MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 598fbc003f3775d3441846dec51317b6e81422a78c9a0d1b53353025d6953175. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 598fbc003f3775d3441846dec51317b6e81422a78c9a0d1b53353025d6953175
SHA3-384 hash: bd5d75d31acd074453aaccbf0f85b1ea3d1c8411e837b873a1517b75557c24b5062b16dcc0f933e48ae82be82a1a3049
SHA1 hash: b1d305325bdf240f374de2f10932db83290199ff
MD5 hash: 8c359e6a1e069354f3c7ceb5457157e6
humanhash: shade-princess-lima-lactose
File name:HTQ19-P0401-Q0539 NE-Q22940 GR2P5 TYPBLDG-NASER AL FERDAN.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:421'888 bytes
First seen:2021-02-18 14:37:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 49278d1d642197d284d20a863e464344 (3 x RemcosRAT)
ssdeep 6144:wqM0Y9PoTx4xOm6FylOUunSxIbshHuYxE17ACbPTvPCd7oPhUumf:MiW85S2boHuY217AyvPKUPm
Threatray 138 similar samples on MalwareBazaar
TLSH AC94124B77B95930E28685B06F58A2AD4B1BBC344624CA87F350399F3B77F924923317
Reporter abuse_ch
Tags:exe nVpn RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: sugiyamacreate.com
Sending IP: 140.227.20.146
From: Wasif Ahmed <yuko.s@sugiyamacreate.com>
Subject: FW: RE: Samrudh Pharma - Tarapur JASCO HPLC - OUTSTANDING PAYMENT 2/18/2021 1:08:51 p.m.
Attachment: HTQ19-P0401-Q0539 NE-Q22940 GR2P5 TYPBLDG-NASER AL FERDAN.zip (contains "HTQ19-P0401-Q0539 NE-Q22940 GR2P5 TYPBLDG-NASER AL FERDAN.exe")

RemcosRAT C2:
capriteam.ddns.net:1010 (79.134.225.62)

Pointing to nVpn:
% Information related to '79.134.225.0 - 79.134.225.127'

% Abuse contact for '79.134.225.0 - 79.134.225.127' is 'abuse@privacyfirst.sh'

inetnum: 79.134.225.0 - 79.134.225.127
netname: PRIVACYFIRST-EU
country: EU
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.
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
status: ASSIGNED PA
mnt-by: AF15-MNT
org: ORG-TPP6-RIPE
created: 2020-07-14T15:26:02Z
last-modified: 2020-07-14T15:31:06Z
source: RIPE

Intelligence

File Origin
# of uploads :
1
# of downloads :
123
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/117792/
Detection(s):
SecuriteInfo.com.Variant.Graftor.752414.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/611646
Signature
C2 URLs / IPs found in malware configuration
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
Delayed program exit found
Deletes itself after installation
Detected Remcos RAT
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
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
Multi AV Scanner detection for submitted file
Potential malicious icon found
Sigma detected: Remcos
Uses dynamic DNS services
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 354841 Sample: HTQ19-P0401-Q0539 NE-Q22940... Startdate: 18/02/2021 Architecture: WINDOWS Score: 100 45 Potential malicious icon found 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 14 other signatures 2->51 10 HTQ19-P0401-Q0539 NE-Q22940 GR2P5 TYPBLDG-NASER AL FERDAN.exe 13 2->10         started        13 remcos.exe 4 2->13         started        15 remcos.exe 4 2->15         started        process3 signatures4 55 Maps a DLL or memory area into another process 10->55 17 HTQ19-P0401-Q0539 NE-Q22940 GR2P5 TYPBLDG-NASER AL FERDAN.exe 4 5 10->17         started        20 remcos.exe 13->20         started        22 remcos.exe 15->22         started        process5 file6 37 C:\Users\user\AppData\Roaming\...\remcos.exe, PE32 17->37 dropped 39 C:\Users\user\...\remcos.exe:Zone.Identifier, ASCII 17->39 dropped 24 wscript.exe 1 17->24         started        process7 signatures8 53 Deletes itself after installation 24->53 27 cmd.exe 1 24->27         started        process9 process10 29 remcos.exe 4 27->29         started        32 conhost.exe 27->32         started        signatures11 57 Multi AV Scanner detection for dropped file 29->57 59 Detected unpacking (changes PE section rights) 29->59 61 Detected unpacking (overwrites its own PE header) 29->61 63 6 other signatures 29->63 34 remcos.exe 2 1 29->34         started        process12 dnsIp13 41 capriteam.ddns.net 79.134.225.62, 1010, 49745 FINK-TELECOM-SERVICESCH Switzerland 34->41 43 192.168.2.1 unknown unknown 34->43
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/598fbc003f3775d3441846dec51317b6e81422a78c9a0d1b53353025d6953175/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2021-02-18 12:40:39 UTC
AV detection:
16 of 47 (34.04%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=lgh3yab7g525grayi3pmkeyxw3ubiivhrsna2g2tguyclvuvgf2q._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
444dbf26e5c9f7309acd880592c76eb0cb588a33f8ed51ee735ab6d623d64256
RemcosRAT
593f9422a79559ab792b98a272ebd5db883b8a85f34de6a6f05f1c900b221dc5
RemcosRAT
6f0f5ac2a08c4746186a79f3afe48a614b1ed180ce830058805354bfa8cb1e8e
RemcosRAT
7499c45e246fe759ff4180bd864252689b1cbadc7825d007c7e25aa39c6a4450
RemcosRAT
7f2da313a75add2d2762a6f8ef8ca2828fb96661ab726b8aaad79ae5f89577c9
RemcosRAT
a8fe6d7fa624e8e96f71d3ff6375a012b44b51f06179feb7cef8c33fd6d38570
RemcosRAT
c0e6f7a4aa809d2b93ba137245380ada0a44ac5576935e13e165d02b1b937583
RemcosRAT
c120fd3e62a0ecd299625f3fbf622fb8a56b534828b6788fe766f1bc36ac7a68
RemcosRAT
c67a752275a99a0ba74a93e5a715a591ad9db9eb010759cdf41b1e7df980e84d
RemcosRAT
d98fd8189273e4f4fcbb8b1d5b32459b5d7adcd6eaff9efef0c32ace0fdfab0e
RemcosRAT
+ 128 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/210218-7jnc9s63f6/
Behaviour
Modifies registry class
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Deletes itself
Loads dropped DLL
Executes dropped EXE
Remcos
Unpacked files
SH256 hash:
2ae782019323887acb5658c65df583cf182b4fe5ec014b56196e7665f00403f7
MD5 hash:
e0ef2f37bccff03ce86826f0765b158a
SHA1 hash:
59441bd94b31e455c295add2d8d16928ecd60162
Detections:
win_remcos_g0
Create hunting rule
Link:
https://www.unpac.me/results/e072f228-46de-476b-8e71-3864c8023e77/
SH256 hash:
598fbc003f3775d3441846dec51317b6e81422a78c9a0d1b53353025d6953175
MD5 hash:
8c359e6a1e069354f3c7ceb5457157e6
SHA1 hash:
b1d305325bdf240f374de2f10932db83290199ff
Link:
https://www.unpac.me/results/e072f228-46de-476b-8e71-3864c8023e77/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.42
Link:
https://yomi.yoroi.company/submissions/598fbc003f3775d3441846dec51317b6e81422a78c9a0d1b53353025d6953175

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_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule

File information

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

Malspam

RemcosRAT

zip aa966e13129d97d07b3b2b8e08e3a85a4369a9e4e871b6b79f5debabca33308f

RemcosRAT

Executable exe 598fbc003f3775d3441846dec51317b6e81422a78c9a0d1b53353025d6953175

(this sample)

  
Dropped by
MD5 737b1925f1d948ace5796ba229057715
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/117792/
  
Dropped by
SHA256 aa966e13129d97d07b3b2b8e08e3a85a4369a9e4e871b6b79f5debabca33308f

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