MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 50c201f5a6577ba3d171a019f584451486f19d532172790a9cdc6c923fcd983c. 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: 15
| SHA256 hash: | 50c201f5a6577ba3d171a019f584451486f19d532172790a9cdc6c923fcd983c |
|---|---|
| SHA3-384 hash: | 5f4b3536abbbd974302774a4011d475f8ac28fec5941b284443e34d754c274002791d917fbf77a51ad897ace768b870e |
| SHA1 hash: | d8cc6702493d0903cb8cb259109072e1d1b3eb3e |
| MD5 hash: | efb9c84739b1722573de55e574202c46 |
| humanhash: | freddie-echo-network-uranus |
| File name: | efb9c84739b1722573de55e574202c46.rtf |
| Download: | download sample |
| Signature | Formbook |
| File size: | 46'703 bytes |
| First seen: | 2023-07-18 13:06:37 UTC |
| Last seen: | 2023-08-28 14:35:02 UTC |
| File type: |  rtf |
| MIME type: | text/rtf |
| ssdeep | 768:cFx0XaIsnPRIa4fwJMTPmyxcTi9wpN1zEIeEWChbhWCnUqkDLC8JwH:cf0Xvx3EMLRWmcNiqWChbhWCnUqkDL9+ |
| TLSH | T16623B05AE78E02648F9113B7570B5E899ABDB23EB3505171386C933433EDC3E42666BC |
| 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 :
113
Origin country :
NLVendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
efb9c84739b1722573de55e574202c46.rtf
Verdict:
Malicious activity
Analysis date:
2023-07-18 13:11:05 UTC
Tags:
exploit cve-2017-11882 loader formbook xloader
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Legit
File type:
application/rtf
Has a screenshot:
False
Contains macros:
False
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Sending a custom TCP request
Searching for synchronization primitives
Launching a process
Creating a window
Creating a file in the %AppData% directory
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
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
embedequation exploit packed shellcode
Verdict:
Malicious
Labled as:
CVE-2018-0802
Result
Verdict:
MALICIOUS
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
72 / 100
Signature
Antivirus / Scanner detection for submitted sample
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:
Detection:
cve-2017-11882-shellcode
Threat name:
Document-Office.Exploit.CVE-2017-11882
Status:
Malicious
First seen:
2023-07-18 08:45:16 UTC
File Type:
Document
Extracted files:
4
AV detection:
20 of 38 (52.63%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook campaign:ge83 rat spyware stealer trojan
Behaviour
Launches Equation Editor
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Checks processor information in registry
Enumerates system info in registry
Office loads VBA resources, possible macro or embedded object present
Drops file in Windows directory
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
Formbook payload
Formbook
Malware family:
XLoader
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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 |
|---|---|
| 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 |
|---|---|
| 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.
Web download
Delivery method
Distributed via web download
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