MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5a5405a59ac1371bf62ee9599b29bed6e7ee8e11f7319c6ff7d5900963900e3f. 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 8 File information Comments

SHA256 hash: 5a5405a59ac1371bf62ee9599b29bed6e7ee8e11f7319c6ff7d5900963900e3f
SHA3-384 hash: a33c891bc56b32be524e6433f02314b72bb224c5a2b3e17535c9cf0b977a369bf6d7c1c10452aeb6d19b07e994caa143
SHA1 hash: 20de9ce80d4d194cd77a9e0f4ec2e9b23f5f3994
MD5 hash: 44f557148b5aea457eb6720892a7a5c8
humanhash: tango-potato-oklahoma-lima
File name:QUOTATION_OCT9FIBA00541·PDF.scr
Download: download sample
Signature AgentTesla
File size:974'848 bytes
First seen:2023-10-05 09:29:23 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:rafxt/rzVrkMxtIesnLRgieG16k3lsfZXOWdX/pZ1kfmg:upt/rzVrkMDIfyiJ1d3liZXO+mf
Threatray 90 similar samples on MalwareBazaar
TLSH T134257C04777886A2CB5ED73098E6190CDAE3CD1B67D5975A28C476B98A333FD8B034D2
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 7068ccb0b2b2b2f8 (129 x AgentTesla, 54 x SnakeKeylogger, 28 x AveMariaRAT)
Reporter abuse_ch
Tags:AgentTesla exe scr

Intelligence


File Origin
# of uploads :
1
# of downloads :
276
Origin country :
NL NL
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
Sending a UDP request
DNS request
Creating a file
Using the Windows Management Instrumentation requests
Creating a window
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade packed
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 potential unpacker
.NET source code contains very large array initializations
Allocates memory in foreign processes
Contains functionality to log keystrokes (.Net Source)
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 sample
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
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 / registry access)
Uses ipconfig to lookup or modify the Windows network settings
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1320143 Sample: QUOTATION_OCT9FIBA00541#U00... Startdate: 05/10/2023 Architecture: WINDOWS Score: 100 25 Found malware configuration 2->25 27 Multi AV Scanner detection for submitted file 2->27 29 Yara detected AgentTesla 2->29 31 7 other signatures 2->31 7 QUOTATION_OCT9FIBA00541#U00b7PDF.scr.exe 4 2->7         started        process3 signatures4 33 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->33 35 Writes to foreign memory regions 7->35 37 Allocates memory in foreign processes 7->37 39 Injects a PE file into a foreign processes 7->39 10 aspnet_compiler.exe 2 7->10         started        13 cmd.exe 1 7->13         started        15 cmd.exe 1 7->15         started        process5 signatures6 41 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 10->41 43 Tries to steal Mail credentials (via file / registry access) 10->43 45 Tries to harvest and steal browser information (history, passwords, etc) 10->45 47 Installs a global keyboard hook 10->47 49 Uses ipconfig to lookup or modify the Windows network settings 13->49 17 conhost.exe 13->17         started        19 ipconfig.exe 1 13->19         started        21 conhost.exe 15->21         started        23 ipconfig.exe 1 15->23         started        process7
Threat name:
Win32.Trojan.CrypterX
Status:
Malicious
First seen:
2023-10-03 10:57:16 UTC
File Type:
PE (.Net Exe)
Extracted files:
27
AV detection:
16 of 36 (44.44%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Checks computer location settings
AgentTesla
Unpacked files
SH256 hash:
5a5405a59ac1371bf62ee9599b29bed6e7ee8e11f7319c6ff7d5900963900e3f
MD5 hash:
44f557148b5aea457eb6720892a7a5c8
SHA1 hash:
20de9ce80d4d194cd77a9e0f4ec2e9b23f5f3994
Malware family:
AgentTesla.v4
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:AgentTeslaV3
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:INDICATOR_EXE_Packed_GEN01
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:win_agent_tesla_bytecodes_sep_2023
Author:Matthew @embee_research

File information


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

Malspam

AgentTesla

Executable exe 5a5405a59ac1371bf62ee9599b29bed6e7ee8e11f7319c6ff7d5900963900e3f

(this sample)

  
Delivery method
Distributed via e-mail attachment

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