MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a525db0585bb18696e68b1097470debe74c2911dcf57b39b82ab6f3d59a36f1e. 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: 16


Intelligence 16 IOCs 1 YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a525db0585bb18696e68b1097470debe74c2911dcf57b39b82ab6f3d59a36f1e
SHA3-384 hash: 188ac6bb40b47278500cb4e438a4ef79d72a0d22ed65b3bb22b3d0f1b67902d33c804d25d0c2f838c7100054212d203e
SHA1 hash: ffe3bb9fde25592357036a0fae15cb256a698cdd
MD5 hash: 7bd7afb4a401941a79d14e91404a7286
humanhash: bakerloo-ten-mike-virginia
File name:hyi.exe
Download: download sample
Signature njrat
Create hunting rule
File size:37'888 bytes
First seen:2022-06-14 16:22:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'753 x AgentTesla, 19'659 x Formbook, 12'250 x SnakeKeylogger)
ssdeep 384:lNQCT0i9HdTe/kCOyU73oflQDXSikrAF+rMRTyN/0L+EcoinblneHQM3epzX4NrD:HVt1CFU73oSDSPrM+rMRa8Nuynt
Threatray 611 similar samples on MalwareBazaar
TLSH T113032A4D7FE18168C4FD067706B2D01207BBE04B6E23D91ECEE5649A37636C58B54AF2
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 Anonymous
Tags:exe NjRAT RAT

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
3.127.59.75:14962 https://threatfox.abuse.ch/ioc/700640/

Intelligence

File Origin
# of uploads :
1
# of downloads :
366
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
njrat
Create hunting rule
ID:
1
File name:
hyi.exe
Verdict:
Malicious activity
Analysis date:
2022-06-14 18:17:32 UTC
Tags:
trojan rat njrat bladabindi
Link:
https://app.any.run/tasks/eb8cebf7-a032-45e9-a3a3-60f4d011b125

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
njRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/279896/
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
Сreating synchronization primitives
Creating a process with a hidden window
Creating a window
Searching for synchronization primitives
DNS request
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Launching the process to change the firewall settings
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
bladabindi cmd.exe fingerprint greyware keylogger njrat packed rat stealer windows
Link:
https://www.filescan.io/uploads/62a8b62373b91c38f68e8b62/reports/927a32ba-4e74-4f97-98bf-cdc58ed0fdd6/overview
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/913ed694-5285-4763-92d4-c6f7906feefb
Result
Threat name:
njRat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1013094
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
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Contains functionality to log keystrokes (.Net Source)
Detected njRat
Drops PE files to the startup folder
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 submitted file
Snort IDS alert for network traffic
Uses netsh to modify the Windows network and firewall settings
Yara detected Generic Downloader
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 645590 Sample: hyi.exe Startdate: 14/06/2022 Architecture: WINDOWS Score: 100 71 Snort IDS alert for network traffic 2->71 73 Malicious sample detected (through community Yara rule) 2->73 75 Antivirus detection for dropped file 2->75 77 12 other signatures 2->77 8 hyi.exe 2 9 2->8         started        13 bella.exe 3 2->13         started        15 hyi.exe 2 2->15         started        17 bruh.exe 3 2->17         started        process3 dnsIp4 65 3.121.139.82, 14962, 49778, 49792 AMAZON-02US United States 8->65 67 3.127.253.86, 14962, 49761, 49783 AMAZON-02US United States 8->67 69 4.tcp.eu.ngrok.io 3.127.59.75, 14962, 49760, 49762 AMAZON-02US United States 8->69 43 C:\Users\user\AppData\Roaming\...\hyi.exe, PE32 8->43 dropped 45 C:\Users\user\AppData\...\dlya hyia.exe, PE32 8->45 dropped 47 C:\Users\user\AppData\Roaming\...\bruh.exe, PE32 8->47 dropped 49 C:\Users\user\AppData\Roaming\...\bella.exe, PE32 8->49 dropped 79 Drops PE files to the startup folder 8->79 81 Uses netsh to modify the Windows network and firewall settings 8->81 83 Modifies the windows firewall 8->83 19 bella.exe 4 8->19         started        22 bruh.exe 4 8->22         started        24 dlya hyia.exe 8->24         started        26 2 other processes 8->26 file5 signatures6 process7 dnsIp8 53 4.tcp.eu.ngrok.io 19->53 55 192.168.2.1 unknown unknown 19->55 29 netsh.exe 3 19->29         started        57 52.28.112.211, 14962, 49781, 49784 AMAZON-02US United States 22->57 59 4.tcp.eu.ngrok.io 22->59 31 netsh.exe 3 22->31         started        61 18.198.77.177, 14962, 49786, 49800 AMAZON-02US United States 24->61 63 4.tcp.eu.ngrok.io 24->63 33 netsh.exe 24->33         started        51 C:\Users\user\AppData\Local\...\hyi.exe.log, ASCII 26->51 dropped 35 conhost.exe 26->35         started        file9 process10 process11 37 conhost.exe 29->37         started        39 conhost.exe 31->39         started        41 conhost.exe 33->41         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a525db0585bb18696e68b1097470debe74c2911dcf57b39b82ab6f3d59a36f1e/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2022-06-14 16:23:04 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
26 of 26 (100.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uus5wbmfxmmgs3tiweexi4g6xz2mfei5z5l3hg4cvnxt2wndn4pa._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
001c279ebd22809a7826920d19767d2c01b0b96c519e136ba70b0f95746ecf7e
njrat
5ccee64d7cda44cac1e1ebe9be61d2888c2d28dfa0c8cf0e255fe8b153cad342
njrat
a6a5d9c990f65662ccf6888c02135c6f4e267ccd0fb1e5abbbf97fa0795bf54e
njrat
cf0f62c6105ceec3db23af296678feed3ea95d14ff032223d5397c7351cfc9e0
njrat
dbc86d106d7e6993024eca3c621bd7dd84ea578903fd11a62ed3af896ef78470
njrat
e1c6d4fa79af1e7487d0238e04b466a1bd697f4250cd9e6dfbb449636a360634
njrat
e3c8e66188c83c50326a1fee642e7b80d2a1ef4e624e1a8738a468a9695d3717
njrat
+ 601 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:lox evasion suricata
Link:
https://tria.ge/reports/220614-tvr6dafehj/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Modifies Windows Firewall
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
suricata: ET MALWARE njrat ver 0.7d Malware CnC Callback (Capture)
Malware Config
C2 Extraction:
4.tcp.eu.ngrok.io:14962
Unpacked files
SH256 hash:
a525db0585bb18696e68b1097470debe74c2911dcf57b39b82ab6f3d59a36f1e
MD5 hash:
7bd7afb4a401941a79d14e91404a7286
SHA1 hash:
ffe3bb9fde25592357036a0fae15cb256a698cdd
Detections:
win_njrat_g1
Create hunting rule
win_njrat_w1
Create hunting rule
Link:
https://www.unpac.me/results/06023c53-7f71-4c33-bc6c-fe5364585810/
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a525db0585bb/report/overview.html
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/a525db0585bb18696e68b1097470debe74c2911dcf57b39b82ab6f3d59a36f1e

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.

Web download

njrat

Executable exe a525db0585bb18696e68b1097470debe74c2911dcf57b39b82ab6f3d59a36f1e

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/279896/

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