MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ff5843707b8c294ad421fd0095962d8117ea0c5c83b18e1825bf1bb1861f3820. 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

SHA256 hash: ff5843707b8c294ad421fd0095962d8117ea0c5c83b18e1825bf1bb1861f3820
SHA3-384 hash: f2d643ff7da659116440b2199a4dcdb974bbcd444c9f96b73209de891a913ea39b3aa3e76a42767880ef28cbf83f2016
SHA1 hash: d7a60c032f6eff7c4d5d8a7545125548c3f74261
MD5 hash: b3c88165b701b194141aa9948004a402
humanhash: ack-oregon-arkansas-pluto
File name:PAYMENT FOR MS FOB 4-25.exe
Download: download sample
Signature AgentTesla
File size:836'096 bytes
First seen:2021-06-01 06:30:08 UTC
Last seen:2021-06-01 13:30:31 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:5FyAHG0Hb6N+57TkRX6v2xGZ3NQ9n4TmN2eovL8x0AIK9JPK7rHxrgwWpL8+eZ4:PRdTipaK4Icj8EGJOrRr+eZ
Threatray 5'445 similar samples on MalwareBazaar
TLSH 0F05E122129A5FE4E27DC7F850A4D87303F4B9D3EB11CB3DADA960981451B8486D27BF
Reporter abuse_ch
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
5
# of downloads :
105
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PAYMENT FOR MS FOB 4-25.exe
Verdict:
Malicious activity
Analysis date:
2021-06-01 06:40:57 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
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)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Suspicious Process Start Without DLL
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 427402 Sample: PAYMENT FOR MS FOB 4-25.exe Startdate: 01/06/2021 Architecture: WINDOWS Score: 100 37 Found malware configuration 2->37 39 Multi AV Scanner detection for dropped file 2->39 41 Multi AV Scanner detection for submitted file 2->41 43 10 other signatures 2->43 7 PAYMENT FOR MS FOB 4-25.exe 7 2->7         started        process3 file4 29 C:\Users\user\AppData\Roaming\RcBGeyxjP.exe, PE32 7->29 dropped 31 C:\Users\user\AppData\Local\...\tmp425B.tmp, XML 7->31 dropped 33 C:\Users\...\PAYMENT FOR MS FOB 4-25.exe.log, ASCII 7->33 dropped 45 Writes to foreign memory regions 7->45 47 Adds a directory exclusion to Windows Defender 7->47 49 Injects a PE file into a foreign processes 7->49 11 RegSvcs.exe 7->11         started        15 powershell.exe 23 7->15         started        17 powershell.exe 26 7->17         started        19 2 other processes 7->19 signatures5 process6 dnsIp7 35 smtp.vivaldi.net 31.209.137.12, 49737, 587 HRINGDU-ASIS Iceland 11->35 51 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->51 53 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->53 55 Tries to steal Mail credentials (via file access) 11->55 57 3 other signatures 11->57 21 conhost.exe 15->21         started        23 conhost.exe 17->23         started        25 conhost.exe 19->25         started        27 conhost.exe 19->27         started        signatures8 process9
Threat name:
Win32.Trojan.Wacatac
Status:
Malicious
First seen:
2021-05-31 23:25:22 UTC
AV detection:
9 of 37 (24.32%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla evasion keylogger spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Looks for VMWare Tools registry key
AgentTesla Payload
Looks for VirtualBox Guest Additions in registry
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:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

Executable exe ff5843707b8c294ad421fd0095962d8117ea0c5c83b18e1825bf1bb1861f3820

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments