MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 40078261f88c8a91fd32bcbb89517c14efd1b13c217f44c18184be2813ea74a7. 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: 12


Intelligence 12 IOCs 5 YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 40078261f88c8a91fd32bcbb89517c14efd1b13c217f44c18184be2813ea74a7
SHA3-384 hash: 890fd5c083b9d3e5134c44a112030506250c4022cce2c2991441ac74361545c7960afa449d5b1ac4a71340cdf9b85b6b
SHA1 hash: 551588ca3457971121b63c390c4d52cab13c886a
MD5 hash: 710aee2409e33eafe2d56bdf4c4b8434
humanhash: snake-leopard-item-river
File name:710aee2409e33eafe2d56bdf4c4b8434.exe
Download: download sample
Signature njrat
Create hunting rule
File size:37'888 bytes
First seen:2022-10-04 03:01:00 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'749 x AgentTesla, 19'653 x Formbook, 12'246 x SnakeKeylogger)
ssdeep 384:weELEUiFsbK7FmpE8QyEfQEP/1fPMIArAF+rMRTyN/0L+EcoinblneHQM3epzX6H:NEH2n8LEfQE13MZrM+rMRa8NuYdt
TLSH T136033A4D7FE18168C5FD457B05B2E01207BAE04B6E23D91E8EF664DA37236C58B50AF2
TrID 61.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.0% (.SCR) Windows screen saver (13101/52/3)
8.8% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
13.59.15.185:19280

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
13.59.15.185:19280 https://threatfox.abuse.ch/ioc/870404/
3.138.45.170:19280 https://threatfox.abuse.ch/ioc/870405/
3.131.207.170:19280 https://threatfox.abuse.ch/ioc/870406/
52.14.18.129:19280 https://threatfox.abuse.ch/ioc/870407/
3.128.107.74:19280 https://threatfox.abuse.ch/ioc/870408/

Intelligence

File Origin
# of uploads :
1
# of downloads :
303
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/316281/
Detection(s):
Win.Packed.Bladabindi-7994427-0
Create hunting rule

Win.Trojan.Generic-6417450-0
Create hunting rule

Win.Trojan.Generic-6454614-0
Create hunting rule

Win.Trojan.Generic-6454615-0
Create hunting rule

Win.Trojan.B-468
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Enabling the 'hidden' option for analyzed file
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Creating a process with a hidden window
Enabling the 'hidden' option for files in the %temp% directory
Creating a window
Searching for synchronization primitives
DNS request
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Unauthorized injection to a recently created process
Launching the process to change the firewall settings
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Gathering data
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:
Mimikatz
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/400d09af-d0f7-4112-940a-ddd7fe6b3184
Result
Threat name:
njRat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1082915
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Changes security center settings (notifications, updates, antivirus, firewall)
Connects to many ports of the same IP (likely port scanning)
Contains functionality to log keystrokes (.Net Source)
Creates autostart registry keys with suspicious names
Detected njRat
Drops PE files to the startup folder
Drops PE files with benign system names
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Protects its processes via BreakOnTermination flag
Query firmware table information (likely to detect VMs)
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Uses netsh to modify the Windows network and firewall settings
Yara detected Generic Downloader
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 715472 Sample: BJSBFSuk2M.exe Startdate: 04/10/2022 Architecture: WINDOWS Score: 100 42 2.tcp.ngrok.io 2->42 50 Snort IDS alert for network traffic 2->50 52 Multi AV Scanner detection for domain / URL 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 15 other signatures 2->56 9 BJSBFSuk2M.exe 1 6 2->9         started        13 svchost.exe 2->13         started        15 svchost.exe 3 2->15         started        17 10 other processes 2->17 signatures3 process4 file5 36 C:\Users\user\AppData\Local\...\svchost.exe, PE32 9->36 dropped 38 C:\Users\user\...\svchost.exe:Zone.Identifier, ASCII 9->38 dropped 40 C:\Users\user\AppData\...\BJSBFSuk2M.exe.log, ASCII 9->40 dropped 66 Drops PE files with benign system names 9->66 19 svchost.exe 2 6 9->19         started        68 Changes security center settings (notifications, updates, antivirus, firewall) 13->68 24 MpCmdRun.exe 1 13->24         started        70 Query firmware table information (likely to detect VMs) 15->70 signatures6 process7 dnsIp8 44 13.59.15.185, 19280, 49738, 49743 AMAZON-02US United States 19->44 46 3.128.107.74, 19280, 49757 AMAZON-02US United States 19->46 48 4 other IPs or domains 19->48 32 C:\...\f98a5f41bae6af8595aa1f9015e923a5.exe, PE32 19->32 dropped 34 f98a5f41bae6af8595...exe:Zone.Identifier, ASCII 19->34 dropped 58 Antivirus detection for dropped file 19->58 60 System process connects to network (likely due to code injection or exploit) 19->60 62 Multi AV Scanner detection for dropped file 19->62 64 6 other signatures 19->64 26 netsh.exe 3 19->26         started        28 conhost.exe 24->28         started        file9 signatures10 process11 process12 30 conhost.exe 26->30         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/40078261f88c8a91fd32bcbb89517c14efd1b13c217f44c18184be2813ea74a7/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2022-10-01 14:32:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
26 of 26 (100.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=iadyeypyrsfjd7jsxs5ysul4ctx5dmj4ef7ujqmbqs7cqe7kostq._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:hacked evasion persistence trojan
Link:
https://tria.ge/reports/221004-dhwd9saaf4/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Adds Run key to start application
Checks computer location settings
Drops startup file
Loads dropped DLL
Executes dropped EXE
Modifies Windows Firewall
njRAT/Bladabindi
Malware Config
C2 Extraction:
2.tcp.ngrok.io:19280
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/14999188-bb43-4aee-8e8a-203b0e61a5f4
Unpacked files
SH256 hash:
40078261f88c8a91fd32bcbb89517c14efd1b13c217f44c18184be2813ea74a7
MD5 hash:
710aee2409e33eafe2d56bdf4c4b8434
SHA1 hash:
551588ca3457971121b63c390c4d52cab13c886a
Detections:
win_njrat_w1
Create hunting rule
win_njrat_g1
Create hunting rule
Link:
https://www.unpac.me/results/68861831-8157-47aa-a93f-76a2382c3ab9/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
NJRat
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/40078261f88c8a91fd32bcbb89517c14efd1b13c217f44c18184be2813ea74a7

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:MALWARE_Win_NjRAT
Create hunting rule
Author:ditekSHen
Description:Detects NjRAT / Bladabindi
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_Ngrok_URL
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects a PE file that contains an ngrok.io URL. This can be used as C2 channel
Rule name:win_njrat_w1
Create hunting rule
Author:Brian Wallace @botnet_hunter <bwall@ballastsecurity.net>
Description:Identify njRat

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/316281/

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