MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fb1850a9de283511c3d8cf8c54f2ac8f482281a393c3d25ef37c22e47aa295c5. 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 4 File information Comments

SHA256 hash: fb1850a9de283511c3d8cf8c54f2ac8f482281a393c3d25ef37c22e47aa295c5
SHA3-384 hash: 256e9bcecf478235b1e578382d5dad4474291b73c741d4cb16ee3c700a6252c77035ec766ad224b64eb8c6cd6c938332
SHA1 hash: 546c130abe4994a90aaeb084618cfc3f9d6724de
MD5 hash: 80af84261f1dc5ca1276251b85a70c96
humanhash: six-texas-mountain-september
File name:Invoice 2796.rar
Download: download sample
Signature Formbook
File size:602'350 bytes
First seen:2023-10-03 14:32:51 UTC
Last seen:Never
File type: rar
MIME type:application/x-rar
ssdeep 12288:lZm6QDMWg9eegWPUIHmNrpSfgGtB0DjU++UWaF5N/Fi5xsv2Mf5/SXt6rU:yPwWg9eegbIHmNV8gGIjV+UxN/Fm27o
TLSH T13ED4239BFF89F43D89A76B8418E74B5220C4C207379E17E0CEE9A4C25F50E95B29584F
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: "info@winevouchers.com" (likely spoofed)
Received: "from nerve.winevouchers.com (nerve.winevouchers.com [82.115.209.50]) "
Date: "03 Oct 2023 07:31:46 -0700"
Subject: "Re: Invoice 2796"
Attachment: "Invoice 2796.rar"

Intelligence


File Origin
# of uploads :
1
# of downloads :
111
Origin country :
CH CH
File Archive Information

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

File name:Invoice 2796.exe
File size:696'832 bytes
SHA256 hash: 0dbd5fe8345cdb46f5611862dc31279c99cd60bb4931e6d924f34e84519f35b8
MD5 hash: 356f615eb12a2da9a61483e51a42ceec
MIME type:application/x-dosexec
Signature Formbook
Vendor Threat Intelligence
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.
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Status:
Malicious
First seen:
2023-10-03 06:01:03 UTC
File Type:
Binary (Archive)
Extracted files:
14
AV detection:
19 of 35 (54.29%)
Threat level:
  2/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
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 UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Checks computer location settings
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
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 fb1850a9de283511c3d8cf8c54f2ac8f482281a393c3d25ef37c22e47aa295c5

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments