MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b810eb14acebc55075e198279bc938022c9ae92e3cc58091ac1dc61eb1e4b30a. 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: 12


Intelligence 12 IOCs YARA 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b810eb14acebc55075e198279bc938022c9ae92e3cc58091ac1dc61eb1e4b30a
SHA3-384 hash: 09646e18895f1b3d1244f19ca088f8cc479bc3833d6c3cdddbbfd94667f9fc638d0c5a44462ff331e9edb98bbf714802
SHA1 hash: d846c468131792521d01983a69fe18146ed85f7d
MD5 hash: ab8d37015f44647431a538a25e0b0a1f
humanhash: maryland-fifteen-network-maryland
File name:νέα παραγγελία(purchase order)_765347897896786454567653.xla
Download: download sample
Signature AgentTesla
Create hunting rule
File size:50'688 bytes
First seen:2024-04-15 05:24:52 UTC
Last seen:2024-04-15 06:34:47 UTC
File type:Excel file xlsx
MIME type:application/vnd.ms-excel
ssdeep 768:fyBP0S6kQatpTKrQ489wQ+C+IoBjzYAJ4aMETFI3fhVmO+6L:f68S6RatpL9SgSXJs3fh0O+
TLSH T1C433BD2532C5E58AD157CA780ED8C1DB6611BC66AE93CA0F7190FB0F19792D28E9370B
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 :
626
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b810eb14acebc55075e198279bc938022c9ae92e3cc58091ac1dc61eb1e4b30a.xlsx
Verdict:
No threats detected
Analysis date:
2024-04-15 05:27:29 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/b524d04b-d425-4e24-a949-224c4df68cba

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
Creating a window
DNS request
Sending an HTTP GET request
Sending an HTTP GET request to an infection source by exploiting the app vulnerability
Searching for synchronization primitives
Launching a process
Сreating synchronization primitives
Creating a file
Connection attempt
Sending a custom TCP request
Creating a file in the %AppData% directory
Creating a process with a hidden window
Connection attempt by exploiting the app vulnerability
Sending a custom TCP request by exploiting the app vulnerability
Connection attempt to an infection source by exploiting the app vulnerability
Launching a process by exploiting the app vulnerability
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
Legacy Excel File with Macro
Link:
https://app.docguard.net/b810eb14acebc55075e198279bc938022c9ae92e3cc58091ac1dc61eb1e4b30a/results/dashboard
Payload URLs
URL
File name
http://lnkz.at/LH6dJ
Embedded Ole
Behaviour
SuspiciousRTF detected
Verdict:
Suspicious
Labled as:
CVE-2017-0199
Link:
https://www.hybrid-analysis.com/sample/b810eb14acebc55075e198279bc938022c9ae92e3cc58091ac1dc61eb1e4b30a
Label:
Benign
Suspicious Score:
4.8/10
Score Malicious:
48%
Score Benign:
52%
Link:
https://www.malware.ai/gui/files/?id=ad1c76ac-6b12-493a-9042-bb59c36227b2
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/b810eb14acebc55075e198279bc938022c9ae92e3cc58091ac1dc61eb1e4b30a
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1425937
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
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)
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
Malicious sample detected (through community Yara rule)
Microsoft Office drops suspicious files
Microsoft Office launches external ms-search protocol handler (WebDAV)
Office drops RTF 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)
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: 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
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)
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
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1425937 Sample: 653.xla.xlsx Startdate: 15/04/2024 Architecture: WINDOWS Score: 100 47 lnkz.at 2->47 57 Snort IDS alert for network traffic 2->57 59 Found malware configuration 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 21 other signatures 2->63 9 EXCEL.EXE 51 40 2->9         started        signatures3 process4 dnsIp5 51 lnkz.at 104.21.18.65, 443, 49161, 49162 CLOUDFLARENETUS United States 9->51 53 198.12.81.144, 49163, 49170, 49171 AS-COLOCROSSINGUS United States 9->53 43 xlaisveryeasyproce...trulyfromthe[1].doc, Rich 9->43 dropped 13 wscript.exe 3 9->13         started        16 WINWORD.EXE 336 39 9->16         started        file6 process7 dnsIp8 83 Suspicious powershell command line found 13->83 85 Wscript starts Powershell (via cmd or directly) 13->85 87 Windows Scripting host queries suspicious COM object (likely to drop second stage) 13->87 89 Suspicious execution chain found 13->89 20 powershell.exe 12 5 13->20         started        45 lnkz.at 16->45 31 C:\Users\user\AppData\Roaming\...\lnkz.at.url, MS 16->31 dropped 33 C:\Users\user\AppData\Roaming\...\LH6dJ.url, MS 16->33 dropped 35 ~WRF{C1AF167E-0CCC...2-C8B879FADAB0}.tmp, Composite 16->35 dropped 37 C:\Users\user\AppData\Local\...\DA4BF6CF.doc, Rich 16->37 dropped 91 Microsoft Office launches external ms-search protocol handler (WebDAV) 16->91 93 Office viewer loads remote template 16->93 95 Microsoft Office drops suspicious files 16->95 24 EQNEDT32.EXE 12 16->24         started        file9 signatures10 process11 dnsIp12 49 uploaddeimagens.com.br 104.21.45.138, 443, 49172, 49173 CLOUDFLARENETUS United States 20->49 65 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 20->65 67 Writes to foreign memory regions 20->67 69 Injects a PE file into a foreign processes 20->69 27 AddInProcess32.exe 12 2 20->27         started        39 C:\Users\user\AppData\Roaming\forxla.js, Unicode 24->39 dropped 41 C:\Users\user\AppData\Local\...\forXLA[1].js, Unicode 24->41 dropped 71 Office equation editor establishes network connection 24->71 73 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 24->73 file13 signatures14 process15 dnsIp16 55 ip-api.com 208.95.112.1, 49175, 80 TUT-ASUS United States 27->55 75 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 27->75 77 Tries to steal Mail credentials (via file / registry access) 27->77 79 Tries to harvest and steal browser information (history, passwords, etc) 27->79 81 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 27->81 signatures17
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b810eb14acebc55075e198279bc938022c9ae92e3cc58091ac1dc61eb1e4b30a/
Threat name:
Document-Office.Exploit.CVE-2017-0199
Create hunting rule
Status:
Malicious
First seen:
2024-04-15 04:52:08 UTC
File Type:
Document
Extracted files:
35
AV detection:
12 of 23 (52.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xaiowffm5pcva5pbtatzxsjyaiwjv2johtcybenmdxdb5mpewmfa._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240415-f3949sff78/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
Modifies registry class
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
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b810eb14aceb/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b810eb14acebc55075e198279bc938022c9ae92e3cc58091ac1dc61eb1e4b30a

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:Borland
Create hunting rule
Author:malware-lu
Rule name:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:informational_win_ole_protected
Create hunting rule
Author:Jeff White (karttoon@gmail.com) @noottrak
Description:Identify OLE Project protection within documents.
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_OLE_file_magic_number
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:malware_shellcode_hash
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:office_document_vba
Create hunting rule
Author:Jean-Philippe Teissier / @Jipe_
Description:Office document with embedded VBA
Reference:https://github.com/jipegit/
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:SEH__vba
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:vmdetect
Create hunting rule
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.

Comments