MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 929b3de95bbd633a33db18a4099536fb5e22698d59ebe9588eb927f0aaef01da. 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


Intelligence File information Yara 3 Comments

SHA256 hash: 929b3de95bbd633a33db18a4099536fb5e22698d59ebe9588eb927f0aaef01da
SHA3-384 hash: 9eb32081dea1a5ce96f1e32f4395824de4cb5b028c87514413aae298ae66c9b8d99252045c1e0317ffcd4958b2c982f9
SHA1 hash: cdf282cfc1551e3833bc373f4d856921b89d2f3b
MD5 hash: 327559d02c47e83c76176801e5d61e82
humanhash: illinois-angel-nine-low
File name:purchase items.exe
Download: download sample
Signature AgentTesla
File size:471'040 bytes
First seen:2020-07-31 17:33:33 UTC
Last seen:2020-07-31 18:35:21 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744
ssdeep 12288:UWafmCL//EPcjfpPoYBZOus+DrMkp+tbm30i:98HEkjRocZOcetC3
TLSH 53A4F12C12A84B2AF5B906BF6D7201039F76D40F6610D62B6FB521DA01BEB4C3E54F97
Reporter @James_inthe_box
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
54
Origin country :
US US
Mail intelligence
Geo location:
IT Italy
Volume:
Low
Geo location:
Global
Volume:
Low
Vendor Threat Intelligence
Gathering data
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Contains functionality to register a low level keyboard hook
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
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:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 255486 Sample: purchase items.exe Startdate: 01/08/2020 Architecture: WINDOWS Score: 100 51 g.msn.com 2->51 53 asf-ris-prod-neurope.northeurope.cloudapp.azure.com 2->53 67 Found malware configuration 2->67 69 Sigma detected: Scheduled temp file as task from temp location 2->69 71 Yara detected AgentTesla 2->71 73 9 other signatures 2->73 8 Appnew.exe 3 2->8         started        11 purchase items.exe 7 2->11         started        14 Appnew.exe 2 2->14         started        signatures3 process4 file5 75 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->75 77 Machine Learning detection for dropped file 8->77 79 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 8->79 16 Appnew.exe 2 8->16         started        20 Appnew.exe 8->20         started        37 C:\Users\user\AppData\...\&startupname&.exe, PE32 11->37 dropped 39 C:\Users\user\AppData\Local\...\tmpEF29.tmp, XML 11->39 dropped 41 C:\...\&startupname&.exe:Zone.Identifier, ASCII 11->41 dropped 43 C:\Users\user\...\purchase items.exe.log, ASCII 11->43 dropped 81 Injects a PE file into a foreign processes 11->81 22 purchase items.exe 2 5 11->22         started        25 schtasks.exe 1 11->25         started        27 purchase items.exe 11->27         started        29 Appnew.exe 14->29         started        signatures6 process7 dnsIp8 45 mail.tsa.ae 16->45 55 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->55 57 Tries to steal Mail credentials (via file access) 16->57 59 Tries to harvest and steal ftp login credentials 16->59 61 Tries to harvest and steal browser information (history, passwords, etc) 16->61 47 tsa.ae 66.7.220.3, 49738, 49745, 587 DIMENOCUS United States 22->47 49 mail.tsa.ae 22->49 33 C:\Users\user\AppData\Roaming\...\Appnew.exe, PE32 22->33 dropped 35 C:\Users\user\...\Appnew.exe:Zone.Identifier, ASCII 22->35 dropped 63 Hides that the sample has been downloaded from the Internet (zone.identifier) 22->63 65 Installs a global keyboard hook 22->65 31 conhost.exe 25->31         started        file9 signatures10 process11
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-07-31 17:32:50 UTC
AV detection:
21 of 31 (67.74%)
Threat level
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer persistence spyware trojan family:agenttesla
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Reads data files stored by FTP clients
Reads user/profile data of local email clients
AgentTesla Payload
AgentTesla
Threat name:
Malicious File
Score:
0.95

Yara Signatures


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

Comments