MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 097ef15c4b39a5c768934359f140c3f41e9fd8cfc00c32edf54c96ae72417ed0. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 097ef15c4b39a5c768934359f140c3f41e9fd8cfc00c32edf54c96ae72417ed0
SHA3-384 hash: 18cea11389006427e4c921330e920882d9944e62aca6900589ae804c60f464fa47f6db70d9756b25e15e9b915208acf6
SHA1 hash: 4b2006eae1408e22a3171f8b9c39b56277ec3112
MD5 hash: 87a8379eafe2d18d2abcd093a2fc8ff5
humanhash: skylark-island-maryland-burger
File name:PO74845675.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:451'072 bytes
First seen:2020-08-04 07:46:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:9gihvYQRuHQIvBkXPsTI7j9aG5HBwNr1fNi6:nhQQRiQIvBkXPsTwj9aG/q3x
Threatray 1'641 similar samples on MalwareBazaar
TLSH 40A4F13A06594F57C3BE69FD4199190102F2CC4A6261EA87FD9072E252F7BFD8371B0A
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: webmail.cyber.net.pk
Sending IP: 203.101.175.37
From: powertr@cyber.net.pk
Subject: AW:Purchase Order
Attachment: PO5643234576.zip (contains "PO74845675.exe")

AgentTesla FTP exfil server:
triathlon-batteries-uk.com:21

Intelligence

File Origin
# of uploads :
1
# of downloads :
73
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/38318/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
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
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/408843
Signature
Contains functionality to register a low level keyboard hook
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
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 256670 Sample: PO74845675.exe Startdate: 04/08/2020 Architecture: WINDOWS Score: 100 29 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->29 31 Sigma detected: Scheduled temp file as task from temp location 2->31 33 Yara detected AgentTesla 2->33 35 5 other signatures 2->35 7 PO74845675.exe 7 2->7         started        process3 file4 19 C:\Users\user\AppData\...\&startupname&.exe, PE32 7->19 dropped 21 C:\...\&startupname&.exe:Zone.Identifier, ASCII 7->21 dropped 23 C:\Users\user\AppData\Local\...\tmp4D24.tmp, XML 7->23 dropped 25 C:\Users\user\AppData\...\PO74845675.exe.log, ASCII 7->25 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 register a low level keyboard hook 7->41 43 Injects a PE file into a foreign processes 7->43 11 PO74845675.exe 15 2 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 27 triathlon-batteries-uk.com 185.36.81.58, 21, 49733, 49734 TELE-ASTeleAsiaLimitedHK Lithuania 11->27 45 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->45 47 Tries to steal Mail credentials (via file access) 11->47 49 Tries to harvest and steal ftp login credentials 11->49 51 2 other signatures 11->51 17 conhost.exe 15->17         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/097ef15c4b39a5c768934359f140c3f41e9fd8cfc00c32edf54c96ae72417ed0/
Threat name:
ByteCode-MSIL.Trojan.NanoBot
Create hunting rule
Status:
Malicious
First seen:
2020-08-03 21:13:23 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=bf7pcxclhgs4o2etinm7cqgd6qpj7wgpyagdf3pvjslk44sbp3ia._file
Verdict:
unknown
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AgentTesla
+ 1'631 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200804-ze4wb6q1g6/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Reads user/profile data of local email clients
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/097ef15c4b39a5c768934359f140c3f41e9fd8cfc00c32edf54c96ae72417ed0

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

zip 82eb50eb85ff4c5a60754c04da58fcd0c9c406440d5c28529428ccce8eca23f9

AgentTesla

Executable exe 097ef15c4b39a5c768934359f140c3f41e9fd8cfc00c32edf54c96ae72417ed0

(this sample)

  
Dropped by
MD5 a34d7944abc8fa1d64d1b28ac90d3ecb
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/38318/
  
Dropped by
SHA256 82eb50eb85ff4c5a60754c04da58fcd0c9c406440d5c28529428ccce8eca23f9

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