MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2b3b5dd915bc551c2064081d3a441bf26136a9bea1fbdb66481e58e4201c384e. 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: 13


Intelligence 13 IOCs YARA 6 File information Comments

SHA256 hash: 2b3b5dd915bc551c2064081d3a441bf26136a9bea1fbdb66481e58e4201c384e
SHA3-384 hash: 3dcb0ced2c732f63798e558ef0d0dfcb5fc195f69b3902ba468cf7b6351af7ea7e397e7f8da2c063ad188a4467c4d11e
SHA1 hash: e22747beca278d8d470678cb5eb22836049c24ba
MD5 hash: 93b339b8eea8e36a3d668208eb73b207
humanhash: lactose-single-oregon-nuts
File name:documents.exe
Download: download sample
Signature AgentTesla
File size:355'589 bytes
First seen:2022-03-03 23:18:17 UTC
Last seen:2022-03-04 14:38:08 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla)
ssdeep 6144:rGieCZfsRdu6BOMQCsUQoKnz7jz0qn6Vp5SKzfU/I6khOwoLn0CS6X38KfMq6+:DaRQ6BOxUNS7TYpF6I6p4Cp8Sd1
TLSH T1737423160AD18433C5A340300BF597FDE37952E60E8A2197DFE86FEB2EB548319257B6
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
6
# of downloads :
268
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process by context flags manipulation
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
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.adwa.spyw.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
Executable has a suspicious name (potential lure to open the executable)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Modifies the hosts 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)
Tries to harvest and steal ftp login credentials
Yara detected AgentTesla
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2022-03-03 23:19:10 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
21 of 27 (77.78%)
Threat level:
  5/5
Verdict:
malicious
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Drops file in Drivers directory
Executes dropped EXE
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
2b3b5dd915bc551c2064081d3a441bf26136a9bea1fbdb66481e58e4201c384e
MD5 hash:
93b339b8eea8e36a3d668208eb73b207
SHA1 hash:
e22747beca278d8d470678cb5eb22836049c24ba
Malware family:
Agent Tesla v3
Verdict:
Malicious
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:AgentTeslaV3
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:MALWARE_Win_AgentTeslaV3
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
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 2b3b5dd915bc551c2064081d3a441bf26136a9bea1fbdb66481e58e4201c384e

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment

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