MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7792832df2942aa6a7d7085f7b03b219ba7525c4d48deba292b9c03b0bc75ce2. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7792832df2942aa6a7d7085f7b03b219ba7525c4d48deba292b9c03b0bc75ce2
SHA3-384 hash: b9e14730a39602e1b563bdf9b8e4f511081535dcb2b671506f6f0f190c2645bd9e494145c870f432e0a99b1830a2e387
SHA1 hash: c12c9c5a58cf197cea76dd53a17f92a8553e6588
MD5 hash: f34f96b8cd842e5709a476360c30a4d2
humanhash: october-white-emma-ohio
File name:SecuriteInfo.com.Exploit.ShellCode.69.20357.30006
Download: download sample
Signature Formbook
Create hunting rule
File size:80'760 bytes
First seen:2024-04-30 09:21:07 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 1536:yCRpNXtiyZaLxwfhJ8WLK2XJH1RSShyJdR68nOXMsroBSFV8+ccMK3exTCj8KwVs:ycpN4yZaLahJ8WLK2XTRwJz6uOXMsroM
TLSH T1C683FC2EE34F0925DF55977B434A0E0A06FCB33DB28540B179AC97343BAD92E466297C
Reporter SecuriteInfoCom
Tags:CVE-2017-11882 FormBook rtf

Intelligence

File Origin
# of uploads :
1
# of downloads :
92
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
7792832df2942aa6a7d7085f7b03b219ba7525c4d48deba292b9c03b0bc75ce2.rtf
Verdict:
Suspicious activity
Analysis date:
2024-04-30 09:22:32 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/4984ac34-995d-4aa7-8e32-55a08a3f310c

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
Detection(s):
Sanesecurity.Malware.29030.RtfHeur.UNOFFICIAL
Create hunting rule

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

MiscreantPunch.RTF.2017-0199.Obfus.171711.UNOFFICIAL
Create hunting rule

TwinWave.EvilRTF.ObfusRunAway.20240409.UNOFFICIAL
Create hunting rule

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
Launching a service
Creating a file
Connection attempt by exploiting the app vulnerability
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Creating a process from a recently created file
Launching a process by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/7792832df2942aa6a7d7085f7b03b219ba7525c4d48deba292b9c03b0bc75ce2/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
embedequation exploit packed shellcode
Link:
https://www.filescan.io/uploads/6630b84447bfd8641ebb1367/reports/92450f73-0e70-4f90-ae7f-9681b38d350c/overview
Verdict:
Malicious
Labled as:
CVE-2017-11882
Link:
https://www.hybrid-analysis.com/sample/7792832df2942aa6a7d7085f7b03b219ba7525c4d48deba292b9c03b0bc75ce2
Result
Threat name:
FormBook, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1433958
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Document exploit detected (process start blacklist hit)
Found direct / indirect Syscall (likely to bypass EDR)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Shellcode detected
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: Equation Editor Network Connection
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: Legitimate Application Dropped Archive
Sigma detected: Legitimate Application Dropped Executable
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 steal Mail credentials (via file / registry access)
Yara detected FormBook
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1433958 Sample: SecuriteInfo.com.Exploit.Sh... Startdate: 30/04/2024 Architecture: WINDOWS Score: 100 58 Snort IDS alert for network traffic 2->58 60 Multi AV Scanner detection for domain / URL 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 22 other signatures 2->64 11 WINWORD.EXE 336 13 2->11         started        process3 process4 13 EQNEDT32.EXE 12 11->13         started        18 EQNEDT32.EXE 11->18         started        dnsIp5 54 103.29.0.182, 49161, 80 NINENETWORKS-KHSATURNHOLDINGSLIMITEDKH unknown 13->54 40 C:\Users\user\AppData\Roaming\HJCC.exe, PE32 13->40 dropped 42 C:\Users\user\AppData\Local\...\bin[1].exe, PE32 13->42 dropped 82 Office equation editor establishes network connection 13->82 84 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 13->84 20 HJCC.exe 1 7 13->20         started        file6 signatures7 process8 signatures9 68 Antivirus detection for dropped file 20->68 70 Multi AV Scanner detection for dropped file 20->70 72 Machine Learning detection for dropped file 20->72 74 Injects a PE file into a foreign processes 20->74 23 HJCC.exe 20->23         started        process10 signatures11 76 Maps a DLL or memory area into another process 23->76 26 glcBfRNmoenXvaKimByciOBuxyliyH.exe 23->26 injected process12 signatures13 78 Maps a DLL or memory area into another process 26->78 80 Found direct / indirect Syscall (likely to bypass EDR) 26->80 29 finger.exe 1 20 26->29         started        process14 dnsIp15 56 www.sqlite.org 45.33.6.223, 49163, 80 LINODE-APLinodeLLCUS United States 29->56 44 C:\Users\user\AppData\Local\...\sqlite3.dll, PE32 29->44 dropped 46 C:\...\sqlite-dll-win32-x86-3180000[1].zip, Zip 29->46 dropped 86 Tries to steal Mail credentials (via file / registry access) 29->86 88 Tries to harvest and steal browser information (history, passwords, etc) 29->88 90 Maps a DLL or memory area into another process 29->90 92 2 other signatures 29->92 34 glcBfRNmoenXvaKimByciOBuxyliyH.exe 29->34 injected 38 firefox.exe 29->38         started        file16 signatures17 process18 dnsIp19 48 www.deniztemiz.fun 46.28.105.2, 49188, 49189, 49190 WEDOSCZ Czech Republic 34->48 50 www.gudvain.top 203.161.62.199, 49180, 49181, 49182 VNPT-AS-VNVNPTCorpVN Malaysia 34->50 52 16 other IPs or domains 34->52 66 Found direct / indirect Syscall (likely to bypass EDR) 34->66 signatures20
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/7792832df2942aa6a7d7085f7b03b219ba7525c4d48deba292b9c03b0bc75ce2
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/7792832df2942aa6a7d7085f7b03b219ba7525c4d48deba292b9c03b0bc75ce2/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-04-28 20:58:25 UTC
File Type:
Document
Extracted files:
4
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=o6jiglpssqvknj6xbbpxwa5sdg5hkjoe2sg6xiusxhadwc6hltra._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
n/a
Link:
https://tria.ge/reports/240430-lbwqfshc4z/
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 behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Drops file in Windows directory
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
Process spawned unexpected child process
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/7792832df294/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/7792832df2942aa6a7d7085f7b03b219ba7525c4d48deba292b9c03b0bc75ce2

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 7792832df2942aa6a7d7085f7b03b219ba7525c4d48deba292b9c03b0bc75ce2

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2832451/
  
Delivery method
Distributed via web download

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