MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 02e273a2f40b1a10f15b08d4dee9356f778a82ee48dc9bad878fb4d789d01431. 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: 14


Maldoc score: 4


Intelligence 14 IOCs YARA 3 File information Comments

SHA256 hash: 02e273a2f40b1a10f15b08d4dee9356f778a82ee48dc9bad878fb4d789d01431
SHA3-384 hash: 38f0f5dab8b66d96248b7304605b5a7c905d3d4c886fce7d11e24ad0caf3874f3eb65c83e226c2d05dc4c26be33f506a
SHA1 hash: 01b1a3c676dbc370fb1916ef17f9bb0309d5b966
MD5 hash: c53132c26ed5a87968bd23ff41c485ba
humanhash: shade-bulldog-diet-blossom
File name:PO_Copy.xls
Download: download sample
Signature AgentTesla
File size:401'408 bytes
First seen:2023-12-08 10:00:38 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 6144:Cn1m9kdb/PpeZHVl3S4qQygZpuUXI+FzkEM3Kajs5yiIIrjj5vQDwMm4EHnO:COeDuni5XgZTI+eEuKGiIIryDLm42
TLSH T1AA840216F199C71BDC679830DCC9B4CAD238EC689F05A38B36C5B34F81367719236A99
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 xls

Office OLE Information


This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.

OLE id
Maldoc score: 4
OLE dump

MalwareBazaar was able to identify 15 sections in this file using oledump:

Section IDSection sizeSection name
1114 bytesCompObj
2244 bytesDocumentSummaryInformation
3200 bytesSummaryInformation
499 bytesMBD00021E55/CompObj
5200807 bytesMBD00021E55/Package
6942 bytesMBD00021E56/Ole
7182080 bytesWorkbook
8533 bytes_VBA_PROJECT_CUR/PROJECT
9104 bytes_VBA_PROJECT_CUR/PROJECTwm
10977 bytes_VBA_PROJECT_CUR/VBA/Sheet1
11977 bytes_VBA_PROJECT_CUR/VBA/Sheet2
12977 bytes_VBA_PROJECT_CUR/VBA/Sheet3
13985 bytes_VBA_PROJECT_CUR/VBA/ThisWorkbook
142644 bytes_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
15553 bytes_VBA_PROJECT_CUR/VBA/dir
OLE vba

MalwareBazaar was able to extract and deobfuscate VBA script(s) the following information from OLE objects embedded in this file using olevba:

TypeKeywordDescription
SuspiciousHex StringsHex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence


File Origin
# of uploads :
1
# of downloads :
331
Origin country :
NL NL
Vendor Threat Intelligence
Verdict:
Legit
File type:
application/vnd.ms-excel
Has a screenshot:
False
Contains macros:
False
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Sending a custom TCP request
Creating a window
Searching for synchronization primitives
Launching a process
Сreating synchronization primitives
Sending an HTTP GET request to an infection source 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://192.3.179.162/hdw/Microsoftdecidedtodeleteentirehistorycachecookieeverythingfromthepc.Doc
Embedded Ole
Behaviour
SuspiciousRTF detected
Document image
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
embedequation exploit macros shellcode sload
Label:
Malicious
Suspicious Score:
5.2/10
Score Malicious:
53%
Score Benign:
47%
Result
Threat name:
AgentTesla, DarkTortilla
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Antivirus detection for dropped file
Antivirus detection for URL or domain
Excel sheet contains many unusual embedded objects
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Injects files into Windows application
Machine Learning detection for dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Office equation editor drops PE 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)
Sample uses string decryption to hide its real strings
Shellcode detected
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
Tries to harvest and steal browser information (history, passwords, etc)
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 DarkTortilla Crypter
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1356098 Sample: PO_Copy.xls Startdate: 08/12/2023 Architecture: WINDOWS Score: 100 40 Multi AV Scanner detection for domain / URL 2->40 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 14 other signatures 2->46 7 EQNEDT32.EXE 12 2->7         started        11 WINWORD.EXE 346 49 2->11         started        13 EXCEL.EXE 57 49 2->13         started        16 AcroRd32.exe 21 2->16         started        process3 dnsIp4 24 C:\Users\user\AppData\Roaming\wlanext.exe, PE32 7->24 dropped 26 C:\Users\user\AppData\...\wlanext[1].exe, PE32 7->26 dropped 64 Office equation editor establishes network connection 7->64 66 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 7->66 18 wlanext.exe 1 7 7->18         started        28 C:\Users\user\...\hdw on 192.3.179.162.url, MS 11->28 dropped 30 Microsoftdecidedto...ngfromthepc.Doc.url, MS 11->30 dropped 32 ~WRF{88BF2040-EC3B...2-E5FC43868DD8}.tmp, Composite 11->32 dropped 34 C:\Users\user\AppData\Local\...\D52E3F80.doc, ISO-8859 11->34 dropped 68 Microsoft Office launches external ms-search protocol handler (WebDAV) 11->68 70 Office viewer loads remote template 11->70 72 Microsoft Office drops suspicious files 11->72 38 192.3.179.162, 49164, 49165, 49166 AS-COLOCROSSINGUS United States 13->38 36 Microsoftdecidedto...ingfromthepc[1].doc, ISO-8859 13->36 dropped 74 Injects files into Windows application 13->74 file5 signatures6 process7 signatures8 48 Antivirus detection for dropped file 18->48 50 Multi AV Scanner detection for dropped file 18->50 52 Machine Learning detection for dropped file 18->52 54 4 other signatures 18->54 21 RegAsm.exe 2 18->21         started        process9 signatures10 56 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 21->56 58 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 21->58 60 Tries to steal Mail credentials (via file / registry access) 21->60 62 Tries to harvest and steal browser information (history, passwords, etc) 21->62
Threat name:
Document-Office.Exploit.CVE-2017-0199
Status:
Malicious
First seen:
2023-12-07 06:13:46 UTC
File Type:
Document
Extracted files:
91
AV detection:
10 of 23 (43.48%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla collection 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
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
outlook_office_path
outlook_win_path
Office loads VBA resources, possible macro or embedded object present
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Abuses OpenXML format to download file from external location
Executes dropped EXE
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Blocklisted process makes network request
Downloads MZ/PE file
AgentTesla
Malware family:
AgentTesla.v4
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:informational_win_ole_protected
Author:Jeff White (karttoon@gmail.com) @noottrak
Description:Identify OLE Project protection within documents.
Rule name:maldoc_OLE_file_magic_number
Author:Didier Stevens (https://DidierStevens.com)
Rule name:office_document_vba
Author:Jean-Philippe Teissier / @Jipe_
Description:Office document with embedded VBA
Reference:https://github.com/jipegit/

File information


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

Malspam

AgentTesla

Excel file xls 02e273a2f40b1a10f15b08d4dee9356f778a82ee48dc9bad878fb4d789d01431

(this sample)

  
Delivery method
Distributed via e-mail attachment

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