MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 86744ad357edc64f956c3a8df9c8bd852ae125189e80652703dc5624a97584a6. 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: 17


Intelligence 17 IOCs YARA 18 File information Comments

SHA256 hash: 86744ad357edc64f956c3a8df9c8bd852ae125189e80652703dc5624a97584a6
SHA3-384 hash: 0339df5ce264609bf24a8b61342b1a941e220f81b4809d7a5ddadf684926e99f04d530dc234109deeabd2b3b28b1ec9d
SHA1 hash: 60342fb0ee1a34ecc2e3430f0f62aaa69a6e1a57
MD5 hash: edef0d2515fc3452e4175b3d223a5f90
humanhash: hamper-five-oxygen-georgia
File name:rRFQ_TSL104_20221024_pdf.exe
Download: download sample
Signature AgentTesla
File size:3'057'277 bytes
First seen:2024-06-18 21:01:38 UTC
Last seen:2024-06-19 06:58:46 UTC
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 12288:VYXxEe0uZOuUTwUqdkvub/jBLLlB3xYyWtORM0rTKAnYMlvs3iZDjNFGjM9D:qRNuXOhRvLxYyuwRrT5nYqvs4DWiD
Threatray 4'149 similar samples on MalwareBazaar
TLSH T160E512A532AB4D4BFC2A8634E4F430F505FE6D8336F2966FEF950DA42446BBC49502B1
TrID 44.4% (.EXE) Win64 Executable (generic) (10523/12/4)
21.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.7% (.ICL) Windows Icons Library (generic) (2059/9)
8.5% (.EXE) OS/2 Executable (generic) (2029/13)
8.4% (.EXE) Generic Win/DOS Executable (2002/3)
Reporter FXOLabs
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
4
# of downloads :
401
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
86744ad357edc64f956c3a8df9c8bd852ae125189e80652703dc5624a97584a6.exe
Verdict:
Malicious activity
Analysis date:
2024-06-18 21:03:22 UTC
Tags:
telegram exfiltration stealer agenttesla

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
Banker Encryption Execution Generic Stealth Gensteal Dexter
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a process with a hidden window
Launching a process
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Using the Windows Management Instrumentation requests
Searching for the window
Reading critical registry keys
DNS request
Connection attempt
Sending a custom TCP request
Creating a window
Blocking the User Account Control
Stealing user critical data
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade overlay vbnet
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.expl.evad
Score:
100 / 100
Signature
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Allocates memory in foreign processes
Contains functionality to log keystrokes (.Net Source)
Disables UAC (registry)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Snort IDS alert for network traffic
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 ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses the Telegram API (likely for C&C communication)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Telegram RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1459157 Sample: rRFQ_TSL104_20221024_pdf.exe Startdate: 18/06/2024 Architecture: WINDOWS Score: 100 25 api.telegram.org 2->25 29 Snort IDS alert for network traffic 2->29 31 Found malware configuration 2->31 33 Malicious sample detected (through community Yara rule) 2->33 37 11 other signatures 2->37 8 rRFQ_TSL104_20221024_pdf.exe 1 3 2->8         started        signatures3 35 Uses the Telegram API (likely for C&C communication) 25->35 process4 signatures5 39 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->39 41 Writes to foreign memory regions 8->41 43 Allocates memory in foreign processes 8->43 45 3 other signatures 8->45 11 RegAsm.exe 14 2 8->11         started        15 powershell.exe 23 8->15         started        17 WerFault.exe 19 16 8->17         started        19 RegAsm.exe 8->19         started        process6 dnsIp7 27 api.telegram.org 149.154.167.220, 443, 49732 TELEGRAMRU United Kingdom 11->27 47 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->47 49 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->49 51 Tries to steal Mail credentials (via file / registry access) 11->51 55 2 other signatures 11->55 53 Loading BitLocker PowerShell Module 15->53 21 conhost.exe 15->21         started        23 WmiPrvSE.exe 15->23         started        signatures8 process9
Threat name:
ByteCode-MSIL.Trojan.Injuke
Status:
Malicious
First seen:
2024-06-18 15:42:38 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
1
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla evasion execution keylogger spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Checks computer location settings
Windows security modification
Command and Scripting Interpreter: PowerShell
AgentTesla
UAC bypass
Windows security bypass
Malware Config
C2 Extraction:
https://api.telegram.org/bot7261799157:AAHbEGrAXqYSY7AMfUzmzD3U1FgkRxHSXws/
Unpacked files
SH256 hash:
86744ad357edc64f956c3a8df9c8bd852ae125189e80652703dc5624a97584a6
MD5 hash:
edef0d2515fc3452e4175b3d223a5f90
SHA1 hash:
60342fb0ee1a34ecc2e3430f0f62aaa69a6e1a57
Malware family:
AgentTesla
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:AgentTeslaV5
Author:ClaudioWayne
Description:AgentTeslaV5 infostealer payload
Rule name:Agenttesla_type2
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:INDICATOR_EXE_Packed_GEN01
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:pe_no_import_table
Description:Detect pe file that no import table
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Generic_Threat_808f680e
Author:Elastic Security
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/attack-chain-leads-to-xworm-and-agenttesla

File information


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

Malspam

AgentTesla

Executable exe 86744ad357edc64f956c3a8df9c8bd852ae125189e80652703dc5624a97584a6

(this sample)

  
Delivery method
Distributed via e-mail attachment

BLint


The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments