MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 da454ebae3e171d8adb872f940d08d614cabfea8bd9a340def597abaf5a90879. 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: 10


Intelligence 10 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: da454ebae3e171d8adb872f940d08d614cabfea8bd9a340def597abaf5a90879
SHA3-384 hash: 36f90413afd63057bb92628bcafee20a9f506c0a5db54ab8012cecde93e7def29c235c2cb6bff6d75bf8c26e035048d6
SHA1 hash: f22d5d598dc5ce1bb2ad5b60bd1bbff2c90353c0
MD5 hash: e5b15bb99cd13615fef21f002a79bb16
humanhash: saturn-twelve-pip-hawaii
File name:sird.ps1
Download: download sample
Signature Formbook
Create hunting rule
File size:2'192'976 bytes
First seen:2025-10-22 12:55:36 UTC
Last seen:Never
File type:PowerShell (PS) ps1
MIME type:text/plain
ssdeep 24576:aUA9Rr6O1N9OoNm6lnArTaz6oT5k7arglS5uav6mhbsaXzmQyBJ45XNK78wO0/R/:F
TLSH T1EDA5AFF876047DD6666F566BDE96ACDC03B627239ACBA4CC8064B7C305A3375FE02805
Magika powershell
Reporter abuse_ch
Tags:FormBook ps1

Intelligence

File Origin
# of uploads :
1
# of downloads :
89
Origin country :
SE SE
Vendor Threat Intelligence
Verdict:
Clean
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68f8d4533edd081eba40bbe0
Tags:
n/a
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm aspnet_compiler base64 evasive krypt lolbin obfuscated reconnaissance
Link:
https://www.filescan.io/uploads/68f8d4c53a79800405f0f02d/reports/541260b5-4ec0-4d93-9d42-1fd5b4a5aa93/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/da454ebae3e171d8adb872f940d08d614cabfea8bd9a340def597abaf5a90879
Verdict:
Malicious
File Type:
ps1
First seen:
2025-10-21T15:42:00Z UTC
Last seen:
2025-10-24T09:56:00Z UTC
Hits:
~10
Detections:
PDM:Trojan.Win32.Generic Trojan-Spy.Win32.Noon.sb Trojan.Win32.Agent.sb Trojan.PowerShell.Agent.sb Trojan.PowerShell.Obfuscated.t
Link:
https://opentip.kaspersky.com/da454ebae3e171d8adb872f940d08d614cabfea8bd9a340def597abaf5a90879/results?tab=lookup
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1799808
Signature
AI detected malicious Powershell script
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)
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: 1799808 Sample: sird.ps1 Startdate: 22/10/2025 Architecture: WINDOWS Score: 100 37 www.yieldbfv.xyz 2->37 39 zhcomics.com 2->39 41 13 other IPs or domains 2->41 49 Suricata IDS alerts for network traffic 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Multi AV Scanner detection for submitted file 2->53 57 4 other signatures 2->57 11 powershell.exe 22 2->11         started        signatures3 55 Performs DNS queries to domains with low reputation 37->55 process4 signatures5 67 Writes to foreign memory regions 11->67 69 Injects a PE file into a foreign processes 11->69 14 aspnet_compiler.exe 11->14         started        17 conhost.exe 11->17         started        19 aspnet_compiler.exe 11->19         started        21 12 other processes 11->21 process6 signatures7 71 Maps a DLL or memory area into another process 14->71 23 cLxv6zMjtje.exe 14->23 injected process8 process9 25 resmon.exe 13 23->25         started        signatures10 59 Tries to steal Mail credentials (via file / registry access) 25->59 61 Tries to harvest and steal browser information (history, passwords, etc) 25->61 63 Modifies the context of a thread in another process (thread injection) 25->63 65 3 other signatures 25->65 28 bX4dqexHxD9.exe 25->28 injected 31 chrome.exe 25->31         started        33 firefox.exe 25->33         started        process11 dnsIp12 43 zhcomics.com 162.144.15.77, 49711, 49712, 49713 UNIFIEDLAYER-AS-1US United States 28->43 45 www.xlb13.cn 168.76.255.34, 49731, 49732, 49733 ULTRANETSERVICOSEMINTERNETLTDABR South Africa 28->45 47 10 other IPs or domains 28->47 35 WerFault.exe 4 31->35         started        process13
Score:
97%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/da454ebae3e171d8adb872f940d08d614cabfea8bd9a340def597abaf5a90879
Verdict:
inconclusive
YARA:
1 match(es)
Tags:
PowerShell
Link:
https://app.malva.re/file/e5b15bb99cd13615fef21f002a79bb16
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/da454ebae3e171d8adb872f940d08d614cabfea8bd9a340def597abaf5a90879/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/da454ebae3e171d8adb872f940d08d614cabfea8bd9a340def597abaf5a90879
Threat name:
Script-BAT.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2025-10-21 16:20:38 UTC
File Type:
Text (PowerShell)
AV detection:
11 of 38 (28.95%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3jcu5oxd4fy5rlnyol4ubuenmfgkx7vixwndidpplf5lv5njbb4q._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook adware discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/251022-p662fs1qez/
Behaviour
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
Suspicious use of SetThreadContext
Badlisted process makes network request
Formbook payload
Formbook
Formbook family
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.83
Link:
https://yomi.yoroi.company/submissions/da454ebae3e171d8adb872f940d08d614cabfea8bd9a340def597abaf5a90879

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:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:vmdetect
Create hunting rule
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.

Web download

Formbook

PowerShell (PS) ps1 da454ebae3e171d8adb872f940d08d614cabfea8bd9a340def597abaf5a90879

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3683231/
  
Delivery method
Distributed via web download

Comments