MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5ed29e3ddd922ee865dc0c96484f93f247cf848d21304aae239499eeccba500f. 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: 5ed29e3ddd922ee865dc0c96484f93f247cf848d21304aae239499eeccba500f
SHA3-384 hash: 4ee8fe787ae410e1f2bfd8911b663e9deda0dab88fb3c1fbc29d2ee112bfdc65b44de6e64019a7f89f5120bcc27fd590
SHA1 hash: 8eb2328dd553ead328157c9eb9ff0c6aebc47033
MD5 hash: a7a0994f30b5d0df9bef8ffcc9854c60
humanhash: oranges-finch-lactose-utah
File name:60.doc
Download: download sample
Signature Formbook
Create hunting rule
File size:23'814 bytes
First seen:2022-08-01 13:07:38 UTC
Last seen:Never
File type:Word file doc
MIME type:application/octet-stream
ssdeep 384:NvVG78AB4GodLBx2OkMF9GHCtpwT0kttyeQg1XsNPQNZabn1ZwKz:N9IPB4nx2YFEHCvwYkthrsuNZg15z
TLSH T17AB2ABBEB68B8E4CEA07D755140ABEBA162DF91D63C440C1BBBCE7307D1D94A8B11538
Reporter JAMESWT_WT
Tags:CVE-2017-11882 doc FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
233
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
SPAM.zip
Verdict:
Malicious activity
Analysis date:
2022-08-01 13:04:45 UTC
Tags:
trojan opendir exploit CVE-2017-11882 loader encrypted formbook stealer
Link:
https://app.any.run/tasks/622fdd69-41d0-4dc3-abaa-ed6336c58542

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/msword
Has a screenshot:
False
Contains macros:
False
Detection(s):
SecuriteInfo.com.Spam-473.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.27333.RtfHeur.BadVer.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.FakeRTF-1.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.26244.RtfHeur.UNOFFICIAL
Create hunting rule

MiscreantPunch.RTF.EvilRTF.CVE-2017-0199-Obfus.UNOFFICIAL
Create hunting rule

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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Sending a custom TCP request
Result
Verdict:
Malicious
File Type:
Fake RTF File
Link:
https://app.docguard.net/5ed29e3ddd922ee865dc0c96484f93f247cf848d21304aae239499eeccba500f/results/dashboard
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
CVE-2017-11882 embedequation exploit javascript packed shellcode
Link:
https://www.filescan.io/uploads/62e7d0785c07b66577e6fe9a/reports/4f826352-a9e2-4721-b7a8-e733d004e5d7/overview
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/1044320
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Drops PE files to the user root directory
Initial sample is an obfuscated RTF file
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 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: File Dropped By EQNEDT32EXE
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 676816 Sample: 60.doc Startdate: 01/08/2022 Architecture: WINDOWS Score: 100 45 www.buggingin.com 2->45 57 Initial sample is an obfuscated RTF file 2->57 59 Multi AV Scanner detection for domain / URL 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 17 other signatures 2->63 10 EQNEDT32.EXE 12 2->10         started        15 WINWORD.EXE 291 21 2->15         started        signatures3 process4 dnsIp5 47 104.168.32.38, 49171, 80 AS-COLOCROSSINGUS United States 10->47 37 C:\Users\user\AppData\Local\...\vbc[1].exe, PE32 10->37 dropped 39 C:\Users\Public\vbc.exe, PE32 10->39 dropped 73 Office equation editor establishes network connection 10->73 75 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 10->75 17 vbc.exe 1 8 10->17         started        41 C:\Users\user\Desktop\~$60.doc, data 15->41 dropped 43 ~WRF{AA374753-633F...8-2054DA3187EC}.tmp, Composite 15->43 dropped file6 signatures7 process8 file9 33 C:\Users\user\AppData\...\qEggUVSmROjcLY.exe, PE32 17->33 dropped 35 C:\Users\user\AppData\Local\...\tmp9660.tmp, XML 17->35 dropped 49 Multi AV Scanner detection for dropped file 17->49 51 Machine Learning detection for dropped file 17->51 53 Uses schtasks.exe or at.exe to add and modify task schedules 17->53 55 2 other signatures 17->55 21 vbc.exe 17->21         started        24 powershell.exe 6 17->24         started        26 schtasks.exe 17->26         started        signatures10 process11 signatures12 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 28 explorer.exe 21->28 injected process13 process14 30 msiexec.exe 28->30         started        signatures15 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
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5ed29e3ddd922ee865dc0c96484f93f247cf848d21304aae239499eeccba500f/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2022-08-01 13:08:05 UTC
File Type:
Document
Extracted files:
5
AV detection:
15 of 26 (57.69%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=l3jj4po5sixoqzo4bsleqt4t6jd47beneeyevlrdssm65tf2kahq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/220801-r21d8aafbk/
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 use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Drops file in Windows directory
Loads dropped DLL
Uses the VBS compiler for execution
Blocklisted process makes network request
Downloads MZ/PE file
Executes dropped EXE
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/5ed29e3ddd92/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.05
Link:
https://yomi.yoroi.company/submissions/5ed29e3ddd922ee865dc0c96484f93f247cf848d21304aae239499eeccba500f

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_RTF_Header_Anomaly_RID2F7F
Create hunting rule
Author:Florian Roth
Description:Detects malformed RTF header often used to trick mechanisms that check for a full RTF header
Reference:https://twitter.com/ItsReallyNick/status/975705759618158593

File information

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

Web download

Formbook

Word file doc 5ed29e3ddd922ee865dc0c96484f93f247cf848d21304aae239499eeccba500f

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2263546/
  
Delivery method
Distributed via web download

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