MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 321be1554d0c8aaf169078b16f29bac61f923485fcc124499a6886c4ecadb552. 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: 11


Intelligence 11 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 321be1554d0c8aaf169078b16f29bac61f923485fcc124499a6886c4ecadb552
SHA3-384 hash: 2d12d30e1a7c7dc5cbc3dd8090f2e8b8461666bcec201f3a4d4272ed62fa06280033cc1789c358c787bea17d4f283cb4
SHA1 hash: f77f4c23d6987fc4a9edbf47eb4219d591f314c9
MD5 hash: e14fc3accfaa18fee9a5c60689768864
humanhash: wolfram-lake-juliet-black
File name:Quotation Request.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:510'464 bytes
First seen:2021-01-18 16:27:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 3f85ebb67bac58f72de974a91d40889a (5 x Formbook, 3 x RemcosRAT, 2 x AgentTesla)
ssdeep 12288:+8WvAMYGY5RFNBeU7vgTOzHtCetcjE8yb0m:+8W4T17vgKz3GjEGm
Threatray 1'415 similar samples on MalwareBazaar
TLSH D1B49D21B880C032C073293549B9E2B2097EA5305F655ACFABD819B95FB41D1B73A77F
Reporter abuse_ch
Tags:exe nVpn RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: megahill-myanmar.net
Sending IP: 64.188.27.72
From: nyizaw@megahill-myanmar.net
Subject: Introduction/ Quotation Request
Attachment: Quotation Request.iso (contains "Quotation Request.exe")

RemcosRAT C2:
chhjvhvkjbhliiuyuj.duckdns.org:20909 (185.244.30.171)

Pointing to nVpn:

% Information related to '185.244.30.0 - 185.244.30.255'

% Abuse contact for '185.244.30.0 - 185.244.30.255' is 'abuse@privacyfirst.sh'

inetnum: 185.244.30.0 - 185.244.30.255
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-HU
country: HU
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
org: ORG-TPP6-RIPE
status: ASSIGNED PA
mnt-by: PRIVACYFIRST-MNT
created: 2019-10-29T14:10:27Z
last-modified: 2020-10-07T21:39:48Z
source: RIPE

Intelligence

File Origin
# of uploads :
1
# of downloads :
135
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Quotation Request.exe
Verdict:
Malicious activity
Analysis date:
2021-01-18 16:31:50 UTC
Tags:
rat remcos keylogger
Link:
https://app.any.run/tasks/9631994c-0fcf-4826-959b-ba8ca42d6e29

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/112599/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a file in the %temp% subdirectories
Creating a file
Running batch commands
Creating a process with a hidden window
Launching a process
Unauthorized injection to a recently created process
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Creating a window
Deleting a recently created file
DNS request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Setting a global event handler for the keyboard
Connection attempt to an infection source
Enabling autorun by creating a file
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/584015
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
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Sigma detected: Remcos
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 341047 Sample: Quotation Request.exe Startdate: 18/01/2021 Architecture: WINDOWS Score: 100 52 chhjvhvkjbhliiuyuj.duckdns.org 2->52 58 Malicious sample detected (through community Yara rule) 2->58 60 Detected Remcos RAT 2->60 62 Yara detected Remcos RAT 2->62 64 10 other signatures 2->64 11 Quotation Request.exe 4 2->11         started        15 remcos.exe 1 2->15         started        17 remcos.exe 1 2->17         started        signatures3 process4 file5 48 C:\Users\user\AppData\Local\Temp\...\file.exe, PE32 11->48 dropped 50 C:\...\c21b36ce778f4ca1b76d04fcd74cc727.xml, XML 11->50 dropped 74 Maps a DLL or memory area into another process 11->74 19 Quotation Request.exe 4 5 11->19         started        22 cmd.exe 1 11->22         started        24 remcos.exe 15->24         started        26 remcos.exe 17->26         started        signatures6 process7 file8 44 C:\Users\user\AppData\Roaming\...\remcos.exe, PE32 19->44 dropped 46 C:\Users\user\...\remcos.exe:Zone.Identifier, ASCII 19->46 dropped 28 wscript.exe 1 19->28         started        30 conhost.exe 22->30         started        32 schtasks.exe 1 22->32         started        process9 process10 34 cmd.exe 1 28->34         started        process11 36 remcos.exe 1 34->36         started        39 conhost.exe 34->39         started        signatures12 66 Multi AV Scanner detection for dropped file 36->66 68 Machine Learning detection for dropped file 36->68 70 Contains functionality to steal Chrome passwords or cookies 36->70 72 3 other signatures 36->72 41 remcos.exe 2 3 36->41         started        process13 dnsIp14 54 chhjvhvkjbhliiuyuj.duckdns.org 185.244.30.171, 20909, 49731, 49732 DAVID_CRAIGGG Netherlands 41->54 56 192.168.2.1 unknown unknown 41->56
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/321be1554d0c8aaf169078b16f29bac61f923485fcc124499a6886c4ecadb552/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2021-01-18 16:28:06 UTC
AV detection:
21 of 46 (45.65%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=gin6cvknbsfk6fuqpcyw6kn2yypzenef7tasism2ncdmj3fnwvja._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
00b65900131d5d5cac9d48c65ff2e53677418d7c50f0c09480af43e80845bef3
RemcosRAT
4f718a40662228b1b5efca4664eb07f6d1918b62bc8b29598410d1dc5bb76c70
RemcosRAT
9502b93f782ae19b93623605f74ebc2ee277a453ecd2286ef990d62c28a601e6
RemcosRAT
98d8bbdf43367821e74fd0c26f5bdda07fe9a750476cce1bb0df88c5aa18b745
RemcosRAT
b67361c9d7c2bcbe7e94b698f4d5abd1e6ffd96429d2c66dcfd92a573303e4f0
RemcosRAT
b704ceb41947acea7cb7c2d1a5b3de33b25120728fec16b4d8b35fbaa05e5afb
RemcosRAT
bc8513a74ddfc1a9a78fbdbf39d90a61d59819dfb116846daf730693622c3c69
RemcosRAT
bf0e82358921791e16998b942e600a500a967f6e5c5b034a675af7e49663a34f
RemcosRAT
ccd9176d26caf90647653816162ea4622ae24e253b7da139fdfacd74a555a8a1
RemcosRAT
fa5850a0ba8809631d4e3f5a3f8cafa133b3d6ae37088eeb934ec13d1bc9f368
RemcosRAT
+ 1'405 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/210118-v9qyv49d1n/
Behaviour
Creates scheduled task(s)
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies registry class
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
chhjvhvkjbhliiuyuj.duckdns.org:20909
Unpacked files
SH256 hash:
321be1554d0c8aaf169078b16f29bac61f923485fcc124499a6886c4ecadb552
MD5 hash:
e14fc3accfaa18fee9a5c60689768864
SHA1 hash:
f77f4c23d6987fc4a9edbf47eb4219d591f314c9
Link:
https://www.unpac.me/results/1a013c9e-148d-4297-994c-1036c0c49d54/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/321be1554d0c8aaf169078b16f29bac61f923485fcc124499a6886c4ecadb552

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

File information

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

Malspam

RemcosRAT

iso df6654a0fbcd16377de6f1effe35a2dc2c0a9571001e27b6fcd99e9b87852efd

RemcosRAT

Executable exe 321be1554d0c8aaf169078b16f29bac61f923485fcc124499a6886c4ecadb552

(this sample)

  
Dropped by
MD5 530ae4a706365ed8c99808c24de4943c
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 df6654a0fbcd16377de6f1effe35a2dc2c0a9571001e27b6fcd99e9b87852efd
Cape
Cape
https://www.capesandbox.com/analysis/112599/

Comments