MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8a4401b2bfd1bf7cd88327ad700415d6d785d64a403967052ff8f90752f35339. 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: 15


Intelligence 15 IOCs YARA 9 File information Comments

SHA256 hash: 8a4401b2bfd1bf7cd88327ad700415d6d785d64a403967052ff8f90752f35339
SHA3-384 hash: 25f0254255763cfb8d016a50126dad167be081949ab17ebb5116310853fd5ba98f2f085fbc34990dc93701cc533ab572
SHA1 hash: c098cb76892d3a15e411df6f7609898bb3eded3c
MD5 hash: c9529a25d594961e607b4dcae422cb3a
humanhash: spaghetti-iowa-stream-twelve
File name:8a4401b2bfd1bf7cd88327ad700415d6d785d64a403967052ff8f90752f35339
Download: download sample
Signature AgentTesla
File size:993'261 bytes
First seen:2023-09-05 10:50:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 12e12319f1029ec4f8fcbed7e82df162 (389 x DCRat, 52 x RedLineStealer, 51 x Formbook)
ssdeep 24576:NTbBv5rUanD9l9oJVxmemCppraBGa6mXcqIAXiAQFSDJ:HBja7xmem6prvLAXiAVV
Threatray 5'468 similar samples on MalwareBazaar
TLSH T1D0251202BAC15872C472193759B4AB21AE7DBD305FA58ECFA3C04A2DDE315C1D631BB6
TrID 89.0% (.EXE) WinRAR Self Extracting archive (4.x-5.x) (265042/9/39)
3.5% (.EXE) Win64 Executable (generic) (10523/12/4)
2.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
1.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.5% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 74f4d4d4cce4e8e0 (27 x AgentTesla, 19 x Formbook, 17 x DBatLoader)
Reporter adrian__luca
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
285
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
8a4401b2bfd1bf7cd88327ad700415d6d785d64a403967052ff8f90752f35339
Verdict:
Malicious activity
Analysis date:
2023-09-05 10:49:44 UTC
Tags:
autoit stealer agenttesla

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

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file in the %temp% subdirectories
Launching a process
Running batch commands
Creating a process with a hidden window
Creating a process from a recently created file
Sending a UDP request
DNS request
Creating a file
Using the Windows Management Instrumentation requests
Unauthorized injection to a system process
Gathering data
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm autoit cmd control evasive greyware keylogger lolbin overlay packed replace setupapi shdocvw shell32 wscript wscript
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
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
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
Starts an encoded Visual Basic Script (VBE)
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 Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses ipconfig to lookup or modify the Windows network settings
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Yara detected AgentTesla
Yara detected AntiVM autoit script
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1303448 Sample: MJmNRo1rSC.exe Startdate: 05/09/2023 Architecture: WINDOWS Score: 100 48 Found malware configuration 2->48 50 Multi AV Scanner detection for submitted file 2->50 52 Yara detected AgentTesla 2->52 54 3 other signatures 2->54 9 MJmNRo1rSC.exe 75 2->9         started        process3 file4 40 C:\Users\user\AppData\Local\...\lwbgvhqn.pdf, PE32 9->40 dropped 68 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 9->68 70 Starts an encoded Visual Basic Script (VBE) 9->70 13 wscript.exe 1 9->13         started        signatures5 process6 signatures7 72 Windows Scripting host queries suspicious COM object (likely to drop second stage) 13->72 16 cmd.exe 1 13->16         started        18 cmd.exe 1 13->18         started        21 cmd.exe 1 13->21         started        process8 signatures9 23 lwbgvhqn.pdf 2 16->23         started        26 conhost.exe 16->26         started        56 Uses ipconfig to lookup or modify the Windows network settings 18->56 28 conhost.exe 18->28         started        30 ipconfig.exe 1 18->30         started        32 conhost.exe 21->32         started        34 ipconfig.exe 1 21->34         started        process10 signatures11 66 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 23->66 36 RegSvcs.exe 15 2 23->36         started        process12 dnsIp13 42 asgamaltex.com 104.152.168.38, 49719, 587 CROCWEBCA Canada 36->42 44 mail.asgamaltex.com 36->44 46 2 other IPs or domains 36->46 58 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 36->58 60 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 36->60 62 May check the online IP address of the machine 36->62 64 2 other signatures 36->64 signatures14
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2023-08-22 07:39:26 UTC
File Type:
PE (Exe)
Extracted files:
100
AV detection:
22 of 38 (57.89%)
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 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
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
AgentTesla
Unpacked files
SH256 hash:
8a4401b2bfd1bf7cd88327ad700415d6d785d64a403967052ff8f90752f35339
MD5 hash:
c9529a25d594961e607b4dcae422cb3a
SHA1 hash:
c098cb76892d3a15e411df6f7609898bb3eded3c
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:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:INDICATOR_EXE_Packed_GEN01
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:maldoc_find_kernel32_base_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:pe_imphash
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SelfExtractingRAR
Author:Xavier Mertens
Description:Detects an SFX archive with automatic script execution
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
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.

Comments