MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d72087da88129a3b1bce3505c119cb418f84bd68659eb33385546b9e33dddb4c. 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 19 File information Comments

SHA256 hash: d72087da88129a3b1bce3505c119cb418f84bd68659eb33385546b9e33dddb4c
SHA3-384 hash: ab30d6a5838bc18335b0560de348e2ab8d4237e5e488a8bd391f6dc43dbd0cc41ac530016cc7ea8d6c7203dc0f68e97c
SHA1 hash: 731e51b1a3d522ea391495271d977e0e4961f203
MD5 hash: 7b4c1ed22b968699059bb4717e2665a7
humanhash: monkey-quiet-orange-high
File name:Halkbank_Ekstre_2024061918_088957_785452.xlxs.exe
Download: download sample
Signature AgentTesla
File size:2'007'144 bytes
First seen:2024-06-18 18:57:46 UTC
Last seen:2024-06-18 21:35:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 12288:xthPA7R1brgevLbkgpco8BuB+VotGHNq82Qd+Y9J7O+aL229GgPlZqUXJctT:xY7R1YeDogpvB/ktJ2Qd99Q9OsJcx
Threatray 4'111 similar samples on MalwareBazaar
TLSH T17B95015472779D5BFCA94A34C4E0B5F565FE9C433AF2860FEF924C2A6140BBD0214AB2
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 abuse_ch
Tags:AgentTesla exe geo Halkbank TUR

Intelligence


File Origin
# of uploads :
3
# of downloads :
356
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
d72087da88129a3b1bce3505c119cb418f84bd68659eb33385546b9e33dddb4c.exe
Verdict:
Malicious activity
Analysis date:
2024-06-18 19:15:51 UTC
Tags:
smtp evasion exfiltration stealer agenttesla

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Tags:
Banker Encryption Execution Generic Infostealer Network Gensteal Dexter
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Sending a custom TCP request
Creating a window
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
Creating a process with a hidden window
Launching a process
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
DNS request
Blocking the User Account Control
Forced shutdown of a system process
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  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
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
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)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
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)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1459101 Sample: Halkbank_Ekstre_2024061918_... Startdate: 18/06/2024 Architecture: WINDOWS Score: 100 34 oserfech.eu 2->34 36 mail.oserfech.eu 2->36 38 2 other IPs or domains 2->38 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 Multi AV Scanner detection for submitted file 2->58 60 8 other signatures 2->60 8 Halkbank_Ekstre_2024061918_088957_785452.xlxs.exe 1 3 2->8         started        11 plQRnonsft.exe 2->11         started        13 plQRnonsft.exe 2->13         started        signatures3 process4 signatures5 62 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 8->62 64 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->64 66 Writes to foreign memory regions 8->66 68 4 other signatures 8->68 15 CasPol.exe 16 6 8->15         started        20 powershell.exe 23 8->20         started        22 WerFault.exe 19 16 8->22         started        24 conhost.exe 11->24         started        26 conhost.exe 13->26         started        process6 dnsIp7 40 oserfech.eu 91.235.116.231, 49703, 49710, 587 THCPROJECTSRO Romania 15->40 42 api.ipify.org 172.67.74.152, 443, 49702 CLOUDFLARENETUS United States 15->42 32 C:\Users\user\AppData\...\plQRnonsft.exe, PE32 15->32 dropped 44 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->44 46 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->46 48 Tries to steal Mail credentials (via file / registry access) 15->48 52 4 other signatures 15->52 50 Loading BitLocker PowerShell Module 20->50 28 conhost.exe 20->28         started        30 WmiPrvSE.exe 20->30         started        file8 signatures9 process10
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Status:
Malicious
First seen:
2024-06-18 09:09:42 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
2
AV detection:
19 of 24 (79.17%)
Threat level:
  2/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla evasion execution keylogger persistence spyware stealer trojan
Behaviour
Suspicious use of WriteProcessMemory
System policy modification
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Looks up external IP address via web service
Maps connected drives based on registry
Checks BIOS information in registry
Checks computer location settings
Reads WinSCP keys stored on the system
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Windows security modification
Command and Scripting Interpreter: PowerShell
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
AgentTesla
UAC bypass
Windows security bypass
Unpacked files
SH256 hash:
d72087da88129a3b1bce3505c119cb418f84bd68659eb33385546b9e33dddb4c
MD5 hash:
7b4c1ed22b968699059bb4717e2665a7
SHA1 hash:
731e51b1a3d522ea391495271d977e0e4961f203
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:Multifamily_RAT_Detection
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
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_9f4a80b2
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.

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

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