MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d8ba4833fadaf3045d32509f246aeb93a587b89559b2de4ae32badac2a6ab435. 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: d8ba4833fadaf3045d32509f246aeb93a587b89559b2de4ae32badac2a6ab435
SHA3-384 hash: 2c6b13997d4374bd5433c09f2ae10013ae47eb607b497aac8e9b413cc81b38f4d1534213d23ccc26f1adb18bd5f46ec5
SHA1 hash: fe78886af755624f6067288463f643004e86817f
MD5 hash: cba6c671f7b233074c66b0b3de421d62
humanhash: solar-music-kentucky-arizona
File name:invoice.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:564'224 bytes
First seen:2020-09-09 15:49:59 UTC
Last seen:2020-09-10 07:08:47 UTC
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:L7Bvcdt1+MLiROwB6OpDzM6K2S+8DtGGsoknepPXJ7h1G:tcdb8bBZRzRR8Dg90V1G
Threatray 10'354 similar samples on MalwareBazaar
TLSH D0C422F466EE7F1FDEEC503A295FB180227AD5220493F6D64ADC50B5650F3E02489BB2
Reporter cocaman
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
4
# of downloads :
112
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/58206/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/462285
Signature
.NET source code contains potential unpacker
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for sample
Modifies the hosts file
Multi AV Scanner detection for submitted file
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)
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)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 283642 Sample: invoice.exe Startdate: 09/09/2020 Architecture: WINDOWS Score: 100 38 cdn.onenote.net 2->38 40 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->40 42 Found malware configuration 2->42 44 Multi AV Scanner detection for submitted file 2->44 46 6 other signatures 2->46 9 invoice.exe 3 2->9         started        13 sRfDVrD.exe 2 2->13         started        15 sRfDVrD.exe 1 2->15         started        signatures3 process4 file5 34 C:\Users\user\AppData\...\invoice.exe.log, ASCII 9->34 dropped 56 Writes to foreign memory regions 9->56 58 Injects a PE file into a foreign processes 9->58 60 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 9->60 17 RegSvcs.exe 2 4 9->17         started        22 conhost.exe 13->22         started        24 conhost.exe 15->24         started        signatures6 process7 dnsIp8 36 mail.tiig-eg.com 160.153.128.39, 49734, 587 GODADDY-AMSDE United States 17->36 30 C:\Users\user\AppData\Roaming\...\sRfDVrD.exe, PE32 17->30 dropped 32 C:\Windows\System32\drivers\etc\hosts, ASCII 17->32 dropped 48 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->48 50 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 17->50 52 Tries to steal Mail credentials (via file access) 17->52 54 5 other signatures 17->54 26 reg.exe 1 17->26         started        file9 signatures10 process11 process12 28 conhost.exe 26->28         started       
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/d8ba4833fadaf3045d32509f246aeb93a587b89559b2de4ae32badac2a6ab435/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-09-09 15:51:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3c5eqm723lzqixjskcpsi2xlsosypoevlgzn4sxdfow2yktkwq2q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
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9748273b3c0d1351dd509be12aa2f6787e385beea419de9adfd9be8f999bfa0c
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975bd764510169b28cbde394746ed4c26b05ce0465c2184873d5e1c6e14bfae8
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d9de85befd2a9049c9cea121bd32279d960716c95faa879b2863bba74ed8489f
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dcbfc03cfe9523c25ab335f599cebcbbe8f2439ef7ab973aa9ec0330e4e7d11f
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e2cbded6f889f93a08c2889a5c93385b3b58a569169c17cf08fc667fa8869021
AgentTesla
+ 10'344 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer persistence spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200909-cwzrsswc9s/
Behaviour
Modifies registry key
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
Reads data files stored by FTP clients
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/d8ba4833fadaf3045d32509f246aeb93a587b89559b2de4ae32badac2a6ab435

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

rar 524e1dd0e8d233b367403b5096fb6eedd666424f9253f0c14a3bc11370ef601d

AgentTesla

Executable exe d8ba4833fadaf3045d32509f246aeb93a587b89559b2de4ae32badac2a6ab435

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 524e1dd0e8d233b367403b5096fb6eedd666424f9253f0c14a3bc11370ef601d
Cape
Cape
https://www.capesandbox.com/analysis/58206/

Comments