MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b51842033a6ed385e07f4de9093412e410f50da878e761de8725c184f2327ec1. 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: 11


Intelligence 11 IOCs YARA 4 File information Comments

SHA256 hash: b51842033a6ed385e07f4de9093412e410f50da878e761de8725c184f2327ec1
SHA3-384 hash: 6e5d3de87c86f3e0350df3e92c7903249ba276facbe77f8565cc588c14b71cc09fa6fb1a60771fb9e24212968a92af6a
SHA1 hash: bafabfccd47da1333dea8fb2397fea001a8ac440
MD5 hash: a558088ccc65b51866c990dc1a625d4e
humanhash: video-virginia-hydrogen-neptune
File name:DHL_document11022020680908911.doc.exe
Download: download sample
Signature AgentTesla
File size:748'544 bytes
First seen:2021-04-30 20:13:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'665 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:+Ta/vjtpcLFcyZ90ExNmL4QwRD6ktqOulonU5QI9h7CNdY6SM+WU2ZRiUqjzEcPI:fjtpcfNhQuDBtqOOoUeAh7QdHSbMZRi6
Threatray 4'830 similar samples on MalwareBazaar
TLSH 7EF4120817DCBB61E9793B3C2839124463F2A917F722D5ADBDCD82CD1766D418B42BA3
Reporter GovCERT_CH
Tags:AgentTesla

Intelligence


File Origin
# of uploads :
1
# of downloads :
220
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
Contains functionality to register a low level keyboard hook
Found malware configuration
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
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: BlueMashroom DLL Load
Sigma detected: Exchange Exploitation Activity
Sigma detected: Mustang Panda Dropper
Sigma detected: NotPetya Ransomware Activity
Sigma detected: QBot Process Creation
Sigma detected: Raccine Uninstall
Sigma detected: Scheduled temp file as task from temp location
Sigma detected: Suspicious Double Extension
Sigma detected: Suspicious Scheduled Task Creation Involving Temp Folder
Sigma detected: Windows 10 Scheduled Task SandboxEscaper 0-day
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 an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 401751 Sample: DHL_document110220206809089... Startdate: 30/04/2021 Architecture: WINDOWS Score: 100 33 Found malware configuration 2->33 35 Multi AV Scanner detection for dropped file 2->35 37 Sigma detected: Scheduled temp file as task from temp location 2->37 39 18 other signatures 2->39 7 DHL_document11022020680908911.doc.exe 7 2->7         started        process3 file4 23 C:\Users\user\AppData\...\ufHXzaUBfK.exe, PE32 7->23 dropped 25 C:\Users\...\ufHXzaUBfK.exe:Zone.Identifier, ASCII 7->25 dropped 27 C:\Users\user\AppData\Local\...\tmp84FD.tmp, XML 7->27 dropped 29 DHL_document110220...0908911.doc.exe.log, ASCII 7->29 dropped 41 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->41 43 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->43 45 Contains functionality to register a low level keyboard hook 7->45 47 2 other signatures 7->47 11 DHL_document11022020680908911.doc.exe 2 7->11         started        15 schtasks.exe 1 7->15         started        17 DHL_document11022020680908911.doc.exe 7->17         started        19 DHL_document11022020680908911.doc.exe 7->19         started        signatures5 process6 dnsIp7 31 mail.privateemail.com 198.54.122.60, 49734, 587 NAMECHEAP-NETUS United States 11->31 49 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->49 51 Tries to steal Mail credentials (via file access) 11->51 53 Tries to harvest and steal ftp login credentials 11->53 55 2 other signatures 11->55 21 conhost.exe 15->21         started        signatures8 process9
Threat name:
ByteCode-MSIL.PUA.Wacapew
Status:
Malicious
First seen:
2021-04-30 08:04:00 UTC
AV detection:
15 of 28 (53.57%)
Threat level:
  1/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
11cf5a51e593c007ff4f91294cf505ffd5e425e56387c60d81e6479cc284cc3b
MD5 hash:
73cc3f7e7700e6a54cb5f291dffe5aa1
SHA1 hash:
09174f9fa55c9bac0540efb7a8c682878a32d02d
SH256 hash:
b51842033a6ed385e07f4de9093412e410f50da878e761de8725c184f2327ec1
MD5 hash:
a558088ccc65b51866c990dc1a625d4e
SHA1 hash:
bafabfccd47da1333dea8fb2397fea001a8ac440
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:ach_AgentTesla_20200929
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:MALWARE_Win_AgentTeslaV3
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:silentbuilder_halo_generated
Author:Halogen Generated Rule, Corsin Camichel
Rule name:win_agent_tesla_v1
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

Executable exe b51842033a6ed385e07f4de9093412e410f50da878e761de8725c184f2327ec1

(this sample)

  
Delivery method
Distributed via e-mail attachment

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