MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8402999484537d7b6a3ab9f2d1dc95aa667e35e13aad7b1ff4cf9f8622144848. 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: 8402999484537d7b6a3ab9f2d1dc95aa667e35e13aad7b1ff4cf9f8622144848
SHA3-384 hash: adbf2c09b8dbb3c3ac1d3b7ad2e4709036c2fdd2919b733a9b4525bd295deb6b8ccbcf3374f7639bb3c6042120ad6839
SHA1 hash: 08ea15340a2f9fb17bb63249818f96854197ae8c
MD5 hash: 9cabb136d3bfdc370eb1588551c14458
humanhash: harry-cold-enemy-berlin
File name:ET2431000075 & ET2431000076.xls
Download: download sample
Signature AgentTesla
Create hunting rule
File size:245'248 bytes
First seen:2024-05-01 14:24:53 UTC
Last seen:2024-05-01 15:22:53 UTC
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 6144:fd4UcLe0JOqPQZR8MDdATCR3tSv0W8+joKfpFlfQHus:yUP/qPQZR8MxAm/S8W8m/ff
TLSH T16A34013678B49042C96488B878DD88D3FB797D916F41B04F32A0739D6BB74A0DD226DE
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 bytesMBD001BA13E/CompObj
5147803 bytesMBD001BA13E/Package
6438 bytesMBD001BA13F/Ole
781025 bytesWorkbook
8525 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 :
2
# of downloads :
357
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
8402999484537d7b6a3ab9f2d1dc95aa667e35e13aad7b1ff4cf9f8622144848.xls
Verdict:
Suspicious activity
Analysis date:
2024-05-01 14:26:32 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/e58f5e78-24ae-4393-adaa-a8658eefac6c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Legit
File type:
application/vnd.ms-excel
Has a screenshot:
False
Contains macros:
False
Detection(s):
TwinWave.EvilDoc.93TilInfinity.20240412.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Using the Windows Management Instrumentation requests
Creating a window
DNS request
Sending an HTTP GET request
Searching for synchronization primitives
Launching a process
Сreating synchronization primitives
Creating a file
Connection attempt
Sending a custom TCP request
Creating a file in the %AppData% directory
Creating a process with a hidden window
Connection attempt by exploiting the app vulnerability
Launching a file downloaded from the Internet
Launching a process by exploiting the app vulnerability
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
Legacy Excel File with Macro
Link:
https://app.docguard.net/8402999484537d7b6a3ab9f2d1dc95aa667e35e13aad7b1ff4cf9f8622144848/results/dashboard
Payload URLs
URL
File name
http://pop.tg/cdfW5
Embedded Ole
Behaviour
BlacklistAPI detected
Document image
Image:
Download PNG
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
embedequation exploit language-tr macros shellcode
Link:
https://www.filescan.io/uploads/663250c59cdc03b57ab8dfa0/reports/dd9b4806-efea-4c60-89b6-145e764283b9/overview
Verdict:
Malicious
Labled as:
CVE-2017-0199
Link:
https://www.hybrid-analysis.com/sample/8402999484537d7b6a3ab9f2d1dc95aa667e35e13aad7b1ff4cf9f8622144848
Gathering data
Result
Threat name:
AgentTesla, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1434679
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
Document exploit detected (process start blacklist hit)
Excel sheet contains many unusual embedded objects
Found malware configuration
Injects a PE file into a foreign processes
Installs new ROOT certificates
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 drops RTF 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: Equation Editor Network Connection
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Sigma detected: Suspicious Binary In User Directory Spawned From Office Application
Sigma detected: Suspicious Microsoft Office Child Process
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1434679 Sample: ET2431000075 & ET2431000076.xls Startdate: 01/05/2024 Architecture: WINDOWS Score: 100 74 pop.tg 2->74 108 Snort IDS alert for network traffic 2->108 110 Multi AV Scanner detection for domain / URL 2->110 112 Found malware configuration 2->112 114 22 other signatures 2->114 8 EXCEL.EXE 57 39 2->8         started        12 taskeng.exe 2->12         started        14 chrome.exe 2->14         started        16 2 other processes 2->16 signatures3 process4 dnsIp5 86 pop.tg 104.21.15.201, 49163, 49165, 49167 CLOUDFLARENETUS United States 8->86 88 192.3.239.4, 49164, 49168, 80 AS-COLOCROSSINGUS United States 8->88 66 creatednewthingsto...kissedmelove[1].doc, Rich 8->66 dropped 18 hkc.exe 1 10 8->18         started        22 WINWORD.EXE 337 39 8->22         started        25 TDUOdzDXjTezF.exe 12->25         started        90 239.255.255.250 unknown Reserved 14->90 27 chrome.exe 14->27         started        29 chrome.exe 16->29         started        31 chrome.exe 16->31         started        file6 process7 dnsIp8 54 C:\Users\user\AppData\...\TDUOdzDXjTezF.exe, PE32 18->54 dropped 56 C:\Users\user\AppData\Local\...\tmpB414.tmp, XML 18->56 dropped 116 Multi AV Scanner detection for dropped file 18->116 118 Machine Learning detection for dropped file 18->118 120 Uses schtasks.exe or at.exe to add and modify task schedules 18->120 122 Injects a PE file into a foreign processes 18->122 33 RegSvcs.exe 18->33         started        37 powershell.exe 4 18->37         started        39 RegSvcs.exe 18->39         started        50 2 other processes 18->50 76 pop.tg 22->76 78 172.67.206.230, 49166, 80 CLOUDFLARENETUS United States 22->78 58 C:\Users\user\AppData\Roaming\...\pop.tg.url, MS 22->58 dropped 60 C:\Users\user\AppData\Roaming\...\cdfW5.url, MS 22->60 dropped 62 ~WRF{A76CCD8A-BF00...2-DD8C9C66CCE9}.tmp, Composite 22->62 dropped 64 C:\Users\user\AppData\Local\...\42FBEA82.doc, Rich 22->64 dropped 124 Microsoft Office launches external ms-search protocol handler (WebDAV) 22->124 126 Office viewer loads remote template 22->126 128 Microsoft Office drops suspicious files 22->128 41 EQNEDT32.EXE 12 22->41         started        130 Writes to foreign memory regions 25->130 132 Allocates memory in foreign processes 25->132 134 Adds a directory exclusion to Windows Defender 25->134 44 RegSvcs.exe 25->44         started        46 powershell.exe 25->46         started        48 powershell.exe 25->48         started        52 2 other processes 25->52 80 plus.l.google.com 142.251.35.174, 443, 49184 GOOGLEUS United States 27->80 82 www.google.com 142.251.41.4, 443, 49170, 49174 GOOGLEUS United States 27->82 84 apis.google.com 27->84 file9 signatures10 process11 dnsIp12 72 api.ipify.org 172.67.74.152, 443, 49169 CLOUDFLARENETUS United States 33->72 92 Installs new ROOT certificates 37->92 94 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 39->94 68 C:\Users\user\AppData\Roaming\hkc.exe, PE32 41->68 dropped 70 C:\Users\user\AppData\Local\...\see[1].exe, PE32 41->70 dropped 96 Office equation editor establishes network connection 41->96 98 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 41->98 100 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 44->100 102 Tries to steal Mail credentials (via file / registry access) 44->102 104 Tries to harvest and steal ftp login credentials 44->104 106 Tries to harvest and steal browser information (history, passwords, etc) 44->106 file13 signatures14
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8402999484537d7b6a3ab9f2d1dc95aa667e35e13aad7b1ff4cf9f8622144848/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qqbjtfeekn6xw2r2xhzndxevvjth4npbhkwxwh7uz6pymiqujbea._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240501-rraqtaba37/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
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
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
Drops file in System32 directory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Abuses OpenXML format to download file from external location
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/840299948453/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/8402999484537d7b6a3ab9f2d1dc95aa667e35e13aad7b1ff4cf9f8622144848

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.

Comments