MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 723ffa5603c25d3066479031406a8202e4dd62510c42b0afe4d317c90f121edd. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments

SHA256 hash: 723ffa5603c25d3066479031406a8202e4dd62510c42b0afe4d317c90f121edd
SHA3-384 hash: 3d68dfc3d905ee17ee1a6b21443d538ee98df86adccec900fc326c114339303e40bbb8f880681544594dd49e6b933e9b
SHA1 hash: 07298d3a76e18c2dac3497044557169d25b107c4
MD5 hash: 6d6a5e7a07e771b0dd8629343477edbc
humanhash: fourteen-colorado-hawaii-earth
File name:LDR T's and C's June 2020.Payment reference.exe
Download: download sample
Signature AgentTesla
File size:867'328 bytes
First seen:2020-08-05 06:31:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 4bae7147ec04d935db5914fb885560bb (11 x AgentTesla, 3 x MassLogger, 2 x AZORult)
ssdeep 12288:Kz7G/lsTGbsiZQfwgZLObQINANWz3O6Ex7FxBwWId+XhMHp:KetNafLLOM9QKlNwWC+Rip
Threatray 11'217 similar samples on MalwareBazaar
TLSH FA05BF1EBFE08437D1B2163DBC1BAFA45C3EBD112D289A467BE4DD0C5E386503A25297
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: mail.einihutintl.gq
Sending IP: 161.129.67.162
From: Thobela Mqikela<Thobela.Mqikela@absamail.co.za>
Reply-To: <annewilegama@gmail.com>
Subject: RE: FW: PROFORMA#378-03.06.2020
Attachment: LDR Ts and Cs June 2020.Payment reference.rar (contains "LDR T's and C's June 2020.Payment reference.exe")

AgentTesla SMTP exfil server:
mail.mycheaprentals.com:587

AgentTesla SMTP exfil email address:
account@mycheaprentals.com

Intelligence


File Origin
# of uploads :
1
# of downloads :
70
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Launching a process
Sending a UDP request
Using the Windows Management Instrumentation requests
Reading critical registry keys
Moving of the original file
Stealing user critical data
Unauthorized injection to a system process
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Contains functionality to detect sleep reduction / modifications
Delayed program exit found
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
Drops VBS files to the startup folder
Found malware configuration
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Maps a DLL or memory area into another process
Moves itself to temp directory
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)
Queues an APC in another process (thread injection)
Sigma detected: Drops script at startup location
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)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 257317 Sample: LDR T's and C's June 2020.P... Startdate: 05/08/2020 Architecture: WINDOWS Score: 100 32 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->32 34 Found malware configuration 2->34 36 Detected unpacking (changes PE section rights) 2->36 38 9 other signatures 2->38 7 wscript.exe 1 2->7         started        9 LDR T's and C's June 2020.Payment reference.exe 2->9         started        process3 signatures4 12 LDR T's and C's June 2020.Payment reference.exe 7->12         started        48 Writes to foreign memory regions 9->48 50 Allocates memory in foreign processes 9->50 52 Maps a DLL or memory area into another process 9->52 54 Queues an APC in another process (thread injection) 9->54 15 notepad.exe 1 9->15         started        17 LDR T's and C's June 2020.Payment reference.exe 2 9->17         started        process5 signatures6 56 Writes to foreign memory regions 12->56 58 Allocates memory in foreign processes 12->58 60 Maps a DLL or memory area into another process 12->60 19 LDR T's and C's June 2020.Payment reference.exe 2 12->19         started        23 notepad.exe 1 12->23         started        62 Drops VBS files to the startup folder 15->62 64 Delayed program exit found 15->64 process7 dnsIp8 28 mail.mycheaprentals.com 162.241.253.93, 49738, 587 UNIFIEDLAYER-AS-1US United States 19->28 30 192.168.2.1 unknown unknown 19->30 40 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 19->40 42 Moves itself to temp directory 19->42 44 Tries to steal Mail credentials (via file access) 19->44 46 2 other signatures 19->46 26 C:\Users\...\LDR T's and C's June 2020.vbs, ASCII 23->26 dropped file9 signatures10
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2020-08-04 21:14:43 UTC
AV detection:
27 of 29 (93.10%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
upx keylogger stealer spyware trojan family:agenttesla
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: RenamesItself
Suspicious use of SetThreadContext
Drops startup file
Reads user/profile data of web browsers
Reads data files stored by FTP clients
Reads user/profile data of local email clients
UPX packed file
AgentTesla Payload
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:Agenttesla_type2
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information


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

Malspam

AgentTesla

Executable exe 723ffa5603c25d3066479031406a8202e4dd62510c42b0afe4d317c90f121edd

(this sample)

  
Delivery method
Distributed via e-mail attachment

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