MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 034a3732828ad09b79a12c66bf7eee3058427808bdae8b19291fffc828ee1fbf. 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: 13


Intelligence 13 IOCs YARA 20 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 034a3732828ad09b79a12c66bf7eee3058427808bdae8b19291fffc828ee1fbf
SHA3-384 hash: a646710a3e81c1135108f675ada63cfece8fb8033375eb9808a875b1153a38573b65307f2c65497d8cf5e43dc17a247a
SHA1 hash: ed66aadb1b165388e5a132f43874f385db546379
MD5 hash: 4ac88ef7fe497d568f8c0256627f4f28
humanhash: avocado-mississippi-venus-island
File name:SARL RABINEAU Order FA2495.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:624'509 bytes
First seen:2024-04-24 14:26:07 UTC
Last seen:2024-04-29 07:06:23 UTC
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 12288:IxbVNv5uSru57PQFztYF2vLRHQ36D78MmeOZWczK3rlHxsKIy:IxRV5Lru57YF+iQe8MdM0JOy
TLSH T14AD42317FB961632DDC727F81877AB09237E4D67E2A3F76A0A43255A06897DE1B00370
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 cocaman
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
400
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
034a3732828ad09b79a12c66bf7eee3058427808bdae8b19291fffc828ee1fbf.exe
Verdict:
Malicious activity
Analysis date:
2024-04-24 14:28:49 UTC
Tags:
evasion smtp agenttesla stealer
Link:
https://app.any.run/tasks/4dd8a21f-1332-48f9-aed2-ad816e4c6ce7

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
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Creating a file
Launching a process
Creating a process from a recently created file
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
DNS request
Connection attempt
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Sending a custom TCP request
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Blocking the User Account Control
Stealing user critical data
Enabling autorun by creating a file
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 packed
Link:
https://www.filescan.io/uploads/662916b914ba3ce82899d05c/reports/1a0633c0-93c8-49c1-a357-e1e2f673c22d/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/034a3732828ad09b79a12c66bf7eee3058427808bdae8b19291fffc828ee1fbf
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.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/6014e4a9-583a-416a-bfb0-09d19956cada
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1431147
Signature
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Creates multiple autostart registry keys
Disables UAC (registry)
Drops PE files with benign system names
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped 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: Files With System Process Name In Unsuspected Locations
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Sigma detected: MSBuild connects to smtp port
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Schedule system process
Sigma detected: Silenttrinity Stager Msbuild Activity
Sigma detected: Suspect Svchost Activity
Sigma detected: System File Execution Location Anomaly
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 schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1431147 Sample: SARL RABINEAU  Order FA2495.exe Startdate: 24/04/2024 Architecture: WINDOWS Score: 100 75 mail.bonnyriggdentalsurgery.com.au 2->75 77 ip-api.com 2->77 83 Found malware configuration 2->83 85 Malicious sample detected (through community Yara rule) 2->85 87 Yara detected UAC Bypass using CMSTP 2->87 89 18 other signatures 2->89 10 SARL RABINEAU  Order FA2495.exe 1 6 2->10         started        14 svchost.exe 1 4 2->14         started        16 svchost.exe 2->16         started        18 8 other processes 2->18 signatures3 process4 file5 69 C:\Users\user\AppData\Roaming\svchost.exe, PE32+ 10->69 dropped 133 Creates multiple autostart registry keys 10->133 135 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 10->135 20 cmd.exe 1 10->20         started        22 conhost.exe 10->22         started        25 cmd.exe 1 10->25         started        137 Multi AV Scanner detection for dropped file 14->137 139 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 14->139 141 Writes to foreign memory regions 14->141 143 Disables UAC (registry) 14->143 27 MSBuild.exe 14->27         started        34 4 other processes 14->34 145 Adds a directory exclusion to Windows Defender 16->145 147 Injects a PE file into a foreign processes 16->147 30 RegSvcs.exe 16->30         started        36 4 other processes 16->36 71 C:\Windows\Temp\mpiucvq2.inf, Windows 18->71 dropped 73 C:\Windows\Temp\euyks051.inf, Windows 18->73 dropped 32 AddInProcess32.exe 18->32         started        38 13 other processes 18->38 signatures6 process7 dnsIp8 40 svchost.exe 4 20->40         started        43 conhost.exe 20->43         started        45 timeout.exe 1 20->45         started        91 Adds a directory exclusion to Windows Defender 22->91 93 Uses schtasks.exe or at.exe to add and modify task schedules 25->93 47 conhost.exe 25->47         started        49 schtasks.exe 1 25->49         started        81 ip-api.com 208.95.112.1, 49740, 49742, 49750 TUT-ASUS United States 27->81 95 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 27->95 97 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 27->97 99 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 27->99 101 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 27->101 103 Tries to steal Mail credentials (via file / registry access) 30->103 105 Hides that the sample has been downloaded from the Internet (zone.identifier) 30->105 107 Tries to harvest and steal ftp login credentials 32->107 109 Tries to harvest and steal browser information (history, passwords, etc) 32->109 51 conhost.exe 34->51         started        53 conhost.exe 36->53         started        111 Writes to foreign memory regions 38->111 113 Loading BitLocker PowerShell Module 38->113 55 conhost.exe 38->55         started        signatures9 process10 signatures11 115 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 40->115 117 Writes to foreign memory regions 40->117 119 Adds a directory exclusion to Windows Defender 40->119 121 Injects a PE file into a foreign processes 40->121 57 AddInProcess32.exe 40->57         started        61 powershell.exe 40->61         started        63 conhost.exe 40->63         started        65 WerFault.exe 40->65         started        process12 dnsIp13 79 mail.bonnyriggdentalsurgery.com.au 192.254.225.166, 49744, 49747, 49752 UNIFIEDLAYER-AS-1US United States 57->79 123 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 57->123 125 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 57->125 127 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 57->127 131 3 other signatures 57->131 129 Loading BitLocker PowerShell Module 61->129 67 conhost.exe 61->67         started        signatures14 process15
Score:
37%
Verdict:
Susipicious
File Type:
PE
Link:
https://malprob.io/report/034a3732828ad09b79a12c66bf7eee3058427808bdae8b19291fffc828ee1fbf
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/034a3732828ad09b79a12c66bf7eee3058427808bdae8b19291fffc828ee1fbf/
Threat name:
ByteCode-MSIL.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2024-04-24 12:17:54 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
1
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=anfdomucrlijw6nbfrtl67xogbmee6aixwxiwgjjd774qkhod67q._file
Verdict:
unknown
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/240424-rsefdsbe8w/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
Uses Task Scheduler COM API
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
Executes dropped EXE
Windows security modification
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
AgentTesla
UAC bypass
Windows security bypass
Unpacked files
SH256 hash:
034a3732828ad09b79a12c66bf7eee3058427808bdae8b19291fffc828ee1fbf
MD5 hash:
4ac88ef7fe497d568f8c0256627f4f28
SHA1 hash:
ed66aadb1b165388e5a132f43874f385db546379
Link:
https://www.unpac.me/results/20b8fe6f-20e5-4f2c-ad43-ec82b3a3ffe3/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/034a3732828ad09b79a12c66bf7eee3058427808bdae8b19291fffc828ee1fbf

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
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:AgentTeslaV5
Create hunting rule
Author:ClaudioWayne
Description:AgentTeslaV5 infostealer payload
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:INDICATOR_EXE_Packed_GEN01
Create hunting rule
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
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
Create hunting rule
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
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Create hunting rule
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

zip b9ff68d1e5f12ea6138a81bccaa9f6c892b9db34b39ce0d184d163af83769d02

AgentTesla

Executable exe 034a3732828ad09b79a12c66bf7eee3058427808bdae8b19291fffc828ee1fbf

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 b9ff68d1e5f12ea6138a81bccaa9f6c892b9db34b39ce0d184d163af83769d02
  
Dropped by
MD5 0334e0c91b331c229c4d75542ae16d8f

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