MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0579b258d0be73b20cd434e8004e2bcd134f3277915f30f743f03f9b55fe0cf6. 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: 7


Intelligence 7 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0579b258d0be73b20cd434e8004e2bcd134f3277915f30f743f03f9b55fe0cf6
SHA3-384 hash: 5cfaa5e6a8f7e0ba0fd7e113bc3c7d8a579acdec97100e6b4ff7219ef1a83aec5069ded73ee76a59cfc0443217ab2c84
SHA1 hash: 0b54e7917de7c55924b0b3082ee95dd39df214e4
MD5 hash: fd6c617a0e1b28942efe0c2586efd2fb
humanhash: echo-paris-bacon-fish
File name:fd6c617a0e1b28942efe0c2586efd2fb.rtf
Download: download sample
Signature AgentTesla
Create hunting rule
File size:12'934 bytes
First seen:2020-12-04 19:44:13 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 384:C7VG98MWdceHw0x90Yra+G8Pg1xVYl8BFr:cVGBG90Yu+G8oVYe
TLSH 8E428EA8ED587221D6425C8FD874FE704A0B787561EB90B173DDA2333F56102DBB3958
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 :
1
# of downloads :
230
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.27301.RtfHeur.BadVer.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.FakeRTF-2.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.RTFFakeVersionWithObjUpdateUKSurfMix.20200514.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a window
Creating a file
Launching a file downloaded from the Internet
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/0579b258d0be73b20cd434e8004e2bcd134f3277915f30f743f03f9b55fe0cf6/results/dashboard
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/556018
Signature
.NET source code contains very large array initializations
Antivirus detection for URL or domain
Document exploit detected (process start blacklist hit)
Drops PE files to the user root directory
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Multi AV Scanner detection for dropped file
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
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file access)
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 327110 Sample: GUDbMcKUJM.rtf Startdate: 04/12/2020 Architecture: WINDOWS Score: 100 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Antivirus detection for URL or domain 2->41 43 Multi AV Scanner detection for dropped file 2->43 45 13 other signatures 2->45 7 EQNEDT32.EXE 12 2->7         started        12 WINWORD.EXE 291 21 2->12         started        process3 dnsIp4 33 216.170.114.70, 49167, 80 AS-COLOCROSSINGUS United States 7->33 29 C:\Users\user\AppData\Local\...\order[1].exe, PE32 7->29 dropped 31 C:\Users\Public\vbc.exe, PE32 7->31 dropped 47 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 7->47 14 vbc.exe 7->14         started        49 Document exploit detected (process start blacklist hit) 12->49 17 taskmgr.exe 12->17         started        19 taskmgr.exe 12->19         started        21 taskmgr.exe 12->21         started        23 4 other processes 12->23 file5 signatures6 process7 signatures8 59 Multi AV Scanner detection for dropped file 14->59 61 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->61 63 Machine Learning detection for dropped file 14->63 65 2 other signatures 14->65 25 vbc.exe 2 14->25         started        process9 dnsIp10 35 us2.smtp.mailhostbox.com 208.91.199.224, 49168, 587 PUBLIC-DOMAIN-REGISTRYUS United States 25->35 37 smtp.andms-kr.com 25->37 51 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 25->51 53 Tries to steal Mail credentials (via file access) 25->53 55 Tries to harvest and steal ftp login credentials 25->55 57 Tries to harvest and steal browser information (history, passwords, etc) 25->57 signatures11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0579b258d0be73b20cd434e8004e2bcd134f3277915f30f743f03f9b55fe0cf6/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2020-12-04 19:12:15 UTC
AV detection:
15 of 29 (51.72%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/201204-5lfrsl9y12/
Behaviour
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
Drops file in Windows directory
Suspicious use of SetThreadContext
Loads dropped DLL
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.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/0579b258d0be73b20cd434e8004e2bcd134f3277915f30f743f03f9b55fe0cf6

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 0579b258d0be73b20cd434e8004e2bcd134f3277915f30f743f03f9b55fe0cf6

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/889306/
  
Delivery method
Distributed via web download

Comments