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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 333f0b85517d297c1693629f3202797b6b82a246ecbdff2ab08a025fd5bf54fe. 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: 11


Intelligence 11 IOCs YARA 17 File information Comments

SHA256 hash: 333f0b85517d297c1693629f3202797b6b82a246ecbdff2ab08a025fd5bf54fe
SHA3-384 hash: 22972f67aa1a95738d947b48e865b9a103d3d88a376739a39d407b7a0ad3a123e97f4409b6dacc2c09e9506cbae046db
SHA1 hash: 1754541a92ba54fdf4988b8c77395e57d6375d7e
MD5 hash: 9817463f917af0832e3098b4b4ae4119
humanhash: xray-florida-michigan-oregon
File name:OJCRYPTED_STUB.ps1
Download: download sample
Signature Formbook
File size:2'232'665 bytes
First seen:2026-09-23 08:18:17 UTC
Last seen:Never
File type:PowerShell (PS) ps1
MIME type:text/plain
ssdeep 24576:Yk92+5rS2V2lM6rJa9BJr5qGZwvW7KI0cmvyJYxGaAXdbhkVL6SYoUvPO:W
TLSH T179A5B8D8A2503DCBA1CF0AD6D6E6BF23E1794A81EA80D70F51D5718E998F351EF1D408
Magika powershell
Reporter abuse_ch
Tags:FormBook ps1

Intelligence


File Origin
# of uploads :
1
# of downloads :
72
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
aspnet_compiler base64 base64 encrypted evasive exploit lolbin obfuscated reconnaissance
Verdict:
Malicious
File Type:
ps1
First seen:
2026-09-21T23:51:00Z UTC
Last seen:
2026-09-24T18:30:00Z UTC
Hits:
~10
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Found direct / indirect Syscall (likely to bypass EDR)
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Unusual module load detection (module proxying)
Writes to foreign memory regions
Yara detected FormBook
Yara detected Powershell decode and execute
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1976597 Sample: OJCRYPTED_STUB.ps1 Startdate: 23/09/2026 Architecture: WINDOWS Score: 100 32 www.4526611.xyz 2->32 34 yinhe2.top 2->34 36 21 other IPs or domains 2->36 44 Suricata IDS alerts for network traffic 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Multi AV Scanner detection for submitted file 2->48 52 5 other signatures 2->52 10 powershell.exe 20 2->10         started        signatures3 50 Performs DNS queries to domains with low reputation 32->50 process4 signatures5 62 Writes to foreign memory regions 10->62 64 Injects a PE file into a foreign processes 10->64 13 aspnet_compiler.exe 10->13         started        16 aspnet_compiler.exe 10->16         started        18 conhost.exe 10->18         started        20 31 other processes 10->20 process6 signatures7 66 Modifies the context of a thread in another process (thread injection) 13->66 68 Maps a DLL or memory area into another process 13->68 70 Queues an APC in another process (thread injection) 13->70 72 Found direct / indirect Syscall (likely to bypass EDR) 13->72 22 ZK2rojLR31sle.exe 13->22 injected 74 Unusual module load detection (module proxying) 16->74 76 Switches to a custom stack to bypass stack traces 16->76 process8 process9 24 w32tm.exe 13 22->24         started        signatures10 54 Tries to steal Mail credentials (via file / registry access) 24->54 56 Tries to harvest and steal browser information (history, passwords, etc) 24->56 58 Modifies the context of a thread in another process (thread injection) 24->58 60 3 other signatures 24->60 27 VOVCAeZsjECrPR.exe 24->27 injected 30 firefox.exe 24->30         started        process11 dnsIp12 38 2.59.170.19, 49763, 49764, 49765 WORLDSTREAMNL Netherlands 27->38 40 4526611.xyz 199.188.201.235, 49759, 49760, 49761 NAMECHEAP-NET-NamecheapIncUS United States 27->40 42 11 other IPs or domains 27->42
Verdict:
inconclusive
YARA:
1 match(es)
Tags:
PowerShell T1059.001
Threat name:
Win32.Backdoor.FormBook
Status:
Malicious
First seen:
2026-09-22 08:51:44 UTC
File Type:
Text (PowerShell)
AV detection:
14 of 38 (36.84%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook adware collection discovery execution rat spyware stealer trojan
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
Command and Scripting Interpreter: PowerShell
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
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:RANSOMWARE
Author:ToroGuitar
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/

File information


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

Web download

Formbook

PowerShell (PS) ps1 333f0b85517d297c1693629f3202797b6b82a246ecbdff2ab08a025fd5bf54fe

(this sample)

  
Delivery method
Distributed via web download

Comments