MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2a42c1c4a1cd6140d67029bdfbda9e7de979c2326f14b66ee580b014ae3dee5f. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2a42c1c4a1cd6140d67029bdfbda9e7de979c2326f14b66ee580b014ae3dee5f
SHA3-384 hash: bf5df443444839abaea9828c56a2b9ab59c38f8aca0a8c3a1daf56567fc7c4c415c7c815bb770465903458bb7492228f
SHA1 hash: 8fd5aa2e95c3469810b5bbccfbd00ea1cf9d0684
MD5 hash: bb1f5defeca41b7c5dacf2ac382b8f92
humanhash: cardinal-virginia-seventeen-twenty
File name:RFQ__Quotation Pvq-100-23-258.doc
Download: download sample
Signature Formbook
Create hunting rule
File size:101'858 bytes
First seen:2024-01-08 17:11:55 UTC
Last seen:Never
File type:Word file doc
MIME type:text/rtf
ssdeep 768:9uwAbZSibMX9gRWjtwAbZSibMX9gRWj+R+KCk9v0v1HjVLaVcw3rB4:9uwAlRkwAlRzQbkREHjxa2w3rW
TLSH T1A4A3D02DD34F02A98F5253769B1B1E5442BDBA6EF38512B5306C433933EAC3DA1252BD
Reporter abuse_ch
Tags:CVE-2017-11882 doc FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
424
Origin country :
NL NL
Vendor Threat Intelligence
Verdict:
Legit
File type:
application/msword
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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Searching for synchronization primitives
Launching a process
Creating a window
DNS request
Creating a file in the %AppData% directory
Сreating synchronization primitives
Sending an HTTP GET request
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
Fake RTF File
Link:
https://app.docguard.net/2a42c1c4a1cd6140d67029bdfbda9e7de979c2326f14b66ee580b014ae3dee5f/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control embedequation exploit lolbin packed shellcode
Link:
https://www.filescan.io/uploads/659c2ce5fd5068bbc3cbbebe/reports/afb2d84b-0961-4616-ac5e-d039106cf25d/overview
Verdict:
Malicious
Labled as:
CVE-2017-11882
Link:
https://www.hybrid-analysis.com/sample/2a42c1c4a1cd6140d67029bdfbda9e7de979c2326f14b66ee580b014ae3dee5f
Label:
Malicious
Suspicious Score:
10/10
Score Malicious:
1%
Score Benign:
0%
Link:
https://www.malware.ai/gui/files/?id=9a4a6fe9-6ec4-4454-989d-0595a5148af1
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/1371380
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
DLL side loading technique detected
Document exploit detected (process start blacklist hit)
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 submitted file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
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
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
Snort IDS alert for network traffic
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 signatures2 2 Behavior Graph ID: 1371380 Sample: RFQ__Quotation_Pvq-100-23-258.doc Startdate: 08/01/2024 Architecture: WINDOWS Score: 100 55 Snort IDS alert for network traffic 2->55 57 Malicious sample detected (through community Yara rule) 2->57 59 Antivirus detection for URL or domain 2->59 61 12 other signatures 2->61 11 WINWORD.EXE 336 14 2->11         started        process3 process4 13 EQNEDT32.EXE 11 11->13         started        18 EQNEDT32.EXE 11->18         started        dnsIp5 51 prime.topendpower.top 172.67.157.94, 49161, 80 CLOUDFLARENETUS United States 13->51 39 C:\Users\user\AppData\...\ugopounds22309.exe, PE32 13->39 dropped 41 C:\Users\user\AppData\...\ugopoundzx[1].exe, PE32 13->41 dropped 71 Office equation editor establishes network connection 13->71 73 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 13->73 20 ugopounds22309.exe 1 7 13->20         started        file6 signatures7 process8 signatures9 63 Machine Learning detection for dropped file 20->63 65 Injects a PE file into a foreign processes 20->65 23 ugopounds22309.exe 20->23         started        process10 signatures11 67 Maps a DLL or memory area into another process 23->67 26 YuDWDPnEbWxpOMqFSFXgxD.exe 23->26 injected process12 signatures13 69 Maps a DLL or memory area into another process 26->69 29 ARP.EXE 1 20 26->29         started        process14 dnsIp15 53 www.sqlite.org 45.33.6.223, 49165, 80 LINODE-APLinodeLLCUS United States 29->53 43 C:\Users\user\AppData\Local\...\sqlite3.dll, PE32 29->43 dropped 75 Tries to steal Mail credentials (via file / registry access) 29->75 77 Tries to harvest and steal browser information (history, passwords, etc) 29->77 79 Maps a DLL or memory area into another process 29->79 81 3 other signatures 29->81 34 YuDWDPnEbWxpOMqFSFXgxD.exe 29->34 injected 37 firefox.exe 29->37         started        file16 signatures17 process18 dnsIp19 45 www.westfieldgardenplaza.com 34->45 47 www.krystas.com 34->47 49 15 other IPs or domains 34->49
Score:
99%
Verdict:
Malware
File Type:
ASCII
Link:
https://malprob.io/report/2a42c1c4a1cd6140d67029bdfbda9e7de979c2326f14b66ee580b014ae3dee5f
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2a42c1c4a1cd6140d67029bdfbda9e7de979c2326f14b66ee580b014ae3dee5f/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-01-08 17:12:06 UTC
File Type:
Document
Extracted files:
3
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fjbmdrfbzvqubvtqfg67xwu6pxuxtqrsn4klm3xfqcybjlr55zpq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/240108-vqtzvaebdn/
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
Program crash
Drops file in Windows directory
Executes dropped EXE
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/2a42c1c4a1cd/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/2a42c1c4a1cd6140d67029bdfbda9e7de979c2326f14b66ee580b014ae3dee5f

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_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.

Comments