MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3bc56f13add41beca4b7ff28ab7159588fd2ef3dc490b808b3c875dfa7c41fb4. 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: 13


Intelligence 13 IOCs YARA 16 File information Comments
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SHA256 hash: 3bc56f13add41beca4b7ff28ab7159588fd2ef3dc490b808b3c875dfa7c41fb4
SHA3-384 hash: e784f5baa4c634c6b288db9dd55d761d16558b569f3083870f041d580058fb2c107a230059855dc8dce7a50db1456c84
SHA1 hash: b33c4d33c804dc8735941f538fdfcd51d0801fe7
MD5 hash: 3b8e1c6c076572f64b7f8d110881244a
humanhash: aspen-carbon-johnny-bluebird
File name:BBVA Mexico _ Payment Advice MT103.bat
Download: download sample
Signature RemcosRAT
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File size:1'370'348 bytes
First seen:2024-02-03 16:21:25 UTC
Last seen:Never
File type:Batch (bat) bat
MIME type:text/plain
ssdeep 24576:0ylF6RL3tdXOac6cp95Tc9Nj97d/V+EKcEYyEpqUZnr:0ReHW9QxczNr
TLSH T15F5533556E7EEF6B0744E360762F3F552F772EC1F404C8BAAB81254E05A0B425ACF42A
Reporter abuse_ch
Tags:bat BBVA RAT RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
117
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
remcos
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ID:
1
File name:
3bc56f13add41beca4b7ff28ab7159588fd2ef3dc490b808b3c875dfa7c41fb4.bat
Verdict:
Malicious activity
Analysis date:
2024-02-03 16:42:56 UTC
Tags:
rat remcos remote
Link:
https://app.any.run/tasks/4c305945-269b-439e-9af9-53e2124ac552

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/474378/
Detection(s):
SecuriteInfo.com.BV.Obfuscated-W.1022.17375.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd lolbin masquerade stealer xcopy
Link:
https://www.filescan.io/uploads/65be682e4f733f8cc1be6f9c/reports/780bcbc1-fa8c-4b97-bb28-0cf745192b4e/overview
Verdict:
Malicious
Labled as:
BAT.Agent.K.Generic
Link:
https://www.hybrid-analysis.com/sample/3bc56f13add41beca4b7ff28ab7159588fd2ef3dc490b808b3c875dfa7c41fb4
Result
Verdict:
MALICIOUS
Details
Base64 Encoded Powershell Directives
Detected one or more base64 encoded Powershell directives.
Result
Threat name:
Remcos
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Detection:
malicious
Classification:
rans.phis.bank.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1386126
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to inject code into remote processes
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Delayed program exit found
Found large BAT file
Found malware configuration
Malicious encrypted Powershell command line found
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Powershell is started from unusual location (likely to bypass HIPS)
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
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)
Tries to steal Mail credentials (via file registry)
Very long command line found
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1386126 Sample: BBVA_Mexico___Payment_Advic... Startdate: 03/02/2024 Architecture: WINDOWS Score: 100 70 geoplugin.net 2->70 82 Found malware configuration 2->82 84 Malicious sample detected (through community Yara rule) 2->84 86 Antivirus detection for URL or domain 2->86 88 12 other signatures 2->88 9 cmd.exe 1 2->9         started        12 cmd.exe 1 2->12         started        signatures3 process4 signatures5 96 Malicious encrypted Powershell command line found 9->96 98 Very long command line found 9->98 14 cmd.exe 1 9->14         started        17 xcopy.exe 2 9->17         started        20 conhost.exe 9->20         started        22 cmd.exe 1 9->22         started        24 cmd.exe 1 12->24         started        26 conhost.exe 12->26         started        28 cmd.exe 1 12->28         started        30 xcopy.exe 1 12->30         started        process6 file7 100 Malicious encrypted Powershell command line found 14->100 102 Very long command line found 14->102 32 Ffxktbon.png 3 31 14->32         started        37 xcopy.exe 3 14->37         started        39 conhost.exe 14->39         started        47 3 other processes 14->47 60 C:\Users\user\AppData\Local\...\Ffxktbon.png, PE32 17->60 dropped 41 Ffxktbon.png 17 24->41         started        43 conhost.exe 24->43         started        45 cmd.exe 1 24->45         started        49 3 other processes 24->49 signatures8 process9 dnsIp10 66 172.96.14.30, 49710, 49712, 6871 UNREAL-SERVERSUS Canada 32->66 68 geoplugin.net 178.237.33.50, 49713, 80 ATOM86-ASATOM86NL Netherlands 32->68 62 C:\Users\user\AppData\...\Ffxktbon.bat, ASCII 32->62 dropped 72 Contains functionality to bypass UAC (CMSTPLUA) 32->72 74 Tries to steal Mail credentials (via file registry) 32->74 76 Contains functionalty to change the wallpaper 32->76 80 6 other signatures 32->80 51 Ffxktbon.png 32->51         started        54 Ffxktbon.png 32->54         started        56 Ffxktbon.png 14 32->56         started        58 2 other processes 32->58 64 C:\Users\user\AppData\...\Ffxktbon.png.bat, ASCII 37->64 dropped 78 Powershell is started from unusual location (likely to bypass HIPS) 41->78 file11 signatures12 process13 signatures14 90 Tries to steal Instant Messenger accounts or passwords 51->90 92 Tries to steal Mail credentials (via file / registry access) 51->92 94 Tries to harvest and steal browser information (history, passwords, etc) 54->94
Score:
99%
Verdict:
Malware
File Type:
ASCII
Link:
https://malprob.io/report/3bc56f13add41beca4b7ff28ab7159588fd2ef3dc490b808b3c875dfa7c41fb4
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3bc56f13add41beca4b7ff28ab7159588fd2ef3dc490b808b3c875dfa7c41fb4/
Threat name:
Script-BAT.Trojan.PSRunner
Create hunting rule
Status:
Malicious
First seen:
2024-02-02 18:38:16 UTC
File Type:
Text (Batch)
AV detection:
14 of 38 (36.84%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=hpcw6e5n2qn6zjfx74ukw4kzlch5f3z5ysilqcftzb257j6ed62a._file
Verdict:
malicious
Result
Malware family:
n/a
Score:
  9/10
Tags:
collection spyware stealer
Link:
https://tria.ge/reports/240203-tt8fzafgan/
Behaviour
Suspicious behavior: CmdExeWriteProcessMemorySpam
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Executes dropped EXE
Reads user/profile data of web browsers
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Malware family:
Remcos
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3bc56f13add4/report/overview.html
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/3bc56f13add41beca4b7ff28ab7159588fd2ef3dc490b808b3c875dfa7c41fb4

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:adonunix2
Create hunting rule
Author:Tim Brown @timb_machine
Description:AD on UNIX
Rule name:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:BlackGuard_Rule
Create hunting rule
Author:Jiho Kim
Description:Yara rule for BlackGuarad Stealer v1.0 - v3.0
Reference:https://www.virustotal.com/gui/file/67843d45ba538eca29c63c3259d697f7e2ba84a3da941295b9207cdb01c85b71/detection
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
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_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:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
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:win_remcos_w0
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:yarahub_win_remcos_rat_unpacked_aug_2023
Create hunting rule
Author:Matthew @ Embee_Research

File information

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

Malspam

RemcosRAT

Batch (bat) bat 3bc56f13add41beca4b7ff28ab7159588fd2ef3dc490b808b3c875dfa7c41fb4

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/474378/

Comments