MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a90b47db3b8967d11477fddf847f7e2edd6933462b90998fc4b32ae4023348fa. 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 File information Comments

SHA256 hash: a90b47db3b8967d11477fddf847f7e2edd6933462b90998fc4b32ae4023348fa
SHA3-384 hash: bf076f8df4a1f0e4725ba5ebc76348c858e61552a2719cec88e326f1297db7a6552d2c335dd809b4ba7ebcc427b5bb54
SHA1 hash: 8a9d0ea7a683e05af507a385e3f69cc012ab2fd6
MD5 hash: 4abdd84a9ac2da83f53bb00027f2af8f
humanhash: edward-vegan-juliet-edward
File name:Inquiry.docx
Download: download sample
Signature Formbook
File size:469'737 bytes
First seen:2024-10-31 09:42:40 UTC
Last seen:Never
File type:Word file doc
MIME type:application/vnd.openxmlformats-officedocument.wordprocessingml.document
ssdeep 6144:KEbUb0cVLNEzYvRSPlaMXKaAi69qltTGSmNZ5W9tmYL6qoPQ7tmYB/l2mDlJjAIH:nkF5SPMM6I9X4X89mrm9Bt2mhW8G0Yq
TLSH T1D1A412300CC7D0FC4B13F869FAD5225923EC6D235D071974A66ABA6A33598A2C773F16
TrID 52.2% (.DOCX) Word Microsoft Office Open XML Format document (23500/1/4)
38.8% (.ZIP) Open Packaging Conventions container (17500/1/4)
8.8% (.ZIP) ZIP compressed archive (4000/1)
Magika docx
Reporter lowmal3
Tags:doc FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
3'202
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Inquiry.docx
Verdict:
Suspicious activity
Analysis date:
2024-10-31 09:56:20 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Tags:
office agent micro
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Searching for synchronization primitives
Using the Windows Management Instrumentation requests
Creating a window
Creating a file
DNS request
Connection attempt
Sending a custom TCP request
Connection attempt by exploiting the app vulnerability
Launching a process by exploiting the app vulnerability
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade
Label:
Malicious
Suspicious Score:
9.6/10
Score Malicious:
97%
Score Benign:
3%
Result
Verdict:
MALICIOUS
Details
IPv4 Dotted Quad URL
A URL was detected referencing a direct IP address, as opposed to a domain name.
External Relationship Element
Document contains an externally hosted relationship, which fetches further content.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for dropped file
Contains an external reference to another file
Document exploit detected (process start blacklist hit)
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)
Microsoft Office drops suspicious files
Microsoft Office launches external ms-search protocol handler (WebDAV)
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)
Office viewer loads remote template
Shellcode detected
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: Equation Editor Network Connection
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Suspicious Binary In User Directory Spawned From Office Application
Sigma detected: Suspicious Microsoft Office Child Process
Suricata IDS alerts for network traffic
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1545953 Sample: Inquiry.docx.doc Startdate: 31/10/2024 Architecture: WINDOWS Score: 100 45 Suricata IDS alerts for network traffic 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Antivirus detection for dropped file 2->49 51 15 other signatures 2->51 8 WINWORD.EXE 313 50 2->8         started        process3 dnsIp4 37 87.120.84.39, 49161, 49162, 49163 SHARCOM-ASBG Bulgaria 8->37 25 C:\Users\user\...\txt on 87.120.84.39.url, MS 8->25 dropped 27 C:\Users\user\...\nfeF2DeBp7q52qq.doc.url, MS 8->27 dropped 29 ~WRF{BF6B95CA-3D46...6-4CB2C584D121}.tmp, Composite 8->29 dropped 31 2 other malicious files 8->31 dropped 55 Microsoft Office launches external ms-search protocol handler (WebDAV) 8->55 57 Office viewer loads remote template 8->57 59 Microsoft Office drops suspicious files 8->59 13 EQNEDT32.EXE 11 8->13         started        file5 signatures6 process7 file8 33 C:\Users\user\AppData\...\weudagodbin.exe, PE32 13->33 dropped 35 C:\Users\user\...\nfeF2DeBp7q52qq[1].exe, PE32 13->35 dropped 61 Office equation editor establishes network connection 13->61 63 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 13->63 17 weudagodbin.exe 3 13->17         started        signatures9 process10 signatures11 39 Machine Learning detection for dropped file 17->39 41 Adds a directory exclusion to Windows Defender 17->41 43 Injects a PE file into a foreign processes 17->43 20 powershell.exe 4 17->20         started        23 weudagodbin.exe 17->23         started        process12 signatures13 53 Installs new ROOT certificates 20->53
Threat name:
Document-Word.Trojan.Groooboor
Status:
Malicious
First seen:
2024-10-30 10:55:19 UTC
File Type:
Document
Extracted files:
20
AV detection:
13 of 24 (54.17%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook unknown_loader_037
Similar samples:
Result
Malware family:
n/a
Score:
  10/10
Tags:
discovery execution
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
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
Uses Volume Shadow Copy service COM API
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of SetThreadContext
Abuses OpenXML format to download file from external location
Executes dropped EXE
Loads dropped DLL
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Downloads MZ/PE file
Process spawned unexpected child process
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Word file doc a90b47db3b8967d11477fddf847f7e2edd6933462b90998fc4b32ae4023348fa

(this sample)

  
Delivery method
Distributed via e-mail attachment

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