MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c27c8f029c0ce21a116cdb60c78676cac7ea9dd38aab8bf5c394075b407d6f5e. 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: 13


Intelligence 13 IOCs 3 YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c27c8f029c0ce21a116cdb60c78676cac7ea9dd38aab8bf5c394075b407d6f5e
SHA3-384 hash: 12e85bfb9031be2b390001d8a996edb89f0d681c1482657541683e81f5b881fa73fb24960b5a948c5605f9889da58cb9
SHA1 hash: baae4772f958a85f2420a7c112f3b0ee02f962ce
MD5 hash: f6578c4f484063121bb63109b543fb95
humanhash: hawaii-eight-eighteen-april
File name:hello.exe
Download: download sample
Signature njrat
Create hunting rule
File size:37'888 bytes
First seen:2022-06-16 22:50:42 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 384:pDmE3hUidksXR21cGMy8PIU5fHkFlacpMrAF+rMRTyN/0L+EcoinblneHQM3epzT:NmE3bLGv8PIU58KcarM+rMRa8NuB5t
TLSH T1C8033A4D7FE18168D5FD067B05B2D41307BAE04B6E23D90E8EE564AA37636C18B50EF2
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

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
3.64.4.198:12059 https://threatfox.abuse.ch/ioc/715856/
3.67.62.142:12059 https://threatfox.abuse.ch/ioc/715857/
3.67.161.133:12059 https://threatfox.abuse.ch/ioc/715858/

Intelligence

File Origin
# of uploads :
1
# of downloads :
351
Origin country :
n/a
Vendor Threat Intelligence
Detection:
njRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/280789/
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
Enabling the 'hidden' option for analyzed file
Creating a window
Sending a custom TCP request
Searching for synchronization primitives
DNS request
Using the Windows Management Instrumentation requests
Creating a file in the %temp% directory
Creating a process from a recently created file
Enabling the 'hidden' option for files in the %temp% directory
Creating a file in the %AppData% directory
Creating a file
Enabling the 'hidden' option for recently created files
Launching the process to change the firewall settings
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Enabling autorun by creating a file
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/62abb413473553ed3196f81e/reports/f4e6ca33-2fa9-47e2-91f1-97b5ec86e5df/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/03237396-093d-4455-b37b-63ff6630f683
Result
Threat name:
njRat, Neshta
Create hunting rule
Detection:
malicious
Classification:
spre.troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1014821
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)
Contains functionality to spread to USB devices (.Net source)
Creates autorun.inf (USB autostart)
Creates autostart registry keys with suspicious names
Creates multiple autostart registry keys
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 dropped file
Multi AV Scanner detection for submitted file
Protects its processes via BreakOnTermination flag
Sigma detected: Drops fake system file at system root drive
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 Neshta
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 647317 Sample: hello.exe Startdate: 17/06/2022 Architecture: WINDOWS Score: 100 79 5.tcp.eu.ngrok.io 2->79 81 0.tcp.eu.ngrok.io 2->81 83 14 other IPs or domains 2->83 119 Snort IDS alert for network traffic 2->119 121 Malicious sample detected (through community Yara rule) 2->121 123 Antivirus detection for dropped file 2->123 125 16 other signatures 2->125 10 hello.exe 4 11 2->10         started        15 hello.exe 3 2->15         started        17 tmpA008.tmp.exe 2->17         started        19 7 other processes 2->19 signatures3 process4 dnsIp5 91 5.tcp.eu.ngrok.io 3.127.181.115, 12059, 13034, 49742 AMAZON-02US United States 10->91 61 C:\...\17a12256c22089ecda68e950006be021.exe, PE32 10->61 dropped 63 C:\Users\user\AppData\...\tmpA008.tmp.exe, PE32 10->63 dropped 65 C:\Users\user\AppData\...\tmp8897.tmp.exe, PE32 10->65 dropped 67 17a12256c22089ecda...exe:Zone.Identifier, ASCII 10->67 dropped 135 Creates autostart registry keys with suspicious names 10->135 137 Creates multiple autostart registry keys 10->137 139 Drops PE files to the startup folder 10->139 141 2 other signatures 10->141 21 tmp8897.tmp.exe 5 10->21         started        25 tmpA008.tmp.exe 7 14 10->25         started        28 netsh.exe 1 3 10->28         started        69 C:\Users\user\AppData\Local\...\hello.exe.log, ASCII 15->69 dropped 93 18.158.58.205, 13034, 49784, 49817 AMAZON-02US United States 17->93 95 0.tcp.eu.ngrok.io 17->95 101 2 other IPs or domains 17->101 97 3.125.102.39, 16970, 19738, 49810 AMAZON-02US United States 19->97 99 0.tcp.eu.ngrok.io 19->99 103 4 other IPs or domains 19->103 file6 signatures7 process8 dnsIp9 51 C:\Users\user\AppData\Roaming\dllhost.exe, PE32 21->51 dropped 127 Antivirus detection for dropped file 21->127 129 Machine Learning detection for dropped file 21->129 30 dllhost.exe 21->30         started        85 18.158.249.75, 16970, 19738, 49762 AMAZON-02US United States 25->85 87 0.tcp.eu.ngrok.io 18.192.31.165, 16970, 19738, 49757 AMAZON-02US United States 25->87 89 15 other IPs or domains 25->89 53 C:\Users\user\...\erroriconscursor.exe, PE32 25->53 dropped 55 C:\Users\user\AppData\...\erroricons.exe, PE32 25->55 dropped 57 C:\Users\user\AppData\...\BOMBER-CMD.exe, PE32 25->57 dropped 59 C:\Users\user\AppData\...\crazyinvers.exe, PE32 25->59 dropped 131 Creates autostart registry keys with suspicious names 25->131 133 Creates multiple autostart registry keys 25->133 35 BOMBER-CMD.exe 25->35         started        37 netsh.exe 25->37         started        39 crazyinvers.exe 25->39         started        41 crazyinvers.exe 25->41         started        43 conhost.exe 28->43         started        file10 signatures11 process12 dnsIp13 105 109.197.196.135, 49774, 49778, 9991 TELECOMRUNETRU Russian Federation 30->105 71 C:\svchost.exe, PE32 30->71 dropped 73 C:\...\413491cbe232876548b9b7cd8a1b451d.exe, PE32 30->73 dropped 75 C:\Users\user\AppData\...\tmp751F.tmp.exe, PE32 30->75 dropped 77 3 other malicious files 30->77 dropped 107 Antivirus detection for dropped file 30->107 109 System process connects to network (likely due to code injection or exploit) 30->109 111 Protects its processes via BreakOnTermination flag 30->111 117 5 other signatures 30->117 45 netsh.exe 30->45         started        113 Multi AV Scanner detection for dropped file 35->113 115 Machine Learning detection for dropped file 35->115 47 conhost.exe 37->47         started        file14 signatures15 process16 process17 49 conhost.exe 45->49         started       
Detection:
ramnit
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c27c8f029c0ce21a116cdb60c78676cac7ea9dd38aab8bf5c394075b407d6f5e/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2022-06-16 22:51:04 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=yj6i6au4btrbuelm3nqmpbtwzld6vhotrkvyx5odsqdvwqd5n5pa._file
Result
Malware family:
ramnit
Create hunting rule
Score:
  10/10
Tags:
family:neshta family:njrat family:ramnit botnet:gay botnet:next banker evasion persistence spyware stealer suricata trojan upx worm
Link:
https://tria.ge/reports/220616-2ssccscae3/
Behaviour
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Drops autorun.inf file
Adds Run key to start application
Checks computer location settings
Drops startup file
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Modifies Windows Firewall
UPX packed file
Detect Neshta Payload
Modifies system executable filetype association
Neshta
Ramnit
njRAT/Bladabindi
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
suricata: ET MALWARE njrat ver 0.7d Malware CnC Callback (Capture)
suricata: ET MALWARE njrat ver 0.7d Malware CnC Callback (Message)
suricata: ET MALWARE njrat ver 0.7d Malware CnC Callback (Remote Desktop)
suricata: ET MALWARE njrat ver 0.7d Malware CnC Callback Response (Remote Desktop)
Malware Config
C2 Extraction:
5.tcp.eu.ngrok.io:12059
109.197.196.135:9991
Unpacked files
SH256 hash:
c27c8f029c0ce21a116cdb60c78676cac7ea9dd38aab8bf5c394075b407d6f5e
MD5 hash:
f6578c4f484063121bb63109b543fb95
SHA1 hash:
baae4772f958a85f2420a7c112f3b0ee02f962ce
Detections:
win_njrat_g1
Create hunting rule
win_njrat_w1
Create hunting rule
Link:
https://www.unpac.me/results/e207743e-75ae-474a-af50-0c79c79b639b/
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/c27c8f029c0ce21a116cdb60c78676cac7ea9dd38aab8bf5c394075b407d6f5e

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 c27c8f029c0ce21a116cdb60c78676cac7ea9dd38aab8bf5c394075b407d6f5e

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/280789/

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