MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 da38a498b2a5ee6174ae4f7afd910eeebdcaed46353e503610b85b3199af067c. 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: da38a498b2a5ee6174ae4f7afd910eeebdcaed46353e503610b85b3199af067c
SHA3-384 hash: 2b4f2cefa4952195b17fbd39c61cd4a415ebcf39440466ea7cb15c7c1e8973545750ba788db47cb3a368baaa4174feb3
SHA1 hash: 78ab76e68407760afd3cc1211727822a8a9c758b
MD5 hash: 24545f0cf8b2cb8fa37c02f5371c015a
humanhash: fish-india-pluto-missouri
File name:swift-ref_inv00891 (2).exe
Download: download sample
Signature AgentTesla
File size:730'112 bytes
First seen:2020-07-31 11:33:33 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744
ssdeep 12288:xHmFuQiSf06YFjXTQiN66VMAD/exsHXcetF2ZzRh/P8g/WzHwQP7r9r/+ppppppp:xHmFuQi1tzN6yMADh3dtF0th/R+1q
TLSH 81F49C88F4C51154EC19B7755EBAC87A8A23FDBEA970401F25ED3D673BBF3862411822
Reporter @abuse_ch
Tags:AgentTesla exe


Twitter
@abuse_ch
Malspam distributing AgentTesla:

HELO: shipping.sinosteel.com
Sending IP: 103.99.1.149
From: ACCOUNT DEPERTMENT<<accounts01@shipping.sinosteel.com>
Subject: RE:TT PAYMENT ADVICE
Attachment: swift-ref_inv00891 2.zip (contains "swift-ref_inv00891 (2).exe")

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

Intelligence


File Origin
# of uploads :
1
# of downloads :
33
Origin country :
FR FR
Mail intelligence
Geo location:
IT Italy
Volume:
Low
Vendor Threat Intelligence
Gathering data
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
88 / 100
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Hides that the sample has been downloaded from the Internet (zone.identifier)
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)
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 steal Mail credentials (via file access)
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-07-31 11:35:07 UTC
AV detection:
24 of 31 (77.42%)
Threat level
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla persistence
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of local email clients
Reads user/profile data of web browsers
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.

8c8b6c7be0a84cbd4f772b732838fc76

AgentTesla

Executable exe da38a498b2a5ee6174ae4f7afd910eeebdcaed46353e503610b85b3199af067c

(this sample)

  
Dropped by
MD5 8c8b6c7be0a84cbd4f772b732838fc76
  
Delivery method
Distributed via e-mail attachment

Comments