MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ac07988ba9649741c59d16698f8c33295b3ff7943eeccbafe6f988e3e3c10908. 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: 13


Intelligence 13 IOCs YARA 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ac07988ba9649741c59d16698f8c33295b3ff7943eeccbafe6f988e3e3c10908
SHA3-384 hash: 36fe0ca5f1c18aa23c4c37751f48d8a121b603377ecfc01f7626ed33077081fba1a989a32cbbd47ecbd68bd56ac61a25
SHA1 hash: 605c01289d5b683a3d5b5eb17ebef72bfc388f91
MD5 hash: 060f999d180fb2c37059815ebd76e38e
humanhash: oklahoma-emma-pluto-grey
File name:orden de compra.xla
Download: download sample
Signature AgentTesla
Create hunting rule
File size:400'896 bytes
First seen:2023-12-07 16:43:20 UTC
Last seen:Never
File type:Excel file xlsx
MIME type:application/vnd.ms-excel
ssdeep 6144:Vn1m9kdbXgb8y3ZetJs0hdMJUXTdU5u/LbquQFBql4yUhNttSMS6EgU0rh:VOesblwtqSdLTdoaNQO6hQX+h
TLSH T16C841219B645CA1BCD578430CCCA74DFC339ECA94F43A38FB2C6B74E4531AE58612A99
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 xla xlsx

Intelligence

File Origin
# of uploads :
1
# of downloads :
526
Origin country :
NL NL
Vendor Threat Intelligence
Verdict:
Legit
File type:
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
Has a screenshot:
False
Contains macros:
False
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/463301/
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
Sending a custom TCP request
Creating a window
Searching for synchronization primitives
Launching a process
Сreating synchronization primitives
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/ac07988ba9649741c59d16698f8c33295b3ff7943eeccbafe6f988e3e3c10908/results/dashboard
Payload URLs
URL
File name
http://140.228.29.227/microsoftunderstandwhyneedtodeleteentirehistorycachecookieverything.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 masquerade shellcode sload sload
Link:
https://www.filescan.io/uploads/6571f6543636548f3740e10c/reports/bf4d1b16-a249-4fb8-8f4e-f3ef87e76528/overview
Verdict:
Malicious
Labled as:
CVE-2017-0199
Link:
https://www.hybrid-analysis.com/sample/ac07988ba9649741c59d16698f8c33295b3ff7943eeccbafe6f988e3e3c10908
Label:
Benign
Suspicious Score:
3.0/10
Score Malicious:
31%
Score Benign:
69%
Link:
https://www.malware.ai/gui/files/?id=38cdc75f-5551-4af2-b66a-b0e81c65f0d5
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/ac07988ba9649741c59d16698f8c33295b3ff7943eeccbafe6f988e3e3c10908
Result
Threat name:
AgentTesla, NSISDropper
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1355623
Signature
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
Document embeds suspicious OLE2 link
Excel sheet contains many unusual embedded objects
Found malware configuration
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Microsoft Office drops suspicious files
Microsoft Office launches external ms-search protocol handler (WebDAV)
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 NSISDropper
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1355623 Sample: orden_de_compra.xla.xlsx Startdate: 07/12/2023 Architecture: WINDOWS Score: 100 47 Snort IDS alert for network traffic 2->47 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 12 other signatures 2->53 8 EQNEDT32.EXE 12 2->8         started        12 WINWORD.EXE 345 51 2->12         started        14 EXCEL.EXE 52 53 2->14         started        17 AcroRd32.exe 21 2->17         started        process3 dnsIp4 31 C:\Users\user\AppData\Roaming\wlanext.exe, PE32 8->31 dropped 33 C:\Users\user\...\myexploitwednesdayyy[1].exe, PE32 8->33 dropped 65 Office equation editor establishes network connection 8->65 67 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 8->67 19 wlanext.exe 17 8->19         started        35 microsoftunderstan...ieverything.Doc.url, MS 12->35 dropped 37 C:\Users\user\AppData\...\140.228.29.227.url, MS 12->37 dropped 39 ~WRF{AE39C81A-2D01...9-0CB12388EF91}.tmp, Composite 12->39 dropped 41 C:\Users\user\AppData\Local\...\9476A0AA.doc, ISO-8859 12->41 dropped 69 Microsoft Office launches external ms-search protocol handler (WebDAV) 12->69 71 Office viewer loads remote template 12->71 73 Microsoft Office drops suspicious files 12->73 45 140.228.29.227, 49164, 49165, 49166 OARNET-ASUS United States 14->45 43 microsoftunderstan...kieverything[1].doc, ISO-8859 14->43 dropped file5 signatures6 process7 file8 29 C:\Users\user\AppData\Local\...\iqqsmqf.exe, PE32 19->29 dropped 55 Machine Learning detection for dropped file 19->55 23 iqqsmqf.exe 19->23         started        signatures9 process10 signatures11 57 Detected unpacking (creates a PE file in dynamic memory) 23->57 59 Detected unpacking (overwrites its own PE header) 23->59 61 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 23->61 63 2 other signatures 23->63 26 iqqsmqf.exe 2 23->26         started        process12 signatures13 75 Tries to steal Mail credentials (via file / registry access) 26->75 77 Tries to harvest and steal browser information (history, passwords, etc) 26->77
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ac07988ba9649741c59d16698f8c33295b3ff7943eeccbafe6f988e3e3c10908/
Threat name:
Document-Excel.Exploit.CVE-2017-0199
Create hunting rule
Status:
Malicious
First seen:
2023-12-07 16:44:05 UTC
File Type:
Document
Extracted files:
91
AV detection:
11 of 23 (47.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vqdzrc5jmsludrm5czuy7dbtffnt754uh3wmxl7g7geohy6bbeea._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/231207-va3baadf63/
Behaviour
Launches Equation Editor
Modifies Internet Explorer settings
Looks up external IP address via web service
Downloads MZ/PE file
AgentTesla
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ac07988ba964/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/ac07988ba9649741c59d16698f8c33295b3ff7943eeccbafe6f988e3e3c10908

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 xlsx ac07988ba9649741c59d16698f8c33295b3ff7943eeccbafe6f988e3e3c10908

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/463301/

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