MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f0999846e27d7158bd06a0c2c141c3dbfd010d3cd4a70c0edec48504539888b4. 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: 5


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

SHA256 hash: f0999846e27d7158bd06a0c2c141c3dbfd010d3cd4a70c0edec48504539888b4
SHA3-384 hash: 6c15bbd4d9441b26958837006a8abfe655f2731f985ba76af4ff8d7807abbe15db0d8ef920965b4f6b0deb43e3a544e9
SHA1 hash: 13a213cb5dc6c6ea63db915f7e18a639f85c04b9
MD5 hash: c43d23e74635df1400eb432c65cdee76
humanhash: alabama-failed-romeo-juliet
File name:PO_#17112020.xlsx
Download: download sample
Signature AgentTesla
Create hunting rule
File size:402'205 bytes
First seen:2020-11-17 06:07:56 UTC
Last seen:Never
File type:Excel file xlsx
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 12288:+WyFLcTzxmNXW9N33u2o3mtBMY43YBNHmc:+WMLKlwuN331oCMp3YTmc
TLSH 438423862B516CAFD0EC42BD05976D8D4A364E522F78ACC65380D40E8DF69B7DA3D0EC
Reporter cocaman
Tags:AgentTesla CVE-2017-11882 xlsx


Avatar
cocaman
Malicious email (T1566.001)
From: ""Horsthuis, M.H.M. (Margot)" <info@dev-webdesignservices.com>" (likely spoofed)
Received: "from newserver.digitonics.com (newserver.digitonics.com [67.225.136.226]) "
Date: "Mon, 16 Nov 2020 20:15:28 -0500"
Subject: "NEW ORDER-17112020"
Attachment: "PO_#17112020.xlsx"

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

MalwareBazaar was able to identify 2 sections in this file using oledump:

Section IDSection sizeSection name
A1281871 bytesOle10Native

Intelligence

File Origin
# of uploads :
1
# of downloads :
104
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Malware.XML.Autoload-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
DNS request
Creating a file in the %AppData% directory
Using the Windows Management Instrumentation requests
Sending an HTTP GET request to an infection source by exploiting the app vulnerability
Creating a process from a recently created file
Result
Verdict:
0
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/538972
Signature
Antivirus detection for dropped file
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
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 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: File Dropped By EQNEDT32EXE
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
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f0999846e27d7158bd06a0c2c141c3dbfd010d3cd4a70c0edec48504539888b4/
Threat name:
Document-Office.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2020-11-17 01:29:31 UTC
File Type:
Document
Extracted files:
16
AV detection:
19 of 29 (65.52%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/201117-tc3zw2xdln/
Behaviour
Enumerates system info in registry
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
Suspicious use of FindShellTrayWindow
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
Blacklisted process makes network request
Executes dropped EXE
AgentTesla
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.

Malspam

AgentTesla

Excel file xlsx f0999846e27d7158bd06a0c2c141c3dbfd010d3cd4a70c0edec48504539888b4

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments