MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7746fe1edf7d4870afa63058d81a2392176c6a869114da74bf2d25e3f12e81d0. 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: 17


Intelligence 17 IOCs YARA 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7746fe1edf7d4870afa63058d81a2392176c6a869114da74bf2d25e3f12e81d0
SHA3-384 hash: 7949b56c72de3264e45f5b363a540756e06759726d7441d35fde002b82dc4e0bd99f2a8f7e5f3483f5d1feec042d1b51
SHA1 hash: dcca9287133834459cae17d852885137db0459c0
MD5 hash: c84f89f8dc0ed0a09db3d4eaaa21b903
humanhash: football-batman-romeo-ten
File name:bTkt.exe
Download: download sample
Signature njrat
Create hunting rule
File size:24'064 bytes
First seen:2024-01-26 04:07:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 384:rsqS+ER6vRKXGYKRWVSujUtX9w6Dglo61Z5DVmRvR6JZlbw8hqIusZzZ4m:Af65K2Yf1jKRpcnuk
TLSH T102B22C4E3FA98856C9BC17748AB5965003B4D1470423EE2FCCD554CBAFB3AD92D48AF8
TrID 59.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.6% (.SCR) Windows screen saver (13097/50/3)
8.5% (.EXE) Win64 Executable (generic) (10523/12/4)
5.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter pmelson
Tags:exe NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
383
Origin country :
US US
Vendor Threat Intelligence
Malware family:
njrat
Create hunting rule
ID:
1
File name:
7746fe1edf7d4870afa63058d81a2392176c6a869114da74bf2d25e3f12e81d0.exe
Verdict:
Malicious activity
Analysis date:
2024-01-26 04:08:33 UTC
Tags:
rat njrat bladabindi
Link:
https://app.any.run/tasks/3e8fc89b-e983-4aff-884c-eb69c5ac1a35

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/472981/
Detection(s):
Win.Packed.Generic-9795615-0
Create hunting rule

Win.Packed.Generic-9795616-0
Create hunting rule

Win.Dropper.njRAT-10015886-0
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.Packed.Bladabindi-6804148-0
Create hunting rule

Win.Trojan.B-468
Create hunting rule

Win.Trojan.Ratenjay-1
Create hunting rule

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

Win.Packed.Bladabindi-6917466-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Creating a process with a hidden window
Creating a window
Searching for synchronization primitives
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
Query of malicious DNS domain
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
keylogger njrat rat
Link:
https://www.filescan.io/uploads/65b33023fc0458d7ffdbe183/reports/0dd7d063-ca32-467a-b6a0-f2bfdfd09092/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/7746fe1edf7d4870afa63058d81a2392176c6a869114da74bf2d25e3f12e81d0
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/eca4b947-cc12-4b77-9660-194e6ee0bfc6
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
phis.troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1381485
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
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
Creates autostart registry keys with suspicious names
Disables zone checking for all users
Drops PE files to the startup folder
Found malware configuration
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
Uses dynamic DNS services
Uses netsh to modify the Windows network and firewall settings
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1381485 Sample: bTkt.exe Startdate: 26/01/2024 Architecture: WINDOWS Score: 100 31 spykronic.duckdns.org 2->31 35 Found malware configuration 2->35 37 Malicious sample detected (through community Yara rule) 2->37 39 Antivirus detection for URL or domain 2->39 43 11 other signatures 2->43 9 bTkt.exe 1 5 2->9         started        12 server.exe 3 2->12         started        14 server.exe 2 2->14         started        16 server.exe 2 2->16         started        signatures3 41 Uses dynamic DNS services 31->41 process4 file5 29 C:\Users\user\AppData\Local\Temp\server.exe, PE32 9->29 dropped 18 server.exe 4 5 9->18         started        process6 dnsIp7 33 spykronic.duckdns.org 168.232.70.149, 1177 LigueTelecomunicacoesLtdaBR Brazil 18->33 27 C:\...\1ee3c79889d2b28c3ab742ae768ba98c.exe, PE32 18->27 dropped 45 Antivirus detection for dropped file 18->45 47 Multi AV Scanner detection for dropped file 18->47 49 Protects its processes via BreakOnTermination flag 18->49 51 6 other signatures 18->51 23 netsh.exe 2 18->23         started        file8 signatures9 process10 process11 25 conhost.exe 23->25         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/7746fe1edf7d4870afa63058d81a2392176c6a869114da74bf2d25e3f12e81d0
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7746fe1edf7d4870afa63058d81a2392176c6a869114da74bf2d25e3f12e81d0/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2024-01-26 04:08:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
23 of 23 (100.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=o5dp4hw7pvehbl5ggbmnqgrdsilwy2ugseknu5f7fus6h4joqhia._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:hacked evasion persistence trojan
Link:
https://tria.ge/reports/240126-ep8hvadgf6/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Adds Run key to start application
Checks computer location settings
Drops startup file
Executes dropped EXE
Loads dropped DLL
Modifies Windows Firewall
njRAT/Bladabindi
Malware Config
C2 Extraction:
spykronic.duckdns.org:1177
Unpacked files
SH256 hash:
7746fe1edf7d4870afa63058d81a2392176c6a869114da74bf2d25e3f12e81d0
MD5 hash:
c84f89f8dc0ed0a09db3d4eaaa21b903
SHA1 hash:
dcca9287133834459cae17d852885137db0459c0
Detections:
NjRat
Create hunting rule
win_njrat_w1
Create hunting rule
win_njrat_g1
Create hunting rule
Njrat
Create hunting rule
MALWARE_Win_NjRAT
Create hunting rule
CN_disclosed_20180208_c
Create hunting rule
Link:
https://www.unpac.me/results/51cc5d81-2631-44be-a305-be1547a33d68/
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/7746fe1edf7d/report/overview.html
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/7746fe1edf7d4870afa63058d81a2392176c6a869114da74bf2d25e3f12e81d0

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:CN_disclosed_20180208_c
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects malware from disclosed CN malware set
Reference:https://twitter.com/cyberintproject/status/961714165550342146
Rule name:CN_disclosed_20180208_c_RID2E71
Create hunting rule
Author:Florian Roth
Description:Detects malware from disclosed CN malware set
Reference:https://twitter.com/cyberintproject/status/961714165550342146
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:malware_Njrat_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect njRAT in memory
Rule name:MALWARE_Win_NjRAT
Create hunting rule
Author:ditekSHen
Description:Detects NjRAT / Bladabindi / NjRAT Golden
Rule name:MAL_njrat
Create hunting rule
Author:SECUINFRA Falcon Team
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:Njrat
Create hunting rule
Author:botherder https://github.com/botherder
Description:Njrat
Rule name:pe_imphash
Create hunting rule
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:SUSP_netsh_firewall_command
Create hunting rule
Author:SECUINFRA Falcon Team
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule
Author:Elastic Security
Rule name:win_njrat_bytecodes_oct_2023
Create hunting rule
Author:Matthew @ Embee_Research
Rule name:win_njrat_strings_oct_2023
Create hunting rule
Author:Matthew @ Embee_Research
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 7746fe1edf7d4870afa63058d81a2392176c6a869114da74bf2d25e3f12e81d0

(this sample)

  
Link
https://www.virustotal.com/gui/file/7746fe1edf7d4870afa63058d81a2392176c6a869114da74bf2d25e3f12e81d0/detection
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/472981/

Comments