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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 963cdc4637635e006f8484d32e7ed241936f970d78cbca10af833fa3feccef4f. 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 23 File information Comments

SHA256 hash: 963cdc4637635e006f8484d32e7ed241936f970d78cbca10af833fa3feccef4f
SHA3-384 hash: 6680d7273788a04f35957ed927b674b468574ea4ae21aab08c327b9ba6ceea956da150f18e9db75388aabc3405e1cd7f
SHA1 hash: d81f5ad8f0caf3964fa86fbc7817d0dc22d54929
MD5 hash: bb0cebca36a6842fa69b1165fb34655c
humanhash: edward-magazine-avocado-carpet
File name:RFQ_BMR007126_pdf.JS
Download: download sample
Signature Formbook
File size:3'734'331 bytes
First seen:2026-11-02 13:35:44 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:application/javascript
ssdeep 98304:pIzC4vkqJscHjr9vgvpozrU9DznG2q9tiDBSu8Lg4J8Ru0Uq7G5aIqdnq1bb4q:pMCSJsMjrNgPnnG2m8Su8LZ50uaILIq
TLSH T13D06908913B2D6727721AB5C47B78931950A6C3339C7DB31336CDA297A1CC1F6358AE2
Magika javascript
Reporter abuse_ch
Tags:FormBook js

Intelligence


File Origin
# of uploads :
1
# of downloads :
176
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
96.5%
Tags:
infosteal shell virus sage
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug dropper evasive obfuscated packed reconnaissance repaired
Verdict:
Malicious
File Type:
js
First seen:
2026-11-01T20:11:00Z UTC
Last seen:
2026-11-02T10:26:00Z UTC
Hits:
~1000
Result
Threat name:
DonutLoader, FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Benign windows process drops PE files
Creates a thread in another existing process (thread injection)
Drops PE files to the document folder of the user
Executes Lua script
Found API chain indicative of debugger detection
Found direct / indirect Syscall (likely to bypass EDR)
JavaScript source code contains call to eval() to check own source code (likely for evading instrumentation)
JavaScript source code contains functionality to generate code involving a shell, file or stream
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
Queues an APC in another process (thread injection)
Sigma detected: WScript or CScript Dropper
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)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
WScript reads language and country specific registry keys (likely country aware script)
Yara detected DonutLoader
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1996770 Sample: RFQ_BMR007126_pdf.JS.js Startdate: 02/11/2026 Architecture: WINDOWS Score: 100 45 www.rosebol.com 2->45 47 www.facileafeter.com 2->47 49 3 other IPs or domains 2->49 51 Suricata IDS alerts for network traffic 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 Antivirus / Scanner detection for submitted sample 2->55 57 7 other signatures 2->57 8 wscript.exe 1 4 2->8         started        12 c7HZYhLvrCqwr.exe 2->12 injected 14 3saz2YHhMrSKpJykb00aUJ6.exe 2->14 injected 16 eCNb4I741f.exe 2->16 injected signatures3 process4 dnsIp5 37 C:\Users\user\...\AJLEILIDPZBGDJAV.exe, PE32+ 8->37 dropped 79 Benign windows process drops PE files 8->79 81 Drops PE files to the document folder of the user 8->81 83 Windows Scripting host queries suspicious COM object (likely to drop second stage) 8->83 89 2 other signatures 8->89 19 AJLEILIDPZBGDJAV.exe 1 8->19         started        22 cmd.exe 1 8->22         started        85 Maps a DLL or memory area into another process 12->85 87 Found direct / indirect Syscall (likely to bypass EDR) 12->87 25 TSTheme.exe 13 12->25         started        27 findstr.exe 14->27         started        39 www.concordeassocies.com 164.132.235.17, 49713, 80 OVHFR France 16->39 41 rosebol.com 162.241.60.213, 49714, 49715, 49716 ORACLE-BMC-31898-OracleCorporationUS Brazil 16->41 43 facileafeter.com 213.255.195.51, 80 LWSFR France 16->43 file6 signatures7 process8 file9 59 Found API chain indicative of debugger detection 19->59 61 Maps a DLL or memory area into another process 19->61 63 Creates a thread in another existing process (thread injection) 19->63 65 Found direct / indirect Syscall (likely to bypass EDR) 19->65 29 conhost.exe 19->29         started        35 RFQ_BMR007126_pdf.JS.js:Zone.Identifier, ASCII 22->35 dropped 31 conhost.exe 22->31         started        67 Tries to steal Mail credentials (via file / registry access) 25->67 69 Tries to harvest and steal browser information (history, passwords, etc) 25->69 71 Modifies the context of a thread in another process (thread injection) 25->71 33 firefox.exe 25->33         started        73 Queues an APC in another process (thread injection) 27->73 75 Unusual module load detection (module proxying) 27->75 77 Switches to a custom stack to bypass stack traces 27->77 signatures10 process11
Verdict:
inconclusive
YARA:
1 match(es)
Result
Malware family:
donutloader
Score:
  10/10
Tags:
family:donutloader execution loader
Behaviour
Modifies registry class
NTFS ADS
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
Executes a command shell one-liner
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Detects DonutLoader
Family: DonutLoader
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:exploit_any_poppopret
Author:Jeff White [karttoon@gmail.com] @noottrak
Description:Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.
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:MULTI_Malware_AgentTesla_ForgeAuto_ed343f78_Extrait
Author:Marjoriefort
Description:Detects AgentTesla (inconnu, etat extrait)
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:SUSP_VBS_Randomized_ActiveX_Downloader
Author:Marjoriefort
Description:Dropper VBS obfusque : ActiveXObject a identifiant randomise (20 MAJ), SaveToFile, .Run
Reference:Veille fraicheur 2026-09-14 / grappe VBS randomisee
Rule name:TH_Win_ETW_Bypass_2025_CYFARE
Author:CYFARE
Description:Windows ETW Bypass Detection Rule - 2025
Reference:https://cyfare.net/
Rule name:WIN_Malware_SalatStealer_ForgeAuto_542e717b
Author:Marjoriefort
Description:Detects SalatStealer (pe, etat binaire)
Rule name:WIN_Malware_Sliver_ForgeAuto_2ddb463c
Author:Marjoriefort
Description:Detects Sliver (pe, etat binaire)
Rule name:WIN_Malware_Unknown_ForgeAuto_2ffc3572
Author:Marjoriefort
Description:Detects Unknown (pe, etat binaire)
Rule name:WIN_Malware_Unknown_ForgeAuto_5001c94c
Author:Marjoriefort
Description:Detects Unknown (pe, etat binaire)
Rule name:WIN_Malware_Unknown_ForgeAuto_ce8c5b46
Author:Marjoriefort
Description:Detects Unknown (pe, etat binaire)
Rule name:WIN_Malware_ValleyRAT_ForgeAuto_401c5e16
Author:Marjoriefort
Description:Detects ValleyRAT (pe, etat binaire)

File information


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

Comments