MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 13ba7d40a2b483bd278a526c6c67f5988e1d53ffdec5398398dad6f0035da174. 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: 6


Intelligence 6 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 13ba7d40a2b483bd278a526c6c67f5988e1d53ffdec5398398dad6f0035da174
SHA3-384 hash: 76723cef0848472d0afcde582f5fe045a07ab4b20b797378965a7b2911ff6fd41efa2f167fea4e7f48d1a23c31193b6a
SHA1 hash: 7525ebe6511728b04010a8b46edf0ca6115232df
MD5 hash: e875dcafaecaba72e8eb95d3d785c994
humanhash: romeo-william-north-violet
File name:e875dcafaecaba72e8eb95d3d785c994.rtf
Download: download sample
Signature AgentTesla
Create hunting rule
File size:12'329 bytes
First seen:2020-11-06 17:14:00 UTC
Last seen:2020-11-07 16:12:41 UTC
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 192:TOfTwkhH4axck3Vad9vK7bhuWcnH/hLUk0xlAzMkb57nLA0gWeFheMfC8Udz:TIT/XczvAuW+JElyMU3heFhe99
TLSH 1A428D921CE42589E36F42A50F28F2A8072EF65E23C709F177ACE9A23F365259770414
Reporter abuse_ch
Tags:AgentTesla rtf

Office OLE Information

This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.

OLE dump

Intelligence

File Origin
# of uploads :
3
# of downloads :
146
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
TwinWave.EvilDoc.RTFFakeVersionWithObjUpdateUKSurfMix.20200514.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a window
Creating a file
Creating a process with a hidden window
DNS request
Adding an access-denied ACE
Using the Windows Management Instrumentation requests
Sending an HTTP GET request
Launching a file downloaded from the Internet
Sending a TCP request to an infection source
Unauthorized injection to a recently created process by context flags manipulation
Creating a process from a recently created file
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/523506
Signature
Antivirus detection for dropped file
Connects to a pastebin service (likely for C&C)
Drops PE files to the user root directory
Hides threads from debuggers
Injects a PE file into a foreign processes
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Office equation editor drops PE file
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: Droppers Exploiting CVE-2017-11882
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: Executables Started in Suspicious Folder
Sigma detected: Execution in Non-Executable Folder
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: Suspicious Program Location Process Starts
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Mail credentials (via file access)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 310865 Sample: pgknUuXJCT.rtf Startdate: 06/11/2020 Architecture: WINDOWS Score: 100 31 Multi AV Scanner detection for domain / URL 2->31 33 Antivirus detection for dropped file 2->33 35 Multi AV Scanner detection for submitted file 2->35 37 10 other signatures 2->37 7 EQNEDT32.EXE 12 2->7         started        12 WINWORD.EXE 291 23 2->12         started        process3 dnsIp4 27 192.3.141.134, 49167, 80 AS-COLOCROSSINGUS United States 7->27 23 C:\Users\user\AppData\Local\...\aha[1].exe, PE32 7->23 dropped 25 C:\Users\Public\vbc.exe, PE32 7->25 dropped 45 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 7->45 14 vbc.exe 12 7->14         started        file5 signatures6 process7 dnsIp8 29 hastebin.com 104.24.126.89, 443, 49168 CLOUDFLARENETUS United States 14->29 47 Antivirus detection for dropped file 14->47 49 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->49 51 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 14->51 53 2 other signatures 14->53 18 vbc.exe 2 14->18         started        21 timeout.exe 14->21         started        signatures9 process10 signatures11 39 Tries to steal Mail credentials (via file access) 18->39 41 Tries to harvest and steal ftp login credentials 18->41 43 Tries to harvest and steal browser information (history, passwords, etc) 18->43
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/13ba7d40a2b483bd278a526c6c67f5988e1d53ffdec5398398dad6f0035da174/
Threat name:
Win32.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2020-11-06 12:29:10 UTC
AV detection:
14 of 29 (48.28%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=co5h2qfcwsb32j4kkjwgyz7vtchb2u7733ctta4y3llpaa25uf2a._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
spyware
Link:
https://tria.ge/reports/201106-q2b9q9wha6/
Behaviour
Delays execution with timeout.exe
Launches Equation Editor
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Checks processor information in registry
Enumerates system info in registry
Office loads VBA resources, possible macro or embedded object present
Program crash
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
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
Blacklisted process makes network request
Executes dropped EXE
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:Email_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Email in files like avemaria
Rule name:IPPort_combo_mem
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:Select_from_enumeration
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:SharedStrings
Create hunting rule
Author:Katie Kleemola
Description:Internal names found in LURK0/CCTV0 samples
Rule name:UAC_bypass_bin_mem
Create hunting rule
Author:James_inthe_box
Description:UAC bypass in files like avemaria

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 13ba7d40a2b483bd278a526c6c67f5988e1d53ffdec5398398dad6f0035da174

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/783759/
  
Delivery method
Distributed via web download

Comments