MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 64ddaec35ffff60526ab760aea8d1a631a5c1b77c18d6054a1d36e95a7e4c8b1. 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: 11


Intelligence 11 IOCs 1 YARA 12 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 64ddaec35ffff60526ab760aea8d1a631a5c1b77c18d6054a1d36e95a7e4c8b1
SHA3-384 hash: c4f2921b4c93dc95188640536ac0f14063ead90c3247b969a52bb99c6c9c5e46c8551b353071698026ef5c325b7b30f2
SHA1 hash: 752097ccc117b7f02e627e3524aa67314a454400
MD5 hash: 6c607abc4ca1b51bde998c7308de858b
humanhash: may-violet-gee-princess
File name:6C607ABC4CA1B51BDE998C7308DE858B.exe
Download: download sample
Signature njrat
Create hunting rule
File size:5'689'344 bytes
First seen:2021-05-14 20:21:07 UTC
Last seen:2021-05-14 21:02:04 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 49152:3wmNmcwcRnSnnOxoihuDcETKzBnNTNG2k6i755s5wp7kAxBZd:ZmKinaI+rRw6lwZk
Threatray 253 similar samples on MalwareBazaar
TLSH 4946943022EE788EF13725682414A7A64FA3F325427CB03E6556BB53DB71E161EE039D
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
78.180.177.193:6606

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
78.180.177.193:6606 https://threatfox.abuse.ch/ioc/42514/

Intelligence

File Origin
# of uploads :
2
# of downloads :
219
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
6C607ABC4CA1B51BDE998C7308DE858B.exe
Verdict:
No threats detected
Analysis date:
2021-05-14 20:28:30 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/680239b8-c3f6-4f6b-a246-0606cb4f5226

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/157138/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a window
Running batch commands
Creating a process with a hidden window
Creating a file
Creating a file in the %AppData% directory
Creating a file in the %AppData% subdirectories
Launching a process
Creating a file in the Windows directory
Sending a UDP request
DNS request
Connection attempt
Using the Windows Management Instrumentation requests
Launching a service
Creating a file in the Windows subdirectories
Deleting a recently created file
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Launching the process to change the firewall settings
Launching a tool to kill processes
Changing the hosts file
Enabling autorun by creating a file
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.
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
90 / 100
Link:
https://www.joesandbox.com/analysis/782288
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for dropped file
Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))
Connects to a pastebin service (likely for C&C)
Creates autostart registry keys with suspicious names
Drops PE files to the startup folder
Drops PE files to the user root directory
Drops PE files with benign system names
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies the context of a thread in another process (thread injection)
Modifies the hosts file
Modifies the windows firewall
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Mutes Antivirus updates and installments via hosts file black listing
Sample is not signed and drops a device driver
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to delay execution (extensive OutputDebugStringW loop)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Uses dynamic DNS services
Uses netsh to modify the Windows network and firewall settings
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 414685 Sample: tpdwIENhDh.exe Startdate: 14/05/2021 Architecture: WINDOWS Score: 90 109 geceler31.duckdns.org 2->109 111 pool.supportxmr.com 2->111 113 2 other IPs or domains 2->113 125 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->125 127 Malicious sample detected (through community Yara rule) 2->127 129 Multi AV Scanner detection for submitted file 2->129 131 7 other signatures 2->131 10 tpdwIENhDh.exe 7 2->10         started        14 WindowsServices.exe 2->14         started        16 svchost.exe 2->16         started        19 3 other processes 2->19 signatures3 process4 dnsIp5 99 C:\Users\user\AppData\Local\Temp\worm.exe, PE32 10->99 dropped 101 C:\Users\user\AppData\Local\...\svchosts.exe, PE32 10->101 dropped 103 C:\Users\user\AppData\Local\...\crypted.exe, PE32 10->103 dropped 105 3 other malicious files 10->105 dropped 175 Hides that the sample has been downloaded from the Internet (zone.identifier) 10->175 21 craftrisenj.exe 10->21         started        26 svchosts.exe 3 10->26         started        28 cr.exe 8 10->28         started        32 2 other processes 10->32 177 Machine Learning detection for dropped file 14->177 30 cmd.exe 14->30         started        107 127.0.0.1 unknown unknown 16->107 file6 signatures7 process8 dnsIp9 123 192.168.2.1 unknown unknown 21->123 81 C:\Users\user\AppData\...\RealtekAudio.exe, PE32 21->81 dropped 153 Antivirus detection for dropped file 21->153 155 Machine Learning detection for dropped file 21->155 34 RealtekAudio.exe 21->34         started        83 C:\Windows\svchosts.exe, PE32 26->83 dropped 85 C:\Windows\System32\drivers\etc\hosts, ASCII 26->85 dropped 157 Multi AV Scanner detection for dropped file 26->157 159 Mutes Antivirus updates and installments via hosts file black listing 26->159 161 Modifies the hosts file 26->161 163 Adds a directory exclusion to Windows Defender 26->163 39 powershell.exe 26->39         started        41 powershell.exe 26->41         started        43 ReAgentc.exe 26->43         started        53 3 other processes 26->53 87 C:\Users\user\WindowsServices.exe, PE32+ 28->87 dropped 89 C:\Users\user\AppData\Roaming\...\WR64.sys, PE32+ 28->89 dropped 91 C:\Users\user\AppData\...\sihost64.exe, PE32+ 28->91 dropped 165 Drops PE files to the user root directory 28->165 167 Sample is not signed and drops a device driver 28->167 45 WindowsServices.exe 28->45         started        47 cmd.exe 1 28->47         started        49 sihost64.exe 28->49         started        93 C:\Windows\Resources\Themes\...\svchost.exe, PE32 32->93 dropped 95 d9f4cza91c4aJb1eK1...b8eQT34c7f444O1.exe, PE32 32->95 dropped 97 3 other files (1 malicious) 32->97 dropped 169 Drops PE files to the startup folder 32->169 171 Tries to delay execution (extensive OutputDebugStringW loop) 32->171 173 Drops PE files with benign system names 32->173 51 systemalt.exe 32->51         started        file10 signatures11 process12 dnsIp13 115 44gang44.duckdns.org 78.180.177.193, 1339, 49722, 49736 TTNETTR Turkey 34->115 79 C:\Users\user\...\RealtekAudio.exe.tmp, ASCII 34->79 dropped 133 Antivirus detection for dropped file 34->133 135 Machine Learning detection for dropped file 34->135 137 Creates autostart registry keys with suspicious names 34->137 151 2 other signatures 34->151 55 netsh.exe 34->55         started        139 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 39->139 57 conhost.exe 39->57         started        59 conhost.exe 41->59         started        61 conhost.exe 43->61         started        141 Modifies the context of a thread in another process (thread injection) 45->141 143 Injects a PE file into a foreign processes 45->143 63 cmd.exe 45->63         started        145 Uses schtasks.exe or at.exe to add and modify task schedules 47->145 65 conhost.exe 47->65         started        67 schtasks.exe 47->67         started        69 WindowsServices.exe 49->69         started        117 raw.githubusercontent.com 185.199.111.133, 443, 49724 FASTLYUS Netherlands 51->117 119 discord.com 162.159.128.233, 443, 49723, 49732 CLOUDFLARENETUS United States 51->119 121 162.159.138.232, 443, 49731 CLOUDFLARENETUS United States 51->121 147 Multi AV Scanner detection for dropped file 51->147 149 Tries to harvest and steal browser information (history, passwords, etc) 51->149 71 3 other processes 53->71 file14 signatures15 process16 process17 73 conhost.exe 55->73         started        75 conhost.exe 63->75         started        77 schtasks.exe 63->77         started       
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/64ddaec35ffff60526ab760aea8d1a631a5c1b77c18d6054a1d36e95a7e4c8b1/
Threat name:
ByteCode-MSIL.Trojan.Razy
Create hunting rule
Status:
Malicious
First seen:
2021-05-12 02:56:07 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=mto25q27773akjvloyfovdi2mmnfyg3xyggwavfb2nxjlj7ezcyq._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
0dcebcbff7b84930e0796b27a4f795480423a122d6d201e45073678832b0961f
njrat
126f752c7dec6c513804a0737e5d0a03cd8a1082923d68aec35979f3a7db7d60
njrat
337a895245dcdbe522c4320dbe1dfd62e346aecad8246f9b895a5460211865b0
njrat
360dc7aa2889b1ed05b553eccab73348de2fae89cd7742e64422712298b670ca
njrat
3b019e395d076e03b3b4a2d9468d3acb36df69115e059119194fbd8dd6d1dd6b
njrat
8b80872d81924c99b79ae840ae227d46dc0010b368cea1e54074dd46890074bd
njrat
8d730630389f403985ddbff2c9617c9b9ca9fd4ad0c9ee5d9fceeecc44356340
njrat
a56b83419b879f415fcd6961f31ad0345305288cd67b61ce4a533f8c2ae12c25
njrat
be7af0c2f9356ba016baa597e558df431fa2c5fbd4ac2fbf8d86a24662dcd464
njrat
dea2e88e71d3b38500aca694a9ba1f476d8db14e5389a2cf70b23cad51eb33c9
njrat
+ 243 additional samples on MalwareBazaar
Result
Malware family:
xmrig
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat family:xmrig evasion miner persistence rat trojan
Link:
https://tria.ge/reports/210514-e9a9xqasws/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Kills process with taskkill
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
Enumerates physical storage devices
Program crash
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Legitimate hosting services abused for malware hosting/C2
Drops startup file
Loads dropped DLL
Windows security modification
Drops file in Drivers directory
Executes dropped EXE
Async RAT payload
Nirsoft
XMRig Miner Payload
AsyncRat
Modifies Windows Defender Real-time Protection settings
Turns off Windows Defender SpyNet reporting
UAC bypass
Windows security bypass
xmrig
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/64ddaec35ffff60526ab760aea8d1a631a5c1b77c18d6054a1d36e95a7e4c8b1

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:Cryptocoin_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Steam in files like avemaria
Rule name:INDICATOR_SUSPICIOUS_EXE_RawGitHub_URL
Create hunting rule
Author:ditekSHen
Description:Detects executables containing URLs to raw contents of a Github gist
Rule name:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:MALWARE_Win_NjRAT
Create hunting rule
Author:ditekSHen
Description:Detects NjRAT / Bladabindi
Rule name:MAL_XMR_Miner_May19_1
Create hunting rule
Author:Florian Roth
Description:Detects Monero Crypto Coin Miner
Reference:https://www.guardicore.com/2019/05/nansh0u-campaign-hackers-arsenal-grows-stronger/
Rule name:pe_imphash
Create hunting rule
Rule name:Ping_Del_method_bin_mem
Create hunting rule
Author:James_inthe_box
Description:cmd ping IP nul del
Rule name:RAT_njRat
Create hunting rule
Author:Kevin Breen <kevin@techanarchy.net>
Description:Detects njRAT
Reference:http://malwareconfig.com/stats/njRat
Rule name:Skystars_LightDefender_Njrat_Rule
Create hunting rule
Author:Skystars LightDefender
Description:Detects Njrat
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_njrat_w1
Create hunting rule
Author:Brian Wallace @botnet_hunter <bwall@ballastsecurity.net>
Description:Identify njRat
Rule name:XMRIG_Miner
Create hunting rule

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/157138/

Comments


Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-05-14 21:02:39 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [B0001.025] Anti-Behavioral Analysis::Software Breakpoints
1) [C0027.001] Cryptography Micro-objective::AES::Encrypt Data
3) [B0023] Execution::Install Additional Program