MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0b5c1b777491d7f267bdb5b1eb6e687323799f85ea5eac44f3db11a84c7f505c. 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: 18


Intelligence 18 IOCs YARA 25 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0b5c1b777491d7f267bdb5b1eb6e687323799f85ea5eac44f3db11a84c7f505c
SHA3-384 hash: 1b74768d9703942093006295b38e1c44c88d9fcf1a319b5ce74c6e82a67e968abc151f8372f1d6aa5ad04897df0d18e2
SHA1 hash: 82dc07b2094d8aa1b9a51cf5ccc673c106081904
MD5 hash: ee78fede5ea55dcce49fefb3c7e13537
humanhash: xray-equal-burger-pennsylvania
File name:stub.exe
Download: download sample
Signature njrat
Create hunting rule
File size:974'848 bytes
First seen:2025-12-04 13:33:44 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:uXUeAxJzck+uGW/yFoBkkAQqOaxeT/tp:uXUeATYjqqanTB7T/t
TLSH T11625C0A173F4851AE1FF1BB4E4B149494BB7B9529A36DB4F4D8890AD1EB37408F103A3
TrID 62.2% (.RLL) Microsoft Resource Library (x86) (177572/6/26)
25.6% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
3.6% (.EXE) Win64 Executable (generic) (10522/11/4)
2.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
1.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika pebin
Reporter burger
Tags:exe NjRAT RAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
105
Origin country :
NL NL
Vendor Threat Intelligence
Malware configuration found for:
QuasarRAT
Details
Link:
https://research.acce.ciphertechsolutions.com/results/dbe343a1-2858-41e2-80e9-d66c45c8e21a/
Malware family:
n/a
ID:
1
File name:
stub.exe
Verdict:
Malicious activity
Analysis date:
2025-12-04 13:33:21 UTC
Tags:
pulsar rat crypto-regex
Link:
https://app.any.run/tasks/aac0a06f-d8a3-41fc-9081-4249380fa645

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/42478/
Detection(s):
Win.Malware.Generic-9883083-0
Create hunting rule

Win.Malware.Bulz-9933026-0
Create hunting rule

Win.Malware.Generic-6623004-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69318da07d831e2f70c8f325
Tags:
vmdetect emotet quasar
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/0b5c1b777491d7f267bdb5b1eb6e687323799f85ea5eac44f3db11a84c7f505c
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-12-04T10:34:00Z UTC
Last seen:
2025-12-05T22:02:00Z UTC
Hits:
~10
Detections:
HEUR:Trojan.Win32.Generic Backdoor.MSIL.PulsarRAT.sb Trojan-PSW.MSIL.Agent.sb Trojan.MSIL.Agent.sb HEUR:Trojan-Banker.MSIL.ClipBanker.gen
Link:
https://opentip.kaspersky.com/0b5c1b777491d7f267bdb5b1eb6e687323799f85ea5eac44f3db11a84c7f505c/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e2d6984d-622a-4959-9fba-5f23faf63f0e
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1826356
Signature
.NET source code contains potential unpacker
Connects to many ports of the same IP (likely port scanning)
Contains functionality to disable the Task Manager (.Net Source)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Sample uses string decryption to hide its real strings
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AntiVM3
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/0b5c1b777491d7f267bdb5b1eb6e687323799f85ea5eac44f3db11a84c7f505c
Verdict:
njRat
YARA:
16 match(es)
Tags:
.Net Executable Fody/Costura Packer Html Managed .NET njRat PDB Path PE (Portable Executable) PE File Layout RAT SOS: 0.14 SOS: 0.15 SOS: 0.17 SOS: 0.18 SOS: 0.23 SOS: 0.24 SOS: 0.25 SOS: 0.26 SOS: 0.61 Win 32 Exe x86
Link:
https://app.malva.re/file/ee78fede5ea55dcce49fefb3c7e13537
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0b5c1b777491d7f267bdb5b1eb6e687323799f85ea5eac44f3db11a84c7f505c/
Verdict:
Malicious
Threat:
Family.QUASAR
Link:
https://tip.neiki.dev/file/0b5c1b777491d7f267bdb5b1eb6e687323799f85ea5eac44f3db11a84c7f505c
Threat name:
ByteCode-MSIL.Hacktool.Aikaantivm
Create hunting rule
Status:
Malicious
First seen:
2025-12-04 13:33:22 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
22 of 24 (91.67%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=bnobw53ushl7ez55wwy6w3tiomrxth4f5jpkyrht3mi2qtd7kboa._file
Verdict:
malicious
Label(s):
quasarrat
Create hunting rule
Similar samples:
error
njrat
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar spyware trojan
Link:
https://tria.ge/reports/251204-qt7mwsxjfz/
Behaviour
Suspicious behavior: AddClipboardFormatListener
Suspicious use of AdjustPrivilegeToken
Quasar RAT
Quasar family
Quasar payload
Verdict:
Malicious
Tags:
red_team_tool rat quasar_rat backdoor backnet Win.Malware.Generic-9883083-0
YARA:
HKTL_EXE_AlKhaser_Jul_01 malware_windows_quasarrat MAL_BackNet_Nov18_1
Link:
https://app.threat.zone/submission/64690433-7fae-408d-95c1-c2a7f62fa089
Unpacked files
SH256 hash:
0b5c1b777491d7f267bdb5b1eb6e687323799f85ea5eac44f3db11a84c7f505c
MD5 hash:
ee78fede5ea55dcce49fefb3c7e13537
SHA1 hash:
82dc07b2094d8aa1b9a51cf5ccc673c106081904
Detections:
QuasarRAT
Create hunting rule
Link:
https://www.unpac.me/results/ee0661ec-4b32-49a5-98e6-01597a79b8eb/
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/0b5c1b777491/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.77
Link:
https://yomi.yoroi.company/submissions/0b5c1b777491d7f267bdb5b1eb6e687323799f85ea5eac44f3db11a84c7f505c

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:Check_Dlls
Create hunting rule
Rule name:Check_VBox_Guest_Additions
Create hunting rule
Rule name:Check_VmTools
Create hunting rule
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_EXE_Packed_Fody
Create hunting rule
Author:ditekSHen
Description:Detects executables manipulated with Fody
Rule name:Indicator_MiniDumpWriteDump
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects PE files and PowerShell scripts that use MiniDumpWriteDump either through direct imports or string references
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Rule name:MAL_BackNet_Nov18_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects BackNet samples
Reference:https://github.com/valsov/BackNet
Rule name:MAL_BackNet_Nov18_1_RID2D6D
Create hunting rule
Author:Florian Roth
Description:Detects BackNet samples
Reference:https://github.com/valsov/BackNet
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Create hunting rule
Author:malware-lu
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:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

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/42478/

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