MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e8d2e0e756b4777c3055ad694a9f0424b92f7a07610e347061b76feeb4ecc524. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e8d2e0e756b4777c3055ad694a9f0424b92f7a07610e347061b76feeb4ecc524
SHA3-384 hash: c1a477a9246ce7f4fb952ba6ccc724f386e1a526332c86891c365298e4baa2ea369a23827772b551401658d48f7f1f4b
SHA1 hash: af7cc5b4a50095809dfa2eb7b132c53c6d4277c6
MD5 hash: e07e2a03cebef899c5f9ad1e17e1a93c
humanhash: steak-glucose-saturn-video
File name:na
Download: download sample
Signature Formbook
Create hunting rule
File size:2'041'045 bytes
First seen:2024-10-27 12:47:34 UTC
Last seen:Never
File type:Word file doc
MIME type:text/plain
ssdeep 6144:DwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAh:F
TLSH T1FB950B2DD34B02598F620277AB571E5142BDBB7EF38552A1302C537933EAC3DA1252BE
Magika rtf
Reporter abuse_ch
Tags:CVE-2017-11882 doc FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
392
Origin country :
DE DE
Vendor Threat Intelligence
Verdict:
Legit
File type:
application/msword
Has a screenshot:
False
Contains macros:
False
Detection(s):
Sanesecurity.Malware.27333.RtfHeur.BadVer.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.FakeRTF-1.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.26244.RtfHeur.UNOFFICIAL
Create hunting rule

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

MiscreantPunch.RTF.EvilRTF.CVE-2017-0199-Obfus.UNOFFICIAL
Create hunting rule

MiscreantPunch.EvilRTF.CommonLure.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.RTFFakeVersionWithObjUpdateUKSurfMix.20200514.UNOFFICIAL
Create hunting rule

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

Verdict:
Malicious
Score:
90.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=671e3ae75928ee28d55e5a2c
Tags:
Remo
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Using the Windows Management Instrumentation requests
Result
Verdict:
Malicious
File Type:
Fake RTF File
Link:
https://app.docguard.net/e8d2e0e756b4777c3055ad694a9f0424b92f7a07610e347061b76feeb4ecc524/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
embedequation exploit packed shellcode
Link:
https://www.filescan.io/uploads/671e370b6c05056815e0dc5a/reports/f0cffcd7-dcbc-4f2f-af3f-75a09513339c/overview
Verdict:
Malicious
Labled as:
CVE-2018-0798
Link:
https://www.hybrid-analysis.com/sample/e8d2e0e756b4777c3055ad694a9f0424b92f7a07610e347061b76feeb4ecc524
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/1543256
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Document exploit detected (process start blacklist hit)
Initial sample is an obfuscated RTF file
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)
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)
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: Equation Editor Network Connection
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Suspicious Binary In User Directory Spawned From Office Application
Sigma detected: Suspicious Microsoft Office Child Process
Suricata IDS alerts for network traffic
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/e8d2e0e756b4777c3055ad694a9f0424b92f7a07610e347061b76feeb4ecc524
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e8d2e0e756b4777c3055ad694a9f0424b92f7a07610e347061b76feeb4ecc524/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-10-23 10:58:43 UTC
File Type:
Document
Extracted files:
3
AV detection:
14 of 38 (36.84%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5djobz2wwr3xymcvvvuuvhyees4s66qhmehdi4dbw5x65nhmyusa._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
discovery execution
Link:
https://tria.ge/reports/241027-p73enavqfj/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
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
System Location Discovery: System Language Discovery
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
Process spawned unexpected child process
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/73c1675f-e621-4b4c-bd69-90ebfcf9f15c
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/e8d2e0e756b4777c3055ad694a9f0424b92f7a07610e347061b76feeb4ecc524

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: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
Rule name:SUSP_RTF_Header_Anomaly_RID2F7F
Create hunting rule
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.

Web download

Formbook

Word file doc e8d2e0e756b4777c3055ad694a9f0424b92f7a07610e347061b76feeb4ecc524

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3257650/
  
Delivery method
Distributed via web download

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