MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 50f3db3dc8ef4ee255514877f5715d26d1838699cf80d057cd046c4ef1ffb6b2. 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: 15


Intelligence 15 IOCs YARA 26 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 50f3db3dc8ef4ee255514877f5715d26d1838699cf80d057cd046c4ef1ffb6b2
SHA3-384 hash: ae4a206a89d6af6b289c13263c7538eee539793bacb5e8386e381d8f161f02888de306da05e083e7c31514278dfbe132
SHA1 hash: 03af7641a8d3536a2062b2b4f3141cc9c477d30c
MD5 hash: ce84f5a033e62a52c6c9d09b1e3a05c8
humanhash: solar-shade-maryland-triple
File name:DBS Bank Payment _Swift_copy.bat
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'115'648 bytes
First seen:2023-08-14 07:03:52 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:/PeuWCXd1GNe9aepFenMQGsvZT+mQdYWEqUvpn5WN4iWkxr:N1GNewnMQGKU19UxwxP1
Threatray 2'442 similar samples on MalwareBazaar
TLSH T1F435367CFD227663CA9F0D734DD3D47686340E12775B88F400DBB2D6BAB866895102BA
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter abuse_ch
Tags:bat DBSBank exe RAT RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
297
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
DBS Bank Payment _Swift_copy.bat
Verdict:
Malicious activity
Analysis date:
2023-08-14 07:05:32 UTC
Tags:
rat remcos remote stealer
Link:
https://app.any.run/tasks/9742c6e4-8ac6-4610-b635-dddd87789581

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/442584/
Detection(s):
SecuriteInfo.com.Win32.RATX-gen.21310.13785.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Сreating synchronization primitives
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Reading critical registry keys
Creating a file in the %temp% directory
Stealing user critical data
Unauthorized injection to a system process
Enabling autorun by creating a file
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/50f3db3dc8ef4ee255514877f5715d26d1838699cf80d057cd046c4ef1ffb6b2
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.
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7b7c35bb-3a1b-4281-a73e-0640e1d50e78
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
spre.phis.troj.adwa.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1290814
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to inject code into remote processes
Contains functionality to modify clipboard data
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Drops PE files to the startup folder
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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
Powershell drops PE file
Sigma detected: Copy file to startup via Powershell
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 / registry access)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1290814 Sample: DBS_Bank_Payment__Swift_cop... Startdate: 14/08/2023 Architecture: WINDOWS Score: 100 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Multi AV Scanner detection for dropped file 2->47 49 9 other signatures 2->49 7 DBS_Bank_Payment__Swift_copy.bat.exe 3 2->7         started        10 anydesk.exe.exe 3 2->10         started        process3 signatures4 57 Bypasses PowerShell execution policy 7->57 59 Writes to foreign memory regions 7->59 61 Allocates memory in foreign processes 7->61 63 Injects a PE file into a foreign processes 7->63 12 RegAsm.exe 3 13 7->12         started        16 powershell.exe 13 7->16         started        19 powershell.exe 10->19         started        process5 dnsIp6 39 172.96.14.58, 49714, 49715, 9181 UNREAL-SERVERSUS Canada 12->39 41 geoplugin.net 178.237.33.50, 49716, 80 ATOM86-ASATOM86NL Netherlands 12->41 65 Contains functionality to bypass UAC (CMSTPLUA) 12->65 67 Contains functionality to steal Chrome passwords or cookies 12->67 69 Contains functionality to inject code into remote processes 12->69 75 4 other signatures 12->75 21 RegAsm.exe 1 12->21         started        24 RegAsm.exe 12->24         started        26 RegAsm.exe 12->26         started        32 28 other processes 12->32 35 C:\Users\user\AppData\...\anydesk.exe.exe, PE32 16->35 dropped 71 Drops PE files to the startup folder 16->71 73 Powershell drops PE file 16->73 28 conhost.exe 16->28         started        30 conhost.exe 19->30         started        file7 signatures8 process9 dnsIp10 51 Tries to steal Instant Messenger accounts or passwords 21->51 53 Tries to steal Mail credentials (via file / registry access) 21->53 37 192.168.2.1 unknown unknown 32->37 55 Tries to harvest and steal browser information (history, passwords, etc) 32->55 signatures11
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/50f3db3dc8ef4ee255514877f5715d26d1838699cf80d057cd046c4ef1ffb6b2/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-08-14 02:27:24 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
19 of 37 (51.35%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=kdz5wpoi55hoevkrjb37k4k5e3iyhbuzz6anav6narwe54p7w2za._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
3da90b636e39cd1f67e3542c60d813c6ff8152f7f740b3ef4ef086ef120836df
RemcosRAT
55b379ec8cd752f104605bdbd88048c1c3b49c328b393ba496494a118ef5ae16
RemcosRAT
5e95168687b15de3724b3c8240c0b40cdb61c75b440d11a7fa72c2b247c920ae
RemcosRAT
67c7c5ec03b9334d1a132f2b0fd7ddc99515ccdb2372aa3b16463ea34d09f060
RemcosRAT
a8ae7002d16df08878c864f8cd2f8722dfcb5950372f3b12c88f4e265f2eee40
RemcosRAT
b41e4528449d3fa1730eca98df0dc9fd9e3683ccfaedf1d72ee2af2899f18db8
RemcosRAT
e5ecc9b504121707ebc8782b5a81546ee41e7141d5554271030111c51cc2501f
RemcosRAT
e970fdbbcd35127388ad909820df33fbe5d0a7bd4b52ccde011c5782edfe03fc
RemcosRAT
ea903fc267537ec6bcb77791b967bf3b217202084e2ad9583f311f100a4de459
RemcosRAT
+ 2'432 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost rat spyware stealer
Link:
https://tria.ge/reports/230814-hvxv3sac85/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Drops startup file
Reads user/profile data of web browsers
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
172.96.14.58:9181
Unpacked files
SH256 hash:
bdceec3324fa62c33d28555841671143b721cb5ec1ba2bd2549cdbaaaff106b1
MD5 hash:
f2a8bd18e63b36afd8f8752735aec41b
SHA1 hash:
b7265b71e5bea47e2f2909c652553b8ffcd30eff
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/9e92cd20-5d7e-432a-9821-70c0cf3ea8b9/
Parent samples :
50f3db3dc8ef4ee255514877f5715d26d1838699cf80d057cd046c4ef1ffb6b2
5f08e0544700b1a67f1e534719862be6aa0d6974a8d96d5184170cb49a4dcd4e
SH256 hash:
4d05172da6ccb0810f299a31e5164c6ce85329e11fb7383165f4c1f2891d97b3
MD5 hash:
e76c8e30835579dfeb7fdeb9e0d9c63f
SHA1 hash:
5320c56a01c3234682dba3f75fd24e814afc0857
Link:
https://www.unpac.me/results/9e92cd20-5d7e-432a-9821-70c0cf3ea8b9/
SH256 hash:
198a65f6a3f780f1a022f030629e8561c31cc555a113f570a566d40d1ee56a05
MD5 hash:
9b3a1b5d3ffe9fb9db6c5aaefa1ae076
SHA1 hash:
0da05e4c72430da0d061a02cd6cf50c41e6bd83a
Link:
https://www.unpac.me/results/9e92cd20-5d7e-432a-9821-70c0cf3ea8b9/
SH256 hash:
50f3db3dc8ef4ee255514877f5715d26d1838699cf80d057cd046c4ef1ffb6b2
MD5 hash:
ce84f5a033e62a52c6c9d09b1e3a05c8
SHA1 hash:
03af7641a8d3536a2062b2b4f3141cc9c477d30c
Link:
https://www.unpac.me/results/9e92cd20-5d7e-432a-9821-70c0cf3ea8b9/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/50f3db3dc8ef/report/overview.html
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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_EXE_Packed_MPress
Create hunting rule
Author:ditekSHen
Description:Detects executables built or packed with MPress PE compressor
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:QbotStuff
Create hunting rule
Author:anonymous
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:TeslaCryptPackedMalware
Create hunting rule
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Windows_Trojan_Remcos_b296e965
Create hunting rule
Author:Elastic Security
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.
Rule name:yara_template
Create hunting rule

File information

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

Malspam

RemcosRAT

Executable exe 50f3db3dc8ef4ee255514877f5715d26d1838699cf80d057cd046c4ef1ffb6b2

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/442584/

Comments