MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 24c228df7c2e025c2db64ebdc6d5824425f3179f228145866bd55700cf7e05ac. 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


Maldoc score: 4


Intelligence 12 IOCs YARA 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 24c228df7c2e025c2db64ebdc6d5824425f3179f228145866bd55700cf7e05ac
SHA3-384 hash: 612de7d37b5a892dc9b8f06896ba4835b458f6336929f34b41841932fa99aab7ccfb609029c82d7f00e04bcd6ff56a5e
SHA1 hash: ee6222b823a92cae26f04351509a1254556508c0
MD5 hash: 1cd369286752c3d016b8ce3d59f43e66
humanhash: butter-rugby-emma-washington
File name:BL draft copy AE1169-0106202.xls
Download: download sample
Signature AgentTesla
Create hunting rule
File size:401'408 bytes
First seen:2023-12-05 14:50:36 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 6144:un1m9kdb/Gt8b++UXaBkMOQGeg20HYacK4vPLJJhZrRIh1EBb:uOeLlS5aave4HtcK8A/EB
TLSH T1C984022AF241DA2FCC62A870CDCE74D6C269ECD99F58A34FB2C1739E90316D68271D51
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 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 bytesMBD000288D6/CompObj
5200807 bytesMBD000288D6/Package
6950 bytesMBD000288D7/Ole
7182071 bytesWorkbook
8529 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 :
319
Origin country :
NL NL
Vendor Threat Intelligence
Verdict:
Legit
File type:
application/vnd.ms-excel
Has a screenshot:
False
Contains macros:
False
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/462649/
Detection(s):
TwinWave.EvilDoc.FormbookPicturesOfU.XL.220411.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Trojan.GenericKD.64927369.3758.6623.UNOFFICIAL
Create hunting rule

Sanesecurity.Badmacro.Xls.BadUsr1.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Trojan.VBA.Agent-16.UNOFFICIAL
Create hunting rule

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

Sanesecurity.Badmacro.Xls.badForm1.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.FormbookPicturesOfU.MSOLE2.220411.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Searching for synchronization primitives
Launching a process
Сreating synchronization primitives
Creating a file
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Launching a process by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
Legacy Excel File with Macro
Link:
https://app.docguard.net/24c228df7c2e025c2db64ebdc6d5824425f3179f228145866bd55700cf7e05ac/results/dashboard
Payload URLs
URL
File name
http://198.12.81.254/wef/microsofdecidedtodeleteentirehistorycookiecachefrommypc.Doc
Embedded Ole
Behaviour
SuspiciousRTF detected
Document image
Image:
Download PNG
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
embedequation exploit macros shellcode sload
Link:
https://www.filescan.io/uploads/656f38dfeba1080314856b17/reports/312278cb-4938-4913-af8c-6ce739b010e9/overview
Verdict:
Malicious
Labled as:
CVE-2017-0199
Link:
https://www.hybrid-analysis.com/sample/24c228df7c2e025c2db64ebdc6d5824425f3179f228145866bd55700cf7e05ac
Label:
Malicious
Suspicious Score:
6.0/10
Score Malicious:
61%
Score Benign:
39%
Link:
https://www.malware.ai/gui/files/?id=71185bbe-0141-404a-9184-3ad504ecba5c
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/24c228df7c2e025c2db64ebdc6d5824425f3179f228145866bd55700cf7e05ac
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1353999
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
Document embeds suspicious OLE2 link
Excel sheet contains many unusual embedded objects
Found malware configuration
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 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)
Shellcode detected
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1353999 Sample: BL_draft_copy_AE1169-0106202.xls Startdate: 05/12/2023 Architecture: WINDOWS Score: 100 40 Snort IDS alert for network traffic 2->40 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 16 other signatures 2->46 7 EQNEDT32.EXE 12 2->7         started        11 WINWORD.EXE 346 47 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 60 Office equation editor establishes network connection 7->60 62 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 7->62 18 wlanext.exe 1 7 7->18         started        28 C:\Users\user\...\wef on 198.12.81.254.url, MS 11->28 dropped 30 microsofdecidedtod...chefrommypc.Doc.url, MS 11->30 dropped 32 ~WRF{38A6C727-9C5A...D-3325DBA60126}.tmp, Composite 11->32 dropped 34 C:\Users\user\AppData\Local\...\17D5D34D.doc, ISO-8859 11->34 dropped 64 Microsoft Office launches external ms-search protocol handler (WebDAV) 11->64 66 Office viewer loads remote template 11->66 68 Microsoft Office drops suspicious files 11->68 38 198.12.81.254, 49162, 49163, 49164 AS-COLOCROSSINGUS United States 13->38 36 microsofdecidedtod...achefrommypc[1].doc, ISO-8859 13->36 dropped 70 Injects files into Windows application 13->70 file5 signatures6 process7 signatures8 48 Multi AV Scanner detection for dropped file 18->48 50 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 18->50 52 Machine Learning detection for dropped file 18->52 54 Injects a PE file into a foreign processes 18->54 21 wlanext.exe 2 18->21         started        process9 signatures10 56 Tries to steal Mail credentials (via file / registry access) 21->56 58 Tries to harvest and steal browser information (history, passwords, etc) 21->58
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/24c228df7c2e025c2db64ebdc6d5824425f3179f228145866bd55700cf7e05ac/
Threat name:
Win32.Trojan.Znyonm
Create hunting rule
Status:
Malicious
First seen:
2023-12-05 09:34:07 UTC
File Type:
Document
Extracted files:
91
AV detection:
10 of 23 (43.48%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=etbcrx34fybfylnwj264nvmciqs7gf47ekaulbtl2vlqbt36awwa._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/231205-r75wwsbf6v/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
Uses Volume Shadow Copy service COM API
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/24c228df7c2e/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/24c228df7c2e025c2db64ebdc6d5824425f3179f228145866bd55700cf7e05ac

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
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.

Malspam

AgentTesla

Excel file xls 24c228df7c2e025c2db64ebdc6d5824425f3179f228145866bd55700cf7e05ac

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/462649/

Comments