MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 caa7719f6020d911cc3e6ad542331508e22180445d7fa9206bf60193cb69d5e9. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments 1

SHA256 hash: caa7719f6020d911cc3e6ad542331508e22180445d7fa9206bf60193cb69d5e9
SHA3-384 hash: 28b84cb0d5ef93151d637562d6af88abb9f92ea656b02feed643db1cb52e5986b5cc8e7f6f28e9c6f7db8e6a9be47d86
SHA1 hash: cb563241140c9f2dc9842fa777bfe3affcab639a
MD5 hash: 53b7ecf8450a8d221651aafd0a799b05
humanhash: asparagus-carolina-paris-monkey
File name:53b7ecf8450a8d221651aafd0a799b05
Download: download sample
Signature AgentTesla
File size:12'031 bytes
First seen:2023-03-08 10:06:37 UTC
Last seen:2023-03-08 11:27:44 UTC
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 192:T6MxsUwPCHideSqQ+Yj3pNKswRCVYjpUts4eMxgofGT55dwN9xcmUuN1IFOQ5tK7:mMSJqseSqQb3pNERCcUre2goeTHdwN9J
TLSH T1DF42E6510B8CA8F1E3A9E1334124940E09BDF56734D71AE8B9CCE1A137BD60D5AFA1F6
Reporter zbetcheckin
Tags:AgentTesla CVE-2017-11882 rtf

Intelligence


File Origin
# of uploads :
2
# of downloads :
102
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PaymentXSlip.docx
Verdict:
Malicious activity
Analysis date:
2023-03-08 08:08:11 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:
CVE-2017-11882 embedequation exploit exploit packed shellcode
Result
Threat name:
AgentTesla, zgRAT
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Drops PE files to the user root directory
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 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)
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected zgRAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 822183 Sample: eT56JIoI3J.rtf Startdate: 08/03/2023 Architecture: WINDOWS Score: 100 56 Snort IDS alert for network traffic 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 Antivirus detection for URL or domain 2->60 62 12 other signatures 2->62 7 EQNEDT32.EXE 12 2->7         started        12 taskeng.exe 1 2->12         started        14 WINWORD.EXE 336 20 2->14         started        16 EQNEDT32.EXE 2->16         started        process3 dnsIp4 46 23.94.231.188, 49179, 80 AS-COLOCROSSINGUS United States 7->46 42 C:\Users\user\AppData\Local\...\vbc[1].exe, PE32 7->42 dropped 44 C:\Users\Public\vbc.exe, PE32 7->44 dropped 78 Office equation editor establishes network connection 7->78 80 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 7->80 18 vbc.exe 1 8 7->18         started        22 TdPQEEr.exe 2 12->22         started        file5 signatures6 process7 file8 38 C:\Users\user\AppData\Roaming\TdPQEEr.exe, PE32 18->38 dropped 40 C:\Users\user\AppData\Local\...\tmp146B.tmp, XML 18->40 dropped 64 Multi AV Scanner detection for dropped file 18->64 66 Machine Learning detection for dropped file 18->66 68 Uses schtasks.exe or at.exe to add and modify task schedules 18->68 70 Injects a PE file into a foreign processes 18->70 24 RegSvcs.exe 12 2 18->24         started        28 powershell.exe 6 18->28         started        30 schtasks.exe 18->30         started        72 Writes to foreign memory regions 22->72 74 Allocates memory in foreign processes 22->74 76 Adds a directory exclusion to Windows Defender 22->76 32 RegSvcs.exe 22->32         started        34 powershell.exe 22->34         started        36 schtasks.exe 22->36         started        signatures9 process10 dnsIp11 48 api4.ipify.org 173.231.16.76, 443, 49180 WEBNXUS United States 24->48 50 api.ipify.org 24->50 82 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 24->82 84 May check the online IP address of the machine 24->84 86 Tries to steal Mail credentials (via file / registry access) 24->86 88 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 24->88 52 104.237.62.211, 443, 49181 WEBNXUS United States 32->52 54 api.ipify.org 32->54 90 Tries to harvest and steal browser information (history, passwords, etc) 32->90 signatures12
Threat name:
Document-Office.Exploit.CVE-2017-11882
Status:
Malicious
First seen:
2023-03-07 11:54:43 UTC
File Type:
Document
Extracted files:
5
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
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
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
Drops file in Windows directory
Drops file in System32 directory
Executes dropped EXE
Loads dropped DLL
Uses the VBS compiler for execution
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 caa7719f6020d911cc3e6ad542331508e22180445d7fa9206bf60193cb69d5e9

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2023-03-08 10:06:43 UTC

url : hxxp://23.94.231.188/31.31.31.doc