MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 fee89b3c1c62558b898de922841ab097f418c12d5384cea4d5cd91537166ca22. 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: 14
| SHA256 hash: | fee89b3c1c62558b898de922841ab097f418c12d5384cea4d5cd91537166ca22 |
|---|---|
| SHA3-384 hash: | c244031733a8404ed878e84b4fad993a9076565d8cf9ec959b2e69b56a17ae95878609be98158a0476f4e3f138d75a7f |
| SHA1 hash: | 5ad766cc0f71d03018c7da0d18280d2c571048b0 |
| MD5 hash: | 0f08eb0a48abbd926b1028b4371c15df |
| humanhash: | bakerloo-lamp-rugby-charlie |
| File name: | 0f08eb0a48abbd926b1028b4371c15df |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 13'326 bytes |
| First seen: | 2023-03-15 09:59:19 UTC |
| Last seen: | 2023-03-15 11:27:16 UTC |
| File type: |  rtf |
| MIME type: | text/rtf |
| ssdeep | 384:mID1gz+AmxTHYb3LsJf3+ZQQrnuAiu2Gkb1gr2vt:mMqLsp3+qiucSSr2vt |
| TLSH | T12552E8411BCD98F28268E133822A900E48BEE57734971AE8BDCCD4963BFD60D46F91F5 |
| Reporter |  zbetcheckin |
| Tags: | CVE-2017-11882 RemcosRAT rtf |
Intelligence
File Origin
# of uploads :
2
# of downloads :
108
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
ID:
1
File name:
DHLAWB#6833799799.docx
Verdict:
Malicious activity
Analysis date:
2023-03-15 08:02:12 UTC
Tags:
opendir exploit cve-2017-11882 rat remcos loader keylogger stealer
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Sending a custom TCP request
Searching for synchronization primitives
Launching a process
Creating a window
Creating a file
Сreating synchronization primitives
Creating a file in the %temp% directory
Setting a keyboard event handler
DNS request
Reading critical registry keys
Sending an HTTP GET request
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a recently created process
Stealing user critical data
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
RTF File
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
CVE-2017-11882 embedequation exploit shell32.dll shellcode
Verdict:
Malicious
Labled as:
CVE-2017-11882
Result
Verdict:
MALICIOUS
Result
Threat name:
Remcos, AgentTesla
Detection:
malicious
Classification:
phis.troj.spyw.expl.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
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
Drops PE files to the user root directory
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Installs a global keyboard hook
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
May check the online IP address of the machine
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)
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Searches for Windows Mail specific files
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: Remcos
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Yara detected Generic Downloader
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Status:
Malicious
First seen:
2023-03-15 10:00:11 UTC
File Type:
Document
Extracted files:
4
AV detection:
13 of 24 (54.17%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
remcos
Score:
10/10
Tags:
family:agenttesla family:remcos botnet:remotehost collection keylogger rat spyware stealer trojan
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 behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Executes dropped EXE
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Uses the VBS compiler for execution
Blocklisted process makes network request
Downloads MZ/PE file
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
AgentTesla
Remcos
Malware Config
C2 Extraction:
vcv.mastercoa.co:8489
Malware family:
AgentTesla
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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You need to login to in order to write a comment. Login with your abuse.ch account.url : hxxp://34.238.244.174/999..........................999....................doc