MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d66defc2ce75a9b799e1c79fc8f66309709ce83833f15981ad089c809c792b64. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments 1

SHA256 hash: d66defc2ce75a9b799e1c79fc8f66309709ce83833f15981ad089c809c792b64
SHA3-384 hash: 8e13cc6272189768415c3e34dca3571cb32a0c1febe045f340169682950b0bc3fbda195ab8c94cff736d539c132c3db5
SHA1 hash: 2a7df8f6a4e73cc8c81d501d22a631dc4544c6dc
MD5 hash: cfcce3ae10933515374bf5b2675b11b1
humanhash: diet-lactose-chicken-beer
File name:cfcce3ae10933515374bf5b2675b11b1
Download: download sample
Signature AgentTesla
File size:5'523'027 bytes
First seen:2023-03-14 19:39:23 UTC
Last seen:2023-03-14 21:30:49 UTC
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 24576:58mmc6bH7BUFewwFYF/7/gxQdl9rciiWbp2tiaEElFeBSJHt0eix/Yn4tpmN38ip:K
TLSH T1DD4668F0AD01D4C1F57E5B6AF2FD3A48A1343217EBC94A4A00E5E6551EF6A11F90ECCA
Reporter zbetcheckin
Tags:AgentTesla CVE-2017-11882 rtf

Intelligence


File Origin
# of uploads :
2
# of downloads :
130
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
cfcce3ae10933515374bf5b2675b11b1
Verdict:
Malicious activity
Analysis date:
2023-03-14 19:44:45 UTC
Tags:
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
Sending a custom TCP request
Searching for synchronization primitives
Launching a process
Creating a window
DNS request
Creating a file in the %AppData% directory
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:
CVE-2017-11882 embedequation exploit shellcode
Result
Verdict:
MALICIOUS
Result
Threat name:
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
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)
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)
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 steal Mail credentials (via file / registry access)
Yara detected zgRAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 826557 Sample: UPx3ZNzVcG.rtf Startdate: 14/03/2023 Architecture: WINDOWS Score: 100 40 Multi AV Scanner detection for domain / URL 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 Antivirus detection for URL or domain 2->44 46 7 other signatures 2->46 7 EQNEDT32.EXE 1 2->7         started        12 WINWORD.EXE 336 18 2->12         started        14 EQNEDT32.EXE 2->14         started        process3 dnsIp4 30 gruposello.com.co 190.8.176.102, 49173, 80 ColombiaHostingCO Colombia 7->30 28 C:\Users\user\AppData\...\xaqjjsdyQWs.exe, PE32 7->28 dropped 52 Office equation editor establishes network connection 7->52 54 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 7->54 16 xaqjjsdyQWs.exe 1 5 7->16         started        file5 signatures6 process7 signatures8 32 Multi AV Scanner detection for dropped file 16->32 34 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->34 36 Machine Learning detection for dropped file 16->36 38 2 other signatures 16->38 19 xaqjjsdyQWs.exe 2 16->19         started        22 xaqjjsdyQWs.exe 16->22         started        24 xaqjjsdyQWs.exe 16->24         started        26 xaqjjsdyQWs.exe 16->26         started        process9 signatures10 48 Tries to steal Mail credentials (via file / registry access) 19->48 50 Tries to harvest and steal browser information (history, passwords, etc) 19->50
Threat name:
Document-Office.Exploit.CVE-2017-11882
Status:
Malicious
First seen:
2023-03-14 05:34:10 UTC
File Type:
Document
Extracted files:
4
AV detection:
12 of 39 (30.77%)
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
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Blocklisted process makes network request
Downloads MZ/PE file
AgentTesla
Malware Config
C2 Extraction:
https://discord.com/api/webhooks/1048993565352673290/QG705_gjBSsIRUIxc6AmepuW3m6lKtEdEEJN9WC7I85dG6vp7ND0RcH-jJ2Jd6QNo1rK
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 d66defc2ce75a9b799e1c79fc8f66309709ce83833f15981ad089c809c792b64

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2023-03-14 19:39:26 UTC

url : hxxp://gruposello.com.co/jwwbnop/workls.doc