MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 891aad4c074da1158dbb19b406248a8c70b22f589f57225a8e12261c4298c925. 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


Intelligence File information Yara 3 Comments

SHA256 hash: 891aad4c074da1158dbb19b406248a8c70b22f589f57225a8e12261c4298c925
SHA3-384 hash: 05ebd6f98edfaab7d11f6c8475d7989c53f0efc2e7e77c3088b0f7e13127cc0ab753b18a21af96bca76a099f19373488
SHA1 hash: 8f39c08d0b14a6be21dcbbbda541012a8c0c9082
MD5 hash: d3a47dde867f6f4b101b3d723b3c12a5
humanhash: mirror-salami-angel-mockingbird
File name:Scanned doc.exe
Download: download sample
Signature AgentTesla
File size:491'008 bytes
First seen:2020-07-31 11:33:30 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744
ssdeep 12288:HsgL+aJ2puFRmI1/UQHp/bqsXJuPLgKFxVZBy/8IonJzIjR:HsgL+aJ2pgRmE/JJ/nJ6LgEhyzYIV
TLSH ACA4DF44F0DAE51BC03576B59FCCC299CEEEB0E846B3432B329967D790E5B468AC1532
Reporter @abuse_ch
Tags:AgentTesla exe


Twitter
@abuse_ch
Malspam distributing AgentTesla:

HELO: hwsrv-749673.hostwindsdns.com
Sending IP: 192.236.193.181
From: Catherine Sun <Sun@wamtruck.com>
Subject: REQUEST SOA PAYMENT DETAILS- /JUNE/JULY/2020.
Attachment: Scanned doc.pdf.rar (contains "Scanned doc.exe")

AgentTesla SMTP exfil server:
us2.smtp.mailhostbox.com:587

Intelligence


File Origin
# of uploads :
1
# of downloads :
33
Origin country :
FR FR
Mail intelligence
Geo location:
Global
Volume:
Low
Vendor Threat Intelligence
Gathering data
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
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:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-07-31 11:35:06 UTC
AV detection:
22 of 31 (70.97%)
Threat level
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Reads user/profile data of local email clients
Reads data files stored by FTP clients
AgentTesla Payload
AgentTesla
Threat name:
Kryptik
Score:
1.00

Yara Signatures


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 891aad4c074da1158dbb19b406248a8c70b22f589f57225a8e12261c4298c925

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments