MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 af5a401ad1b885562640ee6206f950bfb9f7de9ca3df0e43df834a8cdc9d6f56. 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



Threat unknown


Vendor detections: 6


Intelligence 6 IOCs YARA 3 File information Comments

SHA256 hash: af5a401ad1b885562640ee6206f950bfb9f7de9ca3df0e43df834a8cdc9d6f56
SHA3-384 hash: e5ba2e26baa45ce55a2ac4c962a90446bcadb4c992867d39824927c8bd2b44b5797a2ed343c8ef59a2c8cd7b3f744639
SHA1 hash: 18b25a6fb8d3537e319ef233105561bd462f333f
MD5 hash: 4651a850bd487ca165f5661d429b5995
humanhash: beryllium-wyoming-eleven-twelve
File name:NotaFiscal.msi
Download: download sample
File size:808'176 bytes
First seen:2021-12-15 09:16:07 UTC
Last seen:2021-12-15 11:23:13 UTC
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 12288:bWwufY8owv43bqKlRH1Vq9iyXUAV2Hyeqcb1kF1kF1kG:bWwOY8owvitjVqoAUAUKFKFKG
Threatray 104 similar samples on MalwareBazaar
TLSH T1F205AE12B3D9C936D4BB46706D3A8B5A9639BC644BB1C0EF13C46A1D1E736C05B31FA2
Reporter abuse_ch
Tags:msi

Intelligence


File Origin
# of uploads :
2
# of downloads :
102
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
80%
Tags:
packed packed sload
Result
Verdict:
SUSPICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Hidden Macro 4.0
Detection:
malicious
Classification:
troj.expl.evad
Score:
88 / 100
Signature
Connects to a pastebin service (likely for C&C)
Detected VMProtect packer
Hides threads from debuggers
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
Overwrites code with unconditional jumps - possibly settings hooks in foreign process
Sigma detected: Execution from Suspicious Folder
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Tries to evade analysis by execution special instruction which cause usermode exception
Yara detected hidden Macro 4.0 in Excel
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 540179 Sample: NotaFiscal.msi Startdate: 15/12/2021 Architecture: WINDOWS Score: 88 44 www.imagemhost.com.br 2->44 46 googlehosted.l.googleusercontent.com 2->46 48 5 other IPs or domains 2->48 52 Multi AV Scanner detection for dropped file 2->52 54 Detected VMProtect packer 2->54 56 May check the online IP address of the machine 2->56 58 6 other signatures 2->58 8 msiexec.exe 79 34 2->8         started        11 msiexec.exe 2 2->11         started        signatures3 process4 file5 24 C:\Windows\Installer\61920a.msi, Composite 8->24 dropped 26 C:\Windows\Installer\619207.msi, Composite 8->26 dropped 28 C:\Windows\Installer\MSI9B31.tmp, PE32 8->28 dropped 30 3 other files (none is malicious) 8->30 dropped 13 msiexec.exe 1 20 8->13         started        process6 dnsIp7 50 www.featherlitefurniture.com 45.118.134.118, 443, 49752, 49754 LINODE-APLinodeLLCUS Japan 13->50 32 C:\Users\user\AppData\...\ASWRFGRGETRH[1].mp4, PE32 13->32 dropped 34 C:\Users\Public\Downloads\libcurl.dll, PE32 13->34 dropped 36 C:\Users\Public\...\6Y   W NC DENM C5 Z4.exe, PE32 13->36 dropped 38 5 other files (none is malicious) 13->38 dropped 17 6Y   W NC DENM C5 Z4.exe 2 5 13->17         started        file8 process9 dnsIp10 40 ip-api.com 208.95.112.1, 49790, 80 TUT-ASUS United States 17->40 42 pastebin.com 104.23.99.190, 443, 49784 CLOUDFLARENETUS United States 17->42 22 C:\Users\...\qDG2gBA9hTD3eTH5dMA4hWE4.exe, PE32 17->22 dropped 60 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 17->60 62 Hides threads from debuggers 17->62 file11 signatures12
Threat name:
Script-JS.Downloader.SLoad
Status:
Malicious
First seen:
2021-12-15 09:17:10 UTC
File Type:
Binary (Archive)
Extracted files:
58
AV detection:
11 of 28 (39.29%)
Threat level:
  3/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
persistence vmprotect
Behaviour
Modifies Internet Explorer settings
Modifies registry class
Script User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Adds Run key to start application
Enumerates connected drives
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Checks computer location settings
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
Executes dropped EXE
VMProtect packed file
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:Excel_Hidden_Macro_Sheet
Rule name:Excel_Hidden_Macro_Sheet
Rule name:suspicious_msi_file
Author:Johnk3r
Description:Detects common strings, DLL and API in Banker_BR

File information


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

Malspam

Microsoft Software Installer (MSI) msi af5a401ad1b885562640ee6206f950bfb9f7de9ca3df0e43df834a8cdc9d6f56

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments