MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9405885336e177508e9e2790e23bb7e8f11a070e3c7262bf70f4da6beb598c75. 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

SHA256 hash: 9405885336e177508e9e2790e23bb7e8f11a070e3c7262bf70f4da6beb598c75
SHA3-384 hash: 9ab94f21bac7b6afe4f9e6d4774646c5cf1b58665652965390968d2994484f8ccfe5c8e0251b7fd09879e46871f0ff4f
SHA1 hash: 7196763064ce24241afea3f8206a493692446cd6
MD5 hash: 40a0ff8405c40399e9fdece7f94725ef
humanhash: robert-carolina-kilo-low
File name:9405885336e177508e9e2790e23bb7e8f11a070e3c7262bf70f4da6beb598c75
Download: download sample
Signature AgentTesla
File size:744'960 bytes
First seen:2020-09-11 13:22:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'665 x AgentTesla, 19'479 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:+OYqjH2RI3MH8+FZzrdaFzJ3pUdcUkEHsrK5kD7GLT/ta2MUe1S:hbHII3MH8+FralR6cmsu5kDSLrta2M5s
Threatray 10'346 similar samples on MalwareBazaar
TLSH 62F412E4EA4D478ECDF80B71062BA45652B27E506063F39FA5C972356A7F3E24023673
Reporter madjack_red
Tags:AgentTesla

Intelligence


File Origin
# of uploads :
1
# of downloads :
133
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Hides that the sample has been downloaded from the Internet (zone.identifier)
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)
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 steal Mail credentials (via file access)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 284510 Sample: ooV1Imy56K Startdate: 11/09/2020 Architecture: WINDOWS Score: 100 47 Multi AV Scanner detection for dropped file 2->47 49 Sigma detected: Scheduled temp file as task from temp location 2->49 51 Multi AV Scanner detection for submitted file 2->51 53 7 other signatures 2->53 7 ooV1Imy56K.exe 6 2->7         started        11 BAVLA.exe 2 2->11         started        13 BAVLA.exe 1 2->13         started        process3 file4 29 C:\Users\user\AppData\Roaming\DAaaHNBs.exe, PE32 7->29 dropped 31 C:\Users\user\AppData\Local\...\tmp999B.tmp, XML 7->31 dropped 33 C:\Users\user\AppData\...\ooV1Imy56K.exe.log, ASCII 7->33 dropped 55 Writes to foreign memory regions 7->55 57 Injects a PE file into a foreign processes 7->57 15 RegSvcs.exe 2 4 7->15         started        19 RegSvcs.exe 7->19         started        21 schtasks.exe 1 7->21         started        23 conhost.exe 11->23         started        25 conhost.exe 13->25         started        signatures5 process6 file7 35 C:\Users\user\AppData\Roaming\...\BAVLA.exe, PE32 15->35 dropped 37 Tries to steal Mail credentials (via file access) 15->37 39 Tries to harvest and steal browser information (history, passwords, etc) 15->39 41 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->41 43 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 19->43 45 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 19->45 27 conhost.exe 21->27         started        signatures8 process9
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-09-09 21:14:33 UTC
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer persistence spyware trojan family:agenttesla
Behaviour
Creates scheduled task(s)
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
AgentTesla Payload
AgentTesla
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: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.

Comments