MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2b44cba8f72f0539ac1b96b10decf933339427b7ab2959f4b2f1f7211a3d5bb3. 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: 2b44cba8f72f0539ac1b96b10decf933339427b7ab2959f4b2f1f7211a3d5bb3
SHA3-384 hash: 1baec327a73a1afb7ae9632506e951c5fcaf3bae61c38d0ce8852b1dd308b8f009f67117f213e5fa4341bb4580756dad
SHA1 hash: 61190629a70ca90ae31b2691f17f640fc84d891e
MD5 hash: eb575f4502d47d85e7ba7a5655d83bbd
humanhash: uranus-robin-blue-harry
File name:SAMPLE ORDER pdf.exe
Download: download sample
Signature AgentTesla
File size:418'304 bytes
First seen:2020-09-16 18:42:26 UTC
Last seen:2020-09-16 19:35:07 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:xx/Bagt7AIT7apAucNthaRZpIAfRLGoIa2vjFs3WW:xxSITwJcPha7pIAtaa27a3P
Threatray 10'616 similar samples on MalwareBazaar
TLSH 8594237A425D973EDDF08F7D6C2D354CAA79B906600ED3484F0D717B188A390A93AF26
Reporter cocaman
Tags:AgentTesla exe

Intelligence


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

Behaviour
Creating a window
Sending a UDP request
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
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Moving of the original file
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
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
Moves itself to temp directory
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: 286584 Sample: SAMPLE ORDER pdf.exe Startdate: 16/09/2020 Architecture: WINDOWS Score: 100 64 Found malware configuration 2->64 66 Multi AV Scanner detection for dropped file 2->66 68 Sigma detected: Scheduled temp file as task from temp location 2->68 70 12 other signatures 2->70 7 YYtJku.exe 5 2->7         started        10 SAMPLE ORDER pdf.exe 6 2->10         started        13 YYtJku.exe 4 2->13         started        process3 file4 72 Multi AV Scanner detection for dropped file 7->72 74 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->74 76 Machine Learning detection for dropped file 7->76 78 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->78 15 YYtJku.exe 7->15         started        19 schtasks.exe 7->19         started        40 C:\Users\user\AppData\Roaming\CWGcQKxFZ.exe, PE32 10->40 dropped 42 C:\Users\user\AppData\Local\...\tmp8420.tmp, XML 10->42 dropped 44 C:\Users\user\...\SAMPLE ORDER pdf.exe.log, ASCII 10->44 dropped 80 Injects a PE file into a foreign processes 10->80 21 SAMPLE ORDER pdf.exe 2 5 10->21         started        24 schtasks.exe 1 10->24         started        26 schtasks.exe 13->26         started        28 YYtJku.exe 13->28         started        signatures5 process6 dnsIp7 46 208.91.199.224, 49716, 587 PUBLIC-DOMAIN-REGISTRYUS United States 15->46 52 Tries to harvest and steal ftp login credentials 15->52 54 Tries to harvest and steal browser information (history, passwords, etc) 15->54 56 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->56 30 conhost.exe 19->30         started        48 us2.smtp.mailhostbox.com 208.91.198.143, 49713, 587 PUBLIC-DOMAIN-REGISTRYUS United States 21->48 50 192.168.2.1 unknown unknown 21->50 36 C:\Users\user\AppData\Roaming\...\YYtJku.exe, PE32 21->36 dropped 38 C:\Users\user\...\YYtJku.exe:Zone.Identifier, ASCII 21->38 dropped 58 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 21->58 60 Moves itself to temp directory 21->60 62 Tries to steal Mail credentials (via file access) 21->62 32 conhost.exe 24->32         started        34 conhost.exe 26->34         started        file8 signatures9 process10
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-09-16 11:21:16 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
22 of 29 (75.86%)
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 behavior: RenamesItself
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.

Malspam

AgentTesla

Executable exe 2b44cba8f72f0539ac1b96b10decf933339427b7ab2959f4b2f1f7211a3d5bb3

(this sample)

Comments