MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 4216dfbe7c803a46e0958e95f24fcbbf14d491e49c47040b068e40893348bf56. 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: 12
| SHA256 hash: | 4216dfbe7c803a46e0958e95f24fcbbf14d491e49c47040b068e40893348bf56 |
|---|---|
| SHA3-384 hash: | 49e5376c1a5795a18e89ebf7b8440a3cd68025c81cdd6e1997973458d7911cb415a5327c496e14c686e9e2d5b5f27875 |
| SHA1 hash: | 110d3a30bffbd490664690b7deec204c5901ecaf |
| MD5 hash: | a19810504567429fee94e77b38f21462 |
| humanhash: | quebec-oregon-idaho-stairway |
| File name: | a19810504567429fee94e77b38f21462 |
| Download: | download sample |
| Signature | Formbook |
| File size: | 15'200 bytes |
| First seen: | 2022-10-06 06:27:00 UTC |
| Last seen: | Never |
| File type: |  rtf |
| MIME type: | text/rtf |
| ssdeep | 192:F9LGCrtg89QSh7++qhsJgwgCEth4agn3sKZv3F5eZ18DtSGe/kSe+Lh/88mrIV5j:fLGEBh7++q6MKhK8Dt1diVU8mA5cMod0 |
| TLSH | T17E623A3EF28B8E9CCB47D3D4010A3B822568F80C93D994E6A7FCF734694595F9222934 |
| Reporter |  zbetcheckin |
| Tags: | CVE-2017-11882 FormBook rtf |
Intelligence
File Origin
# of uploads :
1
# of downloads :
173
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Searching for synchronization primitives
Launching a process
Creating a window
Сreating synchronization primitives
Result
Verdict:
Malicious
File Type:
RTF File
Behaviour
BlacklistAPI detected
Verdict:
No Threat
Threat level:
10/10
Confidence:
100%
Result
Verdict:
MALICIOUS
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Drops PE files to the user root directory
Encrypted powershell cmdline option found
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
Uses netsh to modify the Windows network and firewall settings
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected FormBook
Behaviour
Behavior Graph:
Detection:
formbook
Threat name:
Document-Office.Exploit.CVE-2017-11882
Status:
Malicious
First seen:
2022-10-04 15:42:08 UTC
File Type:
Document
Extracted files:
6
AV detection:
17 of 41 (41.46%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook campaign:bi0n persistence rat spyware stealer trojan
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
Enumerates physical storage devices
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Uses the VBS compiler for execution
Blocklisted process makes network request
Downloads MZ/PE file
Executes dropped EXE
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
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: | pdb_YARAify |
|---|---|
| Author: | @wowabiy314 |
| Description: | PDB |
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
Comments
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You need to login to in order to write a comment. Login with your abuse.ch account.url : hxxp://document_docs@107.175.193.183/uuuuUASDbjasduhuasduyuASHUDHUSADHUASDU/jjjhjjhjhjhhggftftftftftftf.doc