MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 520d39249b7e25f668576f049dab1645d0c701632932e0bcc3c3f1f90ee8355e. 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

SHA256 hash:	520d39249b7e25f668576f049dab1645d0c701632932e0bcc3c3f1f90ee8355e
SHA3-384 hash:	1302f1bc9927ce36a7c6ce648c0c9c93a4c498ee7d9a4cbd0e767587c68b6de970814f07624d35e9212eb7473c379f45
SHA1 hash:	26b407ff5b29ecb8a1f630af2fb6156c59671059
MD5 hash:	5f763db293f54c634bb185f33e0d69da
humanhash:	lactose-delaware-delta-maryland
File name:	swift909288172918.JS
Download:	download sample
Signature	Formbook Alert Create hunting rule
File size:	5'640'810 bytes
First seen:	2025-07-14 09:41:37 UTC
Last seen:	Never
File type:	js
MIME type:	text/plain
ssdeep	98304:FCjQXVV/ajnM2HVLVRrBgPBEB4OTa6+BL+hWs/1H0L79371lPnKYz7N479gCC5lA:FPcnM2TViI4OTa/BKhWs/VY9k+em7tmp
Threatray	52 similar samples on MalwareBazaar
TLSH	T1354663C6EAF19FA472482F983A343747C8ED42C7EA5210F452A8D536DB7D629C79D032
Magika	javascript
Reporter	smica83
Tags:	FormBook js

Intelligence

---

File Origin

# of uploads :

1

# of downloads :

47

Origin country :

HU

Vendor Threat Intelligence

CyberFortress Malicious

Verdict:

Malicious

Score:

97.4%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6874d0fd900df8e7f86a8a50

Tags:

delphi emotet

Hybrid Analysis Trojan/JS.Agent

Verdict:

Suspicious

Labled as:

Trojan/JS.Agent

Link:

https://www.hybrid-analysis.com/sample/520d39249b7e25f668576f049dab1645d0c701632932e0bcc3c3f1f90ee8355e

Joe Sandbox DBatLoader, FormBook

Result

Threat name:

DBatLoader, FormBook

Alert

Create hunting rule

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1735874

Signature

Allocates many large memory junks

Allocates memory in foreign processes

C2 URLs / IPs found in malware configuration

Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)

Creates a thread in another existing process (thread injection)

Found malware configuration

Injects a PE file into a foreign processes

JavaScript source code contains functionality to generate code involving a shell, file or stream

Joe Sandbox ML detected suspicious sample

Malicious sample detected (through community Yara rule)

Sigma detected: Execution from Suspicious Folder

Sigma detected: Windows Shell/Scripting Application File Write to Suspicious Folder

Sigma detected: WScript or CScript Dropper

Tries to detect virtualization through RDTSC time measurements

Windows Scripting host queries suspicious COM object (likely to drop second stage)

Writes to foreign memory regions

Yara detected DBatLoader

Yara detected FormBook

Behaviour

Behavior Graph:

Download SVG

Nucleon Malprob Malware

Score:

93%

Verdict:

Malware

File Type:

SCRIPT

Link:

https://malprob.io/report/520d39249b7e25f668576f049dab1645d0c701632932e0bcc3c3f1f90ee8355e

Malva.RE

Gathering data

CERT.PL MWDB

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/520d39249b7e25f668576f049dab1645d0c701632932e0bcc3c3f1f90ee8355e/

Neiki trojan

Verdict:

Malicious

Threat:

trojan

Link:

https://tip.neiki.dev/file/520d39249b7e25f668576f049dab1645d0c701632932e0bcc3c3f1f90ee8355e

ReversingLabs TitaniumCloud Script-JS.Backdoor.FormBook

Threat name:

Script-JS.Backdoor.FormBook

Alert

Create hunting rule

Status:

Malicious

First seen:

2025-07-14 00:04:46 UTC

File Type:

Text (JavaScript)

AV detection:

9 of 24 (37.50%)

Threat level:

  5/5

Spamhaus Hash Blocklist Suspicious file

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=kigtsje3pys7m2cxn4cj3kywiximoaldfezobpgdypy7sdxigvpa._file

Threatray dbatloader

Verdict:

malicious

Label(s):

dbatloader

Alert

Create hunting rule

Similar samples:

07ab587c6f762a415886eadc48fa204667204aefe0823da1f66b8a652694f1a0

Formbook

4308a4f09494d5d09cb8383c8032c665267d9c88d12c54e3a6ebbbed820df9f5

Formbook

449b226d9a6c5729a3fbd0da781cd46d039e15e47f85360489fdeda01da0efc9

Formbook

70a92cdcd65bad4c5ed38adf340d5123944acde22d94c44df7ee8178f778d761

Formbook

870581d45e947b5012a6484f1af15ff5040008dca712ab3d30232f25d0b7f98b

Formbook

a629a22b72ff8cc70d4623de7dff6d3bc59ffedc8a99f583c63c71bb8ece3056

Formbook

c0b31e254a314acbbc363fcca03aff303c85aaa0b41f3c9feb8581e5678e7ea9

Formbook

c63dee86806da2bd0061973cd65f45f3a9326a42e843b5a0a5824e73ebf5916d

Formbook

cb87aec2f88166a70cf6362a435fe3d36576eec45809a9b72605e6fba1d740ee

Formbook

ebd2b47631fb846554948d70b77d313ecbbb794a412fdb8a0aa693aeaac5255f

Formbook

error

Formbook

+ 42 additional samples on MalwareBazaar

Hatching Triage modiloader

Result

Malware family:

modiloader

Alert

Create hunting rule

Score:

  10/10

Tags:

family:modiloader defense_evasion discovery execution persistence trojan

Link:

https://tria.ge/reports/250714-lpf7xsz1cx/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Command and Scripting Interpreter: JavaScript

Enumerates physical storage devices

Program crash

System Location Discovery: System Language Discovery

System Binary Proxy Execution: ScriptRunner

Adds Run key to start application

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

ModiLoader Second Stage

ModiLoader, DBatLoader

Modiloader family

VirusTotal

Please note that we are no longer able to provide a coverage score for Virus Total.

YOROI YOMI Suspicious File

Threat name:

Suspicious File

Score:

0.30

Link:

https://yomi.yoroi.company/submissions/520d39249b7e25f668576f049dab1645d0c701632932e0bcc3c3f1f90ee8355e