MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9053ba7d545be692e4ad58476a03d04c009293346df0644ae1b5ce24940b368f. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 9053ba7d545be692e4ad58476a03d04c009293346df0644ae1b5ce24940b368f
SHA3-384 hash: 319a198a4903bc693a41b851402ae9eb7adc7fd81bb0a439715124568cc938fd67ed4a70259da40351fcd69707c88c16
SHA1 hash: 1e9a590b79cfc5e0ca1f851245f187a0d223ec5e
MD5 hash: 4555e076ee5f44a8125fa3e250a1a230
humanhash: magazine-oklahoma-massachusetts-neptune
File name:test_240.doc
Download: download sample
Signature Formbook
Create hunting rule
File size:17'532 bytes
First seen:2022-08-05 06:51:27 UTC
Last seen:Never
File type:Word file doc
MIME type:application/octet-stream
ssdeep 384:OAkxRooISjXn5+T5R8nc8bvlFNMHefJqs7h6wprXUIDb5R:O3omLns5R8zblseJqtwNR
TLSH T16872137EB69B8E5CAB17C665150A7FA61629F41C63C444C1FBBCE7307E1D80B8B21638
Reporter JAMESWT_WT
Tags:CVE-2017-11882 doc FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
247
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
test_240.doc
Verdict:
Malicious activity
Analysis date:
2022-08-05 07:25:30 UTC
Tags:
trojan opendir exploit CVE-2017-11882 loader
Link:
https://app.any.run/tasks/5f3226e9-a17a-45c4-95fb-db477a6c2e25

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
Sending a custom TCP request
Creating a window
Сreating synchronization primitives
Result
Verdict:
Malicious
File Type:
Fake RTF File
Link:
https://app.docguard.net/9053ba7d545be692e4ad58476a03d04c009293346df0644ae1b5ce24940b368f/results/dashboard
Verdict:
No Threat
Threat level:
  10/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/62ecbe19bcf76fcb6ce717c6/reports/d58ca6d5-3431-4984-a313-9abd71ad057a/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/1046613
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 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
Snort IDS alert for network traffic
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)
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: 679106 Sample: test_240.doc Startdate: 05/08/2022 Architecture: WINDOWS Score: 100 47 www.wiltongm.com 2->47 49 www.valor-ems.com 2->49 51 13 other IPs or domains 2->51 73 Initial sample is an obfuscated RTF file 2->73 75 Snort IDS alert for network traffic 2->75 77 Malicious sample detected (through community Yara rule) 2->77 79 17 other signatures 2->79 10 EQNEDT32.EXE 12 2->10         started        15 WINWORD.EXE 291 21 2->15         started        signatures3 process4 dnsIp5 53 192.3.152.171, 49171, 80 AS-COLOCROSSINGUS United States 10->53 41 C:\Users\user\AppData\Local\...\vbc[1].exe, PE32 10->41 dropped 43 C:\Users\Public\vbc.exe, PE32 10->43 dropped 89 Office equation editor establishes network connection 10->89 91 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 10->91 17 vbc.exe 1 8 10->17         started        45 ~WRF{224C1F42-EB9F...2-9CD5F7F4A59C}.tmp, Composite 15->45 dropped file6 signatures7 process8 file9 37 C:\Users\user\AppData\Roaming\lcFcYyuZ.exe, PE32 17->37 dropped 39 C:\Users\user\AppData\Local\...\tmp199F.tmp, XML 17->39 dropped 61 Machine Learning detection for dropped file 17->61 63 Uses schtasks.exe or at.exe to add and modify task schedules 17->63 65 Adds a directory exclusion to Windows Defender 17->65 67 Injects a PE file into a foreign processes 17->67 21 vbc.exe 17->21         started        24 powershell.exe 6 17->24         started        26 schtasks.exe 17->26         started        28 vbc.exe 17->28         started        signatures10 process11 signatures12 81 Modifies the context of a thread in another process (thread injection) 21->81 83 Maps a DLL or memory area into another process 21->83 85 Sample uses process hollowing technique 21->85 87 Queues an APC in another process (thread injection) 21->87 30 explorer.exe 21->30 injected process13 dnsIp14 55 www.emobilhelden.com 217.160.0.123, 49173, 80 ONEANDONE-ASBrauerstrasse48DE Germany 30->55 57 www.havra-club.com 44.227.65.245, 49174, 80 AMAZON-02US United States 30->57 59 2 other IPs or domains 30->59 93 System process connects to network (likely due to code injection or exploit) 30->93 34 wininit.exe 30->34         started        signatures15 process16 signatures17 69 Modifies the context of a thread in another process (thread injection) 34->69 71 Maps a DLL or memory area into another process 34->71
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/9053ba7d545be692e4ad58476a03d04c009293346df0644ae1b5ce24940b368f/
Threat name:
Document-Office.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2022-08-04 17:40:32 UTC
File Type:
Document
Extracted files:
5
AV detection:
16 of 39 (41.03%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sbj3u7kulptjfzfnlbdwua6qjqajfezunxygisxbwxhcjfalg2hq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/220805-h6nfsaged7/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
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 AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of SetThreadContext
Checks computer location settings
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/9053ba7d545b/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/9053ba7d545be692e4ad58476a03d04c009293346df0644ae1b5ce24940b368f

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 9053ba7d545be692e4ad58476a03d04c009293346df0644ae1b5ce24940b368f

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2264718/
  
Delivery method
Distributed via web download

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