MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9e1309283b7401328fedfcee1e20b7c56b1e5941ef7edcbd0a80bd05307ff768. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 9e1309283b7401328fedfcee1e20b7c56b1e5941ef7edcbd0a80bd05307ff768
SHA3-384 hash: 54e235357486ad75ad5feece578e37db388097ad0354b89de769c990e97f51ac583a8ae4a1d2f8261a9147da327647fc
SHA1 hash: e036099516ef01747b98f5f392f24ece0f4824e1
MD5 hash: c1a7bf262d7bad7fc46411c0996fc50c
humanhash: spaghetti-eighteen-nitrogen-twelve
File name:SecuriteInfo.com.Exploit.CVE-2017-11882.123.13950.5767
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:80'333 bytes
First seen:2024-08-15 14:30:31 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 384:nITYZFltcT8iGLSd6PvibTebgjoa38G6Ck0wv1uVgn1I+G0CD8fxAFlgWa4X:IkZVioPvgTebgj6swv1uSnu/0Sb
TLSH T12D73020DE39F41A5CF45A773132A5A8911FCB73EF20011B671AC97313BAD82D49A99BC
Reporter SecuriteInfoCom
Tags:CVE-2017-11882 RemcosRAT rtf

Intelligence

File Origin
# of uploads :
1
# of downloads :
131
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.Exploit.CVE-2017-11882.123.13950.5767
Verdict:
No threats detected
Analysis date:
2024-08-15 14:31:10 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/677e6ddd-de9d-44fa-873b-e562aa5d1bae

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Exploit.CVE-2017-11882.123.13950.5767.UNOFFICIAL
Create hunting rule

Sanesecurity.Shelter.Malware.BadRtf.ObjUpd.UNOFFICIAL
Create hunting rule

TwinWave.EvilRTF.ObfusRunAway.20240409.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66be1127aa5b40be0aa041f2
Tags:
Encryption Execution Exploit Generic Network Office Stealth
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/9e1309283b7401328fedfcee1e20b7c56b1e5941ef7edcbd0a80bd05307ff768/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/66be112632f6d05ff3cd82c1/reports/a0b5013b-ab68-497f-8e41-6082f9fd0580/overview
Verdict:
Malicious
Labled as:
CVE-2017-11882
Link:
https://www.hybrid-analysis.com/sample/9e1309283b7401328fedfcee1e20b7c56b1e5941ef7edcbd0a80bd05307ff768
Result
Verdict:
MALICIOUS
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1493391
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
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 register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Detected Remcos RAT
Document exploit detected (process start blacklist hit)
Found malware configuration
Found potential equation exploit (CVE-2017-11882)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Installs new ROOT certificates
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Office drops RTF file
Office equation editor establishes network connection
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Searches for Windows Mail specific files
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: Equation Editor Network Connection
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: Potential PowerShell Obfuscation Via Reversed Commands
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Powershell download and load assembly
Sigma detected: Remcos
Sigma detected: Suspicious Microsoft Office Child Process
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
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)
Uses dynamic DNS services
Very long command line found
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected Powershell download and execute
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1493391 Sample: SecuriteInfo.com.Exploit.CV... Startdate: 15/08/2024 Architecture: WINDOWS Score: 100 67 Suricata IDS alerts for network traffic 2->67 69 Found malware configuration 2->69 71 Malicious sample detected (through community Yara rule) 2->71 73 24 other signatures 2->73 11 WINWORD.EXE 336 18 2->11         started        process3 file4 41 C:\Users\...\~WRD0000.tmp:Zone.Identifier, ASCII 11->41 dropped 43 C:\Users\user\Desktop\~WRD0000.tmp, Rich 11->43 dropped 45 SecuriteInfo.com.E...950.5767.rtf (copy), Rich 11->45 dropped 47 ~WRF{FCBE6050-00AC...1-098EE6FBA300}.tmp, Composite 11->47 dropped 14 EQNEDT32.EXE 12 11->14         started        process5 dnsIp6 61 198.12.81.252, 49161, 49163, 80 AS-COLOCROSSINGUS United States 14->61 51 C:\Users\...\meetthebuttersmoothbunswe.vBS, Unicode 14->51 dropped 63 Office equation editor establishes network connection 14->63 65 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 14->65 19 wscript.exe 1 14->19         started        file7 signatures8 process9 signatures10 83 Suspicious powershell command line found 19->83 85 Wscript starts Powershell (via cmd or directly) 19->85 87 Very long command line found 19->87 89 3 other signatures 19->89 22 powershell.exe 4 19->22         started        process11 signatures12 91 Suspicious powershell command line found 22->91 93 Suspicious execution chain found 22->93 25 powershell.exe 12 5 22->25         started        process13 dnsIp14 53 ia803104.us.archive.org 207.241.232.154, 443, 49162 INTERNET-ARCHIVEUS United States 25->53 95 Installs new ROOT certificates 25->95 97 Writes to foreign memory regions 25->97 99 Injects a PE file into a foreign processes 25->99 29 RegAsm.exe 3 13 25->29         started        signatures15 process16 dnsIp17 55 serversw.duckdns.org 29->55 57 serversw.duckdns.org 135.148.195.248, 49164, 49165, 6875 AVAYAUS United States 29->57 59 geoplugin.net 178.237.33.50, 49166, 80 ATOM86-ASATOM86NL Netherlands 29->59 49 C:\Users\user\AppData\Local\Temp\...\logs.dat, data 29->49 dropped 101 Contains functionality to bypass UAC (CMSTPLUA) 29->101 103 Detected Remcos RAT 29->103 105 Tries to steal Mail credentials (via file registry) 29->105 109 7 other signatures 29->109 34 RegAsm.exe 1 29->34         started        37 RegAsm.exe 1 29->37         started        39 RegAsm.exe 11 29->39         started        file18 107 Uses dynamic DNS services 55->107 signatures19 process20 signatures21 75 Tries to steal Instant Messenger accounts or passwords 34->75 77 Tries to steal Mail credentials (via file / registry access) 34->77 79 Searches for Windows Mail specific files 34->79 81 Tries to harvest and steal browser information (history, passwords, etc) 37->81
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/9e1309283b7401328fedfcee1e20b7c56b1e5941ef7edcbd0a80bd05307ff768
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/9e1309283b7401328fedfcee1e20b7c56b1e5941ef7edcbd0a80bd05307ff768/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-08-15 10:58:15 UTC
File Type:
Document
Extracted files:
4
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tyjqskb3oqatfd7n7txb4ifxyvvr4wkb557nzpikqc6qkmd765ua._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
discovery execution
Link:
https://tria.ge/reports/240815-rvpn5s1cnp/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Windows directory
Drops file in System32 directory
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Malware Config
Dropper Extraction:
https://ia803104.us.archive.org/27/items/vbs_20240726_20240726/vbs.jpg
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/af1a6191-2651-48dc-b2c4-2529b3589907
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/9e1309283b74/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.29
Link:
https://yomi.yoroi.company/submissions/9e1309283b7401328fedfcee1e20b7c56b1e5941ef7edcbd0a80bd05307ff768

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:SUSP_INDICATOR_RTF_MalVer_Objects
Create hunting rule
Author:ditekSHen
Description:Detects RTF documents with non-standard version and embedding one of the object mostly observed in exploit (e.g. CVE-2017-11882) documents.
Reference:https://github.com/ditekshen/detection

File information

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

Web download

RemcosRAT

Rich Text Format (RTF) rtf 9e1309283b7401328fedfcee1e20b7c56b1e5941ef7edcbd0a80bd05307ff768

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3108201/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3108206/

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