MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5a6fcfcd7ef3d202d078f89b474640057b1c18ea5a600869bb512aa91dcea79d. 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 1 File information Comments
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SHA256 hash: 5a6fcfcd7ef3d202d078f89b474640057b1c18ea5a600869bb512aa91dcea79d
SHA3-384 hash: 98eb864eb0adadc1232a8570e5740a52ac0934e8295b796b16ccb4f9a8d7d6a22a179ea9d88f639acbd8b8949bb50877
SHA1 hash: b46ca3d9e2daf5b200453b991ea9cc294aa06e35
MD5 hash: 0a15ee96cad434726960422d629063c5
humanhash: jig-mobile-solar-magnesium
File name:SecuriteInfo.com.Exploit.ShellCode.69.16531.4903
Download: download sample
Signature Formbook
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File size:15'078 bytes
First seen:2022-09-23 04:05:57 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 192:aGUiYNyinwxoeFeInaJSZ0kxP+zfmCvTtzrj5FYgETJCmIJmLF1cf6oMmhEqm:lUpsbpnaAZ0kV0rx3bkemhu6oLEqm
TLSH T14162593EF28B8E8CCF07D294140A3F861668F92C93C598D2B7BCF738A94595BD612534
Reporter SecuriteInfoCom
Tags:CVE-2017-11882 FormBook rtf

Intelligence

File Origin
# of uploads :
1
# of downloads :
231
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Malicious
File type:
application/rtf
Has a screenshot:
False
Contains macros:
False
Detection(s):
SecuriteInfo.com.Exploit.ShellCode.69.16531.4903.UNOFFICIAL
Create hunting rule

MiscreantPunch.RTF.2017-0199.Obfus.171711.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Searching for synchronization primitives
Launching a process
Creating a window
Creating a file
Сreating synchronization primitives
Sending an HTTP GET 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/5a6fcfcd7ef3d202d078f89b474640057b1c18ea5a600869bb512aa91dcea79d/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/632d30ad39767769653e8d52/reports/bdeeb44c-5231-4e43-b24e-c5f1b52de610/overview
Result
Verdict:
MALICIOUS
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1075656
Signature
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Drops PE files to the user root directory
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)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 708198 Sample: SecuriteInfo.com.Exploit.Sh... Startdate: 23/09/2022 Architecture: WINDOWS Score: 100 38 Multi AV Scanner detection for domain / URL 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 Antivirus / Scanner detection for submitted sample 2->42 44 13 other signatures 2->44 10 EQNEDT32.EXE 12 2->10         started        15 WINWORD.EXE 336 18 2->15         started        17 EQNEDT32.EXE 2->17         started        process3 dnsIp4 36 107.172.61.141, 49171, 80 AS-COLOCROSSINGUS United States 10->36 32 C:\Users\user\AppData\Local\...\vbc[1].exe, PE32 10->32 dropped 34 C:\Users\Public\vbc.exe, PE32 10->34 dropped 68 Office equation editor establishes network connection 10->68 70 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 10->70 19 vbc.exe 1 5 10->19         started        file5 signatures6 process7 signatures8 46 Multi AV Scanner detection for dropped file 19->46 48 Machine Learning detection for dropped file 19->48 50 Tries to detect virtualization through RDTSC time measurements 19->50 52 Injects a PE file into a foreign processes 19->52 22 vbc.exe 19->22         started        process9 signatures10 54 Modifies the context of a thread in another process (thread injection) 22->54 56 Maps a DLL or memory area into another process 22->56 58 Sample uses process hollowing technique 22->58 60 Queues an APC in another process (thread injection) 22->60 25 explorer.exe 22->25 injected process11 process12 27 cmstp.exe 25->27         started        signatures13 62 Modifies the context of a thread in another process (thread injection) 27->62 64 Maps a DLL or memory area into another process 27->64 66 Tries to detect virtualization through RDTSC time measurements 27->66 30 cmd.exe 27->30         started        process14
Detection:
cve-2017-11882-shellcode
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Link:
https://mwdb.cert.pl/sample/5a6fcfcd7ef3d202d078f89b474640057b1c18ea5a600869bb512aa91dcea79d/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2022-09-22 09:10:48 UTC
File Type:
Document
Extracted files:
4
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ljx47tl66pjafudy7cnuorsaav5ryghkljqaq2n3kevkshoou6oq._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:sde7 rat spyware stealer trojan
Link:
https://tria.ge/reports/220923-en37qshacp/
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 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
Downloads MZ/PE file
Executes dropped EXE
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e4e3313a-95cb-44c6-be5d-25575f0c612d
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/5a6fcfcd7ef3/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/5a6fcfcd7ef3d202d078f89b474640057b1c18ea5a600869bb512aa91dcea79d

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
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Author:ditekSHen
Description:Detects RTF documents with non-standard version and embeding one of the object mostly observed in exploit documents.

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 5a6fcfcd7ef3d202d078f89b474640057b1c18ea5a600869bb512aa91dcea79d

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2311932/
  
Delivery method
Distributed via web download

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