MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 66559a620120bae83346077c331fa493ec8f3c32f760aec990d972e72ff50578. 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: 18


Intelligence 18 IOCs YARA 8 File information Comments

SHA256 hash: 66559a620120bae83346077c331fa493ec8f3c32f760aec990d972e72ff50578
SHA3-384 hash: 4adb6ede1cf9cc57044fe899d2eecc3150d35a5246eb9e07dcc401fc385e267697b20f94227af27578d69672f3a9ba18
SHA1 hash: eafc8fcdd0cd2238f2b10e593868fabc52779169
MD5 hash: 5b2bfc92058c844f282833822796ffc4
humanhash: red-beryllium-nitrogen-lithium
File name:TNT Shipment doc.exe
Download: download sample
Signature AgentTesla
File size:293'543 bytes
First seen:2023-07-18 13:07:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:vYa6Xi+flsXNaJiUhT0sIo0D0hfZbkkf8OqxDVNl+ME/RBIYFa5q:vYV9fsNaUkobo88hkkkO4b0MEJBnMc
Threatray 4'997 similar samples on MalwareBazaar
TLSH T1185412E86AF0C29BC4E18B314876472FEFAD350220649B5F33605E6D3E73181AD6E752
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter abuse_ch
Tags:AgentTesla exe TNT

Intelligence


File Origin
# of uploads :
1
# of downloads :
286
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
TNT Shipment doc.exe
Verdict:
Malicious activity
Analysis date:
2023-07-18 13:08:32 UTC
Tags:
agenttesla stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file
Unauthorized injection to a recently created process
Restart of the analyzed sample
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Reading critical registry keys
Setting a keyboard event handler
Creating a file in the %AppData% subdirectories
Stealing user critical data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control lolbin masquerade overlay packed shell32
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, NSISDropper
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found API chain indicative of debugger detection
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
Installs a global keyboard hook
Machine Learning detection for sample
Maps a DLL or memory area into another process
May check the online IP address of the machine
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 harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Yara detected NSISDropper
Behaviour
Behavior Graph:
Threat name:
Win32.Backdoor.Androm
Status:
Malicious
First seen:
2023-07-18 13:08:08 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
16 of 38 (42.11%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Behaviour
Suspicious behavior: MapViewOfSection
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
Looks up external IP address via web service
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
AgentTesla
Unpacked files
SH256 hash:
f3a611afb6445c5244fc2783e830da437c4f9d0066265b9c5320a943aee89cbf
MD5 hash:
8a9264be42ad184c414b1c81e6007845
SHA1 hash:
f9e1a32c4792d97fe34a5eaf9d1071deec46c5c2
SH256 hash:
bdbe0204e40c28ee3a5ac9ae1613e7a4c2eabdf5f6639248f049957db3095f6d
MD5 hash:
cacb419d1686fdd0db1456e42372476f
SHA1 hash:
8a873c220c6eafb45d6ce5dff5d212de2ab4aad7
SH256 hash:
66559a620120bae83346077c331fa493ec8f3c32f760aec990d972e72ff50578
MD5 hash:
5b2bfc92058c844f282833822796ffc4
SHA1 hash:
eafc8fcdd0cd2238f2b10e593868fabc52779169
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:AgentTeslaV4
Author:Rony (r0ny_123)
Rule name:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:INDICATOR_EXE_Packed_GEN01
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:MSIL_SUSP_OBFUSC_XorStringsNet
Author:dr4k0nia
Description:Detects XorStringsNET string encryption, and other obfuscators derived from it
Reference:https://github.com/dr4k0nia/yara-rules
Rule name:msil_susp_obf_xorstringsnet
Author:dr4k0nia
Description:Detects XorStringsNET string encryption, and other obfuscators derived from it
Rule name:pe_imphash
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

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