MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e399cdab404d5046aba55ff32346f96349d482763a3b1c633c9a8fb594f09a17. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e399cdab404d5046aba55ff32346f96349d482763a3b1c633c9a8fb594f09a17
SHA3-384 hash: 180851eb84305ccd07daa219f7594077e833d3bc8fa78c0c3a057bdf8b8d27b3af465ff9bde40d2198b3e6439638aee6
SHA1 hash: b492c03cb6824682d575a6b77e3c1c3b7755a331
MD5 hash: ba628c629f3472e3b57de14e3cdb05d2
humanhash: april-high-blossom-lake
File name:ba628c629f3472e3b57de14e3cdb05d2
Download: download sample
Signature AgentTesla
Create hunting rule
File size:13'013 bytes
First seen:2023-03-03 04:31:00 UTC
Last seen:2023-03-03 07:36:58 UTC
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 384:3G0wPz8KFm+Aei4b30TwMwueS28GGmYP13kXwLhVE:3GrJJi1wok/GJRk80
TLSH T1D942E8511BCD95F2D328B033812A800A18BEB57B35A76AF4B88DE45277FC60D46FC5B8
Reporter zbetcheckin
Tags:AgentTesla CVE-2017-11882 rtf

Intelligence

File Origin
# of uploads :
2
# of downloads :
109
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
POX010-240.docx
Verdict:
Malicious activity
Analysis date:
2023-03-02 14:21:22 UTC
Tags:
opendir exploit cve-2017-11882 loader
Link:
https://app.any.run/tasks/6d681973-bca2-4e83-941e-d0cb247f8871

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Sanesecurity.Malware.28881.RtfHeur.UNOFFICIAL
Create hunting rule

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 to an infection source by exploiting the app vulnerability
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/e399cdab404d5046aba55ff32346f96349d482763a3b1c633c9a8fb594f09a17/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
CVE-2017-11882 embedequation exploit shellcode
Link:
https://www.filescan.io/uploads/6401780bbfec0852a68ea959/reports/fab17242-044d-4315-b834-84e686bd4339/overview
Verdict:
Malicious
Labled as:
CVE-2017-11882
Link:
https://www.hybrid-analysis.com/sample/e399cdab404d5046aba55ff32346f96349d482763a3b1c633c9a8fb594f09a17
Result
Verdict:
MALICIOUS
Result
Threat name:
AgentTesla, zgRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1186302
Signature
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Drops PE files to the user root directory
Hides that the sample has been downloaded from the Internet (zone.identifier)
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 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
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected zgRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 819168 Sample: 1by7XO3Dz7.rtf Startdate: 03/03/2023 Architecture: WINDOWS Score: 100 68 Malicious sample detected (through community Yara rule) 2->68 70 Antivirus detection for URL or domain 2->70 72 Antivirus / Scanner detection for submitted sample 2->72 74 10 other signatures 2->74 7 EQNEDT32.EXE 12 2->7         started        12 taskeng.exe 1 2->12         started        14 gcWPrHZ.exe 2->14         started        16 3 other processes 2->16 process3 dnsIp4 66 198.46.174.170, 49173, 80 AS-COLOCROSSINGUS United States 7->66 62 C:\Users\user\AppData\Local\...\vbc[1].exe, PE32 7->62 dropped 64 C:\Users\Public\vbc.exe, PE32 7->64 dropped 100 Office equation editor establishes network connection 7->100 102 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 7->102 18 vbc.exe 1 8 7->18         started        22 iygpxcCSjijj.exe 2 12->22         started        104 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->104 106 Machine Learning detection for dropped file 14->106 108 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 14->108 24 gcWPrHZ.exe 14->24         started        26 powershell.exe 14->26         started        28 schtasks.exe 14->28         started        110 Adds a directory exclusion to Windows Defender 16->110 112 Injects a PE file into a foreign processes 16->112 30 gcWPrHZ.exe 16->30         started        32 powershell.exe 16->32         started        34 schtasks.exe 16->34         started        36 gcWPrHZ.exe 16->36         started        file5 signatures6 process7 file8 56 C:\Users\user\AppData\...\iygpxcCSjijj.exe, PE32 18->56 dropped 58 C:\Users\user\AppData\Local\...\tmp8122.tmp, XML 18->58 dropped 76 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 18->76 78 Machine Learning detection for dropped file 18->78 80 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 18->80 82 Uses schtasks.exe or at.exe to add and modify task schedules 18->82 38 vbc.exe 1 4 18->38         started        42 powershell.exe 6 18->42         started        44 schtasks.exe 18->44         started        46 conhost.exe 18->46         started        84 Adds a directory exclusion to Windows Defender 22->84 86 Injects a PE file into a foreign processes 22->86 48 iygpxcCSjijj.exe 22->48         started        50 powershell.exe 22->50         started        52 schtasks.exe 22->52         started        54 iygpxcCSjijj.exe 22->54         started        88 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 30->88 90 Tries to steal Mail credentials (via file / registry access) 30->90 92 Tries to harvest and steal browser information (history, passwords, etc) 30->92 signatures9 process10 file11 60 C:\Users\user\AppData\Roaming\...\gcWPrHZ.exe, PE32 38->60 dropped 94 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 38->94 96 Tries to steal Mail credentials (via file / registry access) 38->96 98 Hides that the sample has been downloaded from the Internet (zone.identifier) 38->98 signatures12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e399cdab404d5046aba55ff32346f96349d482763a3b1c633c9a8fb594f09a17/
Threat name:
Win32.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2023-03-02 12:54:20 UTC
File Type:
Document
Extracted files:
4
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4om43k2ajvienk5fl7zsgrxzmne5jatwhi5ryyz4tkh3lfhqtilq._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/230303-e5ekpsgb85/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
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
Enumerates physical storage devices
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
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
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e399cdab404d/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/e399cdab404d5046aba55ff32346f96349d482763a3b1c633c9a8fb594f09a17

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 e399cdab404d5046aba55ff32346f96349d482763a3b1c633c9a8fb594f09a17

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2556172/

Comments


Avatar
zbet commented on 2023-03-03 04:31:08 UTC

url : hxxp://198.46.174.170/bg...................................doc