MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1aa7a26dc92fbd8b4bb9ddd986a7160525ed218434d15d7bfc13e8b4dc5a7275. 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: 1aa7a26dc92fbd8b4bb9ddd986a7160525ed218434d15d7bfc13e8b4dc5a7275
SHA3-384 hash: 52f0565af05a3fa68c30d3a10be38f4a999da78f4ce23ef48708bbc55a702393006b09f4cbb3afb04789e4b4607b0d13
SHA1 hash: ea29faff6878d5d7be98b5420729b33c9bceeecd
MD5 hash: e7649191e5d94ae886658edb16efcb01
humanhash: ohio-shade-pennsylvania-delta
File name:PO-9464659-0756-Order_Quote,xlxs.exe
Download: download sample
Signature AgentTesla
File size:601'088 bytes
First seen:2020-08-14 09:52:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:G7PJ/D8xLfMcRzISRXZvswCZUuiLhHUu5sZ:uPR8xjM7cSwCjkVO
Threatray 10'223 similar samples on MalwareBazaar
TLSH 83D4CE3122A85F12F17DABBC9271110503F3A919D737EE4DFEB602A90D6ABD18273716
Reporter abuse_ch
Tags:AgentTesla exe geo KOR


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: mail-smail-vm45.hanmail.net
Sending IP: 203.133.180.233
From: 소일네일 <sengill@hanmail.net>
Subject: 새로운 구매 주수/샘플 및 사양
Attachment: PO-9464659-0756-Order_Quote,xlxs.z (contains "PO-9464659-0756-Order_Quote,xlxs.exe")

Intelligence


File Origin
# of uploads :
1
# of downloads :
63
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Creating a process with a hidden window
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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: 267124 Sample: PO-9464659-0756-Order_Quote... Startdate: 15/08/2020 Architecture: WINDOWS Score: 100 33 Found malware configuration 2->33 35 Sigma detected: Scheduled temp file as task from temp location 2->35 37 Yara detected AgentTesla 2->37 39 7 other signatures 2->39 7 PO-9464659-0756-Order_Quote,xlxs.exe 7 2->7         started        process3 file4 19 C:\Users\user\AppData\...\mUZzOBrQzt.exe, PE32 7->19 dropped 21 C:\Users\...\mUZzOBrQzt.exe:Zone.Identifier, ASCII 7->21 dropped 23 C:\Users\user\AppData\Local\...\tmp8AD5.tmp, XML 7->23 dropped 25 PO-9464659-0756-Order_Quote,xlxs.exe.log, ASCII 7->25 dropped 41 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->41 43 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->43 45 Injects a PE file into a foreign processes 7->45 11 PO-9464659-0756-Order_Quote,xlxs.exe 2 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 27 smtp.yandex.ru 77.88.21.158, 49733, 587 YANDEXRU Russian Federation 11->27 29 192.168.2.1 unknown unknown 11->29 31 smtp.yandex.com 11->31 47 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->47 49 Tries to steal Mail credentials (via file access) 11->49 51 Tries to harvest and steal ftp login credentials 11->51 53 Tries to harvest and steal browser information (history, passwords, etc) 11->53 17 conhost.exe 15->17         started        signatures8 process9
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-08-14 09:53:05 UTC
AV detection:
23 of 29 (79.31%)
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.

Malspam

AgentTesla

Executable exe 1aa7a26dc92fbd8b4bb9ddd986a7160525ed218434d15d7bfc13e8b4dc5a7275

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments