MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b13ad44ebdbdc53068e26d7aa84805bc1a4550a37c750ed726aee47cd692bb7a. 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 3 File information Comments
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SHA256 hash: b13ad44ebdbdc53068e26d7aa84805bc1a4550a37c750ed726aee47cd692bb7a
SHA3-384 hash: 298b1c7bc6e9732e73e2478d31d1a326cbae2b007ad4c0379c85a8cec50e0c7f396938f627fab6cad2fd1fdf0ea9c6b0
SHA1 hash: 3fda3f2ec1ded09f1e5531ea49a82a7c49236dbb
MD5 hash: 004ebc625831cb1f9d1ee2fa23a526e1
humanhash: two-shade-london-muppet
File name:RFQ.doc__.rtf
Download: download sample
Signature Formbook
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File size:24'642 bytes
First seen:2022-11-13 17:12:34 UTC
Last seen:2022-11-13 18:48:20 UTC
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 384:JQMmdOFNYY0aaaIswqPeOrka1+fHQJ+t3rQkRhZiwj7tIyXdYz/YpA1:nFx0XaIsnPRIa4fwJMB99Xiz/YpA1
TLSH T14DB22A53FB98137C479601A5765E2FDCE73E953833A095A128AC9374238687A433B6EC
TrID 71.4% (.PZ2) Poser pose (12500/1/4)
28.5% (.RTF) Rich Text Format (5000/1)
Reporter abuse_ch
Tags:CVE-2017-11882 FormBook rtf

Intelligence

File Origin
# of uploads :
2
# of downloads :
168
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
RFQ.doc__.rtf
Verdict:
Malicious activity
Analysis date:
2022-11-13 17:15:03 UTC
Tags:
exploit cve-2017-11882 loader formbook trojan stealer
Link:
https://app.any.run/tasks/5fba5876-559f-40ee-bf12-3fe1bfa6efac

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
TwinWave.EvilDoc.PKILLLureTextKingOfWishfulThinking.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Searching for synchronization primitives
Launching a process
Creating a window
Creating a file in the %AppData% directory
Sending a custom TCP request
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/b13ad44ebdbdc53068e26d7aa84805bc1a4550a37c750ed726aee47cd692bb7a/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/637125a020a0b4943a8f3da8/reports/af2fe722-072a-4cf1-8a36-5de61a2380bf/overview
Result
Verdict:
MALICIOUS
Result
Threat name:
Unknown
Detection:
malicious
Classification:
n/a
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1112352
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b13ad44ebdbdc53068e26d7aa84805bc1a4550a37c750ed726aee47cd692bb7a/
Threat name:
Document-OLE.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2022-11-13 13:48:00 UTC
File Type:
Document
Extracted files:
3
AV detection:
15 of 42 (35.71%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=we5nitv5xxcta2hcnv5kqsafxqnekufdpr2q5vzgv3shzvusxn5a._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ua69 rat spyware stealer trojan
Link:
https://tria.ge/reports/221113-vrdz1sbh84/
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
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/9f734133-faa1-4592-b544-a237e7d21333
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b13ad44ebdbd/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/b13ad44ebdbdc53068e26d7aa84805bc1a4550a37c750ed726aee47cd692bb7a

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_EXPLOIT_CVE_2017_11882_4
Create hunting rule
Author:ditekSHen
Description:detects RTF variant documents potentially exploiting CVE-2018-0802 or CVE-2017-11882
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.

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