MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf3d312e54d1b1246c3cad4970cce280dceaa212ffccd3a709e801de3f6d28ca. 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: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bf3d312e54d1b1246c3cad4970cce280dceaa212ffccd3a709e801de3f6d28ca
SHA3-384 hash: be64be82796ae5ba8524e5908ff8415dacc7776569246dba9494b994ccd7351712ad68eae28b4a49a94f8230ec101b02
SHA1 hash: 628d8d039ba90e5f55c809d3cc42ceb414aad50d
MD5 hash: 5db7a7d77d2abb0378d2a7eda4f72ee8
humanhash: mississippi-jig-september-missouri
File name:SCAN_039.EXE
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'026'048 bytes
First seen:2020-07-30 10:45:03 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 24576:Ky4zL+x9QyogBaNEvl9pWpc+IQI2cThdgSI:qzCxfogBaN+sHIQI2cfgS
Threatray 11'240 similar samples on MalwareBazaar
TLSH 6B25CF693240DA9DC56E0F358C26C80096F1BC7A4F63E68F7CD37BAD1E7B2564A22147
Reporter cocaman
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
77
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/35506/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
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/403869
Signature
Found malware configuration
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
Moves itself to temp directory
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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 254237 Sample: SCAN_039.EXE Startdate: 30/07/2020 Architecture: WINDOWS Score: 100 57 g.msn.com 2->57 59 asf-ris-prod-neurope.northeurope.cloudapp.azure.com 2->59 73 Found malware configuration 2->73 75 Sigma detected: Scheduled temp file as task from temp location 2->75 77 Yara detected AgentTesla 2->77 79 5 other signatures 2->79 8 SCAN_039.EXE 7 2->8         started        12 YYtJku.exe 5 2->12         started        14 YYtJku.exe 2->14         started        signatures3 process4 file5 43 C:\Users\user\AppData\...\&startupname&.exe, PE32 8->43 dropped 45 C:\...\&startupname&.exe:Zone.Identifier, ASCII 8->45 dropped 47 C:\Users\user\AppData\Local\...\tmp9321.tmp, XML 8->47 dropped 49 C:\Users\user\AppData\...\SCAN_039.EXE.log, ASCII 8->49 dropped 81 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->81 83 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 8->83 85 Injects a PE file into a foreign processes 8->85 16 SCAN_039.EXE 2 5 8->16         started        21 schtasks.exe 1 8->21         started        87 Machine Learning detection for dropped file 12->87 23 YYtJku.exe 2 12->23         started        25 schtasks.exe 1 12->25         started        27 YYtJku.exe 12->27         started        29 schtasks.exe 14->29         started        31 YYtJku.exe 14->31         started        signatures6 process7 dnsIp8 51 flsrnidth.com 167.114.220.88, 587 OVHFR Canada 16->51 53 mail.flsrnidth.com 16->53 39 C:\Users\user\AppData\Roaming\...\YYtJku.exe, PE32 16->39 dropped 41 C:\Users\user\...\YYtJku.exe:Zone.Identifier, ASCII 16->41 dropped 61 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->61 63 Moves itself to temp directory 16->63 65 Tries to steal Mail credentials (via file access) 16->65 33 conhost.exe 21->33         started        55 mail.flsrnidth.com 23->55 67 Tries to harvest and steal ftp login credentials 23->67 69 Tries to harvest and steal browser information (history, passwords, etc) 23->69 71 Hides that the sample has been downloaded from the Internet (zone.identifier) 23->71 35 conhost.exe 25->35         started        37 conhost.exe 29->37         started        file9 signatures10 process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bf3d312e54d1b1246c3cad4970cce280dceaa212ffccd3a709e801de3f6d28ca/
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2020-07-30 10:46:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
24
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=x46tclsu2gysi3b4vvexbthcqdooviqs77gnhjyj5aa54p3nfdfa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 11'230 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
spyware keylogger trojan stealer family:agenttesla persistence
Link:
https://tria.ge/reports/200730-j8mkn1pf9n/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: RenamesItself
Creates scheduled task(s)
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Reads user/profile data of local email clients
Reads data files stored by FTP clients
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Starter
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/bf3d312e54d1b1246c3cad4970cce280dceaa212ffccd3a709e801de3f6d28ca

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

img ba4c7025c4c832894b2b45b9df38f3b2bd3edf633d5a02212b37870d4332fc98

AgentTesla

Executable exe bf3d312e54d1b1246c3cad4970cce280dceaa212ffccd3a709e801de3f6d28ca

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 ba4c7025c4c832894b2b45b9df38f3b2bd3edf633d5a02212b37870d4332fc98
Cape
Cape
https://www.capesandbox.com/analysis/35506/

Comments