MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ed8e464b52a9d62400ba9b9e39fa37555e4b0db548487f56a5ea89b7bdcf9648. 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


Intelligence 12 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ed8e464b52a9d62400ba9b9e39fa37555e4b0db548487f56a5ea89b7bdcf9648
SHA3-384 hash: 9168122f7d7b2f506f94d59a702471241ff8f6449e189b06af72186568fafaea1b659a6904d6eed5fffd1f7ba658e62c
SHA1 hash: 5e9bebe9b3c3b44f03eb12c9484f7e3f5749c687
MD5 hash: 5b235feb1c1b78d5277c93bd7b0c2e6e
humanhash: island-california-mars-texas
File name:SecuriteInfo.com.Exploit.CVE-2018-0798.4.23906.18593
Download: download sample
Signature Formbook
Create hunting rule
File size:453'068 bytes
First seen:2024-06-20 03:22:15 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 6144:1wAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAlnp/bVl7GR:xpy
TLSH T1BDA49C2DD34F0259CF620277AB561E5142FDBB7AF38552A1302C537933EE83DA1252BA
Reporter SecuriteInfoCom
Tags:CVE-2017-11882 FormBook rtf

Intelligence

File Origin
# of uploads :
1
# of downloads :
108
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ed8e464b52a9d62400ba9b9e39fa37555e4b0db548487f56a5ea89b7bdcf9648.rtf
Verdict:
No threats detected
Analysis date:
2024-06-20 03:23:11 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/163ae18e-305c-41fd-8725-6ed605fafcaf

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
Detection(s):
Sanesecurity.Malware.29015.RtfHeur.Msg.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Exploit.CVE-2018-0798.4.23906.18593.UNOFFICIAL
Create hunting rule

Sanesecurity.Shelter.Malware.BadRtf.ObjUpd.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.RoomService.20230808.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
94.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6673a2060f8138dd4eb0ecc9win7simulatehigh_evasion
Tags:
Network Office Static Stealth
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Using the Windows Management Instrumentation requests
Creating a window
Connection attempt to an infection source by exploiting the app vulnerability
Creating a file in the %AppData% directory
Сreating synchronization primitives
Launching a service
Creating a file
Launching cmd.exe command interpreter
Setting browser functions hooks
Searching for the window
Searching for synchronization primitives
Query of malicious DNS domain
Launching a file downloaded from the Internet
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Sending a TCP request to an infection source by exploiting the app vulnerability
Creating a process from a recently created file
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/ed8e464b52a9d62400ba9b9e39fa37555e4b0db548487f56a5ea89b7bdcf9648/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/6673a098eae3878d8f3a6c02/reports/145047d0-ccf6-4252-b4f1-ae2ade43b18e/overview
Verdict:
Malicious
Labled as:
CVE-2018-0798
Link:
https://www.hybrid-analysis.com/sample/ed8e464b52a9d62400ba9b9e39fa37555e4b0db548487f56a5ea89b7bdcf9648
Result
Verdict:
MALICIOUS
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1459852
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Document exploit detected (process start blacklist hit)
Drops PE files with a suspicious file extension
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
Injects a PE file into a foreign processes
Installs new ROOT certificates
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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 establishes network connection
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Equation Editor Network Connection
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Suspicious Microsoft Office Child Process
Snort IDS alert for network traffic
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1459852 Sample: SecuriteInfo.com.Exploit.CV... Startdate: 20/06/2024 Architecture: WINDOWS Score: 100 42 sfaeew54.n.aliladdos.com 2->42 44 www.7779c1.vip 2->44 46 hvt84xg5.aliladdos.com 2->46 68 Snort IDS alert for network traffic 2->68 70 Multi AV Scanner detection for domain / URL 2->70 72 Found malware configuration 2->72 74 18 other signatures 2->74 12 WINWORD.EXE 291 18 2->12         started        signatures3 process4 process5 14 EQNEDT32.EXE 11 12->14         started        19 EQNEDT32.EXE 12->19         started        dnsIp6 54 covid19help.top 172.67.175.222, 443, 49162 CLOUDFLARENETUS United States 14->54 38 C:\Users\user\AppData\Roaming\obi72811.scr, PE32 14->38 dropped 40 C:\Users\user\AppData\Local\...\obizz[1].scr, PE32 14->40 dropped 56 Office equation editor establishes network connection 14->56 58 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 14->58 21 obi72811.scr 2 8 14->21         started        file7 signatures8 process9 signatures10 76 Multi AV Scanner detection for dropped file 21->76 78 Machine Learning detection for dropped file 21->78 80 Adds a directory exclusion to Windows Defender 21->80 82 3 other signatures 21->82 24 obi72811.scr 21->24         started        27 powershell.exe 4 21->27         started        process11 signatures12 84 Modifies the context of a thread in another process (thread injection) 24->84 86 Maps a DLL or memory area into another process 24->86 88 Sample uses process hollowing technique 24->88 92 2 other signatures 24->92 29 explorer.exe 1 3 24->29 injected 90 Installs new ROOT certificates 27->90 process13 dnsIp14 48 www.ixdye610r.xyz 29->48 50 www.yourwellnesseq.com 29->50 52 17 other IPs or domains 29->52 94 System process connects to network (likely due to code injection or exploit) 29->94 96 Performs DNS queries to domains with low reputation 29->96 33 explorer.exe 29->33         started        signatures15 process16 signatures17 60 Modifies the context of a thread in another process (thread injection) 33->60 62 Maps a DLL or memory area into another process 33->62 64 Tries to detect virtualization through RDTSC time measurements 33->64 66 Found direct / indirect Syscall (likely to bypass EDR) 33->66 36 cmd.exe 33->36         started        process18
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ed8e464b52a9d62400ba9b9e39fa37555e4b0db548487f56a5ea89b7bdcf9648/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-06-20 02:11:41 UTC
File Type:
Document
Extracted files:
3
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5whems2svhlciaf2topdt6rxkvpewdnvjbeh6vvf5ke3ppopszea._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:bi09 execution rat spyware stealer trojan
Link:
https://tria.ge/reports/240620-dxf8wszhll/
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
Executes dropped EXE
Loads dropped DLL
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Downloads MZ/PE file
Formbook payload
Formbook
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e4c02dd7-c8dc-4dde-adcc-37416e1174a5
Please note that we are no longer able to provide a coverage score for Virus Total.

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.

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