Description:	Chrome in files like avemaria

Rule name:	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer Create hunting rule
Author:	ditekSHen
Description:	detects Windows exceutables potentially bypassing UAC using eventvwr.exe

Rule name:	Keylog_bin_mem Create hunting rule
Author:	James_inthe_box
Description:	Contains Keylog

Rule name:	Parallax Create hunting rule
Author:	@bartblaze
Description:	Identifies Parallax RAT.

Rule name:	Remcos Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect Remcos in memory

Rule name:	remcos_rat Create hunting rule
Author:	jeFF0Falltrades

Rule name:	REMCOS_RAT_variants Create hunting rule

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