MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4c0ba445450f16973c204aaab8265d888df2d38f822fbfcdf15249fbc3863356. 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: 4c0ba445450f16973c204aaab8265d888df2d38f822fbfcdf15249fbc3863356
SHA3-384 hash: e9bdebee189adefeac43b7abc5313e9edc9b5ff2c039ec7955445a815b523d0d58612c1c2815cc6eeb6f6f459194e27c
SHA1 hash: c87d1dba3b9d2dd87ea468c56c263c304a65d3b9
MD5 hash: 3402e6194d0c64353d4faa339848d3d8
humanhash: july-quiet-yankee-delaware
File name:PO.exe
Download: download sample
Signature AgentTesla
File size:688'640 bytes
First seen:2020-08-27 05:39:54 UTC
Last seen:2020-08-27 07:19:09 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:/TFHFuVOiduYYqmZhQ8HEjpAzP0drIfx5V3BcawVwHiHg:1FuVpZDx8Oy70x8xjRcawVzA
Threatray 9'233 similar samples on MalwareBazaar
TLSH EEE412A413EDCF26D9FE0B7B68AD351043F2B85624B4D3099BAD918F18D5F908921B73
Reporter abuse_ch
Tags:AgentTesla exe geo KOR


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: mail-smail-vm83.hanmail.net
Sending IP: 211.231.106.158
From: 한동연 <han7841@hanmail.net>
Subject: 중국 수출용 GE Guernsey Project -LOI-P/O_200827-GE01 발주서 첨부 건
Attachment: GE Guernsey Project -LOI-PO_200827-GE01.CAD.PDF.cab (contains "PO.exe")

Intelligence


File Origin
# of uploads :
2
# of downloads :
85
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Binary contains a suspicious time stamp
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
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)
Sigma detected: Scheduled temp file as task from temp location
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
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 278487 Sample: PO.exe Startdate: 27/08/2020 Architecture: WINDOWS Score: 100 29 Found malware configuration 2->29 31 Multi AV Scanner detection for dropped file 2->31 33 Sigma detected: Scheduled temp file as task from temp location 2->33 35 6 other signatures 2->35 7 PO.exe 5 2->7         started        process3 file4 19 C:\Users\user\AppData\...19cgSKXJTiw.exe, PE32 7->19 dropped 21 C:\Users\user\AppData\Local\...\tmpFAC4.tmp, XML 7->21 dropped 23 C:\Users\user\AppData\Local\...\PO.exe.log, ASCII 7->23 dropped 37 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->37 39 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->39 41 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 7->41 11 PO.exe 2 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 25 smtp.yandex.ru 77.88.21.158, 49724, 587 YANDEXRU Russian Federation 11->25 27 smtp.yandex.com 11->27 43 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->43 45 Tries to steal Mail credentials (via file access) 11->45 47 Tries to harvest and steal ftp login credentials 11->47 49 Tries to harvest and steal browser information (history, passwords, etc) 11->49 17 conhost.exe 15->17         started        signatures8 process9
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Status:
Malicious
First seen:
2020-08-27 05:41:06 UTC
AV detection:
21 of 27 (77.78%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
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.

eb42dbf6cdf432bb37cfd30c892f9a01

AgentTesla

Executable exe 4c0ba445450f16973c204aaab8265d888df2d38f822fbfcdf15249fbc3863356

(this sample)

  
Dropped by
MD5 eb42dbf6cdf432bb37cfd30c892f9a01
  
Delivery method
Distributed via e-mail attachment

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