MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4f6f49d76b427ecd1df55d94a028a143e1f3795c938c0612ec546775395fb130. 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: 13


Intelligence 13 IOCs YARA 29 File information Comments
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SHA256 hash: 4f6f49d76b427ecd1df55d94a028a143e1f3795c938c0612ec546775395fb130
SHA3-384 hash: 26ac231b4a8d32b6ac3b3b21e51be3fed1e4962dfc145b1426a2f1e99e7dac66abf8ddbd3a1f7474a1cfcec769762459
SHA1 hash: f17782e2e94795b082a0147197cbc0b0f6db2665
MD5 hash: 01b290009be560f4e0b0e9bdfae20fcb
humanhash: ceiling-football-eighteen-fourteen
File name:ENCRYPTED.ps1
Download: download sample
Signature Formbook
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File size:934'681 bytes
First seen:2026-01-15 08:35:30 UTC
Last seen:Never
File type:PowerShell (PS) ps1
MIME type:text/plain
ssdeep 24576:7YUavdDHHKf4x+nyiFOHb4g4pEmvrZPo5prLwX/bh4z:7Sl7wvO5YPGBLwXiz
TLSH T1F7152348DCB4EE2D0D7C571460EF5E77EE224F59C4CCA2BA32D1BEA28B1DC5A0541D8A
Magika powershell
Reporter abuse_ch
Tags:FormBook ps1

Intelligence

File Origin
# of uploads :
1
# of downloads :
63
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.Trojan.PowerShell.Agent.19207.11946.UNOFFICIAL
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Verdict:
Malicious
Score:
90.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6968a72157243ef151cd4379
Tags:
ransomware shellcode sage
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
aspnet_compiler base64 evasive lolbin obfuscated obfuscated powershell reconnaissance
Link:
https://www.filescan.io/uploads/6968a6e7ca195a53181bf2da/reports/026bb4ef-f9c0-45b1-9d05-f8e3807a791c/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/4f6f49d76b427ecd1df55d94a028a143e1f3795c938c0612ec546775395fb130
Verdict:
Malicious
File Type:
ps1
First seen:
2026-01-13T07:49:00Z UTC
Last seen:
2026-01-16T23:23:00Z UTC
Hits:
~1000
Detections:
Trojan-Spy.Noon.HTTP.ServerRequest Trojan.Win32.InjectorNetT.s PDM:Trojan.Win32.Generic Backdoor.Agent.HTTP.C&C
Link:
https://opentip.kaspersky.com/4f6f49d76b427ecd1df55d94a028a143e1f3795c938c0612ec546775395fb130/results?tab=lookup
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1851188
Signature
AI detected malicious Powershell script
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Unusual module load detection (module proxying)
Uses ipconfig to lookup or modify the Windows network settings
Uses netstat to query active network connections and open ports
Writes to foreign memory regions
Yara detected FormBook
Yara detected Powershell decode and execute
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1851188 Sample: ENCRYPTED.ps1 Startdate: 15/01/2026 Architecture: WINDOWS Score: 100 45 zhegnzheng.taomsvpfm8z0.com 2->45 47 www.yaksa.tech 2->47 49 13 other IPs or domains 2->49 75 Suricata IDS alerts for network traffic 2->75 77 Found malware configuration 2->77 79 Malicious sample detected (through community Yara rule) 2->79 81 7 other signatures 2->81 11 powershell.exe 22 2->11         started        14 svchost.exe 2->14         started        signatures3 process4 dnsIp5 87 Writes to foreign memory regions 11->87 89 Sample uses process hollowing technique 11->89 91 Injects a PE file into a foreign processes 11->91 17 aspnet_compiler.exe 11->17         started        20 aspnet_compiler.exe 11->20         started        22 aspnet_compiler.exe 11->22         started        24 19 other processes 11->24 59 127.0.0.1 unknown unknown 14->59 signatures6 process7 dnsIp8 61 Modifies the context of a thread in another process (thread injection) 17->61 63 Maps a DLL or memory area into another process 17->63 65 Sample uses process hollowing technique 17->65 67 Queues an APC in another process (thread injection) 17->67 27 explorer.exe 61 1 17->27 injected 51 part-0041.t-0009.t-msedge.net 13.107.213.69, 443, 49684 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 24->51 69 Tries to detect virtualization through RDTSC time measurements 24->69 71 Unusual module load detection (module proxying) 24->71 73 Switches to a custom stack to bypass stack traces 24->73 signatures9 process10 dnsIp11 53 www.nspwealthofficesolutions.info 15.197.162.184, 49697, 80 TANDEMUS United States 27->53 55 www.conferencejwtbts.sbs 104.233.223.161, 49695, 80 PEGTECHINCUS United States 27->55 57 5 other IPs or domains 27->57 93 System process connects to network (likely due to code injection or exploit) 27->93 95 Uses netstat to query active network connections and open ports 27->95 97 Uses ipconfig to lookup or modify the Windows network settings 27->97 31 NETSTAT.EXE 27->31         started        34 help.exe 27->34         started        36 ipconfig.exe 27->36         started        38 10 other processes 27->38 signatures12 process13 signatures14 99 Modifies the context of a thread in another process (thread injection) 31->99 101 Maps a DLL or memory area into another process 31->101 103 Tries to detect virtualization through RDTSC time measurements 31->103 105 Switches to a custom stack to bypass stack traces 31->105 40 cmd.exe 1 31->40         started        107 Unusual module load detection (module proxying) 34->107 process15 signatures16 83 Tries to detect virtualization through RDTSC time measurements 40->83 85 Unusual module load detection (module proxying) 40->85 43 conhost.exe 40->43         started        process17
Score:
99%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/4f6f49d76b427ecd1df55d94a028a143e1f3795c938c0612ec546775395fb130
Verdict:
inconclusive
YARA:
2 match(es)
Tags:
Base64 Block Contains Base64 Block PowerShell
Link:
https://app.malva.re/file/01b290009be560f4e0b0e9bdfae20fcb
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/4f6f49d76b427ecd1df55d94a028a143e1f3795c938c0612ec546775395fb130/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/4f6f49d76b427ecd1df55d94a028a143e1f3795c938c0612ec546775395fb130
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=j5xutv3lij7m2hpvlwkkakfbipq7g6k4sogamexmkrtxkok7weya._file
Verdict:
malicious
Label(s):
formbook
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Similar samples:
error
Formbook
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:n43s discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/260115-khf3xahv5e/
Behaviour
Suspicious use of WriteProcessMemory
Enumerates system info in registry
Gathers network information
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Command and Scripting Interpreter: PowerShell
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4f6f49d76b42/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4f6f49d76b427ecd1df55d94a028a143e1f3795c938c0612ec546775395fb130

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
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Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__GlobalFlags
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
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Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:detect_powershell
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Author:daniyyell
Description:Detects suspicious PowerShell activity related to malware execution
Rule name:dgaagas
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Author:Harshit
Description:Uses certutil.exe to download a file named test.txt
Rule name:Formbook
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Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:golang_bin_JCorn_CSC846
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Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
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Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_stackstrings
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Author:Willi Ballenthin
Rule name:pe_no_import_table
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Description:Detect pe file that no import table
Rule name:RANSOMWARE
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Author:ToroGuitar
Rule name:RIPEMD160_Constants
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Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
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Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:Sus_CMD_Powershell_Usage
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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
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Author:CYFARE
Description:Windows ETW Bypass Detection Rule - 2025
Reference:https://cyfare.net/
Rule name:Windows_Trojan_Formbook
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Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
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Author:Elastic Security
Reference:https://www.elastic.co/security-labs/formbook-adopts-cab-less-approach
Rule name:win_formbook_auto
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Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
Rule name:win_formbook_w0
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Author:@malgamy12

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 4f6f49d76b427ecd1df55d94a028a143e1f3795c938c0612ec546775395fb130

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3758311/
  
Delivery method
Distributed via web download

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