MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 263f6d102bd67cdbc4617b0db0ee891fb53d73128b9c88d0558b10c7527e6b46. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 263f6d102bd67cdbc4617b0db0ee891fb53d73128b9c88d0558b10c7527e6b46
SHA3-384 hash: 37f85c0e352fcccde7f5e1fe1cad2fb58c4d5236c604ac77e8deca234ad20f4d9c561cffe06f9c74437d20e309829689
SHA1 hash: b1983c6c49c904a4d5e1f2fbba90bf2510da544b
MD5 hash: 118072abaca518e6ece93908a9fee1f4
humanhash: emma-bulldog-oranges-arizona
File name:118072abaca518e6ece93908a9fee1f4
Download: download sample
Signature Formbook
Create hunting rule
File size:528'618 bytes
First seen:2024-06-13 04:06:18 UTC
Last seen:2024-06-13 04:21:34 UTC
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 6144:AwAYwAYwAYwAYwAYwAYwAYwAYwAYwAJEaAFM+qe:/Ea2D
TLSH T179B4792DD34E0259CB620277AB561E5142FDBB7EF38552A1302C537933EE83DA1252BE
Reporter zbetcheckin
Tags:CVE-2017-11882 FormBook rtf

Intelligence

File Origin
# of uploads :
2
# of downloads :
113
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
263f6d102bd67cdbc4617b0db0ee891fb53d73128b9c88d0558b10c7527e6b46.rtf
Verdict:
Suspicious activity
Analysis date:
2024-06-13 04:09:10 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/93fd7adc-c633-41f8-a239-d08c99d09e37

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.29015.RtfHeur.Msg.UNOFFICIAL
Create hunting rule

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

TwinWave.EvilDoc.RoomService.20230808.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
94.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=666a7057a2bce47be7d80e29win7simulatehigh_evasion
Tags:
Network Office Static Stealth
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
Connection attempt to an infection source by exploiting the app vulnerability
Creating a file in the %AppData% directory
Сreating synchronization primitives
Creating a file
Launching a service
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
Sending a TCP 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/263f6d102bd67cdbc4617b0db0ee891fb53d73128b9c88d0558b10c7527e6b46/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/263f6d102bd67cdbc4617b0db0ee891fb53d73128b9c88d0558b10c7527e6b46
Result
Verdict:
MALICIOUS
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1456337
Signature
.NET source code references suspicious native API functions
Antivirus detection for URL or domain
Document exploit detected (process start blacklist hit)
Drops PE files with a suspicious file extension
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 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)
Sigma detected: Equation Editor Network Connection
Sigma detected: Suspicious Microsoft Office Child Process
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1456337 Sample: 9jO1Dp6gDT.rtf Startdate: 13/06/2024 Architecture: WINDOWS Score: 100 47 www.aritum.top 2->47 71 Multi AV Scanner detection for domain / URL 2->71 73 Malicious sample detected (through community Yara rule) 2->73 75 Antivirus detection for URL or domain 2->75 77 10 other signatures 2->77 12 WINWORD.EXE 291 18 2->12         started        signatures3 process4 process5 14 EQNEDT32.EXE 11 12->14         started        19 EQNEDT32.EXE 12->19         started        dnsIp6 55 dukeenergyltd.top 188.114.97.3, 443, 49162 CLOUDFLARENETUS European Union 14->55 41 C:\Users\user\AppData\Roaming\bin28744.scr, PE32 14->41 dropped 43 C:\Users\user\AppData\Local\...\bin2[1].scr, PE32 14->43 dropped 59 Office equation editor establishes network connection 14->59 61 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 14->61 21 bin28744.scr 1 7 14->21         started        file7 signatures8 process9 signatures10 81 Machine Learning detection for dropped file 21->81 83 Injects a PE file into a foreign processes 21->83 24 bin28744.scr 21->24         started        process11 signatures12 85 Maps a DLL or memory area into another process 24->85 27 sFZIKIEzrJFo.exe 24->27 injected process13 signatures14 87 Maps a DLL or memory area into another process 27->87 89 Found direct / indirect Syscall (likely to bypass EDR) 27->89 30 findstr.exe 1 20 27->30         started        process15 dnsIp16 57 www.sqlite.org 45.33.6.223, 49164, 80 LINODE-APLinodeLLCUS United States 30->57 45 C:\Users\user\AppData\Local\...\sqlite3.dll, PE32 30->45 dropped 63 Tries to steal Mail credentials (via file / registry access) 30->63 65 Tries to harvest and steal browser information (history, passwords, etc) 30->65 67 Maps a DLL or memory area into another process 30->67 69 Queues an APC in another process (thread injection) 30->69 35 sFZIKIEzrJFo.exe 30->35 injected 39 firefox.exe 30->39         started        file17 signatures18 process19 dnsIp20 49 www.sjzsls.com 154.212.44.122, 49163, 80 PEGTECHINCUS Seychelles 35->49 51 ay62m.top 38.47.207.132, 49173, 49174, 49175 COGENT-174US United States 35->51 53 7 other IPs or domains 35->53 79 Found direct / indirect Syscall (likely to bypass EDR) 35->79 signatures21
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/263f6d102bd67cdbc4617b0db0ee891fb53d73128b9c88d0558b10c7527e6b46
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/263f6d102bd67cdbc4617b0db0ee891fb53d73128b9c88d0558b10c7527e6b46/
Threat name:
Document-Office.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-06-12 08:02:15 UTC
File Type:
Document
Extracted files:
3
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ey7w2ebl2z6nxrdbpmg3b3ujd62t24ysrooirucvrmimout6nnda._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
n/a
Link:
https://tria.ge/reports/240613-epmw5sxdlm/
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:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/6f411827-584e-470c-807e-91ebb58bd589
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/263f6d102bd6/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/263f6d102bd67cdbc4617b0db0ee891fb53d73128b9c88d0558b10c7527e6b46

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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 263f6d102bd67cdbc4617b0db0ee891fb53d73128b9c88d0558b10c7527e6b46

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2885855/

Comments


Avatar
zbet commented on 2024-06-13 04:06:19 UTC

url : hxxps://dukeenergyltd.top/bin2.doc