MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2bd2b5a44a6451840ab0f820f08f2eed0f1763711b0e0427fb4d0579e6603fa2. 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: 11


Intelligence 11 IOCs YARA 7 File information Comments
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SHA256 hash: 2bd2b5a44a6451840ab0f820f08f2eed0f1763711b0e0427fb4d0579e6603fa2
SHA3-384 hash: 13d3be6d2ec3ad6d22952b79ba89acfa0215e9617b3f4806afcbf0364e397f64e63a4b5038b268f8b82e3c7bdb89a68f
SHA1 hash: f2bcfa267be90302db50f807aa03954f56de26de
MD5 hash: ca08afc75b2b74bc87663b2af0c53d55
humanhash: beer-thirteen-eighteen-speaker
File name:SecuriteInfo.com.Exploit.Rtf.Obfuscated.32.2221.13825
Download: download sample
Signature Formbook
Create hunting rule
File size:9'907 bytes
First seen:2021-03-31 10:45:38 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 192:508bLoFwYlC5P1oKJtlUX1B2/z4ZrDiS0sXrRMowS9sjoURwPZZRS:68fAwYlC9umlUDVNxySi8URUrI
TLSH AC126BC4E3EA84B0C3A462B74364524A407FDAB7B6A79CF07D9DE1523F65A031E752B0
Reporter SecuriteInfoCom
Tags:CVE-2017-11882 FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
116
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Customer Account Details (1).docx
Verdict:
Malicious activity
Analysis date:
2021-03-31 05:35:23 UTC
Tags:
generated-doc trojan exploit CVE-2017-11882 loader
Link:
https://app.any.run/tasks/103c791f-9b37-4add-9c83-b140217a377a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/rtf
Has a screenshot:
False
Contains macros:
False
Detection(s):
SecuriteInfo.com.Exploit.Rtf.Obfuscated.32.2221.13825.UNOFFICIAL
Create hunting rule

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

TwinWave.EvilDoc.RTFFakeVersionWithObjUpdateUKSurfMix.20200514.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a window
DNS request
Sending a custom TCP request by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/2bd2b5a44a6451840ab0f820f08f2eed0f1763711b0e0427fb4d0579e6603fa2/results/dashboard
Result
Verdict:
MALICIOUS
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/660173
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Drops PE files to the user root directory
Found malware configuration
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
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Office equation editor drops PE file
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
Sigma detected: Droppers Exploiting CVE-2017-11882
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: Executables Started in Suspicious Folder
Sigma detected: Execution in Non-Executable Folder
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: Suspicious Program Location Process Starts
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 379044 Sample: SecuriteInfo.com.Exploit.Rt... Startdate: 31/03/2021 Architecture: WINDOWS Score: 100 39 www.okitmall.com 2->39 57 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->57 59 Found malware configuration 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 16 other signatures 2->63 11 EQNEDT32.EXE 13 2->11         started        16 WINWORD.EXE 291 21 2->16         started        signatures3 process4 dnsIp5 47 rkkrstdygorgiousejtw.dns.army 103.125.191.187, 49168, 80 VNPT-AS-VNVIETNAMPOSTSANDTELECOMMUNICATIONSGROUPVN Viet Nam 11->47 49 is.gd 104.25.233.53, 443, 49167 CLOUDFLARENETUS United States 11->49 35 C:\Users\user\AppData\Local\...\win32[1].exe, PE32 11->35 dropped 37 C:\Users\Public\vbc.exe, PE32 11->37 dropped 75 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 11->75 18 vbc.exe 11->18         started        file6 signatures7 process8 signatures9 51 Machine Learning detection for dropped file 18->51 53 Tries to detect virtualization through RDTSC time measurements 18->53 55 Injects a PE file into a foreign processes 18->55 21 vbc.exe 18->21         started        24 vbc.exe 18->24         started        process10 signatures11 65 Modifies the context of a thread in another process (thread injection) 21->65 67 Maps a DLL or memory area into another process 21->67 69 Sample uses process hollowing technique 21->69 71 Queues an APC in another process (thread injection) 21->71 26 explorer.exe 21->26 injected process12 dnsIp13 41 www.figulco.com 104.21.94.16, 49171, 80 CLOUDFLARENETUS United States 26->41 43 www.japannxt.com 26->43 45 3 other IPs or domains 26->45 73 System process connects to network (likely due to code injection or exploit) 26->73 30 wlanext.exe 26->30         started        signatures14 process15 signatures16 77 Modifies the context of a thread in another process (thread injection) 30->77 79 Maps a DLL or memory area into another process 30->79 81 Tries to detect virtualization through RDTSC time measurements 30->81 33 cmd.exe 30->33         started        process17
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2bd2b5a44a6451840ab0f820f08f2eed0f1763711b0e0427fb4d0579e6603fa2/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2021-03-31 10:46:06 UTC
AV detection:
15 of 29 (51.72%)
Threat level:
  5/5
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat
Link:
https://tria.ge/reports/210331-18kh1ncfga/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
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
Loads dropped DLL
Uses the VBS compiler for execution
Blocklisted process makes network request
Executes dropped EXE
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.okitmall.com/iu4d/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Bloodhound
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/2bd2b5a44a6451840ab0f820f08f2eed0f1763711b0e0427fb4d0579e6603fa2

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:Email_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Email in files like avemaria
Rule name:INDICATOR_RTF_EXPLOIT_CVE_2017_11882_4
Create hunting rule
Author:ditekSHen
Description:detects RTF variant documents potentially exploiting CVE-2018-0802 or CVE-2017-11882
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:IPPort_combo_mem
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:Select_from_enumeration
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:SharedStrings
Create hunting rule
Author:Katie Kleemola
Description:Internal names found in LURK0/CCTV0 samples
Rule name:UAC_bypass_bin_mem
Create hunting rule
Author:James_inthe_box
Description:UAC bypass in files like avemaria

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 2bd2b5a44a6451840ab0f820f08f2eed0f1763711b0e0427fb4d0579e6603fa2

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1099930/
  
Delivery method
Distributed via web download

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