MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8972f88f545848efde365259eb058edea0d7db003df9d83d4696ecdaf7618bcc. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments

SHA256 hash: 8972f88f545848efde365259eb058edea0d7db003df9d83d4696ecdaf7618bcc
SHA3-384 hash: c5e1317a7b379d80bb217ae36894dd73bd451de889fce0164150cf82fe20f68158c96091694b0c1ff5ae3c642b36536b
SHA1 hash: f527297e2c07efe57704c0520780f831513c46d5
MD5 hash: 74d2ee93961c4db83a6255f428022d4e
humanhash: coffee-high-mississippi-earth
File name:74d2ee93961c4db83a6255f428022d4e.rtf
Download: download sample
Signature AgentTesla
File size:44'528 bytes
First seen:2023-08-03 07:59:53 UTC
Last seen:2023-08-03 08:49:37 UTC
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 768:twAbZSibMX9gRWj07TcIskwlMTIq7f5WhDv5cki:twAlRP7T6blMTGy
TLSH T1B1139E2DD34F41A9CF625277AB1A0E5442FDBB7EB38522B1306C933533EE82D51252B9
Reporter abuse_ch
Tags:AgentTesla CVE-2017-11882 rtf

Intelligence


File Origin
# of uploads :
2
# of downloads :
122
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
74d2ee93961c4db83a6255f428022d4e.rtf
Verdict:
Malicious activity
Analysis date:
2023-08-03 08:02:30 UTC
Tags:
exploit cve-2017-11882 loader agenttesla stealer

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
Sending a custom TCP request
Searching for synchronization primitives
Launching a process
Creating a window
Creating a file in the %AppData% directory
Сreating synchronization primitives
Sending an HTTP GET request to an infection source by exploiting the app vulnerability
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 packed shellcode
Result
Verdict:
MALICIOUS
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Found malware configuration
Injects a PE file into a foreign processes
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 document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
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
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: 1284949 Sample: D34mg9HS7W.rtf Startdate: 03/08/2023 Architecture: WINDOWS Score: 100 36 Multi AV Scanner detection for domain / URL 2->36 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 14 other signatures 2->42 7 EQNEDT32.EXE 11 2->7         started        12 WINWORD.EXE 336 17 2->12         started        14 EQNEDT32.EXE 2->14         started        process3 dnsIp4 26 2.59.254.18, 49183, 80 CMCSUS Germany 7->26 22 C:\Users\user\AppData\...\lawerhgj57848.exe, PE32 7->22 dropped 24 C:\Users\user\AppData\Local\...\lawzx[1].exe, PE32 7->24 dropped 50 Office equation editor establishes network connection 7->50 52 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 7->52 16 lawerhgj57848.exe 1 5 7->16         started        file5 signatures6 process7 signatures8 28 Antivirus detection for dropped file 16->28 30 Multi AV Scanner detection for dropped file 16->30 32 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->32 34 Injects a PE file into a foreign processes 16->34 19 lawerhgj57848.exe 2 16->19         started        process9 signatures10 44 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 19->44 46 Tries to steal Mail credentials (via file / registry access) 19->46 48 Tries to harvest and steal browser information (history, passwords, etc) 19->48
Threat name:
Document-Office.Exploit.CVE-2017-11882
Status:
Malicious
First seen:
2023-08-03 06:56:30 UTC
File Type:
Document
Extracted files:
3
AV detection:
19 of 38 (50.00%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
spyware stealer
Behaviour
Launches Equation Editor
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Suspicious use of SetThreadContext
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
Blocklisted process makes network request
Downloads MZ/PE file
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 8972f88f545848efde365259eb058edea0d7db003df9d83d4696ecdaf7618bcc

(this sample)

  
Delivery method
Distributed via web download

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