MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5f1eaaa7781758b4830a2c576234d1687f95c1b058b48d833a4d71f2fa970d6b. 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 22 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5f1eaaa7781758b4830a2c576234d1687f95c1b058b48d833a4d71f2fa970d6b
SHA3-384 hash: 8c966cf9428399a93852f3f25ebd4c094b46f9b4d2e96de6ab830f929a6d278300d286dde349eadd4f56842313d5791b
SHA1 hash: 8448937d6dcd4868082a2e09fd6ff582d9c73c70
MD5 hash: 59b40a406af1b307f204b246371db9bf
humanhash: south-butter-lima-zulu
File name:am.exe
Download: download sample
Signature njrat
Create hunting rule
File size:95'232 bytes
First seen:2025-02-05 07:57:59 UTC
Last seen:2025-02-05 08:00:46 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'854 x AgentTesla, 19'783 x Formbook, 12'304 x SnakeKeylogger)
ssdeep 768:WY3TmdD9O/pBcxYsbae6GIXb9pDX2KC98PL0OXLeuXxrjEtCdnl2pi1Rz4Rk3Y7E:hm3Ox6baIa9R/j00ljEwzGi1dDuD6gS
Threatray 513 similar samples on MalwareBazaar
TLSH T1D893E84977E56524E4BF56F79871F2004E34B44B1602E39D48F219AA1B33AC44F8AFEB
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10522/11/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter lontze7
Tags:exe NjRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
567
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
njrat
Create hunting rule
ID:
1
File name:
am.exe
Verdict:
Malicious activity
Analysis date:
2025-02-05 08:43:26 UTC
Tags:
njrat
Link:
https://app.any.run/tasks/50d1ee5c-8550-4962-9247-7333e89ee900

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Generic-9795615-0
Create hunting rule

Win.Dropper.njRAT-10015886-0
Create hunting rule

Win.Dropper.Nanocore-10030076-0
Create hunting rule

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

Win.Trojan.B-468
Create hunting rule

Win.Trojan.Ratenjay-1
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67a31bc951193558eb196f7a
Tags:
bladabindi autorun njrat
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Creating a file in the %AppData% directory
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
Enabling the 'hidden' option for files in the %temp% directory
Modifying an executable file
Launching the process to change network settings
Launching a process
Searching for synchronization primitives
Connection attempt
Unauthorized injection to a recently created process
Launching the process to change the firewall settings
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm cmd evasive explorer fingerprint lolbin msconfig netsh njrat obfuscated obfuscated rat rundll32 schtasks update vbnet windows winnti
Link:
https://www.filescan.io/uploads/67a31a17ff13b3c5561b79f5/reports/805d7dd9-59e0-4490-89a9-6d8e7d1688b9/overview
Verdict:
Malicious
Labled as:
MSIL.Krypt.Generic
Link:
https://www.hybrid-analysis.com/sample/5f1eaaa7781758b4830a2c576234d1687f95c1b058b48d833a4d71f2fa970d6b
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.
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3b106d1e-0f3b-4881-85dc-1e0346102b92
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
spre.phis.troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1607229
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to disable the Task Manager (.Net Source)
Contains functionality to spread to USB devices (.Net source)
Disables zone checking for all users
Drops PE files to the startup folder
Found malware configuration
Joe Sandbox ML detected suspicious sample
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
Uses netsh to modify the Windows network and firewall settings
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1607229 Sample: am.exe Startdate: 05/02/2025 Architecture: WINDOWS Score: 100 53 Found malware configuration 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 Antivirus detection for dropped file 2->57 59 10 other signatures 2->59 8 am.exe 7 2->8         started        11 StUpdate.exe 2->11         started        14 Microsoft Corporation.exe 3 2->14         started        16 4 other processes 2->16 process3 file4 47 C:\Users\user\AppData\Local\Temp\server.exe, PE32 8->47 dropped 49 C:\Users\user\AppData\Local\...\am.exe.log, ASCII 8->49 dropped 18 server.exe 1 8 8->18         started        69 Antivirus detection for dropped file 11->69 71 Multi AV Scanner detection for dropped file 11->71 73 Machine Learning detection for dropped file 11->73 signatures5 process6 dnsIp7 51 192.168.1.15, 49706, 5552, 59905 unknown unknown 18->51 39 C:\Users\user\...\Microsoft Corporation.exe, PE32 18->39 dropped 41 522259726718d1753f...5Windows Update.exe, PE32 18->41 dropped 43 C:\Users\user\AppData\Local\...\StUpdate.exe, PE32 18->43 dropped 45 C:45otepad.exe, PE32 18->45 dropped 61 Antivirus detection for dropped file 18->61 63 Multi AV Scanner detection for dropped file 18->63 65 Machine Learning detection for dropped file 18->65 67 5 other signatures 18->67 23 netsh.exe 2 18->23         started        25 netsh.exe 2 18->25         started        27 netsh.exe 2 18->27         started        29 schtasks.exe 1 18->29         started        file8 signatures9 process10 process11 31 conhost.exe 23->31         started        33 conhost.exe 25->33         started        35 conhost.exe 27->35         started        37 conhost.exe 29->37         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/5f1eaaa7781758b4830a2c576234d1687f95c1b058b48d833a4d71f2fa970d6b
Detection:
njrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5f1eaaa7781758b4830a2c576234d1687f95c1b058b48d833a4d71f2fa970d6b/
Threat name:
ByteCode-MSIL.Backdoor.njRAT
Create hunting rule
Status:
Malicious
First seen:
2025-02-05 07:58:13 UTC
File Type:
PE (.Net Exe)
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=l4pkvj3yc5mljaykfrlwengrnb7zlqnqlc2i3az2jvy7f6uxbvvq._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
06b314e6e7127b58bdafcd05252a28af38233afe2b188584eb4d27ab372c8762
njrat
4f3b8d1cfa5d84f0eaa63da7af72f0f8d844d2130bdd5324b97d508985bf8748
njrat
60e7f5996d69fb22c55c4b6e25cb881ab49a46f3714a42d35dc6f3a66f853498
njrat
a406d9895911ac26f41f77b6280e09409ea084a1d130cdc7f766528e8335dd01
njrat
ab6b0c8a2fd898517ff036b9fc94ce581febdab5a69433f491fb70bc55ee1833
njrat
bf8b455cc351263446a8a1afc1f2461d2cbcfca273aaa6be24c22afacd6f281a
njrat
cf0e4d62de51c2185b7c0eb600ec9d13855fa07e6ca7f31774f5a49d61408e40
njrat
error
njrat
f39eb3c952eb90f63ffdac11c6721c4f434bb052957aa6178c2e0fe9529f2bf6
njrat
+ 503 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:bavilla defense_evasion discovery persistence privilege_escalation trojan
Link:
https://tria.ge/reports/250205-jtw3tsypfj/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Event Triggered Execution: Netsh Helper DLL
System Location Discovery: System Language Discovery
Checks computer location settings
Drops startup file
Executes dropped EXE
Loads dropped DLL
Modifies Windows Firewall
Njrat family
njRAT/Bladabindi
Malware Config
C2 Extraction:
hakim32.ddns.net:2000
192.168.1.15:5552
Verdict:
Unknown
Tags:
rat njrat
YARA:
malware_Njrat_strings win_njrat_strings_oct_2023 Windows_Trojan_Njrat_30f3c220 Windows_Trojan_Njrat_eb2698d2 MAL_Njrat MALWARE_Win_NjRAT JPCERTCC_Njrat
Link:
https://app.threat.zone/submission/4937d4be-7754-4d78-a191-a41e2d247d26
Unpacked files
SH256 hash:
5f1eaaa7781758b4830a2c576234d1687f95c1b058b48d833a4d71f2fa970d6b
MD5 hash:
59b40a406af1b307f204b246371db9bf
SHA1 hash:
8448937d6dcd4868082a2e09fd6ff582d9c73c70
Link:
https://www.unpac.me/results/92849319-89b3-4309-aba9-e8a910022b89/
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/5f1eaaa77817/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/5f1eaaa7781758b4830a2c576234d1687f95c1b058b48d833a4d71f2fa970d6b

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:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
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:MAL_Winnti_Sample_May18_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects malware sample from Burning Umbrella report - Generic Winnti Rule
Reference:https://401trg.pw/burning-umbrella/
Rule name:MAL_Winnti_Sample_May18_1_RID3003
Create hunting rule
Author:Florian Roth
Description:Detects malware sample from Burning Umbrella report - Generic Winnti Rule
Reference:https://401trg.pw/burning-umbrella/
Rule name:Mal_WIN_NjRAT_RAT_PE
Create hunting rule
Author:Phatcharadol Thangplub
Description:Use to detect NjRAT implant.
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:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:Njrat
Create hunting rule
Author:botherder https://github.com/botherder
Description:Njrat
Rule name:Njrat
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect njRAT in memory
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
Author:Elastic Security
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule
Rule name:Windows_Trojan_Njrat_eb2698d2
Create hunting rule
Author:Elastic Security
Rule name:win_njrat_strings_oct_2023
Create hunting rule
Author:Matthew @ Embee_Research

File information

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

Web download

njrat

Executable exe 5f1eaaa7781758b4830a2c576234d1687f95c1b058b48d833a4d71f2fa970d6b

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3428505/
  
URLhaus
https://urlhaus.abuse.ch/url/3428508/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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