MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0875d852719a6d039ce8697fa09f715a5bcb73f9197ed11a6542eb9f708bdab4. 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: 7


Intelligence 7 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0875d852719a6d039ce8697fa09f715a5bcb73f9197ed11a6542eb9f708bdab4
SHA3-384 hash: 15034bf246464adccaf329b16986fb08c07db7775edfc9a8eef456dc915138c9bcd90e8b80a94aa8a43834522d47acad
SHA1 hash: daa83e58b189ebd6b21f7b5d35b15f80b2162129
MD5 hash: 922ba49e353c2a9a8905fafdc731b165
humanhash: king-lamp-queen-single
File name:PAYMENT_ADVICE.xlsm
Download: download sample
Signature Formbook
Create hunting rule
File size:120'366 bytes
First seen:2020-08-04 14:42:55 UTC
Last seen:2020-08-04 15:56:39 UTC
File type:Excel file xlsm
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 3072:MqeYVepuW3riUK34o/6AIFjRSa7XFlS+6cg2TgXeSU1xJN:MrqA9rizojjVlUcBuSN
TLSH 98C3125D7E88B801CE9EAAF6D33EC5DC6431A301D455D40B62F5B03C90C2E6C2E67A6E
Reporter abuse_ch
Tags:FormBook HSBC xlsm


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: slot0.ilerpic.com
Sending IP: 104.168.176.234
From: HSBC Advising Service <advising.service.6898763332222@mail.hsbcnet.hsbc.com>
Subject: Payment Advice - Advice Ref:[HSB9122000] / Priority payment /Customer Ref:[000011755522]
Attachment: PAYMENT_ADVICE.xlsm

Formbook payload URL:
http://koqfkrjg.wze.io/sql/nngvfd.exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
86
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Heur.Macro.Generic.h.89ecc0e6.25749.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Creating a file
Creating a file in the %temp% directory
Launching a process
Launching cmd.exe command interpreter
Deleting a recently created file
Launching the default Windows debugger (dwwin.exe)
Sending an HTTP GET request
Unauthorized injection to a recently created process by context flags manipulation
Creating a process from a recently created file
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/409619
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
Document exploit detected (creates forbidden files)
Document exploit detected (drops PE files)
Document exploit detected (process start blacklist hit)
Drops PE files to the user root directory
Injects a PE file into a foreign processes
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)
Office process drops PE file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Executables Started in Suspicious Folder
Sigma detected: Execution in Non-Executable Folder
Sigma detected: MS Office Product Spawning Exe in User Dir
Sigma detected: Suspicious Program Location Process Starts
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 257078 Sample: PAYMENT_ADVICE.xlsm Startdate: 04/08/2020 Architecture: WINDOWS Score: 100 55 Malicious sample detected (through community Yara rule) 2->55 57 Document exploit detected (drops PE files) 2->57 59 Yara detected FormBook 2->59 61 8 other signatures 2->61 11 EXCEL.EXE 32 38 2->11         started        process3 dnsIp4 47 koqfkrjg.wze.io 23.254.229.148, 49738, 80 HOSTWINDSUS United States 11->47 39 C:\Users\user\AppData\Local\...\nngvfd[1].exe, PE32 11->39 dropped 41 C:\Users\Public\xwlfadfrs.exe, PE32 11->41 dropped 77 Document exploit detected (creates forbidden files) 11->77 79 Document exploit detected (process start blacklist hit) 11->79 16 xwlfadfrs.exe 4 11->16         started        file5 signatures6 process7 file8 37 C:\Users\user\AppData\...\AddInProcess32.exe, PE32 16->37 dropped 49 Writes to foreign memory regions 16->49 51 Allocates memory in foreign processes 16->51 53 Injects a PE file into a foreign processes 16->53 20 AddInProcess32.exe 16->20         started        23 AddInProcess32.exe 16->23         started        signatures9 process10 signatures11 63 Modifies the context of a thread in another process (thread injection) 20->63 65 Maps a DLL or memory area into another process 20->65 67 Sample uses process hollowing technique 20->67 69 2 other signatures 20->69 25 explorer.exe 20->25 injected process12 dnsIp13 43 www.salonyk.site 25->43 45 www.blackhawkinnovation.com 25->45 28 msiexec.exe 25->28         started        31 msdt.exe 25->31         started        process14 signatures15 71 Modifies the context of a thread in another process (thread injection) 28->71 73 Maps a DLL or memory area into another process 28->73 75 Tries to detect virtualization through RDTSC time measurements 28->75 33 cmd.exe 1 28->33         started        process16 process17 35 conhost.exe 33->35         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0875d852719a6d039ce8697fa09f715a5bcb73f9197ed11a6542eb9f708bdab4/
Threat name:
Script.Downloader.Donoff
Create hunting rule
Status:
Malicious
First seen:
2020-08-04 14:44:06 UTC
AV detection:
16 of 29 (55.17%)
Threat level:
  3/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=bb25qutrtjwqhhhinf72bh3rljn4w47zdf7ncgtfilvz64el3k2a._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat evasion trojan spyware stealer family:formbook
Link:
https://tria.ge/reports/200804-wrfzgnvtg6/
Behaviour
Suspicious behavior: AddClipboardFormatListener
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Office loads VBA resources, possible macro or embedded object present
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Loads dropped DLL
Executes dropped EXE
Formbook Payload
Formbook
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/0875d852719a6d039ce8697fa09f715a5bcb73f9197ed11a6542eb9f708bdab4

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:Formbook
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:SharedStrings
Create hunting rule
Author:Katie Kleemola
Description:Internal names found in LURK0/CCTV0 samples
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

Malspam

Formbook

Excel file xlsm 0875d852719a6d039ce8697fa09f715a5bcb73f9197ed11a6542eb9f708bdab4

(this sample)

Formbook

Executable exe 5bd5a94befaf51c0702273d144aa5d31fc88e7f677ea33ea98408450e1b535d7

  
URLhaus
https://urlhaus.abuse.ch/url/424344/
  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 5bd5a94befaf51c0702273d144aa5d31fc88e7f677ea33ea98408450e1b535d7
  
Dropping
MD5 43f55a44785d0791c35b997b20a9c8bf

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