MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fe3bb9faf44f61621674a930d7db9e279d2aae9c097a930166c81ca33094fa88. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fe3bb9faf44f61621674a930d7db9e279d2aae9c097a930166c81ca33094fa88
SHA3-384 hash: f55db256fe52fc9e5366c56f559bc44a8bf283af66152957cc2adf408024b24aa5927c2558a5b8a01ef98edc7cd11bb3
SHA1 hash: 8639de1d731ac1c7612f201b9548b5c13ca19f58
MD5 hash: a8503fa1851440348585b01cb56e8165
humanhash: emma-foxtrot-indigo-sink
File name:RFQ-2301.xls
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'180'160 bytes
First seen:2023-11-08 12:29:26 UTC
Last seen:2023-11-09 13:04:17 UTC
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 24576:DuBSw6/uZyf3bV7w6/WZyH3bV9kMuS/J025rQP7q8Vj:e6/4y3bVc6/AO3bVaMuSZwz
TLSH T12245CF03A9408B83D41D83F46EE34ED91F1ABF04EA916EDF1129BF1B3E706621D5A52D
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 bytesMBD0015B191/CompObj
562 bytesMBD0015B191/Ole
620409 bytesMBD0015B191/CONTENTS
794 bytesMBD0015B192/CompObj
862 bytesMBD0015B192/Ole
912169 bytesMBD0015B192/CONTENTS
1094 bytesMBD0015B193/CompObj
1162 bytesMBD0015B193/Ole
127284 bytesMBD0015B193/CONTENTS
1394 bytesMBD0015B194/CompObj
1462 bytesMBD0015B194/Ole
1564830 bytesMBD0015B194/CONTENTS
1693 bytesMBD0015B195/CompObj
1764 bytesMBD0015B195/Ole
18124841 bytesMBD0015B195/CONTENTS
19114 bytesMBD0015B196/CompObj
20708 bytesMBD0015B196/DocumentSummaryInformation
2123248 bytesMBD0015B196/SummaryInformation
2297872 bytesMBD0015B196/Workbook
23414 bytesMBD0015B196/_VBA_PROJECT_CUR/PROJECT
2462 bytesMBD0015B196/_VBA_PROJECT_CUR/PROJECTwm
25977 bytesMBD0015B196/_VBA_PROJECT_CUR/VBA/Sheet1
26985 bytesMBD0015B196/_VBA_PROJECT_CUR/VBA/ThisWorkbook
272329 bytesMBD0015B196/_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
28517 bytesMBD0015B196/_VBA_PROJECT_CUR/VBA/dir
2994 bytesMBD0015B197/CompObj
3062 bytesMBD0015B197/Ole
3164830 bytesMBD0015B197/CONTENTS
3293 bytesMBD0015B198/CompObj
3364 bytesMBD0015B198/Ole
34124841 bytesMBD0015B198/CONTENTS
35114 bytesMBD0015B199/CompObj
36708 bytesMBD0015B199/DocumentSummaryInformation
3723248 bytesMBD0015B199/SummaryInformation
3897872 bytesMBD0015B199/Workbook
390 bytesMBD0015B199/_VBA_PROJECT_CUR/VBA/Sheet1
400 bytesMBD0015B199/_VBA_PROJECT_CUR/VBA/ThisWorkbook
410 bytesMBD0015B199/_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
4220 bytesMBD0015B19A/Ole
431776 bytesMBD0015B19A/ole10nAtIVe
44475986 bytesWorkbook
45527 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 :
12
# of downloads :
363
Origin country :
NL NL
Vendor Threat Intelligence
Verdict:
Legit
File type:
application/vnd.ms-excel
Has a screenshot:
False
Contains macros:
False
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
Sending a custom TCP request
Creating a window
Searching for synchronization primitives
Launching a process
Creating a file in the %AppData% directory
Сreating synchronization primitives
Sending an HTTP GET request
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
Legacy Excel File with Macro
Link:
https://app.docguard.net/fe3bb9faf44f61621674a930d7db9e279d2aae9c097a930166c81ca33094fa88/results/dashboard
Behaviour
BlacklistAPI detected
Document image
Image:
Download PNG
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
92%
Tags:
embedequation exploit exploit macros shellcode
Link:
https://www.filescan.io/uploads/654b7f613dd412119bf1b6f2/reports/c6118b7d-f933-45b9-bffb-336297a78866/overview
Verdict:
Malicious
Labled as:
CVE-2018-0802
Link:
https://www.hybrid-analysis.com/sample/fe3bb9faf44f61621674a930d7db9e279d2aae9c097a930166c81ca33094fa88
Label:
Benign
Suspicious Score:
2.3/10
Score Malicious:
24%
Score Benign:
76%
Link:
https://www.malware.ai/gui/files/?id=54f6a006-34fb-4187-900a-df0dda93f71b
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/fe3bb9faf44f61621674a930d7db9e279d2aae9c097a930166c81ca33094fa88
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/1339010
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
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)
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)
Yara detected AgentTesla
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1339010 Sample: RFQ-2301.xls Startdate: 08/11/2023 Architecture: WINDOWS Score: 100 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 Antivirus / Scanner detection for submitted sample 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 27 2->14         started        16 EXCEL.EXE 58 65 2->16         started        process3 dnsIp4 35 172.245.208.22, 49162, 80 AS-COLOCROSSINGUS United States 7->35 31 C:\Users\user\AppData\Roaming\IGCC.exe, PE32 7->31 dropped 33 C:\Users\user\AppData\Local\...\IGCC[1].exe, PE32 7->33 dropped 57 Office equation editor establishes network connection 7->57 59 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 7->59 18 IGCC.exe 2 7->18         started        21 IGCC.exe 2 12->21         started        23 RdrCEF.exe 2 14->23         started        file5 signatures6 process7 signatures8 49 Multi AV Scanner detection for dropped file 18->49 51 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 18->51 53 Machine Learning detection for dropped file 18->53 25 IGCC.exe 12 2 18->25         started        55 Injects a PE file into a foreign processes 21->55 28 IGCC.exe 21->28         started        process9 dnsIp10 37 api4.ipify.org 173.231.16.77, 443, 49164 WEBNXUS United States 28->37 39 api.ipify.org 28->39 61 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 28->61 63 Tries to steal Mail credentials (via file / registry access) 28->63 65 Tries to harvest and steal browser information (history, passwords, etc) 28->65 signatures11
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/fe3bb9faf44f61621674a930d7db9e279d2aae9c097a930166c81ca33094fa88/
Threat name:
Document-Office.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2023-11-08 08:56:31 UTC
File Type:
Document
Extracted files:
111
AV detection:
14 of 38 (36.84%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7y53t6xuj5qweftuveynpw46e6osvlu4bf5jgalgzaokgmeu7kea._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/231108-pphbrsbb3v/
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
Suspicious use of SetThreadContext
Looks up external IP address via web service
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Executes dropped EXE
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
AgentTesla
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/fe3bb9faf44f/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/fe3bb9faf44f61621674a930d7db9e279d2aae9c097a930166c81ca33094fa88

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/

File information

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

Malspam

AgentTesla

Excel file xls fe3bb9faf44f61621674a930d7db9e279d2aae9c097a930166c81ca33094fa88

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments