MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 716f031d6df4bc08cc13347decbefa0fcab4c5fa52a3cb27678af2c372b8b403. 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 File information Comments

SHA256 hash: 716f031d6df4bc08cc13347decbefa0fcab4c5fa52a3cb27678af2c372b8b403
SHA3-384 hash: 6646397327112fcf762ea6561af9d7a3588e3ef52892ab4a65d326cb1b65823ea870977e47ce9c8b221f07b0558e0cc0
SHA1 hash: 8777eb91479c34a2efe478014aa41f3b248f7100
MD5 hash: 8f4189e72ae5c5d4073d14777fc51c29
humanhash: crazy-delaware-helium-october
File name:Quotation.xlsx
Download: download sample
Signature AgentTesla
File size:1'805'028 bytes
First seen:2024-02-14 13:06:03 UTC
Last seen:2024-02-15 07:10:36 UTC
File type:Excel file xlsx
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 49152:hKf5yz0nkFW5yOuecE1wlleIDBhlbcuREU:2yzt/Oue/BID/B
TLSH T16F85333388C1186BEA659E379D4A08639D2F6F8FD4C11B994D24F324DD62D6F660F0B4
TrID 60.1% (.XLSX) Excel Microsoft Office Open XML Format document (34000/1/7)
30.9% (.ZIP) Open Packaging Conventions container (17500/1/4)
7.0% (.ZIP) ZIP compressed archive (4000/1)
1.7% (.PG/BIN) PrintFox/Pagefox bitmap (640x800) (1000/1)
Reporter abuse_ch
Tags:AgentTesla CVE-2017-11882 xlsx

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 dump

MalwareBazaar was able to identify 3 sections in this file using oledump:

Section IDSection sizeSection name
A12101183 bytesole10NAtiVe
A20 bytesDenjha27UhbzQQyRafFmLPMkkSc

Intelligence


File Origin
# of uploads :
2
# of downloads :
1'683
Origin country :
NL NL
Vendor Threat Intelligence
Verdict:
Legit
File type:
text/xml
Has a screenshot:
False
Contains macros:
False
Result
Verdict:
Malware
Maliciousness:

Behaviour
Changing an executable file
Using the Windows Management Instrumentation requests
Creating a window
Searching for synchronization primitives
Launching a process
DNS request
Connecting to a non-recommended domain
Sending an HTTP GET request
Creating a file in the %AppData% directory
Сreating synchronization primitives
Creating a process with a hidden window
Connection attempt by exploiting the app vulnerability
Launching a file downloaded from the Internet
Infecting executable files
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
OOXML Excel File with Embedding Objects
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
embedequation exploit packed shellcode
Label:
Malicious
Suspicious Score:
9.9/10
Score Malicious:
99%
Score Benign:
0%
Result
Threat name:
AgentTesla, PureLog Stealer
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
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
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Contains functionality to log keystrokes (.Net Source)
Document exploit detected (process start blacklist hit)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Installs new ROOT certificates
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
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)
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: 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 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
Yara detected AgentTesla
Yara detected Generic Downloader
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1392152 Sample: Quotation.xlsx Startdate: 14/02/2024 Architecture: WINDOWS Score: 100 49 Snort IDS alert for network traffic 2->49 51 Multi AV Scanner detection for domain / URL 2->51 53 Found malware configuration 2->53 55 25 other signatures 2->55 8 EXCEL.EXE 53 12 2->8         started        10 taskeng.exe 1 2->10         started        process3 process4 12 EQNEDT32.EXE 11 8->12         started        17 FqUkYhWoGr.exe 4 10->17         started        dnsIp5 45 aineommall.com 204.11.59.228, 49162, 80 PUBLIC-DOMAIN-REGISTRYUS United States 12->45 41 C:\Users\user\AppData\Roaming\word.exe, PE32 12->41 dropped 43 C:\Users\user\AppData\Local\...\lt[1].exe, PE32 12->43 dropped 73 Office equation editor establishes network connection 12->73 75 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 12->75 19 word.exe 1 10 12->19         started        77 Antivirus detection for dropped file 17->77 79 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 17->79 81 Machine Learning detection for dropped file 17->81 83 2 other signatures 17->83 23 FqUkYhWoGr.exe 17->23         started        25 powershell.exe 17->25         started        27 schtasks.exe 17->27         started        file6 signatures7 process8 file9 37 C:\Users\user\AppData\...\FqUkYhWoGr.exe, PE32 19->37 dropped 39 C:\Users\user\AppData\Local\...\tmpF5D4.tmp, XML 19->39 dropped 57 Antivirus detection for dropped file 19->57 59 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 19->59 61 Machine Learning detection for dropped file 19->61 71 3 other signatures 19->71 29 word.exe 12 2 19->29         started        33 powershell.exe 4 19->33         started        35 schtasks.exe 19->35         started        63 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 23->63 65 Tries to steal Mail credentials (via file / registry access) 23->65 67 Tries to harvest and steal browser information (history, passwords, etc) 23->67 69 Installs a global keyboard hook 23->69 signatures10 process11 dnsIp12 47 api.ipify.org 104.26.12.205, 443, 49164 CLOUDFLARENETUS United States 29->47 85 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 29->85 87 Installs new ROOT certificates 29->87 89 Tries to steal Mail credentials (via file / registry access) 29->89 91 Installs a global keyboard hook 29->91 signatures13
Threat name:
Document-Office.Exploit.CVE-2017-11882
Status:
Malicious
First seen:
2024-02-14 10:25:57 UTC
File Type:
Document
Extracted files:
16
AV detection:
17 of 23 (73.91%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
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
Enumerates physical storage devices
Drops file in System32 directory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Loads dropped DLL
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
Blocklisted process makes network request
Downloads MZ/PE file
AgentTesla
Malware family:
AgentTesla
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Comments