MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f3299da1eb5ad076c503fa440ba15e4bb418fa17b5cf0315620eaecf3b618de5. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments 1

SHA256 hash: f3299da1eb5ad076c503fa440ba15e4bb418fa17b5cf0315620eaecf3b618de5
SHA3-384 hash: 509606a9dfbcd27cea262b459e1920134e0c655f3a8d67cc44442f1affe61a0a23a7c230bd3f27b61e7b5d2821771abb
SHA1 hash: fbd39cda4384a9bef901bb74afe2e42240fde4b2
MD5 hash: 37bdeb7dd32f6bf7ef310ca575f4236d
humanhash: washington-sink-crazy-enemy
File name:Ei76uYS4ahe752B.exe
Download: download sample
Signature AgentTesla
File size:686'080 bytes
First seen:2021-05-04 15:26:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'654 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:+rWDxn/yDKMrnc2nOAXLW80lxMk5UJrVn5YUQUJZ6miBu40BcbxKVnd0i18z/uJn:+tl0lxwVn5YUfomIbx+nd0iW2
Threatray 4'457 similar samples on MalwareBazaar
TLSH 6EE4BD277F689652E4BE5F381835031067F1F159E321C32F696860ADDDE2AC18E637E2
Reporter abuse_ch
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
125
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Result
Verdict:
SUSPICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped 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)
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 AntiVM3
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 404079 Sample: Ei76uYS4ahe752B.exe Startdate: 04/05/2021 Architecture: WINDOWS Score: 100 31 Found malware configuration 2->31 33 Multi AV Scanner detection for dropped file 2->33 35 Multi AV Scanner detection for submitted file 2->35 37 7 other signatures 2->37 7 Ei76uYS4ahe752B.exe 7 2->7         started        process3 file4 19 C:\Users\user\AppData\...\ZYFvmNSaXwQGa.exe, PE32 7->19 dropped 21 C:\...\ZYFvmNSaXwQGa.exe:Zone.Identifier, ASCII 7->21 dropped 23 C:\Users\user\AppData\Local\...\tmpC27C.tmp, XML 7->23 dropped 25 C:\Users\user\...i76uYS4ahe752B.exe.log, ASCII 7->25 dropped 39 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->39 41 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->41 43 Uses schtasks.exe or at.exe to add and modify task schedules 7->43 45 Injects a PE file into a foreign processes 7->45 11 Ei76uYS4ahe752B.exe 2 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 27 caltra.pt 185.11.167.87, 49750, 587 FLESK-ASPT Portugal 11->27 29 mail.caltra.pt 11->29 47 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->47 49 Tries to steal Mail credentials (via file access) 11->49 51 Tries to harvest and steal ftp login credentials 11->51 53 Tries to harvest and steal browser information (history, passwords, etc) 11->53 17 conhost.exe 15->17         started        signatures8 process9
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-05-04 15:26:14 UTC
AV detection:
13 of 28 (46.43%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
bdf79e57b5574f9bafb56f6d0592f5ee429df7eb0ad536fbdb4f2956aae36f87
MD5 hash:
826b29e2a141b055a5491c9d7dc6eea7
SHA1 hash:
af4201362b8603bf7e4b6e2ead1cfb610dd7c0a9
SH256 hash:
f3299da1eb5ad076c503fa440ba15e4bb418fa17b5cf0315620eaecf3b618de5
MD5 hash:
37bdeb7dd32f6bf7ef310ca575f4236d
SHA1 hash:
fbd39cda4384a9bef901bb74afe2e42240fde4b2
Please note that we are no longer able to provide a coverage score for Virus Total.

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Comments



Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-05-04 16:21:00 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [B0009.029] Anti-Behavioral Analysis::Instruction Testing
1) [C0019] Data Micro-objective::Check String
2) [C0026.001] Data Micro-objective::Base64::Encode Data