MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 42d62bb8089d2e7100cb9ab26e752f6df954000be759c26908a0b333e5412500. 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: 7


Intelligence 7 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 42d62bb8089d2e7100cb9ab26e752f6df954000be759c26908a0b333e5412500
SHA3-384 hash: 3bb6f1bea0261d16e613a5dea95f6ea904c13c45712708dffb3589ad412165320569d8887633e35bb5f77d480dfe733e
SHA1 hash: c6f72bb1fb69d2a9c7b8ed6bfafe2d7b28e73709
MD5 hash: 5b29ae33fa0cab13577618fe58ede51a
humanhash: sodium-robert-princess-oven
File name:42d62bb8089d2e7100cb9ab26e752f6df954000be759c26908a0b333e5412500
Download: download sample
Signature njrat
Create hunting rule
File size:511'325 bytes
First seen:2020-11-11 11:30:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash fcf1390e9ce472c7270447fc5c61a0c1 (863 x DCRat, 118 x NanoCore, 94 x njrat)
ssdeep 6144:g1OgjHRnPd4iispBFIQlYG2ugwq8cvTkBXUFUUNP6IQgqhJFuBr2QiI:pgpWiis5VlvLq8cvwBSPf0PGrP
Threatray 409 similar samples on MalwareBazaar
TLSH FAB4B001EB81ECB7E1A265318A091F9D9B7235208E68671577F94ADF8F6C6401E34FE3
Reporter seifreed
Tags:NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
74
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
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
Creating a process with a hidden window
Connection attempt
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
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:
100 / 100
Link:
https://www.joesandbox.com/analysis/532569
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
Drops PE files to the startup folder
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
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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: 315385 Sample: RR9vUN19dw Startdate: 12/11/2020 Architecture: WINDOWS Score: 100 51 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 Antivirus detection for dropped file 2->55 57 10 other signatures 2->57 11 RR9vUN19dw.exe 1 13 2->11         started        14 server.exe 2 2->14         started        16 server.exe 2 2->16         started        18 server.exe 2 2->18         started        process3 file4 45 C:\Users\user\AppData\Local\Temp\...\000.exe, PE32 11->45 dropped 20 cmd.exe 1 11->20         started        process5 process6 22 000.exe 1 9 20->22         started        26 conhost.exe 20->26         started        file7 43 C:\Users\user\AppData\Local\...\Server.exe, PE32 22->43 dropped 67 Multi AV Scanner detection for dropped file 22->67 28 Server.exe 1 5 22->28         started        signatures8 process9 file10 47 C:\Users\user\AppData\Roaming\server.exe, PE32 28->47 dropped 69 Antivirus detection for dropped file 28->69 71 Multi AV Scanner detection for dropped file 28->71 73 Machine Learning detection for dropped file 28->73 32 server.exe 2 5 28->32         started        signatures11 process12 dnsIp13 49 192.168.1.65, 7777 unknown unknown 32->49 41 C:\...\e1ff9fa41877bbbbcfd97c7b5e079246.exe, PE32 32->41 dropped 59 Antivirus detection for dropped file 32->59 61 Multi AV Scanner detection for dropped file 32->61 63 Machine Learning detection for dropped file 32->63 65 2 other signatures 32->65 37 netsh.exe 1 3 32->37         started        file14 signatures15 process16 process17 39 conhost.exe 37->39         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/42d62bb8089d2e7100cb9ab26e752f6df954000be759c26908a0b333e5412500/
Threat name:
Win32.Trojan.Rasftuby
Create hunting rule
Status:
Malicious
First seen:
2020-11-11 11:33:13 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=illcxoaituxhcagltkzg45jpnx4viaal45m4e2iiuczthzkbeuaa._file
Verdict:
malicious
Similar samples:
1292e5a45426d40909dc8199da5fc6346a4b8a652baff6bacee9e64bb253f16c
njrat
22624e441ebb33943e4c72b4f4c3b625b0f7ec3d8b2afada33a92771144b0373
njrat
2a22805bbe73a869fc9240d722d6cfb22c582683918103bda90f3a321756c44d
njrat
2d6a60fa56688f81b3b1ecebf2eb1ae9b44f41a9e070916c93e3f85dd841d174
njrat
329c2259d6015d98464322b873b783d18da6ac1a13d7ec40d1de9f143659b1bb
njrat
6cb0c6c55411375878184fba0feeee93c99c7f184818449e548ef875486ec38a
njrat
8b2c5362887dbc350aae004bee2ea50b83aee63bdb1d88c2559672e9ca5b91d5
njrat
a43c0d39f01808746f82c041edad38edbb89334c098311331d3e2733824f6259
njrat
ed34d4eba0bc7d434f32bb9bca0147632592656ddf0c2aa892fbee54b0850ff1
njrat
ffe8dbc4f815fe713c790a19b5122c79d1de9c817f10edf7d86ca297175ce439
njrat
+ 399 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
evasion persistence
Link:
https://tria.ge/reports/201111-mgwdycp3be/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Modifies service
Adds Run key to start application
Drops startup file
Loads dropped DLL
Executes dropped EXE
Modifies Windows Firewall
Unpacked files
SH256 hash:
42d62bb8089d2e7100cb9ab26e752f6df954000be759c26908a0b333e5412500
MD5 hash:
5b29ae33fa0cab13577618fe58ede51a
SHA1 hash:
c6f72bb1fb69d2a9c7b8ed6bfafe2d7b28e73709
Link:
https://www.unpac.me/results/a68cce41-3cb8-489b-9fe7-e61b41f481d6/
SH256 hash:
eabf1083eed3f0611a8849bfa685ac37fbdecfc3a58f7819d28b426b47635e25
MD5 hash:
c979bf5022a4093ecc55a59400372715
SHA1 hash:
7fa832ab43f88a5e4ed70168c20f3b247270fd16
Link:
https://www.unpac.me/results/a68cce41-3cb8-489b-9fe7-e61b41f481d6/
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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