MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a7aca87179f51e229aa9a2f13bb8ab76750c8092579cc7b4d0cbc40235cdde27. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a7aca87179f51e229aa9a2f13bb8ab76750c8092579cc7b4d0cbc40235cdde27
SHA3-384 hash: cab7726f2c7877d2ab594487f9290e527ad77ebf52293fd07858b77f0bfea30ad9d84c8afcd81ef389278669c4eb1047
SHA1 hash: 5c5197705c3fe56c4cd49b639140446c48700c7e
MD5 hash: 4cd0efe60c932a3ff25a976386cf9bc9
humanhash: illinois-emma-stairway-tennis
File name:Повістка до суду.doc
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:691'200 bytes
First seen:2023-11-30 23:11:42 UTC
Last seen:Never
File type:Word file doc
MIME type:application/msword
ssdeep 12288:RBZRo5+bpfzUL6/1fnXh+vNYj1p0fQ20HG7mQ7S1RMZP:BYL6pXhMWiyGiQ7URM
TLSH T18BE402C0B2439B0AE5D1D6B21C87C3E0985EDF84F660C91F745C77256F3BA5ABC5822A
TrID 52.6% (.DOC) Microsoft Word document (30000/1/2)
33.3% (.DOC) Microsoft Word document (old ver.) (19000/1/2)
14.0% (.) Generic OLE2 / Multistream Compound (8000/1)
Reporter smica83
Tags:95.214.26.199 doc RemcosRAT UAC-0050 UKR

Intelligence

File Origin
# of uploads :
1
# of downloads :
330
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Повістка в суд-вихідний 8121417414 від 30.11.2023.msg
Verdict:
Suspicious activity
Analysis date:
2023-11-30 08:50:35 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/52f2f49f-f51f-4981-8d0f-33632ee0b902

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

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Sending a custom TCP request
Creating a file
Searching for synchronization primitives
Creating a process with a hidden window
Launching a process
Modifying a system executable file
Sending a TCP request to an infection source
Unauthorized injection to a recently created process
Launching a process by exploiting the app vulnerability
Sending a TCP request to an infection source by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
Legacy Word File with Macro
Link:
https://app.docguard.net/a7aca87179f51e229aa9a2f13bb8ab76750c8092579cc7b4d0cbc40235cdde27/results/dashboard
Payload URLs
URL
File name
http://www.iec.ch
Data
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Labled as:
Msoffice/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/a7aca87179f51e229aa9a2f13bb8ab76750c8092579cc7b4d0cbc40235cdde27
Label:
Malicious
Suspicious Score:
9.7/10
Score Malicious:
98%
Score Benign:
2%
Link:
https://www.malware.ai/gui/files/?id=0a397cc9-1d2d-4e8e-92dd-99d0bedf321a
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/a7aca87179f51e229aa9a2f13bb8ab76750c8092579cc7b4d0cbc40235cdde27
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad.rans.phis
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1350417
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Document contains an embedded VBA macro which may execute processes
Document contains an embedded VBA macro with suspicious strings
Document exploit detected (process start blacklist hit)
Document Viewer accesses SMB path (likely to steal NTLM hashes or to download payload)
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Opens network shares
Suspicious powershell command line found
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1350417 Sample: #U041f#U043e#U0432#U0456#U0... Startdate: 30/11/2023 Architecture: WINDOWS Score: 100 32 Found malware configuration 2->32 34 Malicious sample detected (through community Yara rule) 2->34 36 Antivirus detection for dropped file 2->36 38 10 other signatures 2->38 7 WINWORD.EXE 292 24 2->7         started        11 explorer.exe 8 4 2->11         started        13 explorer.exe 7 30 2->13         started        process3 file4 30 C:\Users\user\...\~DF1ACC6E29A57347E1.TMP, Composite 7->30 dropped 40 Suspicious powershell command line found 7->40 42 Opens network shares 7->42 44 Document Viewer accesses SMB path (likely to steal NTLM hashes or to download payload) 7->44 15 scandoc.exe 1 6 7->15         started        18 explorer.exe 7->18         started        20 powershell.exe 4 7->20         started        signatures5 process6 signatures7 46 Opens network shares 15->46 22 scandoc.exe 15->22         started        24 scandoc.exe 15->24         started        26 scandoc.exe 15->26         started        28 scandoc.exe 15->28         started        process8
Score:
0%
Verdict:
Benign
File Type:
DOC
Link:
https://malprob.io/report/a7aca87179f51e229aa9a2f13bb8ab76750c8092579cc7b4d0cbc40235cdde27
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a7aca87179f51e229aa9a2f13bb8ab76750c8092579cc7b4d0cbc40235cdde27/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-11-30 09:07:58 UTC
File Type:
Document
Extracted files:
23
AV detection:
15 of 23 (65.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=u6wkq4lz6upcfgvjulytxofloz2qzaesk6ompngqzpcaenon3ytq._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:rmc macro macro_on_action persistence rat
Link:
https://tria.ge/reports/231130-26wxpsce93/
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Suspicious use of SetThreadContext
Adds Run key to start application
Enumerates connected drives
Executes dropped EXE
Modifies Installed Components in the registry
Process spawned unexpected child process
Remcos
Malware Config
C2 Extraction:
95.214.26.199:80
95.214.26.199:465
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a7aca87179f5/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/a7aca87179f51e229aa9a2f13bb8ab76750c8092579cc7b4d0cbc40235cdde27

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.

  
Link
https://cert.gov.ua/article/6276567

Comments