MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9930543939f97818319ed031530d9e084994331aa4b06a304faeb321bbcc63db. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments

SHA256 hash: 9930543939f97818319ed031530d9e084994331aa4b06a304faeb321bbcc63db
SHA3-384 hash: 1ae7350664b2832325b8053af8cd62f63dfb47edb6647bd1140889ab8837283ef81b321f9afd5573e20eae661f1ac8e5
SHA1 hash: a440f165489f2a2b91913b6eff977f6b417cb25a
MD5 hash: 35c1a1c246473ea17c2acf5b6fb0ab7e
humanhash: indigo-massachusetts-robert-romeo
File name:RFQ Order - Mediform S.A August_pdf.exe
Download: download sample
Signature RemcosRAT
File size:448'000 bytes
First seen:2020-08-17 06:07:05 UTC
Last seen:2020-08-17 07:00:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:Ft/KagtvxRtkmB+qHUfZoJBop9XVe8fIChytcPeWY1OzZhJn0fhZmNK2EWE5fE:3/xQ5/+q2oJB+90IIRiG7EzvYmzFEu
Threatray 685 similar samples on MalwareBazaar
TLSH 3F940223F690D416C07E2A7A8D59235403F476C67851FF3EFDD822AEA9943C68642FC6
Reporter abuse_ch
Tags:exe nVpn RAT RemcosRAT SendGrid


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: o1.hv1le.shared.sendgrid.net
Sending IP: 167.89.100.171
From: Stefania Pitta <leekk91@impt.kr>
Reply-To: leekk91@impt.kr
Subject: RFQ: Order - Mediform S.A
Attachment: RFQ Order - Mediform S.A August_pdf.7z (contains "RFQ Order - Mediform S.A August_pdf.exe")

RemcosRAT C2:
194.5.97.70:2404

Hosted on nVpn:

% Information related to '194.5.97.0 - 194.5.97.255'

% Abuse contact for '194.5.97.0 - 194.5.97.255' is 'abuse@kgb-vpn.org'

inetnum: 194.5.97.0 - 194.5.97.255
netname: NET-NINAZU
remarks: ------------------------------------------
remarks: * This network is used for a VPN service.
remarks: * No logs are stored in any shape or form.
remarks: ------------------------------------------
country: EU
admin-c: NVS100-RIPE
tech-c: NVS100-RIPE
org: ORG-NVS2-RIPE
mnt-by: NINAZU-MNT
status: SUB-ALLOCATED PA
created: 2018-07-23T09:31:45Z
last-modified: 2020-08-02T13:13:48Z
source: RIPE

Intelligence


File Origin
# of uploads :
2
# of downloads :
75
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
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
Enabling autorun by creating a file
Result
Threat name:
Detection:
malicious
Classification:
rans.phis.troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
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
Detected Remcos RAT
Detected unpacking (creates a PE file in dynamic memory)
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
Malicious sample detected (through community Yara rule)
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file access)
Tries to steal Mail credentials (via file registry)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 268536 Sample: RFQ Order - Mediform S.A Au... Startdate: 17/08/2020 Architecture: WINDOWS Score: 100 43 Malicious sample detected (through community Yara rule) 2->43 45 Sigma detected: Scheduled temp file as task from temp location 2->45 47 Detected Remcos RAT 2->47 49 15 other signatures 2->49 7 RFQ Order - Mediform S.A August_pdf.exe 7 2->7         started        process3 file4 27 C:\Users\user\AppData\Roaming\CaZmrds.exe, PE32 7->27 dropped 29 C:\Users\user\...\CaZmrds.exe:Zone.Identifier, ASCII 7->29 dropped 31 C:\Users\user\AppData\Local\...\tmpBAF4.tmp, XML 7->31 dropped 33 RFQ Order - Medifo... August_pdf.exe.log, ASCII 7->33 dropped 51 Injects a PE file into a foreign processes 7->51 11 RFQ Order - Mediform S.A August_pdf.exe 3 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 37 194.5.97.70, 2404, 49742, 49743 DANILENKODE Netherlands 11->37 53 Tries to harvest and steal browser information (history, passwords, etc) 11->53 55 Injects a PE file into a foreign processes 11->55 17 RFQ Order - Mediform S.A August_pdf.exe 1 11->17         started        20 RFQ Order - Mediform S.A August_pdf.exe 1 11->20         started        22 RFQ Order - Mediform S.A August_pdf.exe 13 11->22         started        25 conhost.exe 15->25         started        signatures8 process9 dnsIp10 39 Tries to steal Instant Messenger accounts or passwords 17->39 41 Tries to steal Mail credentials (via file access) 17->41 35 192.168.2.1 unknown unknown 22->35 signatures11
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Status:
Malicious
First seen:
2020-08-17 06:09:05 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
rat family:remcos spyware
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Remcos
Malware Config
C2 Extraction:
194.5.97.70:2404
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
Author:abuse.ch
Rule name:win_remcos_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

RemcosRAT

Executable exe 9930543939f97818319ed031530d9e084994331aa4b06a304faeb321bbcc63db

(this sample)

  
Delivery method
Distributed via e-mail attachment

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