MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bc37b896fee26a5b4de7845cdd046e0200c783d4907ffa7e16da84ed6b5987dd. 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

njrat

Vendor detections: 18

Intelligence 18 IOCs YARA 19 File information Comments

SHA256 hash:	bc37b896fee26a5b4de7845cdd046e0200c783d4907ffa7e16da84ed6b5987dd
SHA3-384 hash:	1f36f7b295ecf8c3e707847feee964a71f041aad21a6908c8f1f92f1b1ac80060c72ff9e0be7d86e401bfebb34badfc9
SHA1 hash:	6951dc20fa1e550ec9d066fe20e5100a9946a56b
MD5 hash:	7bf897ca59b77ad3069c07149c35f97e
humanhash:	mexico-sink-xray-sodium
File name:	Bloxflip Predictor.exe
Download:	download sample
Signature	njrat Create hunting rule
File size:	28'160 bytes
First seen:	2024-12-13 11:01:23 UTC
Last seen:	2025-02-04 05:37:00 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'883 x AgentTesla, 19'801 x Formbook, 12'306 x SnakeKeylogger)
ssdeep	384:rLptwff1tqGIOfIBTkqS61bPGdrNM1AQk93vmhm7UMKmIEecKdbXTzm9bVhcar6v:/pqffy3LN1A/vMHTi9bD
Threatray	409 similar samples on MalwareBazaar
TLSH	T109C2F82C37B68232D1EF467E4662EA5142B5D44BF223FB0E4CD958D94B1B78A0A41FE4
TrID	67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 9.7% (.EXE) Win64 Executable (generic) (10522/11/4) 6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika	pebin
Reporter	lontze7
Tags:	exe NjRAT

Intelligence

File Origin

# of uploads :

# of downloads :

428

Origin country :

Vendor Threat Intelligence

Malware family:

meterpreter

ID:

File name:

4363463463464363463463463.exe

Verdict:

Malicious activity

Analysis date:

2024-11-18 21:51:14 UTC

Tags:

hausbomber meterpreter backdoor dcrat loader opendir phorpiex github lumma stealer evasion autoit uac miner netsupport unwanted remote discord xmrig arch-doc telegram

Link:

https://app.any.run/tasks/fe663278-242b-4a55-baa1-22502db63f6e

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection(s):

Win.Dropper.Nanocore-10030076-0

Win.Packed.Barys-10034402-0

Win.Trojan.Generic-6417450-0

Verdict:

Malicious

Score:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=675c15f189dbe2162350ab11

Tags:

bladabindi asyncrat autorun njrat

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

Creating a file in the %AppData% subdirectories

Creating a file in the Windows directory

Creating a process from a recently created file

Launching a process

Creating a process with a hidden window

Creating a file

Enabling the 'hidden' option for recently created files

Using the Windows Management Instrumentation requests

Searching for synchronization primitives

DNS request

Connection attempt

Sending a custom TCP request

Creating a window

Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch

Enabling autorun by creating a file

Unauthorized injection to a system process

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

cmd fingerprint lolbin netsh njrat rat reg vbnet windows

Link:

https://www.filescan.io/uploads/675c1432bcbfe745996d7540/reports/e71d5dd3-32d3-4f13-95ff-569d97516dcd/overview

Verdict:

Malicious

Labled as:

MSIL.Bladabindi.Generic

Link:

https://www.hybrid-analysis.com/sample/bc37b896fee26a5b4de7845cdd046e0200c783d4907ffa7e16da84ed6b5987dd

Result

Verdict:

MALICIOUS

Details

Windows PE Executable

Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.

Malware family:

njRAT

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/e36c9f85-6bfb-4474-9f85-4f365230d209

Result

Threat name:

Njrat

Detection:

malicious

Classification:

phis.troj.adwa.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1574576

Signature

.NET source code contains potential unpacker

AI detected suspicious sample

Antivirus / Scanner detection for submitted sample

Antivirus detection for dropped file

Connects to many ports of the same IP (likely port scanning)

Creates an autostart registry key pointing to binary in C:\Windows

Creates multiple autostart registry keys

Disables zone checking for all users

Drops executables to the windows directory (C:\Windows) and starts them

Drops PE files to the startup folder

Found malware configuration

Machine Learning detection for dropped file

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Suricata IDS alerts for network traffic

Uses cmd line tools excessively to alter registry or file data

Yara detected Njrat

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/bc37b896fee26a5b4de7845cdd046e0200c783d4907ffa7e16da84ed6b5987dd

Detection:

njrat

Link:

https://mwdb.cert.pl/sample/bc37b896fee26a5b4de7845cdd046e0200c783d4907ffa7e16da84ed6b5987dd/

Threat name:

ByteCode-MSIL.Backdoor.njRAT

Status:

Malicious

First seen:

2022-11-12 18:17:27 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

32 of 38 (84.21%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=xq33rfx64jvfwtphqron2bdoaiampa6usb77u7qw3kco222zq7oq._file

Verdict:

malicious

Label(s):

njrat

Result

Malware family:

njrat

Score:

10/10

Tags:

family:njrat botnet:hacked discovery persistence trojan

Link:

https://tria.ge/reports/241213-m44r7swmgt/

Behaviour

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Views/modifies file attributes

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Drops file in Windows directory

Adds Run key to start application

Legitimate hosting services abused for malware hosting/C2

Checks computer location settings

Drops startup file

Executes dropped EXE

Njrat family

njRAT/Bladabindi

Malware Config

C2 Extraction:

quite-cs.at.ply.gg:10397

Verdict:

Malicious

Tags:

rat njrat Bladabindi cobian_rat cobian_rat Win.Dropper.Nanocore-10030076-0

YARA:

malware_Njrat_strings Windows_Trojan_Njrat_30f3c220 MAL_Njrat MALWARE_Win_NjRAT JPCERTCC_Njrat

Link:

https://app.threat.zone/submission/51a7cbaa-8abd-4b59-ac3b-06402df16368

Unpacked files

SH256 hash:

bc37b896fee26a5b4de7845cdd046e0200c783d4907ffa7e16da84ed6b5987dd

MD5 hash:

7bf897ca59b77ad3069c07149c35f97e

SHA1 hash:

6951dc20fa1e550ec9d066fe20e5100a9946a56b

Link:

https://www.unpac.me/results/0e9b8fdb-fcec-4f86-bde4-64a565a2fc66/

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/bc37b896fee26a5b4de7845cdd046e0200c783d4907ffa7e16da84ed6b5987dd

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:	CN_disclosed_20180208_c Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects malware from disclosed CN malware set
Reference:	https://twitter.com/cyberintproject/status/961714165550342146

Rule name:	CN_disclosed_20180208_c_RID2E71 Create hunting rule
Author:	Florian Roth
Description:	Detects malware from disclosed CN malware set
Reference:	https://twitter.com/cyberintproject/status/961714165550342146

Rule name:	INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse Create hunting rule
Author:	ditekSHen
Description:	Detects file containing reversed ASEP Autorun registry keys

Rule name:	INDICATOR_SUSPICIOUS_EXE_attrib Create hunting rule
Author:	ditekSHen
Description:	Detects executables using attrib with suspicious attributes attributes

Rule name:	INDICATOR_SUSPICIOUS_EXE_DiscordURL Create hunting rule
Author:	ditekSHen
Description:	Detects executables Discord URL observed in first stage droppers

Rule name:	malware_Njrat_strings Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect njRAT in memory

Rule name:	MALWARE_Win_NjRAT Create hunting rule
Author:	ditekSHen
Description:	Detects NjRAT / Bladabindi / NjRAT Golden

Rule name:	MAL_njrat Create hunting rule
Author:	SECUINFRA Falcon Team

Rule name:	NETexecutableMicrosoft Create hunting rule
Author:	malware-lu

Rule name:	Njrat Create hunting rule
Author:	botherder https://github.com/botherder
Description:	Njrat

Rule name:	Njrat Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect njRAT in memory

Rule name:	pe_imphash Create hunting rule

Rule name:	Skystars_Malware_Imphash Create hunting rule
Author:	Skystars LightDefender
Description:	imphash

Rule name:	SUSP_netsh_firewall_command Create hunting rule
Author:	SECUINFRA Falcon Team

Rule name:	SUSP_Reverse_Run_Key Create hunting rule
Author:	SECUINFRA Falcon Team
Description:	Detects a Reversed Run Key

Rule name:	Windows_Trojan_Njrat_30f3c220 Create hunting rule

Rule name:	Windows_Trojan_Njrat_30f3c220 Create hunting rule
Author:	Elastic Security

File information

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

Web download

njrat

exe bc37b896fee26a5b4de7845cdd046e0200c783d4907ffa7e16da84ed6b5987dd

(this sample)

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/3238057/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high

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