MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3b406d1a5764d2b20c36bb714c3c5d1e016d59bf4d6371667b61a3d8686a3071. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3b406d1a5764d2b20c36bb714c3c5d1e016d59bf4d6371667b61a3d8686a3071
SHA3-384 hash: 1e0bdee344149d8f6941c45275ae2893631f163734ca9aec8abde0249d8c18f13309b4864c82af81e7651693f45781d4
SHA1 hash: 9e2ec8744b87c9903364090f4752505457dbfcae
MD5 hash: 1807759e6b03e69780dd6775b44e03fd
humanhash: hotel-seventeen-princess-carpet
File name:1807759e6b03e69780dd6775b44e03fd.rtf
Download: download sample
Signature AgentTesla
Create hunting rule
File size:42'002 bytes
First seen:2023-07-21 05:58:51 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 768:vFx0XaIsnPRIa4fwJMg1DvWxOhX9jwl682Dtbu:vf0Xvx3EMAbvhtjk682Bi
TLSH T116137D5AE79F02A4CF9112B7171B0A89A6FDB33DB25145A1346C933433EDC3D4626ABC
TrID 71.4% (.PZ2) Poser pose (12500/1/4)
28.5% (.RTF) Rich Text Format (5000/1)
Reporter abuse_ch
Tags:AgentTesla CVE-2017-11882 rtf

Intelligence

File Origin
# of uploads :
1
# of downloads :
110
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
1807759e6b03e69780dd6775b44e03fd.rtf
Verdict:
Malicious activity
Analysis date:
2023-07-21 06:01:43 UTC
Tags:
exploit cve-2017-11882 loader stealer agenttesla
Link:
https://app.any.run/tasks/79a27a73-9257-44cc-93ba-049ef0f71daa

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Sanesecurity.Malware.28669.RtfHeur.UNOFFICIAL
Create hunting rule

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

TwinWave.EvilDoc.PKILLLureTextKingOfWishfulThinking.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/3b406d1a5764d2b20c36bb714c3c5d1e016d59bf4d6371667b61a3d8686a3071/results/dashboard
Behaviour
BlacklistAPI detected
Gathering data
Verdict:
Malicious
Labled as:
CVE-2018-0802
Link:
https://www.hybrid-analysis.com/sample/3b406d1a5764d2b20c36bb714c3c5d1e016d59bf4d6371667b61a3d8686a3071
Result
Verdict:
MALICIOUS
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1277209
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for domain / URL
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
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1277209 Sample: cPd4Kje3kX.rtf Startdate: 21/07/2023 Architecture: WINDOWS Score: 100 39 Multi AV Scanner detection for domain / URL 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 11 other signatures 2->45 7 EQNEDT32.EXE 11 2->7         started        12 WINWORD.EXE 336 17 2->12         started        14 EQNEDT32.EXE 2->14         started        process3 dnsIp4 31 87.121.221.212, 49181, 80 TING-WIRELESSUS Bulgaria 7->31 23 C:\Users\user\...\prosperngfj46523.exe, PE32 7->23 dropped 25 C:\Users\user\AppData\...\prosperzx[1].exe, PE32 7->25 dropped 53 Office equation editor establishes network connection 7->53 55 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 7->55 16 prosperngfj46523.exe 1 5 7->16         started        file5 signatures6 process7 signatures8 33 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->33 35 May check the online IP address of the machine 16->35 37 Injects a PE file into a foreign processes 16->37 19 prosperngfj46523.exe 12 2 16->19         started        process9 dnsIp10 27 api4.ipify.org 104.237.62.211, 443, 49182 WEBNXUS United States 19->27 29 api.ipify.org 19->29 47 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 19->47 49 Tries to steal Mail credentials (via file / registry access) 19->49 51 Tries to harvest and steal browser information (history, passwords, etc) 19->51 signatures11
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3b406d1a5764d2b20c36bb714c3c5d1e016d59bf4d6371667b61a3d8686a3071/
Threat name:
Win32.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2023-07-20 13:34:33 UTC
File Type:
Document
Extracted files:
3
AV detection:
14 of 37 (37.84%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hnag2gsxmtjledbwxnyuypc5dyaw2wn7jvrxczt3mgr5q2dkgbyq._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Link:
https://tria.ge/reports/230721-gpqzxach5x/
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
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
Blocklisted process makes network request
Downloads MZ/PE file
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot6381416776:AAGJkWrlSonqQPI9MEgZDaCvfd7LP-ED0lA/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3b406d1a5764/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.20
Link:
https://yomi.yoroi.company/submissions/3b406d1a5764d2b20c36bb714c3c5d1e016d59bf4d6371667b61a3d8686a3071

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
Create hunting rule
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
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

AgentTesla

Rich Text Format (RTF) rtf 3b406d1a5764d2b20c36bb714c3c5d1e016d59bf4d6371667b61a3d8686a3071

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2677086/
  
Delivery method
Distributed via web download

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