MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 da20ddb8f9c542e7c11d119c6fb745f2619caa7b5cd29efa1d0a42de994d873c. 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: 5


Intelligence 5 IOCs YARA 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: da20ddb8f9c542e7c11d119c6fb745f2619caa7b5cd29efa1d0a42de994d873c
SHA3-384 hash: 9b7dbaffcdb09022fb6c51103d131cc75435a65e97017c74f693da513c271eb3dd42981a9a288854eccd5edd86639cfb
SHA1 hash: c43c7773bef5a02a1f16c8718f440252b5c060d9
MD5 hash: 73009e08ab4d8b11bb8bdf6948e038f4
humanhash: apart-emma-single-two
File name:ATTACHED INVOICE.zip
Download: download sample
Signature Formbook
Create hunting rule
File size:269'650 bytes
First seen:2023-02-13 07:59:50 UTC
Last seen:Never
File type: zip
MIME type:application/zip
ssdeep 6144:g/jUb7bnY9SkEYwOIczjMwshTpCkae18NtOMQa8a:grUb/YzEYwOj3MHhTae1g0MbJ
TLSH T1BE44230F0E2E7D4C8FF847DE70C6EDC00516F9142AA6693A9869B25265B8215CD6B0BE
TrID 80.0% (.ZIP) ZIP compressed archive (4000/1)
20.0% (.PG/BIN) PrintFox/Pagefox bitmap (640x800) (1000/1)
Reporter cocaman
Tags:FormBook INVOICE zip


Avatar
cocaman
Malicious email (T1566.001)
From: "<klcochrane@btxglobal.com>" (likely spoofed)
Received: "from hosted-by.rootlayer.net (unknown [45.137.22.136]) "
Date: "11 Feb 2023 08:15:18 +0100"
Subject: "RE;: Haikhanh SOA & Invoices 440086"
Attachment: "ATTACHED INVOICE.zip"

Intelligence

File Origin
# of uploads :
1
# of downloads :
83
Origin country :
n/a
File Archive Information

This file archive contains 1 file(s), sorted by their relevance:

File name:ATTACHED INVOICE.exe
File size:284'418 bytes
SHA256 hash: a21c6c623959c4995842ace85f7f5a7e3751c4930d28ebad92c7a737a7f8cfb8
MD5 hash: 3d734fb96e17397d796961993832b394
MIME type:application/x-dosexec
Signature Formbook
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Foxhole.Zip_fn23.UNOFFICIAL
Create hunting rule

Sanesecurity.Rogue.0hr.20230211-0434.UNOFFICIAL
Create hunting rule

Gathering data
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/da20ddb8f9c542e7c11d119c6fb745f2619caa7b5cd29efa1d0a42de994d873c
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/da20ddb8f9c542e7c11d119c6fb745f2619caa7b5cd29efa1d0a42de994d873c
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/da20ddb8f9c542e7c11d119c6fb745f2619caa7b5cd29efa1d0a42de994d873c/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-02-11 11:49:26 UTC
File Type:
Binary (Archive)
Extracted files:
4
AV detection:
24 of 37 (64.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3iqn3ohzyvbopqi5cgog7n2f6jqzzkt3ltjj56q5bjbn5gknq46a._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
spyware stealer
Link:
https://tria.ge/reports/230213-l3ydcsce27/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Blocklisted process makes network request
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/da20ddb8f9c542e7c11d119c6fb745f2619caa7b5cd29efa1d0a42de994d873c

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:SUSP_Archive_Phishing_Attachment_Characteristics_Jun22_1
Create hunting rule
Author:Florian Roth
Description:Detects characteristics of suspicious file names or double extensions often found in phishing mail attachments
Reference:https://twitter.com/0xtoxin/status/1540524891623014400?s=12&t=IQ0OgChk8tAIdTHaPxh0Vg
Rule name:SUSP_Archive_Phishing_Attachment_Characteristics_Jun22_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects characteristics of suspicious file names or double extensions often found in phishing mail attachments
Reference:https://twitter.com/0xtoxin/status/1540524891623014400?s=12&t=IQ0OgChk8tAIdTHaPxh0Vg
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
Rule name:win_formbook_g0
Create hunting rule
Author:Slavo Greminger, SWITCH-CERT
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

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

Malspam

Formbook

zip da20ddb8f9c542e7c11d119c6fb745f2619caa7b5cd29efa1d0a42de994d873c

(this sample)

Formbook

Executable exe a21c6c623959c4995842ace85f7f5a7e3751c4930d28ebad92c7a737a7f8cfb8

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 a21c6c623959c4995842ace85f7f5a7e3751c4930d28ebad92c7a737a7f8cfb8
  
Dropping
Formbook

Comments