MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b56b1cd85f7629245b8688d774aac1a87bf4d79bacc7a0207157f00894c7d405. 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: 16


Intelligence 16 IOCs YARA 4 File information Comments

SHA256 hash: b56b1cd85f7629245b8688d774aac1a87bf4d79bacc7a0207157f00894c7d405
SHA3-384 hash: 70f573e94002060c7f00478ffa91a4f1ce683ec5456d762ee2bb64d12c90897371817f1617abff59b3762f3c64cc48ba
SHA1 hash: a04dc8cb8e4303bc6ed05a8ef91200596bb1ffa4
MD5 hash: 29d6f0770960c8fec1286b389c9c87a1
humanhash: emma-double-cola-helium
File name:b56b1cd85f7629245b8688d774aac1a87bf4d79bacc7a0207157f00894c7d405
Download: download sample
Signature AgentTesla
File size:169'472 bytes
First seen:2023-05-25 08:35:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 3072:ECcN88ELAG1LABs46OtvAul8UdAHBW0AVXFyoNRh9N5:RfojuKAQ0do
Threatray 3'097 similar samples on MalwareBazaar
TLSH T1C4F34B695EC98DD2C3ED6175DB710A08CBB2A1434617D76D1DA0A9FE3F063C3331A866
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter adrian__luca
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
238
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b56b1cd85f7629245b8688d774aac1a87bf4d79bacc7a0207157f00894c7d405
Verdict:
Malicious activity
Analysis date:
2023-05-25 08:49:59 UTC
Tags:
n/a

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

Behaviour
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Reading critical registry keys
Creating a window
Setting a keyboard event handler
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
hacktool lolbin 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
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to register a low level keyboard hook
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
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
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2023-05-20 15:52:55 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
24 of 36 (66.67%)
Threat level:
  5/5
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 SetWindowsHookEx
outlook_office_path
outlook_win_path
Accesses Microsoft Outlook profiles
Adds Run key to start application
Looks up external IP address via web service
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:
b56b1cd85f7629245b8688d774aac1a87bf4d79bacc7a0207157f00894c7d405
MD5 hash:
29d6f0770960c8fec1286b389c9c87a1
SHA1 hash:
a04dc8cb8e4303bc6ed05a8ef91200596bb1ffa4
Detections:
AgentTeslaXorStringsNet
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: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: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.

Malspam

AgentTesla

Executable exe b56b1cd85f7629245b8688d774aac1a87bf4d79bacc7a0207157f00894c7d405

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments