MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4a57c9dbb7a6ee86c29c5e8b14e2f20dabcb393d7d4223554f269c17d132be51. 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: 4a57c9dbb7a6ee86c29c5e8b14e2f20dabcb393d7d4223554f269c17d132be51
SHA3-384 hash: ba74791ff46dd38643fe4724c8e832ea9a26edb44911d131cd81a492efc9bb7c3dbc992a4cdf2245ed46c44f62d16469
SHA1 hash: 76082d203715494de742165ce691a5be34a09cc1
MD5 hash: ccf4066a6b73e73c1a1ceef7061dd5c7
humanhash: lamp-mango-crazy-video
File name:INQUIRY.exe
Download: download sample
Signature AgentTesla
File size:501'760 bytes
First seen:2020-07-31 13:33:33 UTC
Last seen:2020-07-31 14:49:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744
ssdeep 12288:ey4gK3TF68foT3SzKlx9LhoZ1ZEMnEYXTwg28dtCu44KUIJU:ey4gK3Jy/9Lo6M5XTwgdScyy
TLSH C0B4D04DB0DA250AF45631BF9FF8819BCEAAE16F5283466B127511D7813CB486FC1E32
Reporter @James_inthe_box
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
47
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
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 255402 Sample: INQUIRY.exe Startdate: 31/07/2020 Architecture: WINDOWS Score: 100 28 g.msn.com 2->28 30 asf-ris-prod-neurope.northeurope.cloudapp.azure.com 2->30 36 Found malware configuration 2->36 38 Sigma detected: Scheduled temp file as task from temp location 2->38 40 Yara detected AgentTesla 2->40 42 5 other signatures 2->42 8 INQUIRY.exe 7 2->8         started        signatures3 process4 file5 20 C:\Users\user\AppData\...\&startupname&.exe, PE32 8->20 dropped 22 C:\Users\user\AppData\Local\...\tmp3BFF.tmp, XML 8->22 dropped 24 C:\...\&startupname&.exe:Zone.Identifier, ASCII 8->24 dropped 26 C:\Users\user\AppData\...\INQUIRY.exe.log, ASCII 8->26 dropped 44 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->44 46 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 8->46 48 Injects a PE file into a foreign processes 8->48 50 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 8->50 12 INQUIRY.exe 4 8->12         started        16 schtasks.exe 1 8->16         started        signatures6 process7 dnsIp8 32 smtp.millndustries.com 12->32 34 us2.smtp.mailhostbox.com 208.91.199.224, 49741, 587 PUBLIC-DOMAIN-REGISTRYUS United States 12->34 52 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 12->52 54 Tries to steal Mail credentials (via file access) 12->54 56 Tries to harvest and steal ftp login credentials 12->56 58 2 other signatures 12->58 18 conhost.exe 16->18         started        signatures9 process10
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-07-31 13:32:38 UTC
AV detection:
23 of 31 (74.19%)
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 WriteProcessMemory
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of SetThreadContext
Reads user/profile data of local email clients
Reads user/profile data of web browsers
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.

  
Delivery method
Other

Comments