MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9c98991058b5f02feb508caf188a61407716265b9f998d7eed1c9c137f6ad546. 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: 8


Intelligence 8 IOCs YARA 2 File information Comments
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SHA256 hash: 9c98991058b5f02feb508caf188a61407716265b9f998d7eed1c9c137f6ad546
SHA3-384 hash: 1ef83294c33d63815acdcf9ce0ea92a7bec4f6f60328802ec0754808aae7e126e01a080db7756402c0f1faa3bb003636
SHA1 hash: 5af73edd0fa7ffa62e1a0470f82be4f556ea99ef
MD5 hash: 52ac13cf11fc0eefc8762ff3fb50e86d
humanhash: salami-comet-utah-wisconsin
File name:ADtours0121025.Vbs
Download: download sample
Signature Formbook
Create hunting rule
File size:2'651 bytes
First seen:2025-01-21 15:43:36 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 48:KTqo7uj9sontfJVHAXJG2e9+qCnsi/lfAzfv3mFXCyj:K1ij6otfJVgXJZ5nj/ObetCyj
TLSH T10151402B6F06D37188B6CD8C895FF40CDE12809BA5198515FD4C48926F347ECC9A93CE
Magika vba
Reporter abuse_ch
Tags:FormBook vbs

Intelligence

File Origin
# of uploads :
1
# of downloads :
102
Origin country :
NL NL
Vendor Threat Intelligence
Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=678fc189e708b6e7a3aebb65
Tags:
autoit emotet
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
evasive powershell
Link:
https://www.filescan.io/uploads/678fc0cad8a989599dcf88d6/reports/66879517-1827-4283-ad14-eb0ecda807e8/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/9c98991058b5f02feb508caf188a61407716265b9f998d7eed1c9c137f6ad546
Result
Verdict:
UNKNOWN
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1596084
Signature
AI detected suspicious sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Binary is likely a compiled AutoIt script file
Found direct / indirect Syscall (likely to bypass EDR)
Found suspicious powershell code related to unpacking or dynamic code loading
Machine Learning detection for dropped file
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)
Powershell drops PE file
Queues an APC in another process (thread injection)
Sigma detected: Script Initiated Connection to Non-Local Network
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
VBScript performs obfuscated calls to suspicious functions
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1596084 Sample: ADtours0121025.Vbs.vbs Startdate: 21/01/2025 Architecture: WINDOWS Score: 100 45 www.serenepath.life 2->45 47 www.chiro.live 2->47 49 8 other IPs or domains 2->49 73 Suricata IDS alerts for network traffic 2->73 75 Malicious sample detected (through community Yara rule) 2->75 77 Antivirus detection for URL or domain 2->77 79 5 other signatures 2->79 12 wscript.exe 16 2->12         started        signatures3 process4 dnsIp5 57 atc-secure.com 92.205.22.61, 443, 49704 GD-EMEA-DC-SXB1DE Germany 12->57 43 C:\Temp\script.ps1, ASCII 12->43 dropped 97 System process connects to network (likely due to code injection or exploit) 12->97 99 VBScript performs obfuscated calls to suspicious functions 12->99 101 Wscript starts Powershell (via cmd or directly) 12->101 103 2 other signatures 12->103 17 powershell.exe 13 12->17         started        file6 signatures7 process8 file9 41 C:\Users\user\AppData\Local\Temp\x.exe, PE32 17->41 dropped 67 Binary is likely a compiled AutoIt script file 17->67 69 Found suspicious powershell code related to unpacking or dynamic code loading 17->69 71 Powershell drops PE file 17->71 21 x.exe 1 17->21         started        24 conhost.exe 17->24         started        signatures10 process11 signatures12 83 Antivirus detection for dropped file 21->83 85 Binary is likely a compiled AutoIt script file 21->85 87 Machine Learning detection for dropped file 21->87 89 4 other signatures 21->89 26 svchost.exe 21->26         started        process13 signatures14 91 Maps a DLL or memory area into another process 26->91 29 XG4tzkOqVF.exe 26->29 injected process15 signatures16 93 Maps a DLL or memory area into another process 29->93 95 Found direct / indirect Syscall (likely to bypass EDR) 29->95 32 sxstrace.exe 13 29->32         started        process17 signatures18 59 Tries to steal Mail credentials (via file / registry access) 32->59 61 Tries to harvest and steal browser information (history, passwords, etc) 32->61 63 Modifies the context of a thread in another process (thread injection) 32->63 65 3 other signatures 32->65 35 XG4tzkOqVF.exe 32->35 injected 39 firefox.exe 32->39         started        process19 dnsIp20 51 www.serenepath.life 67.223.117.189, 49796, 49812, 49828 VIMRO-AS15189US United States 35->51 53 rtp189z.lat 68.65.122.71, 49992, 49993, 49994 NAMECHEAP-NETUS United States 35->53 55 4 other IPs or domains 35->55 81 Found direct / indirect Syscall (likely to bypass EDR) 35->81 signatures21
Score:
0%
Verdict:
Benign
File Type:
SCRIPT
Link:
https://malprob.io/report/9c98991058b5f02feb508caf188a61407716265b9f998d7eed1c9c137f6ad546
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/9c98991058b5f02feb508caf188a61407716265b9f998d7eed1c9c137f6ad546/
Threat name:
Script-WScript.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-01-21 14:11:16 UTC
File Type:
Text (VBS)
AV detection:
6 of 24 (25.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tsmjsecywxyc722qrsxrrctbib3rmjs3t6my27xndsobg73k2vda._file
Verdict:
malicious
Label(s):
unknown_loader_036
Create hunting rule
autoit
Create hunting rule
formbook
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution
Link:
https://tria.ge/reports/250121-s6gcks1phl/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: PowerShell
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
AutoIT Executable
Checks computer location settings
Executes dropped EXE
Blocklisted process makes network request
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/9c98991058b5/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/9c98991058b5f02feb508caf188a61407716265b9f998d7eed1c9c137f6ad546

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:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:detect_tiny_vbs
Create hunting rule
Author:daniyyell
Description:Detects tiny VBS delivery technique

File information

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

Comments