MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 761923829ed3af2fb0fee8c2be89bdb08c50e391db91c21ef18e16ccafcb6b0b. 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: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 761923829ed3af2fb0fee8c2be89bdb08c50e391db91c21ef18e16ccafcb6b0b
SHA3-384 hash: 990e8940857d5d265d33e4021236d494a3cb46324ab017cc6b0558072b29dff9539b603b9ffb94d2f2a75dbc07465fcd
SHA1 hash: a79f7db8fcad62bbed01ed48fe7bf500e58bec64
MD5 hash: e2d0fc6a8f28d45f470888d5ab4a2ee3
humanhash: alaska-hot-east-october
File name:IMG08042020.bat
Download: download sample
Signature AgentTesla
Create hunting rule
File size:896'512 bytes
First seen:2020-08-04 07:44:43 UTC
Last seen:2020-08-04 09:09:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:VQTbcPgYxmOy+2Do4pPeRH89fI5Btg3YU6xV3gx6YmDNcmGIcr4JjzSkeWDVQ:20IYxPYVZlGBCIU6g7mDNcpjVDaV
TLSH 0B15AEC6F5809D50D8294E3B493359914B33AC6BEF02C607349CB65A7BF72866A35F83
Reporter abuse_ch
Tags:AgentTesla bat


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: fococonsultores.net
Sending IP: 82.223.29.21
From: Shaikh Jaffar Ali <sales@mf-industry.com.ae>
Reply-To: sales@mf-industry.com.ae
Subject: Quotations for the month of August
Attachment: IMG008042020.7z (contains "IMG08042020.bat")

AgentTesla SMTP exfil server:
mail.magicpharma.pt:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
70
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/38314/
Detection(s):
SecuriteInfo.com.CIL.HeapOverride.Heur.30768.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/408839
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Injects a PE file into a foreign processes
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 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)
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/761923829ed3af2fb0fee8c2be89bdb08c50e391db91c21ef18e16ccafcb6b0b/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-08-04 07:46:09 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=oymshau62oxs7mh65dbl5cn5wcgfby4r3oi4ehxrrylmzl6lnmfq._file
Verdict:
unknown
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200804-hwe8vfajrx/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
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.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/761923829ed3af2fb0fee8c2be89bdb08c50e391db91c21ef18e16ccafcb6b0b

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
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Create hunting rule
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

7z 9ccc25f5d3eeca17078742ba7a536f5d14266c5e0120023a193ecdbc26939f08

AgentTesla

Executable exe 761923829ed3af2fb0fee8c2be89bdb08c50e391db91c21ef18e16ccafcb6b0b

(this sample)

  
Dropped by
MD5 67d2b9102bfb8af90738c585139df2b8
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/38314/
  
Dropped by
SHA256 9ccc25f5d3eeca17078742ba7a536f5d14266c5e0120023a193ecdbc26939f08

Comments