MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6e2b7a094b6dc5bcf9880332f39b6dd6eefd711d6835bb289493cae6896c26b9. 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: 6e2b7a094b6dc5bcf9880332f39b6dd6eefd711d6835bb289493cae6896c26b9
SHA3-384 hash: d141e714f357500b333e1dd3b49de556cbd1df077e2bc4bd13b82cf3a4172b810d35f4d5d5664d145b5e660d2dc91baa
SHA1 hash: b559111214ecd6318c86acc86836fbc96ac7ebf6
MD5 hash: 03c634f3b71f5dcfca4f2016482bf5f2
humanhash: jersey-moon-pluto-fruit
File name:SecuriteInfo.com.Exploit.CVE-2017-11882.123.3511.17688
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:82'071 bytes
First seen:2024-08-20 15:27:14 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 768:wmUHFGj2vIiMWXU3ywfz4ai4Z5uep63TSmfKS:aHvMWXiyw7N5uep6jnfKS
TLSH T1DE83E04DE78F41A5CF546677131A4A8845FDBB3EF34501B235AC83313BAC82E48A697C
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:
SecuriteInfo.com.Exploit.CVE-2017-11882.123.3511.17688
Verdict:
No threats detected
Analysis date:
2024-08-20 18:05:18 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/da234f2d-3a58-4548-a1dd-01ffc0c45a81

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Exploit.CVE-2017-11882.123.3511.17688.UNOFFICIAL
Create hunting rule

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

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

Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66c4b617e7ff3f5a063ba3c4
Tags:
Encryption Execution Exploit Generic Network Office Stealth
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/6e2b7a094b6dc5bcf9880332f39b6dd6eefd711d6835bb289493cae6896c26b9/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/66c4b60d9498a0e255affe38/reports/e904df2b-abe3-43cb-80eb-02226dd8e783/overview
Verdict:
Malicious
Labled as:
CVE-2017-11882
Link:
https://www.hybrid-analysis.com/sample/6e2b7a094b6dc5bcf9880332f39b6dd6eefd711d6835bb289493cae6896c26b9
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/1495949
Signature
Antivirus / Scanner detection for submitted sample
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
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 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: 1495949 Sample: SecuriteInfo.com.Exploit.CV... Startdate: 20/08/2024 Architecture: WINDOWS Score: 100 60 Suricata IDS alerts for network traffic 2->60 62 Found malware configuration 2->62 64 Malicious sample detected (through community Yara rule) 2->64 66 21 other signatures 2->66 10 WINWORD.EXE 291 13 2->10         started        process3 process4 12 EQNEDT32.EXE 12 10->12         started        17 EQNEDT32.EXE 10->17         started        dnsIp5 50 198.12.81.252, 49163, 49165, 80 AS-COLOCROSSINGUS United States 12->50 42 C:\...\createdbutterbunwithnewyummybun.vBS, Unicode 12->42 dropped 98 Office equation editor establishes network connection 12->98 100 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 12->100 19 wscript.exe 1 12->19         started        file6 signatures7 process8 signatures9 68 Suspicious powershell command line found 19->68 70 Wscript starts Powershell (via cmd or directly) 19->70 72 Very long command line found 19->72 74 3 other signatures 19->74 22 powershell.exe 4 19->22         started        25 RegAsm.exe 1 19->25         started        27 RegAsm.exe 1 19->27         started        29 RegAsm.exe 11 19->29         started        process10 signatures11 86 Suspicious powershell command line found 22->86 88 Suspicious execution chain found 22->88 31 powershell.exe 12 5 22->31         started        90 Tries to steal Instant Messenger accounts or passwords 25->90 92 Tries to steal Mail credentials (via file / registry access) 25->92 94 Searches for Windows Mail specific files 25->94 96 Tries to harvest and steal browser information (history, passwords, etc) 27->96 process12 dnsIp13 52 ia803104.us.archive.org 207.241.232.154, 443, 49164 INTERNET-ARCHIVEUS United States 31->52 54 Installs new ROOT certificates 31->54 56 Writes to foreign memory regions 31->56 58 Injects a PE file into a foreign processes 31->58 35 RegAsm.exe 3 13 31->35         started        signatures14 process15 dnsIp16 44 serversw.duckdns.org 35->44 46 serversw.duckdns.org 135.148.195.248, 49166, 49167, 6875 AVAYAUS United States 35->46 48 geoplugin.net 178.237.33.50, 49168, 80 ATOM86-ASATOM86NL Netherlands 35->48 40 C:\Users\user\AppData\Local\Temp\...\logs.dat, data 35->40 dropped 76 Contains functionality to bypass UAC (CMSTPLUA) 35->76 78 Detected Remcos RAT 35->78 80 Tries to steal Mail credentials (via file registry) 35->80 84 7 other signatures 35->84 file17 82 Uses dynamic DNS services 44->82 signatures18
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/6e2b7a094b6dc5bcf9880332f39b6dd6eefd711d6835bb289493cae6896c26b9
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/6e2b7a094b6dc5bcf9880332f39b6dd6eefd711d6835bb289493cae6896c26b9/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-08-20 03:35:01 UTC
File Type:
Document
Extracted files:
5
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nyvxucklnxc3z6miamzphg3n23xp24i5na23wkeuspfonclme24q._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
discovery execution
Link:
https://tria.ge/reports/240820-swclmszaqa/
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/b0b0ef64-6444-4a02-b004-0a9734f02038
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6e2b7a094b6d/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/6e2b7a094b6dc5bcf9880332f39b6dd6eefd711d6835bb289493cae6896c26b9

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 6e2b7a094b6dc5bcf9880332f39b6dd6eefd711d6835bb289493cae6896c26b9

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3117581/
  
Delivery method
Distributed via web download

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