MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 16b355e9abafe1569e7a68abf79adcf89267c3968819743dc3963c31aa5de245. 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: 15
| SHA256 hash: | 16b355e9abafe1569e7a68abf79adcf89267c3968819743dc3963c31aa5de245 |
|---|---|
| SHA3-384 hash: | 76504a9f7f3941ca78bf979ca5b3f9f133205ccaf5bbd1362bcbe827172e8cbbadf0359092b07ccd168a1d894dac325a |
| SHA1 hash: | 062ad4e51a0688441f81e829a4ddc1e0363046f9 |
| MD5 hash: | 8504482b2c616c2052d6ed9656344162 |
| humanhash: | oxygen-jupiter-leopard-arizona |
| File name: | 8504482b2c616c2052d6ed9656344162 |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 26'191 bytes |
| First seen: | 2023-06-01 20:20:30 UTC |
| Last seen: | Never |
| File type: |  rtf |
| MIME type: | text/rtf |
| ssdeep | 768:b4iJeeQ9greu9kI9U3hM+Jlgz2wziCS2uAuiUvFru:bbJeeQ9fPSz2wzRSKuiUvxu |
| TLSH | T1D3C2375A5B8C4C61E266F87B479ED01E18BCF23630C255C5BD9DE2707B6E10E0B6B1B8 |
| Reporter |  zbetcheckin |
| Tags: | CVE-2017-11882 RemcosRAT rtf |
Intelligence
File Origin
# of uploads :
1
# of downloads :
122
Origin country :
FRVendor Threat Intelligence
Malware family:
remcos
ID:
1
File name:
ed169df02cbfcdd3b95171b03e5100a7ba55550e4eb4e85f770fbd34a8ee4b29.zip
Verdict:
Malicious activity
Analysis date:
2023-06-01 17:32:26 UTC
Tags:
opendir exploit cve-2017-11882 loader remcos
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for synchronization primitives
Launching a process
Creating a window
Creating a file
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Sending an HTTP GET request to an infection source by exploiting the app vulnerability
Creating a process from a recently created file
Enabling autorun
Result
Verdict:
Malicious
File Type:
RTF File
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
embedequation exploit lolbin shellcode
Verdict:
Malicious
Labled as:
CVE-2017-11882
Result
Verdict:
MALICIOUS
Result
Threat name:
Remcos
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to modify clipboard data
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
Creates an undocumented autostart registry key
Delayed program exit found
Drops PE files to the user root directory
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Office equation editor drops PE file
Office equation editor establishes network connection
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Shellcode detected
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: Remcos
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Detection:
cve-2017-11882-shellcode
Threat name:
Win32.Exploit.CVE-2017-11882
Status:
Malicious
First seen:
2023-06-01 04:28:54 UTC
File Type:
Document
Extracted files:
6
AV detection:
14 of 24 (58.33%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos botnet:remotehost persistence rat
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 AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Drops file in Windows directory
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
Modifies WinLogon for persistence
Remcos
Malware Config
C2 Extraction:
pekonomia.duckdns.org:30861
Malware family:
Remcos
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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 |
|---|---|
| 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 |
|---|---|
| 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
Delivery method
Distributed via web download
Comments
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