MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7338f4c2a83414de28a32d8d91bd61b5dda78b660c70dc82f53a68a06fa67182. 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

SHA256 hash: 7338f4c2a83414de28a32d8d91bd61b5dda78b660c70dc82f53a68a06fa67182
SHA3-384 hash: db3e4844d6b7c5107a08ee859040093f71afbc0ab9eeafccbd4a68e8c8d962f7b5a588fa248a28f3ed07b26ce8bf1346
SHA1 hash: 4380c8341dad5d184884eb7832b5b047b9a84f6d
MD5 hash: e9f1dcbaaf4ed8b190f22e5831db90e4
humanhash: comet-stairway-quebec-eleven
File name:Product Enquiry_PDF_______________________________________....exe
Download: download sample
Signature AgentTesla
File size:764'416 bytes
First seen:2020-09-21 14:28:00 UTC
Last seen:2020-09-21 15:42:43 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'643 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 12288:nytA++rMiNGAo+Ha9hhPoFxdsLZ5eZAUA7x/mTj2ERDgpMimGIuE:hRrHNn9Ha9bPoFrsOZAUA7Zmdsai1E
Threatray 9'349 similar samples on MalwareBazaar
TLSH E3F4CE1030A13B4AE6B88BB40655B4B2C3B525567B22D7A47F4331FE66F1BE0BD25B07
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
100
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
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
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
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 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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 288096 Sample: Product Enquiry_PDF________... Startdate: 21/09/2020 Architecture: WINDOWS Score: 100 52 Found malware configuration 2->52 54 Multi AV Scanner detection for dropped file 2->54 56 Sigma detected: Scheduled temp file as task from temp location 2->56 58 12 other signatures 2->58 7 wNanO.exe 3 2->7         started        10 Product Enquiry_PDF_______________________________________....exe 4 2->10         started        13 wNanO.exe 2->13         started        process3 file4 60 Multi AV Scanner detection for dropped file 7->60 62 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->62 64 Machine Learning detection for dropped file 7->64 66 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->66 15 wNanO.exe 2 7->15         started        19 schtasks.exe 1 7->19         started        34 C:\Users\user\AppData\Roaming\VUcPvAnN.exe, PE32 10->34 dropped 36 C:\Users\user\AppData\Local\...\tmp2353.tmp, XML 10->36 dropped 38 Product Enquiry_PD...________....exe.log, ASCII 10->38 dropped 68 Injects a PE file into a foreign processes 10->68 21 Product Enquiry_PDF_______________________________________....exe 2 5 10->21         started        24 schtasks.exe 1 10->24         started        signatures5 process6 dnsIp7 42 Tries to harvest and steal ftp login credentials 15->42 44 Tries to harvest and steal browser information (history, passwords, etc) 15->44 26 conhost.exe 19->26         started        40 mail.pwmtdubai.com 162.241.219.86, 49728, 49734, 587 UNIFIEDLAYER-AS-1US United States 21->40 30 C:\Users\user\AppData\Roaming\...\wNanO.exe, PE32 21->30 dropped 32 C:\Users\user\...\wNanO.exe:Zone.Identifier, ASCII 21->32 dropped 46 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 21->46 48 Tries to steal Mail credentials (via file access) 21->48 50 Hides that the sample has been downloaded from the Internet (zone.identifier) 21->50 28 conhost.exe 24->28         started        file8 signatures9 process10
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Status:
Malicious
First seen:
2020-09-21 00:18:44 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
23 of 29 (79.31%)
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 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.

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.

  
Delivery method
Other

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