MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2a9db4456d0ee009a17482f90dacc24b17024858afde686cdb7417a757aa5f6d. 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 15 File information Comments

SHA256 hash: 2a9db4456d0ee009a17482f90dacc24b17024858afde686cdb7417a757aa5f6d
SHA3-384 hash: d0b6d746fa898809198b839f382db02d807c329e100fcbd2b22918a7a97f86a70bb5451f9be87cde5966fadf6bac1d62
SHA1 hash: 464bbf490da0cc30a88b300387e6e74b07b6b8ca
MD5 hash: 806d4baac96113163e97ebe004661b0b
humanhash: social-massachusetts-kentucky-spaghetti
File name:Cerere de cotatie.xla
Download: download sample
Signature AgentTesla
File size:573'952 bytes
First seen:2024-02-20 07:04:17 UTC
Last seen:2024-02-20 19:21:02 UTC
File type:Excel file xlsx
MIME type:application/vnd.ms-excel
ssdeep 12288:6Tkj8VBzBZcQpozwjTqCfgeGHGhEgar4:6fBeWWCfgpHKQr4
TLSH T1A2C4225974EEEE5BC687D4710F94C077635AFC418B52D827249CBB0D1E7EB828362BA0
TrID 46.5% (.XLS) Microsoft Excel sheet (alternate) (56500/1/4)
26.7% (.XLS) Microsoft Excel sheet (32500/1/3)
20.1% (.XLS) Microsoft Excel sheet (alternate) (24500/1/2)
6.5% (.) Generic OLE2 / Multistream Compound (8000/1)
Reporter abuse_ch
Tags:AgentTesla cve-2017-0199 xla xlsx

Intelligence


File Origin
# of uploads :
2
# of downloads :
342
Origin country :
NL NL
Vendor Threat Intelligence
Verdict:
Legit
File type:
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
Has a screenshot:
False
Contains macros:
False
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Changing an executable file
Using the Windows Management Instrumentation requests
Creating a window
Sending an HTTP GET request
Searching for synchronization primitives
Launching a process
Сreating synchronization primitives
Creating a file
Creating a process with a hidden window
Running batch commands
Connection attempt by exploiting the app vulnerability
Launching a process by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
Legacy Excel File with Macro
Payload URLs
URL
File name
http://107.173.4.5/sweetpotattolikebabiesareusingballonforudationofnewverygoodupdatesfromthepcfornewsureupdatemakefasterp.doC
Embedded Ole
Behaviour
BlacklistAPI detected
Document image
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
embedequation exploit macros masquerade shellcode
Label:
Benign
Suspicious Score:
1.2/10
Score Malicious:
12%
Score Benign:
88%
Result
Verdict:
MALICIOUS
Details
Document With Few Pages
Document contains between one and three pages of content. Most malicious documents are sparse in page count.
Document With Minimal Content
Document contains less than 1 kilobyte of semantic information.
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
spre.troj.spyw.expl.evad
Score:
100 / 100
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
Check if machine is in data center or colocation facility
Connects to a pastebin service (likely for C&C)
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Document exploit detected (process start blacklist hit)
Excel sheet contains many unusual embedded objects
Found malware configuration
Injects a PE file into a foreign processes
Installs new ROOT certificates
Malicious sample detected (through community Yara rule)
Microsoft Office drops suspicious files
Microsoft Office launches external ms-search protocol handler (WebDAV)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Office equation editor establishes network connection
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Office viewer loads remote template
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)
Shellcode detected
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: Equation Editor Network Connection
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: Potential PowerShell Obfuscation Via Reversed Commands
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Powershell download and load assembly
Sigma detected: Powershell download payload from hardcoded c2 list
Sigma detected: Script Initiated Connection to Non-Local Network
Sigma detected: Suspicious Microsoft Office Child Process
Sigma detected: WScript or CScript Dropper
Snort IDS alert for network traffic
Suspicious execution chain found
Suspicious powershell command line found
System process connects to network (likely due to code injection or exploit)
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 steal Mail credentials (via file / registry access)
Very long command line found
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected AgentTesla
Yara detected Generic Downloader
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1395032 Sample: Cerere de cotatie.xla.xlsx Startdate: 20/02/2024 Architecture: WINDOWS Score: 100 70 Snort IDS alert for network traffic 2->70 72 Multi AV Scanner detection for domain / URL 2->72 74 Found malware configuration 2->74 76 23 other signatures 2->76 9 EXCEL.EXE 52 64 2->9         started        process3 dnsIp4 58 107.173.4.5, 49162, 49163, 49164 AS-COLOCROSSINGUS United States 9->58 48 sweetpotattolikeba...emakefasterp[1].doc, ISO-8859 9->48 dropped 13 wscript.exe 1 9->13         started        17 WINWORD.EXE 345 41 9->17         started        20 AcroRd32.exe 28 9->20         started        file5 process6 dnsIp7 60 paste.ee 13->60 62 104.21.84.67, 443, 49168 CLOUDFLARENETUS United States 13->62 92 System process connects to network (likely due to code injection or exploit) 13->92 94 Suspicious powershell command line found 13->94 96 Wscript starts Powershell (via cmd or directly) 13->96 106 5 other signatures 13->106 22 powershell.exe 4 13->22         started        25 cmd.exe 13->25         started        40 sweetpotattolikeba...makefasterp.doC.url, MS 17->40 dropped 42 C:\Users\user\AppData\...\107.173.4.5.url, MS 17->42 dropped 44 ~WRF{02507E61-EC1A...1-7A2AA28EEA68}.tmp, Composite 17->44 dropped 46 C:\Users\user\AppData\Local\...\51B61DC0.doc, ISO-8859 17->46 dropped 98 Microsoft Office launches external ms-search protocol handler (WebDAV) 17->98 100 Office viewer loads remote template 17->100 102 Microsoft Office drops suspicious files 17->102 27 EQNEDT32.EXE 12 17->27         started        30 RdrCEF.exe 2 20->30         started        file8 104 Connects to a pastebin service (likely for C&C) 60->104 signatures9 process10 file11 86 Suspicious powershell command line found 22->86 32 powershell.exe 12 5 22->32         started        50 C:\Users\user\AppData\...\caliallalala.vbs, Unicode 27->50 dropped 52 C:\Users\user\AppData\...\caliallalala[1].vbs, Unicode 27->52 dropped 88 Office equation editor establishes network connection 27->88 90 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 27->90 signatures12 process13 dnsIp14 54 45.74.19.84, 49170, 80 HVC-ASUS United States 32->54 64 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 32->64 66 Writes to foreign memory regions 32->66 68 Injects a PE file into a foreign processes 32->68 36 AddInProcess32.exe 32->36         started        signatures15 process16 dnsIp17 56 ip-api.com 208.95.112.1, 49172, 80 TUT-ASUS United States 36->56 78 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 36->78 80 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 36->80 82 Tries to steal Mail credentials (via file / registry access) 36->82 84 2 other signatures 36->84 signatures18
Threat name:
Document-Office.Exploit.CVE-2017-0199
Status:
Malicious
First seen:
2024-02-19 10:46:31 UTC
File Type:
Document
Extracted files:
78
AV detection:
9 of 38 (23.68%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
Modifies registry class
Script User-Agent
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
Uses Volume Shadow Copy service COM API
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
Drops file in System32 directory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Abuses OpenXML format to download file from external location
Blocklisted process makes network request
AgentTesla
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:Borland
Author:malware-lu
Rule name:Check_OutputDebugStringA_iat
Rule name:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:informational_win_ole_protected
Author:Jeff White (karttoon@gmail.com) @noottrak
Description:Identify OLE Project protection within documents.
Rule name:maldoc_getEIP_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_OLE_file_magic_number
Author:Didier Stevens (https://DidierStevens.com)
Rule name:malware_shellcode_hash
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:meth_get_eip
Author:Willi Ballenthin
Rule name:office_document_vba
Author:Jean-Philippe Teissier / @Jipe_
Description:Office document with embedded VBA
Reference:https://github.com/jipegit/
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:pe_no_import_table
Description:Detect pe file that no import table
Rule name:SEH__vba
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:vmdetect
Author:nex
Description:Possibly employs anti-virtualization techniques

File information


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

Malspam

AgentTesla

Excel file xlsx 2a9db4456d0ee009a17482f90dacc24b17024858afde686cdb7417a757aa5f6d

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments