MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d6f534c9ada1be06a4a8e186506a6807f6f2c26b2d0b4c3178d95b7fd09817f4. 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: d6f534c9ada1be06a4a8e186506a6807f6f2c26b2d0b4c3178d95b7fd09817f4
SHA3-384 hash: 549a9d5fbc692b71f4eaee5b3252ef5b77c5a9658b2e510b8a5832f30329c88f1f81683e66485c6daedd6dba5e4ba2d1
SHA1 hash: 80b9cda2883c65df0f8ee42a9d06585f90eeafa6
MD5 hash: 66fc2899f92ca095d9c27c62eea6cd12
humanhash: jig-emma-winner-cup
File name:pwininilogs.exe
Download: download sample
Signature AgentTesla
File size:975'872 bytes
First seen:2020-08-03 18:09:31 UTC
Last seen:2020-08-03 22:28:35 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:076HfbdOXfLUvGXbin8OUoZyMhw47fBn2gb60IGP:UegQOWPggTBn2gb60I
Threatray 10'639 similar samples on MalwareBazaar
TLSH 52258B2832AF0915FB5916795C3245039FF1EF4B58D2AF4F26E171AA18F7BA49840F32
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
82
Origin country :
n/a
Vendor Threat Intelligence
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
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Contains functionality to register a low level keyboard hook
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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 256415 Sample: pwininilogs.exe Startdate: 03/08/2020 Architecture: WINDOWS Score: 100 34 Yara detected AgentTesla 2->34 36 Yara detected AntiVM_3 2->36 38 Machine Learning detection for sample 2->38 40 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 2->40 6 pwininilogs.exe 3 2->6         started        10 nVTlJn.exe 3 2->10         started        12 nVTlJn.exe 2 2->12         started        process3 file4 28 C:\Users\user\AppData\...\pwininilogs.exe.log, ASCII 6->28 dropped 42 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->42 44 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->44 46 Injects a PE file into a foreign processes 6->46 14 pwininilogs.exe 2 5 6->14         started        48 Machine Learning detection for dropped file 10->48 50 Contains functionality to register a low level keyboard hook 10->50 18 nVTlJn.exe 2 10->18         started        20 nVTlJn.exe 10->20         started        22 nVTlJn.exe 12->22         started        24 nVTlJn.exe 12->24         started        26 nVTlJn.exe 12->26         started        signatures5 process6 file7 30 C:\Users\user\AppData\Roaming\...\nVTlJn.exe, PE32 14->30 dropped 32 C:\Users\user\...\nVTlJn.exe:Zone.Identifier, ASCII 14->32 dropped 52 Moves itself to temp directory 14->52 54 Tries to steal Mail credentials (via file access) 14->54 56 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->56 58 Tries to harvest and steal browser information (history, passwords, etc) 18->58 60 Installs a global keyboard hook 18->60 signatures8
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Status:
Malicious
First seen:
2020-08-03 18:08:58 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
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
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Reads user/profile data of local email clients
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.

Comments