MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6b861003033b84ab1b332417073bee2a0740478c1ee7fe93529a167f46262dfd. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6b861003033b84ab1b332417073bee2a0740478c1ee7fe93529a167f46262dfd
SHA3-384 hash: 693e78e7bc34f5d7faba94d55e4496dba19eca38f6adacba1126bd2740f08d5359bf224bb0dcbe1119a064a26e86a7e0
SHA1 hash: 080a6aa80e792c0a4a4452d8de58b83b18f744cc
MD5 hash: b13d35c851b1377b2ebae4638d89aca0
humanhash: utah-twenty-blue-bakerloo
File name:tBEp4Pum.exe
Download: download sample
Signature njrat
Create hunting rule
File size:367'104 bytes
First seen:2020-10-30 02:49:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 6144:ITrE1JXvgSMBnQw7vVug1GMFlZA9GdksYU:ITrEASiRVXzksp
Threatray 5 similar samples on MalwareBazaar
TLSH 16749E483BE58D11D2FD0BBE4AB4F2115734B9572F53C79E2AE0B5992F337808E506A2
Reporter pmelson
Tags:Coringa exe NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
116
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Bladabindi
Create hunting rule
Link:
https://www.capesandbox.com/analysis/81135/
Detection(s):
Win.Trojan.B-468
Create hunting rule

Win.Trojan.Bladabindi-6192388-0
Create hunting rule

Win.Trojan.Generic-6417450-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the %temp% subdirectories
Creating a process from a recently created file
Creating a file
Creating a process with a hidden window
Launching a process
Launching a service
DNS request
Connection attempt
Unauthorized injection to a recently created process
Launching the process to change the firewall settings
Enabling autorun for a service
Enabling autorun by creating a file
Result
Threat name:
Unknown
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/516695
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
Contains functionality to disable the Task Manager (.Net Source)
Contains functionality to log keystrokes (.Net Source)
Drops PE files with benign system names
Machine Learning detection for dropped file
Machine Learning detection for sample
Modifies the windows firewall
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: System File Execution Location Anomaly
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 307452 Sample: tBEp4Pum.exe Startdate: 30/10/2020 Architecture: WINDOWS Score: 100 45 Antivirus / Scanner detection for submitted sample 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 .NET source code contains potential unpacker 2->49 51 9 other signatures 2->51 8 tBEp4Pum.exe 2 7 2->8         started        12 StUpdate.exe 3 2->12         started        14 StUpdate.exe 2 2->14         started        16 StUpdate.exe 2 2->16         started        process3 file4 41 C:\Users\user\AppData\Local\...\explorer.exe, PE32 8->41 dropped 59 Drops PE files with benign system names 8->59 18 explorer.exe 3 8->18         started        61 Antivirus detection for dropped file 12->61 63 Multi AV Scanner detection for dropped file 12->63 65 Machine Learning detection for dropped file 12->65 23 MpCmdRun.exe 1 12->23         started        signatures5 process6 dnsIp7 43 dudu99238.duckdns.org 141.255.144.0, 1177 IELOIELOMainNetworkFR France 18->43 39 C:\Users\user\AppData\Local\...\StUpdate.exe, PE32 18->39 dropped 53 Antivirus detection for dropped file 18->53 55 Multi AV Scanner detection for dropped file 18->55 57 Machine Learning detection for dropped file 18->57 25 netsh.exe 3 18->25         started        27 netsh.exe 1 3 18->27         started        29 schtasks.exe 1 18->29         started        31 conhost.exe 23->31         started        file8 signatures9 process10 process11 33 conhost.exe 25->33         started        35 conhost.exe 27->35         started        37 conhost.exe 29->37         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6b861003033b84ab1b332417073bee2a0740478c1ee7fe93529a167f46262dfd/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2018-03-08 04:04:23 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
27 of 29 (93.10%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=nodbaaydhockwgzteqlqoo7ofiduar4md3t75e2stilh6rrgfx6q._file
Verdict:
malicious
Similar samples:
2e8bf71c74ee4ab9870221bef7ab4285aa8a5cb5f0e0b11bff19a5bcb5033351
njrat
5bbd62c5547df4ee80f29e38406b0db7f94b4378c0d8ffe3f3a3d442c0680849
njrat
5cb1c07a56ce3bd1a4b3828f508c5aaba1aebd1dab0bd9566f41603481827876
njrat
6b07f1ed1f462483588f2c244391c5fd4b9802193479fe77de04382868a4bc23
njrat
ceb4b4cc24736719467798139e2a0dace416e80bb0ea146bfd26c4b75faeed20
njrat
Result
Malware family:
n/a
Score:
  8/10
Tags:
evasion persistence
Link:
https://tria.ge/reports/201030-gvdvyq3yas/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Modifies service
Loads dropped DLL
Executes dropped EXE
Modifies Windows Firewall
Please note that we are no longer able to provide a coverage score for Virus Total.

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:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog

File information

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

Web download

njrat

Executable exe 6b861003033b84ab1b332417073bee2a0740478c1ee7fe93529a167f46262dfd

(this sample)

  
Link
https://www.virustotal.com/gui/file/6b861003033b84ab1b332417073bee2a0740478c1ee7fe93529a167f46262dfd/detection
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/81135/

Comments