MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 4022cb6d11ca62e2cb20c84cdd246396fd51699973d84e61a719b888eadac107. 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: 9
| SHA256 hash: | 4022cb6d11ca62e2cb20c84cdd246396fd51699973d84e61a719b888eadac107 |
|---|---|
| SHA3-384 hash: | 978dd05478e68d001f32e9da280b9408b1e5e873bd0a11f8ede143f821097c9898bf73e990f15c3216dea24984f977e9 |
| SHA1 hash: | c1612bcc0675dd272dd2a6434332e8730e10b037 |
| MD5 hash: | c0bca9aece9a2fecfc0aded9ac7b5c7b |
| humanhash: | november-india-table-leopard |
| File name: | document_id.doc |
| Download: | download sample |
| Signature | Formbook |
| File size: | 25'858 bytes |
| First seen: | 2022-04-14 08:09:01 UTC |
| Last seen: | Never |
| File type: |  doc |
| MIME type: | text/plain |
| ssdeep | 768:/cmFsqiEODLZ3n2t/JPLAM0DQFEPuM0ZfPZg2n:G/3n2t/JPLA7QyP4ZfRn |
| TLSH | T1FDC2047DF1870E98CE87D6E8160A3B42154CF52C73D994E637BCDB386A4196B9223D38 |
| Reporter |  proxylife |
| Tags: | CVE-2017-11882 FormBook rtf xloader |
Intelligence
File Origin
# of uploads :
1
# of downloads :
244
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
оферта22.xlsx
Verdict:
Malicious activity
Analysis date:
2022-04-14 07:49:39 UTC
Tags:
encrypted opendir trojan
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/msword
Has a screenshot:
False
Contains macros:
False
Detection(s):
SecuriteInfo.com.Spam-473.UNOFFICIAL
Sanesecurity.Malware.27333.RtfHeur.BadVer.UNOFFICIAL
SecuriteInfo.com.FakeRTF-1.UNOFFICIAL
Sanesecurity.Malware.26244.RtfHeur.UNOFFICIAL
MiscreantPunch.RTF.EvilRTF.CVE-2017-0199-Obfus.UNOFFICIAL
TwinWave.EvilDoc.RTFFakeVersionWithObjUpdateUKSurfMix.20200514.UNOFFICIAL
Sanesecurity.Malware.27333.RtfHeur.BadVer.UNOFFICIAL
SecuriteInfo.com.FakeRTF-1.UNOFFICIAL
Sanesecurity.Malware.26244.RtfHeur.UNOFFICIAL
MiscreantPunch.RTF.EvilRTF.CVE-2017-0199-Obfus.UNOFFICIAL
TwinWave.EvilDoc.RTFFakeVersionWithObjUpdateUKSurfMix.20200514.UNOFFICIAL
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
Adding an access-denied ACE
Using the Windows Management Instrumentation requests
Launching cmd.exe command interpreter
Forced shutdown of a system process
Unauthorized injection to a system process
Sending an HTTP GET request to an infection source by exploiting the app vulnerability
Creating a process from a recently created file
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
control.exe embedequation exploit javascript packed shellcode update.exe
Result
Verdict:
MALICIOUS
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl.evad
Score:
100 / 100
Signature
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Drops PE files to the user root directory
Initial sample is an obfuscated RTF file
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
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 starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Sigma detected: Droppers Exploiting CVE-2017-11882
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: Execution from Suspicious Folder
Sigma detected: File Dropped By EQNEDT32EXE
Behaviour
Behavior Graph:
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Status:
Malicious
First seen:
2022-04-14 08:03:15 UTC
File Type:
Document
Extracted files:
5
AV detection:
17 of 26 (65.38%)
Threat level:
5/5
Result
Malware family:
n/a
Score:
10/10
Tags:
suricata
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
Loads dropped DLL
Uses the VBS compiler for execution
Blocklisted process makes network request
Downloads MZ/PE file
Executes dropped EXE
suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
Malware family:
XLoader
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
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_RTF_Header_Anomaly_RID2F7F |
|---|---|
| Author: | Florian Roth |
| Description: | Detects malformed RTF header often used to trick mechanisms that check for a full RTF header |
| Reference: | https://twitter.com/ItsReallyNick/status/975705759618158593 |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
No further information available
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