MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef7a8f1478e57d2dedf96a00501903b7b5a571680286502f2f329ed2c8728b2b. 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: ef7a8f1478e57d2dedf96a00501903b7b5a571680286502f2f329ed2c8728b2b
SHA3-384 hash: ad8827f4983fd4f9e0b2f07c757d564b08b3c1c053b7b1f6fed5b3b01bacb6fcd7f962e5224668831b508846df19a7d8
SHA1 hash: 555fa1c41dce62b77c9e6749ad7241c121778edc
MD5 hash: ede186f5cd7d64d54541d7d543e07165
humanhash: seventeen-march-west-football
File name:Documentation(T01&T02).scr
Download: download sample
Signature AgentTesla
Create hunting rule
File size:675'328 bytes
First seen:2020-08-11 21:23:27 UTC
Last seen:2020-08-11 22:45:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'634 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:TZYaJZb2uUPixLf7MOnSMRXer2TsPODjY/2PICSiSRaZotER:dYKfCixj7MeRXps2w27SooOR
Threatray 11'415 similar samples on MalwareBazaar
TLSH 17E4F12676A59C00C3AA2537CBCF411407BEBD4A3573DA1ABB8B336C65117B64B069CE
Reporter malware_traffic
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
72
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/43754/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.34337563.25274.23779.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
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
Enabling autorun by 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/420481
Signature
.NET source code contains potential unpacker
Found malware configuration
Initial sample is a PE file and has a suspicious name
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:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 262567 Sample: Documentation(T01&T02).scr Startdate: 12/08/2020 Architecture: WINDOWS Score: 100 31 Found malware configuration 2->31 33 Sigma detected: Scheduled temp file as task from temp location 2->33 35 Yara detected AgentTesla 2->35 37 7 other signatures 2->37 7 Documentation(T01&T02).exe 7 2->7         started        process3 file4 19 C:\Users\user\AppData\...\PfqWtcvOSfSbB.exe, PE32 7->19 dropped 21 C:\...\PfqWtcvOSfSbB.exe:Zone.Identifier, ASCII 7->21 dropped 23 C:\Users\user\AppData\Local\...\tmpE738.tmp, XML 7->23 dropped 25 C:\Users\...\Documentation(T01&T02).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 11 Documentation(T01&T02).exe 2 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 27 smtp.yandex.ru 77.88.21.158, 49752, 587 YANDEXRU Russian Federation 11->27 29 smtp.yandex.com 11->29 43 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->43 45 Tries to steal Mail credentials (via file access) 11->45 47 Tries to harvest and steal ftp login credentials 11->47 49 2 other signatures 11->49 17 conhost.exe 15->17         started        signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ef7a8f1478e57d2dedf96a00501903b7b5a571680286502f2f329ed2c8728b2b/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-08-11 15:46:57 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=555i6fdy4v6s33pzniafagidw622k4liakdfalzpgkpnfsdsrmvq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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c6f41cff35e8e1e72217e9f5c8d32a6fff30bd878b854acf357f61c02b6f603e
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d3204c9776cd57ecf3f3c44d00b8ee6aede75a9f40699ac02091522162cf46a0
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e39c2e98071d4440d02e6d1aa86111536d6d01554489bd71f890455c05e424d3
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f7f3acea6b67e6b5db697777ab0bd656febfe648e4d79519010ba805e329fdc0
AgentTesla
+ 11'405 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200811-pxlq5ab942/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads data files stored by FTP clients
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.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/ef7a8f1478e57d2dedf96a00501903b7b5a571680286502f2f329ed2c8728b2b

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.

Cape
Cape
https://www.capesandbox.com/analysis/43754/

Comments