MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d03bb14b3852574a34043130102a04235da51cc6ccef5f9204df2d671e840c1d. 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 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d03bb14b3852574a34043130102a04235da51cc6ccef5f9204df2d671e840c1d
SHA3-384 hash: 5dafd3fd78e8b987e87c17421649df3cdedea64e12006da6495467e8ffc6854504afb4c042119f68f6d9b6fd3a20e09d
SHA1 hash: fd8d3032ac384e136630d82e7733610a95a67d9e
MD5 hash: 8ccdf88e1aabc883233a2893675f2035
humanhash: iowa-connecticut-social-bravo
File name:8ccdf88e1aabc883233a2893675f2035
Download: download sample
Signature AgentTesla
Create hunting rule
File size:293'130 bytes
First seen:2024-04-17 03:34:27 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 3072:IsXvKMEesXvKMEesXvKMEesXvKMEesXvKMExa7tOYx4SQK1:JKMeKMeKMeKMeKMRNxB1
TLSH T17854482ED34B02698F520372AB1B1E95A6BDBA3EF39051B1342C433533D9C7D52266BD
TrID 71.4% (.PZ2) Poser pose (12500/1/4)
28.5% (.RTF) Rich Text Format (5000/1)
Reporter zbetcheckin
Tags:AgentTesla CVE-2017-11882 rtf

Intelligence

File Origin
# of uploads :
1
# of downloads :
119
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
d03bb14b3852574a34043130102a04235da51cc6ccef5f9204df2d671e840c1d.rtf
Verdict:
No threats detected
Analysis date:
2024-04-17 03:34:49 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/150e4a02-f689-43e0-be3e-f992da3b7080

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
Using the Windows Management Instrumentation requests
Creating a window
DNS request
Creating a file in the %AppData% directory
Сreating synchronization primitives
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a service
Creating a process with a hidden window
Creating a file
Connection attempt
Sending a custom TCP request
Reading critical registry keys
Moving a file to the Program Files subdirectory
Replacing files
Setting a keyboard event handler
Connection attempt by exploiting the app vulnerability
Launching a file downloaded from the Internet
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Sending a custom TCP request by exploiting the app vulnerability
Creating a process from a recently created file
Enabling autorun by creating a file
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/d03bb14b3852574a34043130102a04235da51cc6ccef5f9204df2d671e840c1d/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/661f436747bfd8641ead1833/reports/b8407120-3ccc-42c4-807b-5a5363fe25be/overview
Verdict:
Malicious
Labled as:
Exploit.RTF
Link:
https://www.hybrid-analysis.com/sample/d03bb14b3852574a34043130102a04235da51cc6ccef5f9204df2d671e840c1d
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/1427149
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Contains functionality to log keystrokes (.Net Source)
Document exploit detected (process start blacklist hit)
Drops PE files with a suspicious file extension
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Installs new ROOT certificates
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 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)
Sigma detected: Equation Editor Network Connection
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Sigma detected: Suspicious Microsoft Office Child Process
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 Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1427149 Sample: msXkgFIUyS.rtf Startdate: 17/04/2024 Architecture: WINDOWS Score: 100 60 Multi AV Scanner detection for domain / URL 2->60 62 Found malware configuration 2->62 64 Malicious sample detected (through community Yara rule) 2->64 66 18 other signatures 2->66 8 WINWORD.EXE 336 14 2->8         started        10 taskeng.exe 2->10         started        process3 process4 12 EQNEDT32.EXE 11 8->12         started        17 conhost.exe 8->17         started        19 EQNEDT32.EXE 8->19         started        21 aXivIyuIukeG.exe 10->21         started        dnsIp5 58 covid19help.top 104.21.83.128, 443, 49161 CLOUDFLARENETUS United States 12->58 50 C:\Users\user\AppData\...\obiouhj758463.scr, PE32 12->50 dropped 52 C:\Users\user\AppData\Local\...\xobizx[1].scr, PE32 12->52 dropped 92 Installs new ROOT certificates 12->92 94 Office equation editor establishes network connection 12->94 96 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 12->96 23 obiouhj758463.scr 1 10 12->23         started        98 Multi AV Scanner detection for dropped file 21->98 100 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 21->100 102 Machine Learning detection for dropped file 21->102 104 2 other signatures 21->104 27 aXivIyuIukeG.exe 21->27         started        30 powershell.exe 21->30         started        32 powershell.exe 21->32         started        34 schtasks.exe 21->34         started        file6 signatures7 process8 dnsIp9 46 C:\Users\user\AppData\...\aXivIyuIukeG.exe, PE32 23->46 dropped 48 C:\Users\user\AppData\Local\...\tmp63D2.tmp, XML 23->48 dropped 76 Multi AV Scanner detection for dropped file 23->76 78 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 23->78 80 Machine Learning detection for dropped file 23->80 90 3 other signatures 23->90 36 obiouhj758463.scr 23->36         started        40 powershell.exe 4 23->40         started        42 powershell.exe 4 23->42         started        44 schtasks.exe 23->44         started        56 api.ipify.org 27->56 82 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 27->82 84 Tries to steal Mail credentials (via file / registry access) 27->84 86 Tries to harvest and steal browser information (history, passwords, etc) 27->86 88 Installs a global keyboard hook 27->88 file10 signatures11 process12 dnsIp13 54 api.ipify.org 104.26.13.205, 443, 49162, 49163 CLOUDFLARENETUS United States 36->54 68 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 36->68 70 Tries to steal Mail credentials (via file / registry access) 36->70 72 Installs a global keyboard hook 36->72 74 Installs new ROOT certificates 40->74 signatures14
Score:
89%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/d03bb14b3852574a34043130102a04235da51cc6ccef5f9204df2d671e840c1d
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/d03bb14b3852574a34043130102a04235da51cc6ccef5f9204df2d671e840c1d/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-04-15 20:09:21 UTC
File Type:
Document
Extracted files:
3
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2a53cszykjluunaegeybakqeeno2khggztxv7eqe34wwohuebqoq._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240417-d5by5seb2t/
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
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
Looks up external IP address via web service
Executes dropped EXE
Loads dropped DLL
Reads WinSCP keys stored on the system
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
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/d03bb14b3852574a34043130102a04235da51cc6ccef5f9204df2d671e840c1d

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 d03bb14b3852574a34043130102a04235da51cc6ccef5f9204df2d671e840c1d

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2814794/

Comments


Avatar
zbet commented on 2024-04-17 03:34:28 UTC

url : hxxps://covid19help.top/xobizx.doc