MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 675b7ea4b230ad5e2fa488ffa4c59073171e808907cc9c5c5c230184a24b0864. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 675b7ea4b230ad5e2fa488ffa4c59073171e808907cc9c5c5c230184a24b0864
SHA3-384 hash: 1d982b28ac61c2256be9dd00294889ea5e690a2ba330be08294cb5300a5283aa65e59c446178fb428d7c64ddb3ccea7c
SHA1 hash: 3b3e9b7f8a1d9bc8c75435882453daf064865c3e
MD5 hash: 569287ed1345f1f1d671aa2791ce9694
humanhash: nebraska-low-asparagus-magazine
File name:03224.doc
Download: download sample
Signature AgentTesla
Create hunting rule
File size:136'532 bytes
First seen:2024-04-09 12:42:08 UTC
Last seen:2024-04-10 06:23:03 UTC
File type:Word file doc
MIME type:text/rtf
ssdeep 768:bmwAbZSibMX9gRWjtwAbZSibMX9gRWjtwAbZSibMX9gRWjQk2C4Hlq0n9Yib88DH:qwAlRkwAlRkwAlRpk2CwGib885LicCg
TLSH T15ED3CF2DD34B0259CF620336AB171E5542BDBA7EF38552B1306C537933EAC39A1252BE
Reporter lowmal3
Tags:AgentTesla CVE-2017-11882 doc LILKOOLL14

Intelligence

File Origin
# of uploads :
4
# of downloads :
382
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
675b7ea4b230ad5e2fa488ffa4c59073171e808907cc9c5c5c230184a24b0864.doc
Verdict:
Suspicious activity
Analysis date:
2024-04-09 12:44:59 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/55fc3b87-2a07-44fd-951f-f54a096ecc63

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Sending an HTTP GET request
Reading critical registry keys
Connection attempt to an infection source
Searching for the window
Launching a process
Using the Windows Management Instrumentation requests
Changing an executable file
Creating a window
Сreating synchronization primitives
Creating a file
DNS request
Query of malicious DNS domain
Launching a file downloaded from the Internet
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Sending a TCP request to an infection source
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
Fake RTF File
Link:
https://app.docguard.net/675b7ea4b230ad5e2fa488ffa4c59073171e808907cc9c5c5c230184a24b0864/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/661537d9acb99fc8ffbc9809/reports/72349493-ec1a-4960-bf29-33aa2dac6b55/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/675b7ea4b230ad5e2fa488ffa4c59073171e808907cc9c5c5c230184a24b0864
Label:
Malicious
Suspicious Score:
10/10
Score Malicious:
1%
Score Benign:
0%
Link:
https://www.malware.ai/gui/files/?id=5ea38683-be87-42b2-a849-57cb29c85d66
Result
Verdict:
MALICIOUS
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1422938
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Document exploit detected (process start blacklist hit)
Drops PE files with a suspicious file extension
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)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
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)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Equation Editor Network Connection
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Suspicious Microsoft Office Child Process
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 harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1422938 Sample: 03224.doc Startdate: 09/04/2024 Architecture: WINDOWS Score: 100 44 Multi AV Scanner detection for domain / URL 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 17 other signatures 2->50 8 WINWORD.EXE 336 14 2->8         started        process3 process4 10 EQNEDT32.EXE 11 8->10         started        15 EQNEDT32.EXE 8->15         started        dnsIp5 34 dukeenergyltd.top 172.67.134.136, 443, 49161 CLOUDFLARENETUS United States 10->34 28 C:\Users\user\AppData\...\smtpndo66381.scr, PE32 10->28 dropped 30 C:\Users\user\AppData\Local\...\tmpszx[1].scr, PE32 10->30 dropped 60 Installs new ROOT certificates 10->60 62 Office equation editor establishes network connection 10->62 64 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 10->64 17 smtpndo66381.scr 1 8 10->17         started        file6 signatures7 process8 signatures9 36 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 17->36 38 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 17->38 40 Machine Learning detection for dropped file 17->40 42 4 other signatures 17->42 20 smtpndo66381.scr 12 2 17->20         started        24 powershell.exe 4 17->24         started        26 smtpndo66381.scr 17->26         started        process10 dnsIp11 32 ip-api.com 208.95.112.1, 49162, 80 TUT-ASUS United States 20->32 52 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 20->52 54 Tries to steal Mail credentials (via file / registry access) 20->54 56 Tries to harvest and steal browser information (history, passwords, etc) 20->56 58 Installs new ROOT certificates 24->58 signatures12
Score:
99%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/675b7ea4b230ad5e2fa488ffa4c59073171e808907cc9c5c5c230184a24b0864
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/675b7ea4b230ad5e2fa488ffa4c59073171e808907cc9c5c5c230184a24b0864/
Threat name:
Document-Office.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-04-09 10:45:35 UTC
File Type:
Document
Extracted files:
3
AV detection:
17 of 38 (44.74%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=m5nx5jfsgcwv4l5erd72jrmqomlr5aeja7gjyxc4emayjislbbsa._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240409-pxw5wsfb76/
Behaviour
Checks processor information in registry
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
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
Looks up external IP address via web service
Executes dropped EXE
Loads dropped DLL
Reads WinSCP keys stored on the system
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
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/675b7ea4b230/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/675b7ea4b230ad5e2fa488ffa4c59073171e808907cc9c5c5c230184a24b0864

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
Create hunting rule
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
Create hunting rule
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.

Malspam

AgentTesla

Word file doc 675b7ea4b230ad5e2fa488ffa4c59073171e808907cc9c5c5c230184a24b0864

(this sample)

  
Delivery method
Distributed via e-mail attachment

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