MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b4ba7b64ad1e137d2fda6386c8bf6d8df85342385f1f4a69f42ed6980b240c5d. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b4ba7b64ad1e137d2fda6386c8bf6d8df85342385f1f4a69f42ed6980b240c5d
SHA3-384 hash: 2776d046376bdaba3f4f3183404db68fe433a4e87f525ed90d7a9fb7539323891b71ad6e9b66ee2082f79c5bdfec0cb1
SHA1 hash: 4c1dbc8f7ab415a5050f75bcaec4b0763e9de57c
MD5 hash: d10dd49f30e5a94cb1fc9d1664d0b5c0
humanhash: social-may-potato-vegan
File name:57m³ LPG SEMI TRAILER 7 NOS.pdf.xls
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'180'160 bytes
First seen:2023-11-10 06:20:03 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 24576:auBSw6/uZy53bVtw6/WZyH3bV7H4M8/pCcDnIEv:R6/4c3bVe6/AO3bV7H4PUenIE
TLSH T14345DF03AC408B83D41D83F46EE34ED91F1ABF05EA916ADF1129BF5B3E706621D5B129
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-2017-11882 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 52 sections in this file using oledump:

Section IDSection sizeSection name
1114 bytesCompObj
2244 bytesDocumentSummaryInformation
3200 bytesSummaryInformation
494 bytesMBD00358D61/CompObj
562 bytesMBD00358D61/Ole
620409 bytesMBD00358D61/CONTENTS
794 bytesMBD00358D62/CompObj
862 bytesMBD00358D62/Ole
912169 bytesMBD00358D62/CONTENTS
1094 bytesMBD00358D63/CompObj
1162 bytesMBD00358D63/Ole
127284 bytesMBD00358D63/CONTENTS
1394 bytesMBD00358D64/CompObj
1462 bytesMBD00358D64/Ole
1564830 bytesMBD00358D64/CONTENTS
1693 bytesMBD00358D65/CompObj
1764 bytesMBD00358D65/Ole
18124841 bytesMBD00358D65/CONTENTS
19114 bytesMBD00358D66/CompObj
20708 bytesMBD00358D66/DocumentSummaryInformation
2123248 bytesMBD00358D66/SummaryInformation
2297872 bytesMBD00358D66/Workbook
23410 bytesMBD00358D66/_VBA_PROJECT_CUR/PROJECT
2462 bytesMBD00358D66/_VBA_PROJECT_CUR/PROJECTwm
25977 bytesMBD00358D66/_VBA_PROJECT_CUR/VBA/Sheet1
26985 bytesMBD00358D66/_VBA_PROJECT_CUR/VBA/ThisWorkbook
272329 bytesMBD00358D66/_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
28517 bytesMBD00358D66/_VBA_PROJECT_CUR/VBA/dir
2994 bytesMBD00358D67/CompObj
3062 bytesMBD00358D67/Ole
3164830 bytesMBD00358D67/CONTENTS
3293 bytesMBD00358D68/CompObj
3364 bytesMBD00358D68/Ole
34124841 bytesMBD00358D68/CONTENTS
35114 bytesMBD00358D69/CompObj
36708 bytesMBD00358D69/DocumentSummaryInformation
3723248 bytesMBD00358D69/SummaryInformation
3897872 bytesMBD00358D69/Workbook
390 bytesMBD00358D69/_VBA_PROJECT_CUR/VBA/Sheet1
400 bytesMBD00358D69/_VBA_PROJECT_CUR/VBA/ThisWorkbook
410 bytesMBD00358D69/_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
4220 bytesMBD00358D6A/Ole
431722 bytesMBD00358D6A/oLE10NatiVE
44475992 bytesWorkbook
45525 bytes_VBA_PROJECT_CUR/PROJECT
46104 bytes_VBA_PROJECT_CUR/PROJECTwm
47977 bytes_VBA_PROJECT_CUR/VBA/Sheet1
48977 bytes_VBA_PROJECT_CUR/VBA/Sheet2
49977 bytes_VBA_PROJECT_CUR/VBA/Sheet3
50985 bytes_VBA_PROJECT_CUR/VBA/ThisWorkbook
512644 bytes_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
52553 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 :
323
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
72cc534d7abf9c112f9402eff04a6cb9.eml
Verdict:
Malicious activity
Analysis date:
2023-11-10 02:06:44 UTC
Tags:
phishing phishing-pdf phishing-xls
Link:
https://app.any.run/tasks/58a4fee5-3672-4d8f-a1ea-e0a373236d6a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Other.Malware-gen.12790.22077.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Other.Malware-gen.19728.9505.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Heur.1282.16692.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Other.Malware-gen.25106.3990.UNOFFICIAL
Create hunting rule

Sanesecurity.Shelter.Malware.BadMacro.BadOleNatEquat.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.EQAndMisCasedOleNativeWasTheCaseThatTheyGaveMe.20200215.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Creating a window
Result
Verdict:
Malicious
File Type:
Legacy Excel File with Macro
Link:
https://app.docguard.net/b4ba7b64ad1e137d2fda6386c8bf6d8df85342385f1f4a69f42ed6980b240c5d/results/dashboard
Behaviour
BlacklistAPI detected
Document image
Image:
Download PNG
Document image
Verdict:
Malicious
Labled as:
CVE-2018-0802
Link:
https://www.hybrid-analysis.com/sample/b4ba7b64ad1e137d2fda6386c8bf6d8df85342385f1f4a69f42ed6980b240c5d
Label:
Benign
Suspicious Score:
3.1/10
Score Malicious:
32%
Score Benign:
68%
Link:
https://www.malware.ai/gui/files/?id=928220a7-1388-4287-9b8c-8e499230337f
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/b4ba7b64ad1e137d2fda6386c8bf6d8df85342385f1f4a69f42ed6980b240c5d
Details
Document With Few Pages
Document contains between one and three pages of content. Most malicious documents are sparse in page count.
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1340265
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
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)
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: 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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1340265 Sample: 57m#U00b3_LPG_SEMI_TRAILER_... Startdate: 10/11/2023 Architecture: WINDOWS Score: 100 41 Found malware configuration 2->41 43 Antivirus detection for URL or domain 2->43 45 Antivirus detection for dropped file 2->45 47 13 other signatures 2->47 7 EQNEDT32.EXE 12 2->7         started        12 EQNEDT32.EXE 10 2->12         started        14 AcroRd32.exe 33 2->14         started        16 EXCEL.EXE 58 66 2->16         started        process3 dnsIp4 35 103.253.17.249, 49162, 80 WIFIKU-AS-IDPTWifikuIndonesiaID unknown 7->35 31 C:\Users\user\AppData\Roaming\audiodgse.exe, PE32 7->31 dropped 33 C:\Users\user\AppData\...\audiodgs[1].exe, PE32 7->33 dropped 61 Office equation editor establishes network connection 7->61 63 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 7->63 18 audiodgse.exe 2 7->18         started        21 audiodgse.exe 12->21         started        23 RdrCEF.exe 2 14->23         started        file5 signatures6 process7 dnsIp8 49 Antivirus detection for dropped file 18->49 51 Multi AV Scanner detection for dropped file 18->51 53 Machine Learning detection for dropped file 18->53 26 RegSvcs.exe 2 18->26         started        55 Writes to foreign memory regions 21->55 57 Allocates memory in foreign processes 21->57 59 Injects a PE file into a foreign processes 21->59 29 RegSvcs.exe 21->29         started        37 192.168.2.22, 137, 138, 49162 unknown unknown 23->37 39 192.168.2.255, 137, 138 unknown unknown 23->39 signatures9 process10 signatures11 65 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 26->65 67 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 26->67 69 Tries to steal Mail credentials (via file / registry access) 26->69 71 Tries to harvest and steal browser information (history, passwords, etc) 29->71
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b4ba7b64ad1e137d2fda6386c8bf6d8df85342385f1f4a69f42ed6980b240c5d/
Threat name:
Document-Office.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2023-11-09 11:58:59 UTC
File Type:
Document
Extracted files:
111
AV detection:
13 of 38 (34.21%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ws5hwzfndyjx2l62modmrp3nrx4fgqryl4puu2puf3ljqczebroq._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Link:
https://tria.ge/reports/231110-g3r45aeb58/
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 use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
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
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Executes dropped EXE
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
AgentTesla
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b4ba7b64ad1e/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/b4ba7b64ad1e137d2fda6386c8bf6d8df85342385f1f4a69f42ed6980b240c5d

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:INDICATOR_OLE_EXPLOIT_CVE_2017_11882_1
Create hunting rule
Author:ditekSHen
Description:detects OLE documents potentially exploiting CVE-2017-11882
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_OLE_file_magic_number
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
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_no_import_table
Create hunting rule
Description:Detect pe file that no import table

File information

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

Malspam

AgentTesla

Excel file xls b4ba7b64ad1e137d2fda6386c8bf6d8df85342385f1f4a69f42ed6980b240c5d

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments