MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f41a867263b1d1e3c4d235614eb3f558a9fb783b4babeff95c75a799b435b8f0. 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: 8


Intelligence 8 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f41a867263b1d1e3c4d235614eb3f558a9fb783b4babeff95c75a799b435b8f0
SHA3-384 hash: 3e8aee4c9bdaa27cb2a2e1851364f6b13597e75c4d721906ee2a485a96d460675b097580e0978b9aafca14efca493d4c
SHA1 hash: db0aa09615f9a570783780588494e613a68a4dff
MD5 hash: 4d3ed0a582ab33e05c8ec7f1fc7c7689
humanhash: wyoming-batman-uniform-thirteen
File name:f41a867263b1d1e3c4d235614eb3f558a9fb783b4babeff95c75a799b435b8f0
Download: download sample
Signature njrat
Create hunting rule
File size:335'888 bytes
First seen:2020-11-12 14:36:30 UTC
Last seen:2024-07-24 23:01:29 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 9d1f0da408c33eebb70b9bfa17b7fddc (4 x njrat, 1 x Jadtre)
ssdeep 6144:XO4OigQE8UOWKQyQ1fqyv9O/CH/tMRt+pQwupxvu/MaxYWR:X7Oi68aKQySfxq2tYsKwmxveMavR
TLSH 2864E06132D1C032E45344359DA98BA1BA34FD392A75994FBB801B6D6F31BA3C727B13
Reporter seifreed
Tags:NjRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
79
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for the window
Creating a file in the %temp% subdirectories
Running batch commands
Creating a process from a recently created file
Creating a file
Creating a process with a hidden window
Connection attempt
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
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.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/533473
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
Creates autostart registry keys with suspicious names
Detected njRat
Machine Learning detection for dropped file
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
Uses netsh to modify the Windows network and firewall settings
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 315841 Sample: oDTte8okbn Startdate: 13/11/2020 Architecture: WINDOWS Score: 100 55 Malicious sample detected (through community Yara rule) 2->55 57 Multi AV Scanner detection for submitted file 2->57 59 Detected njRat 2->59 61 6 other signatures 2->61 11 oDTte8okbn.exe 13 2->11         started        14 Update[SC102523232].exe 3 2->14         started        16 Update[SC102523232].exe 2 2->16         started        18 Update[SC102523232].exe 2 2->18         started        process3 file4 41 C:\Users\user\AppData\...\WinSys.sfx.exe, PE32 11->41 dropped 20 cmd.exe 1 11->20         started        process5 process6 22 WinSys.sfx.exe 9 20->22         started        25 conhost.exe 20->25         started        file7 39 C:\Users\user\AppData\Local\...\WinSys.exe, PE32 22->39 dropped 27 WinSys.exe 1 5 22->27         started        process8 file9 43 C:\Users\user\...\Update[SC102523232].exe, PE32 27->43 dropped 63 Antivirus detection for dropped file 27->63 65 Multi AV Scanner detection for dropped file 27->65 67 Machine Learning detection for dropped file 27->67 31 Update[SC102523232].exe 4 4 27->31         started        signatures10 process11 dnsIp12 45 104.236.139.113, 1604 DIGITALOCEAN-ASNUS United States 31->45 47 Antivirus detection for dropped file 31->47 49 Multi AV Scanner detection for dropped file 31->49 51 Machine Learning detection for dropped file 31->51 53 Creates autostart registry keys with suspicious names 31->53 35 netsh.exe 1 3 31->35         started        signatures13 process14 process15 37 conhost.exe 35->37         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f41a867263b1d1e3c4d235614eb3f558a9fb783b4babeff95c75a799b435b8f0/
Threat name:
Win32.Dropper.Slipafext
Create hunting rule
Status:
Malicious
First seen:
2020-11-12 14:40:31 UTC
AV detection:
18 of 29 (62.07%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6qnim4tdwhi6hrgsgvqu5m7vlcu7w6b3jov676k4owtztnbvxdya._file
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat evasion persistence trojan
Link:
https://tria.ge/reports/201112-dhnd3yh5sj/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Modifies service
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Modifies Windows Firewall
njRAT/Bladabindi
Unpacked files
SH256 hash:
f41a867263b1d1e3c4d235614eb3f558a9fb783b4babeff95c75a799b435b8f0
MD5 hash:
4d3ed0a582ab33e05c8ec7f1fc7c7689
SHA1 hash:
db0aa09615f9a570783780588494e613a68a4dff
Link:
https://www.unpac.me/results/2fa07701-04b0-46e0-af87-bc3b9ace025a/
SH256 hash:
24549e26a1a6eaa59717e5ee6bb6cf19bdc7aed92b3e383a968c34777d8a8cd5
MD5 hash:
2b0334206c3cc6575ec30a493fbb504a
SHA1 hash:
ba728b56e841c06471089b93f126906dbf56f0f1
Detections:
win_njrat_w1
Create hunting rule
win_njrat_g1
Create hunting rule
Link:
https://www.unpac.me/results/2fa07701-04b0-46e0-af87-bc3b9ace025a/
Parent samples :
09f671389b1751b349057fbb454c9a8263e95fbb8af54f47a016abad4a925472
f41a867263b1d1e3c4d235614eb3f558a9fb783b4babeff95c75a799b435b8f0
Please note that we are no longer able to provide a coverage score for Virus Total.

File information

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

  
Delivery method
Other

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