MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 11e7ffa53cdb57a6d71399a74efd26bc674d03d67a8b6dc75464d2576c687564. 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


Formbook


Vendor detections: 14


Intelligence 14 IOCs YARA 2 File information Comments
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SHA256 hash: 11e7ffa53cdb57a6d71399a74efd26bc674d03d67a8b6dc75464d2576c687564
SHA3-384 hash: 0621713e6ecb679609b853150dfe375fe70e50f6053281b302cfd9f9b75183fbe6f9c31bbf50d4912c8123afd6ebfaad
SHA1 hash: d345a079bb897c235559e679fdd8e1388a43a8a4
MD5 hash: 6f42aebfe381bc4ddb80eaec97dbbe2c
humanhash: robert-stairway-one-nuts
File name:6f42aebfe381bc4ddb80eaec97dbbe2c.rtf
Download: download sample
Signature Formbook
Create hunting rule
File size:42'269 bytes
First seen:2023-07-25 17:55:42 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 768:TFx0XaIsnPRIa4fwJMB7Gq1sykUv0lyt6yQM92/BEQoqacBmU:Tf0Xvx3EMB7L1sy1v8yQMk/PTt
TLSH T14F13D35AE79F1268CB410373271A5E889ABDB23DB35150B2785C833433ED87D46A66BC
TrID 71.4% (.PZ2) Poser pose (12500/1/4)
28.5% (.RTF) Rich Text Format (5000/1)
Reporter abuse_ch
Tags:CVE-2017-11882 FormBook rtf

Intelligence

File Origin
# of uploads :
1
# of downloads :
110
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
AEDRTLX3000157923.docx
Verdict:
Malicious activity
Analysis date:
2023-07-25 06:46:50 UTC
Tags:
exploit cve-2017-11882 loader agenttesla stealer
Link:
https://app.any.run/tasks/3b1455d7-a04b-419f-8762-8df026a7d637

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Sanesecurity.Malware.28669.RtfHeur.UNOFFICIAL
Create hunting rule

Sanesecurity.Shelter.Malware.BadRtf.ObjUpd.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.PKILLLureTextKingOfWishfulThinking.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Searching for synchronization primitives
Launching a process
Creating a window
Creating a file in the %AppData% directory
Сreating synchronization primitives
Sending an HTTP GET request to an infection source by exploiting the app vulnerability
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/11e7ffa53cdb57a6d71399a74efd26bc674d03d67a8b6dc75464d2576c687564/results/dashboard
Behaviour
BlacklistAPI detected
Gathering data
Verdict:
Malicious
Labled as:
CVE-2018-0802
Link:
https://www.hybrid-analysis.com/sample/11e7ffa53cdb57a6d71399a74efd26bc674d03d67a8b6dc75464d2576c687564
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/1279579
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
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)
Sample uses string decryption to hide its real strings
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1279579 Sample: xruvzyXGhU.rtf Startdate: 25/07/2023 Architecture: WINDOWS Score: 100 34 Multi AV Scanner detection for domain / URL 2->34 36 Found malware configuration 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 13 other signatures 2->40 7 EQNEDT32.EXE 11 2->7         started        12 WINWORD.EXE 291 20 2->12         started        process3 dnsIp4 26 87.121.221.212, 49183, 80 TING-WIRELESSUS Bulgaria 7->26 20 C:\Users\user\AppData\...\lawnofj6793.exe, PE32 7->20 dropped 22 C:\Users\user\AppData\Local\...\lawzx[1].exe, PE32 7->22 dropped 42 Office equation editor establishes network connection 7->42 44 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 7->44 14 lawnofj6793.exe 1 5 7->14         started        24 ~WRF{66724ADB-9929...C-9B934837700D}.tmp, Composite 12->24 dropped file5 signatures6 process7 signatures8 46 Multi AV Scanner detection for dropped file 14->46 48 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->48 50 Injects a PE file into a foreign processes 14->50 17 lawnofj6793.exe 2 14->17         started        process9 signatures10 28 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->28 30 Tries to steal Mail credentials (via file / registry access) 17->30 32 Tries to harvest and steal browser information (history, passwords, etc) 17->32
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/11e7ffa53cdb57a6d71399a74efd26bc674d03d67a8b6dc75464d2576c687564/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2023-07-25 03:56:00 UTC
File Type:
Document
Extracted files:
3
AV detection:
13 of 24 (54.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=cht77jj43nl2nvyttgtu57jgxrtu2a6wpkfw3r2umtjfo3diovsa._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Link:
https://tria.ge/reports/230725-wh1yvseg32/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Office loads VBA resources, possible macro or embedded object present
Drops file in Windows directory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Executes dropped EXE
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
Blocklisted process makes network request
Downloads MZ/PE file
AgentTesla
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/11e7ffa53cdb/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/11e7ffa53cdb57a6d71399a74efd26bc674d03d67a8b6dc75464d2576c687564

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.

Web download

Formbook

Rich Text Format (RTF) rtf 11e7ffa53cdb57a6d71399a74efd26bc674d03d67a8b6dc75464d2576c687564

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2688782/
  
Delivery method
Distributed via web download

Comments