MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d1836e6e0661938656d0d8883daa624f59b4a0885cd663be712bfa88a5ccea19. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d1836e6e0661938656d0d8883daa624f59b4a0885cd663be712bfa88a5ccea19
SHA3-384 hash: 540c20d86fcc93018e32e544c8ea645c0b4b3136ba79a3e0cf34f4b10f1c78ced195a8052a27a1eade48dd2649d23a10
SHA1 hash: aa99049bcb8caaac23c7c3a9488b47435ce524ec
MD5 hash: 1620224d6efdc7d009b64899a6a67626
humanhash: cardinal-juliet-montana-potato
File name:1.xla
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:50'688 bytes
First seen:2024-03-26 06:53:42 UTC
Last seen:2024-03-26 07:59:15 UTC
File type:Excel file xlsx
MIME type:application/vnd.ms-excel
ssdeep 768:fXyBP0IZ3ovboGfJlETRro0LPpeTQMjpHJDQ/QxLEC65:fX68OPwUTRrnp2hjFJDREC
TLSH T11033B01433AAD029C25399769DCCE2EB97127C11DE479B0F3190770F2E362C69697F4A
TrID 46.5% (.XLS) Microsoft Excel sheet (alternate) (56500/1/4)
26.7% (.XLS) Microsoft Excel sheet (32500/1/3)
20.1% (.XLS) Microsoft Excel sheet (alternate) (24500/1/2)
6.5% (.) Generic OLE2 / Multistream Compound (8000/1)
Reporter petrovic
Tags:RemcosRAT xlsx

Intelligence

File Origin
# of uploads :
2
# of downloads :
490
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
1620224d6efdc7d009b64899a6a67626.xla
Verdict:
Malicious activity
Analysis date:
2024-03-26 04:53:31 UTC
Tags:
opendir exploit cve-2017-11882 stegocampaign remcos rat remote stealer payload
Link:
https://app.any.run/tasks/ca7498c3-b41f-487b-91f5-289d4de484fd

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Changing an executable file
Using the Windows Management Instrumentation requests
DNS request
Launching a process
Creating a window
Result
Verdict:
Malicious
File Type:
Legacy Excel File with Macro
Link:
https://app.docguard.net/d1836e6e0661938656d0d8883daa624f59b4a0885cd663be712bfa88a5ccea19/results/dashboard
Payload URLs
URL
File name
http://qr-in.com/VztClRp
Embedded Ole
Behaviour
SuspiciousRTF detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
embedequation exploit macros masquerade shellcode sload
Link:
https://www.filescan.io/uploads/6602710b43b314c782c0eb98/reports/2dbae17d-1a25-42e5-96ac-9a951b2cb3c5/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/d1836e6e0661938656d0d8883daa624f59b4a0885cd663be712bfa88a5ccea19
Gathering data
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/d1836e6e0661938656d0d8883daa624f59b4a0885cd663be712bfa88a5ccea19
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl.evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/1415601
Signature
Antivirus detection for dropped file
Document exploit detected (process start blacklist hit)
Excel sheet contains many unusual embedded objects
Malicious sample detected (through community Yara rule)
Microsoft Office drops suspicious files
Multi AV Scanner detection for submitted file
Office drops RTF file
Office viewer loads remote template
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d1836e6e0661938656d0d8883daa624f59b4a0885cd663be712bfa88a5ccea19/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2gbw43qgmgjymvwq3ced3ktcj5m3jieiltlghptrfp5irjom5imq._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection persistence rat spyware stealer
Link:
https://tria.ge/reports/240326-hn7rpsge8x/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
Uses Volume Shadow Copy service COM API
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
Drops file in System32 directory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Abuses OpenXML format to download file from external location
Reads user/profile data of web browsers
Blocklisted process makes network request
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
107.172.31.178:2404
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/d1836e6e0661/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/d1836e6e0661938656d0d8883daa624f59b4a0885cd663be712bfa88a5ccea19

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:informational_win_ole_protected
Create hunting rule
Author:Jeff White (karttoon@gmail.com) @noottrak
Description:Identify OLE Project protection within documents.
Rule name:maldoc_OLE_file_magic_number
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:office_document_vba
Create hunting rule
Author:Jean-Philippe Teissier / @Jipe_
Description:Office document with embedded VBA
Reference:https://github.com/jipegit/

File information

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

Comments