MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 740b6b0b89699a05d2f6e7ea28930260ad62259c4f94eb917cf3120e25edf07e. 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: 740b6b0b89699a05d2f6e7ea28930260ad62259c4f94eb917cf3120e25edf07e
SHA3-384 hash: a247bffe9c54cbd2e855c22f2e868b695a981f2e36665e00675674a05535598d6d106329506145ee15a81dd1cf527147
SHA1 hash: 2b3639fa6412daf65b46b40a88bd84039d268a9e
MD5 hash: d83e3fa5c536eaee81e183133821c9be
humanhash: hydrogen-virginia-sweet-stream
File name:SecuriteInfo.com.Trojan.PackedNET.406.8511.16641
Download: download sample
Signature AgentTesla
Create hunting rule
File size:972'288 bytes
First seen:2020-08-11 08:12:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:TQgrpiA6Xx91LMCgrZO/uZdX7xlOvJ9iRE8x4elh:NQAOx9aDZWGdXCvJQRE8dh
Threatray 10'747 similar samples on MalwareBazaar
TLSH F125F496269F6AD4C3B406F0677AA283C7FCBF1E58329F1B6580756923FB211F5006B1
Reporter SecuriteInfoCom
Tags:AgentTesla

Intelligence

File Origin
# of uploads :
1
# of downloads :
69
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/43184/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.406.8511.16641.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/418062
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
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)
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)
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 261292 Sample: SecuriteInfo.com.Trojan.Pac... Startdate: 11/08/2020 Architecture: WINDOWS Score: 100 28 Yara detected AgentTesla 2->28 30 Yara detected AntiVM_3 2->30 32 Machine Learning detection for sample 2->32 34 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 2->34 6 SecuriteInfo.com.Trojan.PackedNET.406.8511.exe 3 2->6         started        10 nVTlJn.exe 3 2->10         started        12 nVTlJn.exe 2 2->12         started        process3 file4 22 SecuriteInfo.com.T...ET.406.8511.exe.log, ASCII 6->22 dropped 36 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->36 38 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->38 14 SecuriteInfo.com.Trojan.PackedNET.406.8511.exe 2 5 6->14         started        40 Machine Learning detection for dropped file 10->40 42 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 10->42 18 nVTlJn.exe 2 10->18         started        44 Injects a PE file into a foreign processes 12->44 20 nVTlJn.exe 2 12->20         started        signatures5 process6 file7 24 C:\Users\user\AppData\Roaming\...\nVTlJn.exe, PE32 14->24 dropped 26 C:\Users\user\...\nVTlJn.exe:Zone.Identifier, ASCII 14->26 dropped 46 Moves itself to temp directory 14->46 48 Tries to steal Mail credentials (via file access) 14->48 50 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->50 52 Tries to harvest and steal browser information (history, passwords, etc) 18->52 54 Installs a global keyboard hook 18->54 signatures8
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/740b6b0b89699a05d2f6e7ea28930260ad62259c4f94eb917cf3120e25edf07e/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-10 18:43:19 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=oqfwwc4jngnaluxw47vcreycmcwwejm4j6koxel46mja4jpn6b7a._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'737 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer persistence spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200811-pa8xvdf9q6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
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.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/740b6b0b89699a05d2f6e7ea28930260ad62259c4f94eb917cf3120e25edf07e

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.

Web download

AgentTesla

Executable exe 740b6b0b89699a05d2f6e7ea28930260ad62259c4f94eb917cf3120e25edf07e

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/43184/
  
URLhaus
https://urlhaus.abuse.ch/url/428990/
  
Delivery method
Distributed via web download

Comments