MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a22fd8c976069aeb676b7335e35a4f19bd55293f669bcc71f407147012b0379d. 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 4 File information Comments
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SHA256 hash: a22fd8c976069aeb676b7335e35a4f19bd55293f669bcc71f407147012b0379d
SHA3-384 hash: 438a82286d9270e92cad3ec0f72cdc9df6cdb656e89d4dc338e02ced447c4177bd49f6a879a20962fcc0bbbfc67c6c27
SHA1 hash: c052e2ae6c47b7d9ec573c23947ff796b64178c6
MD5 hash: 364688b5e4388c7104daa156d06ae9a7
humanhash: nitrogen-orange-sad-november
File name:3.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:667'648 bytes
First seen:2020-07-23 14:54:51 UTC
Last seen:2020-07-23 15:53:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:p5+93bLbXAxJ5vSJOOh2z27trmVPgsUh:Py0teOOh2Ctrm
Threatray 10'609 similar samples on MalwareBazaar
TLSH A5E45A09D7B5E8E9FB6A0379E07108162F66981F63C5E65D278AF1693C333128253CB7
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
88
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/31843/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.398.130.848.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/396482
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 250525 Sample: 3.exe Startdate: 24/07/2020 Architecture: WINDOWS Score: 100 33 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->33 35 Multi AV Scanner detection for domain / URL 2->35 37 Found malware configuration 2->37 39 3 other signatures 2->39 6 NBUGIoN.exe 1 2->6         started        9 3.exe 1 2->9         started        12 NBUGIoN.exe 2->12         started        process3 file4 41 Multi AV Scanner detection for dropped file 6->41 43 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->43 45 Machine Learning detection for dropped file 6->45 47 Injects a PE file into a foreign processes 6->47 14 NBUGIoN.exe 10 6->14         started        29 C:\Users\user\AppData\Local\...\3.exe.log, ASCII 9->29 dropped 49 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 9->49 18 3.exe 2 13 9->18         started        21 NBUGIoN.exe 2 12->21         started        signatures5 process6 dnsIp7 51 Tries to harvest and steal ftp login credentials 14->51 53 Tries to harvest and steal browser information (history, passwords, etc) 14->53 55 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->55 31 amazing-cool.com 103.118.26.53, 25, 49721, 49722 NSS-GROUP-AS-TWNSSINTLCOLTDTW Taiwan; Republic of China (ROC) 18->31 23 C:\Users\user\AppData\Roaming\...23BUGIoN.exe, PE32 18->23 dropped 25 C:\Windows\System32\drivers\etc\hosts, ASCII 18->25 dropped 27 C:\Users\user\...27BUGIoN.exe:Zone.Identifier, ASCII 18->27 dropped 57 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->57 59 Moves itself to temp directory 18->59 61 Tries to steal Mail credentials (via file access) 18->61 63 2 other signatures 18->63 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a22fd8c976069aeb676b7335e35a4f19bd55293f669bcc71f407147012b0379d/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-23 14:54:23 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uix5rslwa2nowz3lom26gwspdg6vkkj7m2n4y4pua4khaevqg6oq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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baa0b105bc19ddaf3c0303f8e7dcaab546e64a4ed340fe3271d9169a2c9cee46
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c9cafe28ca1a718f8538408c38bbdb87e4988ff11f4a450187388266007f1724
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d2b2c311da183d92a228d5bf6f5e108c6b01af4c2cd890a9aa71f6ad2353cc1c
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e3342e277b3c163d0f6607ba9e6a93300e5e6983e19d77540d221aa1ef4439a5
AgentTesla
+ 10'599 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
persistence spyware keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/200723-tepk1phhdj/
Behaviour
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of SetThreadContext
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Reads user/profile data of local email clients
Drops file in Drivers directory
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/a22fd8c976069aeb676b7335e35a4f19bd55293f669bcc71f407147012b0379d

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_g2
Create hunting rule
Author:Daniel Plohmann <daniel.plohmann@fkie.fraunhofer.de>
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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/31843/

Comments