MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9d3eddc1a411d1749efa3f08827529ab80356d515cb5321ed5ea7cca0dedca74. 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: 9d3eddc1a411d1749efa3f08827529ab80356d515cb5321ed5ea7cca0dedca74
SHA3-384 hash: e396919703d93e109d035e3a82c09158c1ff9a5847d9aefb52074e8f58a4e06d545f3acec072c73d25c638a5860f21f3
SHA1 hash: 2bf1b967c0b9ff0c2478441a9294405afb29ec6e
MD5 hash: 66942e778b34428234e0a47a0e9c444e
humanhash: pip-chicken-four-sweet
File name:PO - 2021-000511.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:337'920 bytes
First seen:2021-01-19 06:37:09 UTC
Last seen:2021-01-19 09:21:04 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 616765ca1e3c367f5f3771d38d13b610 (7 x Loki, 4 x RemcosRAT, 4 x AgentTesla)
ssdeep 6144:73CDRM9sIkrdnvigUmCeymNZSN7YChCTeMKqKBAaq9ah:bf9HmdviKCeG0ChseMKqC8w
Threatray 1'731 similar samples on MalwareBazaar
TLSH 6E74CF31B1C1D431C07302B54274E7A249BE7E325B664CDBAFE99D9D1AB80E1A336763
Reporter abuse_ch
Tags:exe nVpn RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: mail.rupa.co.in
Sending IP: 103.253.125.72
From: Contact <contact@rupa.co.in>
Subject: PO - 2021-000511
Attachment: PO - 2021-000511.iso (contains "PO - 2021-000511.exe")

RemcosRAT C2:
nkosarevaocs.duckdns.org:7266 (185.244.30.69)

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 :
2
# of downloads :
138
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO - 2021-000511.exe
Verdict:
Malicious activity
Analysis date:
2021-01-19 06:39:54 UTC
Tags:
rat remcos keylogger
Link:
https://app.any.run/tasks/620be15d-2821-40f4-89c2-602352b7f6b5

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/112728/
Detection(s):
PUA.Win.Adware.Bang5mai-6804572-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Creating a file
Running batch commands
Creating a process with a hidden window
Launching a process
Sending a UDP request
Enabling autorun by creating a file
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/584483
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
Detected unpacking (creates a PE file in dynamic memory)
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)
Maps a DLL or memory area into another process
Sigma detected: Remcos
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)
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 signatures2 2 Behavior Graph ID: 341272 Sample: PO - 2021-000511.exe Startdate: 19/01/2021 Architecture: WINDOWS Score: 100 75 Malicious sample detected (through community Yara rule) 2->75 77 Detected Remcos RAT 2->77 79 Yara detected Remcos RAT 2->79 81 9 other signatures 2->81 12 PO - 2021-000511.exe 4 2->12         started        16 remcos.exe 1 2->16         started        18 remcos.exe 1 2->18         started        process3 file4 65 C:\Users\user\AppData\Local\Temp\...\file.exe, PE32 12->65 dropped 67 C:\...\c2dda0561025401989fafe74650217e2.xml, XML 12->67 dropped 99 Maps a DLL or memory area into another process 12->99 20 PO - 2021-000511.exe 4 5 12->20         started        23 cmd.exe 1 12->23         started        25 remcos.exe 16->25         started        27 remcos.exe 18->27         started        signatures5 process6 file7 61 C:\Users\user\AppData\Roaming\...\remcos.exe, PE32 20->61 dropped 63 C:\Users\user\...\remcos.exe:Zone.Identifier, ASCII 20->63 dropped 29 wscript.exe 1 20->29         started        31 conhost.exe 23->31         started        33 schtasks.exe 1 23->33         started        process8 process9 35 cmd.exe 1 29->35         started        process10 37 remcos.exe 1 35->37         started        40 conhost.exe 35->40         started        signatures11 89 Detected unpacking (creates a PE file in dynamic memory) 37->89 91 Machine Learning detection for dropped file 37->91 93 Contains functionality to steal Chrome passwords or cookies 37->93 95 2 other signatures 37->95 42 remcos.exe 1 37->42         started        45 remcos.exe 37->45         started        process12 signatures13 97 Maps a DLL or memory area into another process 42->97 47 remcos.exe 2 3 42->47         started        process14 dnsIp15 71 nkosarevaocs.duckdns.org 185.244.30.69, 49724, 49725, 49734 DAVID_CRAIGGG Netherlands 47->71 73 Injects a PE file into a foreign processes 47->73 51 remcos.exe 47->51         started        54 remcos.exe 1 47->54         started        56 remcos.exe 47->56         started        58 6 other processes 47->58 signatures16 process17 dnsIp18 83 Tries to steal Instant Messenger accounts or passwords 51->83 85 Tries to steal Mail credentials (via file access) 51->85 69 192.168.2.1 unknown unknown 58->69 87 Tries to harvest and steal browser information (history, passwords, etc) 58->87 signatures19
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/9d3eddc1a411d1749efa3f08827529ab80356d515cb5321ed5ea7cca0dedca74/
Threat name:
Win32.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2021-01-19 06:38:05 UTC
AV detection:
19 of 46 (41.30%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=tu7n3qnechixjhx2h4eie5jjvoadk3krls2tehwv5j6mudpnzj2a._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
00b65900131d5d5cac9d48c65ff2e53677418d7c50f0c09480af43e80845bef3
RemcosRAT
1a6757ed0fa8dfc6a0ecc4dcfecc7dacb2b4ff435c15eefeb9edde8b913e1811
RemcosRAT
321be1554d0c8aaf169078b16f29bac61f923485fcc124499a6886c4ecadb552
RemcosRAT
605834c1fd1e1ad6e039fa17f7de298663ab902e84a70947a15ef18d088879e8
RemcosRAT
6a9beed2218eb04e929a87b8e1e1fb1f5d3197136c96b434e82f9dd62e71233c
RemcosRAT
aea8b826c919840c0757bde7e31b915fda0439bd28b10418479aa17c53f91e12
RemcosRAT
b67361c9d7c2bcbe7e94b698f4d5abd1e6ffd96429d2c66dcfd92a573303e4f0
RemcosRAT
b72df5535e69fb7ea6dd6638059825c267e176baa3213a2f513d76d2455f1776
RemcosRAT
bf0e82358921791e16998b942e600a500a967f6e5c5b034a675af7e49663a34f
RemcosRAT
ccd9176d26caf90647653816162ea4622ae24e253b7da139fdfacd74a555a8a1
RemcosRAT
+ 1'721 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat spyware
Link:
https://tria.ge/reports/210119-dgdw3rkp9j/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies registry class
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
nkosarevaocs.duckdns.org:7266
Unpacked files
SH256 hash:
b54c3a2820e698df4706be3bf51fb4d9fa8a8e899ebe0fd710b930750c7fdf36
MD5 hash:
9dc52c01ca8e99f6c035af5f1cc527fe
SHA1 hash:
95f3eb53705ea21735588700ef36bd7ff28aea65
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/4ed6073a-d9df-45d6-b421-aae16ade3b32/
Parent samples :
9d3eddc1a411d1749efa3f08827529ab80356d515cb5321ed5ea7cca0dedca74
af31df0399c0a4656499be1101463a7c87761dd26dda053503feed9218e47e59
SH256 hash:
9d3eddc1a411d1749efa3f08827529ab80356d515cb5321ed5ea7cca0dedca74
MD5 hash:
66942e778b34428234e0a47a0e9c444e
SHA1 hash:
2bf1b967c0b9ff0c2478441a9294405afb29ec6e
Link:
https://www.unpac.me/results/4ed6073a-d9df-45d6-b421-aae16ade3b32/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/9d3eddc1a411d1749efa3f08827529ab80356d515cb5321ed5ea7cca0dedca74

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 469f76b3f775c120244dfaf901bf8cbec03c65d5e00bf0692a714d242ed58d38

RemcosRAT

Executable exe 9d3eddc1a411d1749efa3f08827529ab80356d515cb5321ed5ea7cca0dedca74

(this sample)

  
Dropped by
MD5 da9b7902e2900539a8fcbe1be6d84e34
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 469f76b3f775c120244dfaf901bf8cbec03c65d5e00bf0692a714d242ed58d38
Cape
Cape
https://www.capesandbox.com/analysis/112728/

Comments