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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fdde7fa1dde042ba96b0b5fa15c730c00f3d4b388d446e8bfcf1052541d61e15. 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: 9


Intelligence 9 IOCs YARA 17 File information Comments

SHA256 hash: fdde7fa1dde042ba96b0b5fa15c730c00f3d4b388d446e8bfcf1052541d61e15
SHA3-384 hash: f17f6d0e7c5520a9fa96220bdd002ab97a4d606c70e4486d194b0e0038ddb303a844d0f8243611fbacacf9e7c850d00e
SHA1 hash: 68f597b9cdea2bd17c9d2a3ec2f7f7fa4959bda1
MD5 hash: fc867b671e76ef2ac9c6fc0254512b24
humanhash: east-football-july-pluto
File name:ps_8vqxeUDRhcrJ_1776330226089.ps1
Download: download sample
Signature Formbook
File size:1'536'567 bytes
First seen:2026-04-25 19:57:04 UTC
Last seen:Never
File type:PowerShell (PS) ps1
MIME type:text/plain
ssdeep 24576:vIU+WJxI4CmK5f+xdgzgDQFooyLFH/WKx2ehZyoYAF1waNCdy:UBtq8/y1/WGgezp
TLSH T13E653324DDDA3975536CF3A101366FDF5EB28B919815D28B4BE6285B036BB09C2F780C
Magika powershell
Reporter BastianHein
Tags:FormBook ps1

Intelligence


File Origin
# of uploads :
1
# of downloads :
118
Origin country :
CL CL
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
81.4%
Tags:
vmdetect virus spawn
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
aes anti-vm aspnet_compiler base64 crypto encrypted evasive lolbin obfuscated obfuscated packed powershell reconnaissance
Gathering data
Threat name:
Script-PowerShell.Backdoor.FormBook
Status:
Malicious
First seen:
2026-04-17 01:01:00 UTC
File Type:
Text
AV detection:
12 of 38 (31.58%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook adware defense_evasion discovery execution rat spyware stealer trojan
Behaviour
Delays execution with timeout.exe
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: PowerShell
System Location Discovery: System Language Discovery
ConfuserEx .NET packer
Suspicious use of SetThreadContext
Badlisted process makes network request
Family: Formbook
Formbook payload
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:CP_Script_Inject_Detector
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__GlobalFlags
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:dgaagas
Author:Harshit
Description:Uses certutil.exe to download a file named test.txt
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:pe_no_import_table
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:Sus_CMD_Powershell_Usage
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:TH_Win_ETW_Bypass_2025_CYFARE
Author:CYFARE
Description:Windows ETW Bypass Detection Rule - 2025
Reference:https://cyfare.net/
Rule name:vmdetect
Author:nex
Description:Possibly employs anti-virtualization techniques

File information


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

Comments