MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f81cf230ed6e4a685e6365a8f65c80b996de3614be72d2baaf0175ec9077ecc6. 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: 6


Intelligence 6 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f81cf230ed6e4a685e6365a8f65c80b996de3614be72d2baaf0175ec9077ecc6
SHA3-384 hash: 8ed6be8e5d2606ad88e55343b21ea7a2c590748c2f8bcc547be996fd13fe08c89e7fa6c53eabe3dcc6bbd5816107f8cd
SHA1 hash: 39023d92fad48dd876dbf363e923667cc5c3a8fb
MD5 hash: 0203cea44f35e85f238d174c5f6da56a
humanhash: may-india-solar-wyoming
File name:NEW ORDER.xlsx
Download: download sample
Signature Formbook
Create hunting rule
File size:621'568 bytes
First seen:2020-08-13 08:19:37 UTC
Last seen:Never
File type:Excel file xlsx
MIME type:application/encrypted
ssdeep 12288:uzTKc3nHghcXQZUVZdHVp1Yx9R00SoW7vTTkcm5avY9/kM4a1:uV3HghSQ6rd1p1in00sv/HQka
TLSH CED4234435E81FB3E70E077AA885611F85EBBD498E08F86B774476ADB2F4D364AC4053
Reporter abuse_ch
Tags:CVE-2017-11882 FormBook xlsx


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: eazymail.cloudissp.com
Sending IP: 202.6.21.19
From: SHANGHAI CHANCO ENTERPRISE DEVELOPMENT CO.,LTD <sunkeke@quanke.com>
Subject: NEW ORDER FOR SHIPMENT TO CHINA...
Attachment: NEW ORDER.xlsx

Formbook payload URL:
http://kungwsdycommunicationtarisupliermg43rax.duckdns.org/kungdoc/winlog.exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
70
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
PUA.Doc.Packed.EncryptedDoc-6563700-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
DNS request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Creating a file
Creating a file in the %AppData% subdirectories
Launching the default Windows debugger (dwwin.exe)
Sending an HTTP GET request
Launching a file downloaded from the Internet
Creating a process from a recently created file
Result
Threat name:
Unknown
Detection:
malicious
Classification:
n/a
Score:
48 / 100
Link:
https://www.joesandbox.com/analysis/425449
Signature
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Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 265291 Sample: NEW ORDER.xlsx Startdate: 14/08/2020 Architecture: WINDOWS Score: 48 12 Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros) 2->12 6 EXCEL.EXE 150 43 2->6         started        8 mspaint.exe 27 2 2->8         started        process3 process4 10 splwow64.exe 6->10         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f81cf230ed6e4a685e6365a8f65c80b996de3614be72d2baaf0175ec9077ecc6/
Threat name:
Document-Office.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2020-08-13 00:46:40 UTC
AV detection:
16 of 29 (55.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7aopemhnnzfgqxtdmwupmxeaxgln4nquxzznfovpaf26zedx5tda._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/200813-gnhvbvx6wa/
Behaviour
Launches Equation Editor
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Program crash
Drops file in Program Files directory
Loads dropped DLL
Uses the VBS compiler for execution
Blacklisted process makes network request
Executes dropped EXE
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Exploit
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f81cf230ed6e4a685e6365a8f65c80b996de3614be72d2baaf0175ec9077ecc6

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:SharedStrings
Create hunting rule
Author:Katie Kleemola
Description:Internal names found in LURK0/CCTV0 samples

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Excel file xlsx f81cf230ed6e4a685e6365a8f65c80b996de3614be72d2baaf0175ec9077ecc6

(this sample)

FormBook

Executable exe 60952b7b0b3edeb47b07f1d2a0fb87856b165550e47c605c4ef4fb1da699a332

  
URLhaus
https://urlhaus.abuse.ch/url/431683/
  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 60952b7b0b3edeb47b07f1d2a0fb87856b165550e47c605c4ef4fb1da699a332
  
Dropping
MD5 2f7fc0ad5ebe2369e82cedf686e36ba2

Comments