MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 f8d08e4beea235c3889ea1a6b39172783773be579d82dd3b4f3931908925d48b. 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
| SHA256 hash: | f8d08e4beea235c3889ea1a6b39172783773be579d82dd3b4f3931908925d48b |
|---|---|
| SHA3-384 hash: | a21a513aa8e200d2ea55233b609b83944e57935e37a2ee2557f04408a899341cc00148893efb1cc4ba13eee0ae2b6c91 |
| SHA1 hash: | f4884afa7583096af785718447d2ef240fbe0d6b |
| MD5 hash: | a3fdaa72eed95c9df31ee087177f76c5 |
| humanhash: | grey-echo-glucose-ceiling |
| File name: | a3fdaa72eed95c9df31ee087177f76c5 |
| Download: | download sample |
| Signature | AgentTesla |
| File size: | 87'018 bytes |
| First seen: | 2024-05-01 07:22:16 UTC |
| Last seen: | 2024-05-01 08:30:34 UTC |
| File type: |  rtf |
| MIME type: | text/rtf |
| ssdeep | 1536:qVbUYtvQu+x2iZpsz492hl0lv05EXCF59rRykrKRpWXGFfw7sZ6VvWanGdHqHxcV:v2/+xxj92h+M2859rR1+RkGFfw7sZ6Vk |
| TLSH | T1F183CA6EE70F0965EF55A67B034B4E4909FCB33DB28540A139AC877437ADC2E466287C |
| Reporter |  zbetcheckin |
| Tags: | AgentTesla CVE-2017-11882 rtf |
Intelligence
File Origin
# of uploads :
2
# of downloads :
122
Origin country :
FRVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Re_ Envío OC - PO 4500628950 Confirmar recepción.eml
Verdict:
Malicious activity
Analysis date:
2024-04-30 19:35:41 UTC
Tags:
exploit cve-2017-11882 stegocampaign loader
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Legit
File type:
application/rtf
Has a screenshot:
False
Contains macros:
False
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Searching for synchronization primitives
Launching a process
Using the Windows Management Instrumentation requests
Creating a window
Sending an HTTP GET request
Creating a file in the %AppData% directory
Сreating synchronization primitives
Creating a file
Sending a UDP request
Launching a service
DNS request
Connection attempt
Sending a custom TCP request
Creating a process with a hidden window
Possible injection to a system process
Connection attempt by exploiting the app vulnerability
Creating a process from a recently created file
Launching a file downloaded from the Internet
Result
Verdict:
Malicious
File Type:
RTF File
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
embedequation exploit shellcode
Verdict:
Malicious
Labled as:
CVE-2017-11882
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
spre.troj.spyw.expl.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Bypasses PowerShell execution policy
Check if machine is in data center or colocation facility
Connects to a pastebin service (likely for C&C)
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Document exploit detected (process start blacklist hit)
Found malware configuration
Injects a PE file into a foreign processes
Installs new ROOT certificates
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted 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: Base64 Encoded PowerShell Command Detected
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: Equation Editor Network Connection
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: Potential PowerShell Obfuscation Via Reversed Commands
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Powershell download and load assembly
Sigma detected: Powershell download payload from hardcoded c2 list
Sigma detected: Script Initiated Connection to Non-Local Network
Sigma detected: Suspicious Microsoft Office Child Process
Sigma detected: WScript or CScript Dropper
Snort IDS alert for network traffic
Suspicious execution chain found
Suspicious powershell command line found
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Very long command line found
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected AgentTesla
Yara detected Generic Downloader
Yara detected Powershell download and execute
Yara detected VBS Downloader Generic
Behaviour
Behavior Graph:
Score:
97%
Verdict:
Malware
File Type:
SCRIPT
Detection:
cve-2017-11882-shellcode
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Status:
Malicious
First seen:
2024-04-30 16:40:03 UTC
File Type:
Document
Extracted files:
4
AV detection:
16 of 24 (66.67%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
agenttesla
Score:
10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
Modifies registry class
Modifies system certificate store
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of SetThreadContext
Enumerates connected drives
Looks up external IP address via web service
Blocklisted process makes network request
AgentTesla
Malware family:
AgentTesla
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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_RTF_MalVer_Objects |
|---|---|
| Author: | ditekSHen |
| Description: | Detects RTF documents with non-standard version and embeding one of the object mostly observed in exploit documents. |
| Rule name: | SUSP_INDICATOR_RTF_MalVer_Objects |
|---|---|
| Author: | ditekSHen |
| Description: | Detects RTF documents with non-standard version and embedding one of the object mostly observed in exploit (e.g. CVE-2017-11882) documents. |
| Reference: | https://github.com/ditekshen/detection |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
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