MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7c3b4bdf6ecc2a908ece465a2650c764d87caaaa0b5c21e1c9664e68154eff50. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7c3b4bdf6ecc2a908ece465a2650c764d87caaaa0b5c21e1c9664e68154eff50
SHA3-384 hash: 082d94d7fc67662e449add783370c9280cd2a5d14c7f844b4f6a0811c1f0b01fb8e434b9d8a8806d54f8a2ff3d9d9890
SHA1 hash: 2733e124cca06c861792664378bcd87f5460e2fc
MD5 hash: eafca03d4c9a36b476b6ecb59e3c285e
humanhash: snake-michigan-diet-louisiana
File name:SecuriteInfo.com.Exploit.ShellCode.69.9963.10369
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:129'228 bytes
First seen:2024-06-19 11:26:28 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 3072:In+nJMf95rzCl7BH+PSv5LDzhX2ztmmQrnhJ2Ld725loKJCeKP9x:qeeKz+P0cztfGhoLk5SKJCeKP9x
TLSH T12FC3DB2EE34F0915DF5596BB434A4E490AFCB33DB38540B179AC973437AD82E4A6287C
Reporter SecuriteInfoCom
Tags:CVE-2017-11882 RemcosRAT rtf

Intelligence

File Origin
# of uploads :
1
# of downloads :
108
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Betaling.docx
Verdict:
Malicious activity
Analysis date:
2024-06-19 10:00:19 UTC
Tags:
cve-2017-0199 exploit
Link:
https://app.any.run/tasks/ed660110-eec8-4f5c-90ba-ca9d06329869

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Legit
File type:
application/rtf
Has a screenshot:
False
Contains macros:
False
Detection(s):
Sanesecurity.Malware.29030.RtfHeur.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Exploit.ShellCode.69.9963.10369.UNOFFICIAL
Create hunting rule

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

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

Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6672c1c00f8138dd4eaf8b32win7simulatehigh_evasion
Tags:
Office Static Stealth Heur
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Searching for synchronization primitives
Launching a process
Using the Windows Management Instrumentation requests
Creating a window
Sending an HTTP GET request
Creating a file in the %AppData% directory
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Creating a process with a hidden window
Launching a service
Possible injection to a system process
Connection attempt by exploiting the app vulnerability
Forced shutdown of a system process
Creating a process from a recently created file
Launching a file downloaded from the Internet
Unauthorized injection to a system process
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/7c3b4bdf6ecc2a908ece465a2650c764d87caaaa0b5c21e1c9664e68154eff50/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
90%
Tags:
embedequation exploit shellcode
Link:
https://www.filescan.io/uploads/6672c088ef9fdf64aa6cc5a3/reports/172b13ce-83fa-4156-9c15-8e61e791281a/overview
Verdict:
Malicious
Labled as:
CVE-2017-11882
Link:
https://www.hybrid-analysis.com/sample/7c3b4bdf6ecc2a908ece465a2650c764d87caaaa0b5c21e1c9664e68154eff50
Result
Verdict:
MALICIOUS
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
spre.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1459456
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Connects to a pastebin service (likely for C&C)
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
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 domain / URL
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
Shellcode detected
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: Powershell download payload from hardcoded c2 list
Sigma detected: Remcos
Sigma detected: Script Initiated Connection to Non-Local Network
Sigma detected: Suspicious Microsoft Office Child Process
Sigma detected: WScript or CScript Dropper
Snort IDS alert for network traffic
Suspicious execution chain found
Suspicious powershell command line found
System process connects to network (likely due to code injection or exploit)
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
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 VBS Downloader Generic
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1459456 Sample: SecuriteInfo.com.Exploit.Sh... Startdate: 19/06/2024 Architecture: WINDOWS Score: 100 67 Snort IDS alert for network traffic 2->67 69 Multi AV Scanner detection for domain / URL 2->69 71 Found malware configuration 2->71 73 27 other signatures 2->73 11 WINWORD.EXE 336 17 2->11         started        process3 file4 43 SecuriteInfo.com.E...63.10369.rtf (copy), Rich 11->43 dropped 45 ~WRF{58991C8F-02A1...0-5F10AEB14EB8}.tmp, Composite 11->45 dropped 14 EQNEDT32.EXE 12 11->14         started        process5 dnsIp6 57 172.235.39.109, 49162, 49166, 80 AKAMAI-ASN1EU United States 14->57 47 C:\Users\...\dogareloyalwithcuteheartlove.vbs, Unicode 14->47 dropped 49 C:\...\dogareloyalwithcuteheartlove[1].bmp, Unicode 14->49 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 11 14->19         started        file7 signatures8 process9 dnsIp10 51 paste.ee 19->51 53 uploaddeimagens.com.br 188.114.97.3, 443, 49163, 49164 CLOUDFLARENETUS European Union 19->53 75 System process connects to network (likely due to code injection or exploit) 19->75 77 Suspicious powershell command line found 19->77 79 Wscript starts Powershell (via cmd or directly) 19->79 83 4 other signatures 19->83 23 powershell.exe 4 19->23         started        signatures11 81 Connects to a pastebin service (likely for C&C) 51->81 process12 signatures13 93 Suspicious powershell command line found 23->93 95 Suspicious execution chain found 23->95 26 powershell.exe 12 5 23->26         started        process14 dnsIp15 55 uploaddeimagens.com.br 26->55 97 Writes to foreign memory regions 26->97 99 Injects a PE file into a foreign processes 26->99 30 RegAsm.exe 3 10 26->30         started        34 RegAsm.exe 26->34         started        signatures16 process17 dnsIp18 59 94.156.66.67, 2409, 49167, 49168 TERASYST-ASBG Bulgaria 30->59 61 geoplugin.net 178.237.33.50, 49169, 80 ATOM86-ASATOM86NL Netherlands 30->61 101 Detected Remcos RAT 30->101 103 Maps a DLL or memory area into another process 30->103 36 RegAsm.exe 1 30->36         started        39 RegAsm.exe 30->39         started        41 RegAsm.exe 11 30->41         started        105 Contains functionality to bypass UAC (CMSTPLUA) 34->105 107 Tries to steal Mail credentials (via file registry) 34->107 109 Contains functionality to steal Chrome passwords or cookies 34->109 111 4 other signatures 34->111 signatures19 process20 signatures21 85 Tries to steal Instant Messenger accounts or passwords 36->85 87 Tries to steal Mail credentials (via file / registry access) 36->87 89 Searches for Windows Mail specific files 36->89 91 Tries to harvest and steal browser information (history, passwords, etc) 39->91
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/7c3b4bdf6ecc2a908ece465a2650c764d87caaaa0b5c21e1c9664e68154eff50/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-06-19 11:27:08 UTC
File Type:
Document
Extracted files:
4
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=pq5uxx3ozqvjbdwoizncmughmtmhzkvkbnocdyojmzhgqfko75ia._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/240619-nkeveazala/
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 use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Drops file in Windows directory
Blocklisted process makes network request
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/8968f4e5-3697-4810-ba3c-916834d48d10
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/7c3b4bdf6ecc2a908ece465a2650c764d87caaaa0b5c21e1c9664e68154eff50

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:INDICATOR_RTF_MalVer_Objects
Create hunting rule
Author:ditekSHen
Description:Detects RTF documents with non-standard version and embeding one of the object mostly observed in exploit documents.
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.

Comments