MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 052b4d533242ce95c966f10dd14c3c8105cfe3cc0f5ea7dd851443c4079f5a21. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 052b4d533242ce95c966f10dd14c3c8105cfe3cc0f5ea7dd851443c4079f5a21
SHA3-384 hash: 3929855b5bc19659e97c0ce84744f1225e985a715890dbc08dde0213ee116742b73b5aea7f9b6a88caec736653e18af7
SHA1 hash: 5554b02eccd62f81019a345f2b01b81bfeece68d
MD5 hash: 25fdb64c42d6f95911ecad2ca0ac5b30
humanhash: bulldog-kitten-solar-william
File name:Proforma Invoice_xlsx.rar
Download: download sample
Signature Formbook
Create hunting rule
File size:555'061 bytes
First seen:2023-08-18 08:33:58 UTC
Last seen:Never
File type: rar
MIME type:application/x-rar
ssdeep 12288:XXxf9bJJf6//2uQKHQMnuW39Cg+NCnXMhEp0iNOlVN:nxf9bvG/nwMnuW39Cj88ziNOJ
TLSH T149C423C21A86D68A2781F0540B4C892A3E733D5674C1DE4E0F48D5A3FEFB760AB656C7
TrID 61.5% (.RAR) RAR compressed archive (v5.0) (8000/1)
38.4% (.RAR) RAR compressed archive (gen) (5000/1)
Reporter cocaman
Tags:FormBook INVOICE rar


Avatar
cocaman
Malicious email (T1566.001)
From: "Naoto Fukumasu <info@dwappu.com>" (likely spoofed)
Received: "from erwinville.dwappu.com (erwinville.dwappu.com [88.209.206.114]) "
Date: "17 Aug 2023 11:19:33 -0700"
Subject: "RE: Revised Proforma Invoice"
Attachment: "Proforma Invoice_xlsx.rar"

Intelligence

File Origin
# of uploads :
1
# of downloads :
94
Origin country :
CH CH
File Archive Information

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

File name:Proforma Invoice_xlsx.exe
File size:599'040 bytes
SHA256 hash: 4588c6ac02ddd81f8315af2307ec516f58400c555ecd74944a77964fbdd992c1
MD5 hash: d18f7d5b06eb88a6be5bfa39f6aa3cfa
MIME type:application/x-dosexec
Signature Formbook
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Suspected-exe-in-RAR.UNOFFICIAL
Create hunting rule

Result
Verdict:
Unknown
File Type:
PE File
Link:
https://app.docguard.net/052b4d533242ce95c966f10dd14c3c8105cfe3cc0f5ea7dd851443c4079f5a21/results/dashboard
Gathering data
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/052b4d533242ce95c966f10dd14c3c8105cfe3cc0f5ea7dd851443c4079f5a21
Result
Verdict:
MALICIOUS
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/052b4d533242ce95c966f10dd14c3c8105cfe3cc0f5ea7dd851443c4079f5a21/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-08-17 09:29:29 UTC
File Type:
Binary (Archive)
Extracted files:
10
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=auvu2uzsilhjlslg6eg5ctb4qec47y6mb5pkpxmfcrb4ib47liqq._file
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/052b4d533242ce95c966f10dd14c3c8105cfe3cc0f5ea7dd851443c4079f5a21

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:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

Formbook

rar 052b4d533242ce95c966f10dd14c3c8105cfe3cc0f5ea7dd851443c4079f5a21

(this sample)

Formbook

Executable exe 4588c6ac02ddd81f8315af2307ec516f58400c555ecd74944a77964fbdd992c1

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 4588c6ac02ddd81f8315af2307ec516f58400c555ecd74944a77964fbdd992c1
  
Dropping
Formbook

Comments