MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 254f4b6fa822ccaaedbd58d35706fe01b39b3b2b07de1c7eccf00119290dcf2d. 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



AgentTesla


Vendor detections: 11


Intelligence 11 IOCs YARA 2 File information Comments 1

SHA256 hash: 254f4b6fa822ccaaedbd58d35706fe01b39b3b2b07de1c7eccf00119290dcf2d
SHA3-384 hash: 49b60406c0dd4e2d05e23317a826a3b49a9d6300755c54fc8b5557cf72f05c78c00a1a35152f54f6c3cf3d4ea8f55d49
SHA1 hash: 1a91df92e658d64528138ff06983010b3258ff53
MD5 hash: 41e6396e3fb7c2ee5676acd85978f671
humanhash: ohio-lake-march-twelve
File name:41e6396e3fb7c2ee5676acd85978f671
Download: download sample
Signature AgentTesla
File size:26'690 bytes
First seen:2023-05-10 06:20:15 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 768:rUS5G5mPJi24HHE4pdkncG0+xqtJhbfifpQl0XqC6mdoHvdsoUj:rP62OH1YnJnxqtK00XimdMv+oUj
TLSH T1B5C2E2965B8C4C61F299E8B7865EE00E49BCF23630C255C4BD9DE2707B7D14E0B6B1B8
Reporter zbetcheckin
Tags:AgentTesla CVE-2017-11882 rtf

Intelligence


File Origin
# of uploads :
1
# of downloads :
94
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
41e6396e3fb7c2ee5676acd85978f671
Verdict:
Malicious activity
Analysis date:
2023-05-10 06:22:41 UTC
Tags:
opendir exploit cve-2017-11882 loader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Searching for synchronization primitives
Launching a process
Creating a window
Creating a file
Сreating synchronization primitives
Sending an HTTP GET request
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:
embedequation exploit
Result
Threat name:
AgentTesla
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
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)
May check the online IP address of the machine
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 network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Shellcode detected
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 862732 Sample: VVZvWPealR.rtf Startdate: 10/05/2023 Architecture: WINDOWS Score: 100 33 Found malware configuration 2->33 35 Malicious sample detected (through community Yara rule) 2->35 37 Antivirus detection for URL or domain 2->37 39 14 other signatures 2->39 7 EQNEDT32.EXE 12 2->7         started        12 WINWORD.EXE 291 23 2->12         started        process3 dnsIp4 31 192.3.202.72, 49173, 80 SERVER-MANIACA United States 7->31 21 C:\Users\user\AppData\Local\...\vbc[1].exe, PE32 7->21 dropped 23 C:\Users\Public\vbc.exe, PE32 7->23 dropped 47 Office equation editor establishes network connection 7->47 49 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 7->49 14 vbc.exe 1 5 7->14         started        25 ~WRF{58D9A12C-1B50...7-F33AB0F72FE2}.tmp, Composite 12->25 dropped file5 signatures6 process7 signatures8 51 Multi AV Scanner detection for dropped file 14->51 53 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->53 55 May check the online IP address of the machine 14->55 57 2 other signatures 14->57 17 vbc.exe 12 2 14->17         started        process9 dnsIp10 27 api4.ipify.org 104.237.62.211, 443, 49174 WEBNXUS United States 17->27 29 api.ipify.org 17->29 41 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->41 43 Tries to steal Mail credentials (via file / registry access) 17->43 45 Tries to harvest and steal browser information (history, passwords, etc) 17->45 signatures11
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Status:
Malicious
First seen:
2023-05-02 11:40:42 UTC
File Type:
Document
Extracted files:
4
AV detection:
14 of 37 (37.84%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla collection keylogger 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 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
Drops file in Windows directory
Suspicious use of SetThreadContext
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
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.

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

AgentTesla

Rich Text Format (RTF) rtf 254f4b6fa822ccaaedbd58d35706fe01b39b3b2b07de1c7eccf00119290dcf2d

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2023-05-10 06:20:16 UTC

url : hxxp://192.3.202.72/c/%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23.doc