MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 554f40d4d4e6d80d96c5fc1b41afb7268a0b09b375adc3bcb1e10b1ff2eed986. 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 20 File information Comments
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SHA256 hash: 554f40d4d4e6d80d96c5fc1b41afb7268a0b09b375adc3bcb1e10b1ff2eed986
SHA3-384 hash: 48be67955dc2adf46987166d599455642ead1e126d450bf30d305bd98352d365a0fb537b05825dba93d557c58045801a
SHA1 hash: 138aa012bb3b20a79aaf016af172a1b3106a7304
MD5 hash: 3eb8c476c0abcd01fdb799de83503e12
humanhash: jersey-snake-nineteen-april
File name:3eb8c476c0abcd01fdb799de83503e12.exe
Download: download sample
Signature njrat
Create hunting rule
File size:162'304 bytes
First seen:2024-04-28 16:06:00 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 6bac3cfe8acb6c6c4a30aaa022de2388 (308 x AveMariaRAT, 7 x njrat, 7 x Skeeeyah)
ssdeep 3072:tf/J2ULiTehI8FrkZTFieSzoSUYSziUP0ZMJG:32UL2i9FKFHd4SziUP0
Threatray 267 similar samples on MalwareBazaar
TLSH T191F312E993BC04B5F161BA3E3A39574A2466EC3F4FE7C56A5F4CF21B185A0004368E36
TrID 34.7% (.EXE) UPX compressed Win32 Executable (27066/9/6)
34.1% (.EXE) Win32 EXE Yoda's Crypter (26569/9/4)
8.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.7% (.EXE) Win32 Executable (generic) (4504/4/1)
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
178.128.228.252:5552

Intelligence

File Origin
# of uploads :
1
# of downloads :
451
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
njrat
Create hunting rule
ID:
1
File name:
554f40d4d4e6d80d96c5fc1b41afb7268a0b09b375adc3bcb1e10b1ff2eed986.exe
Verdict:
Malicious activity
Analysis date:
2024-04-28 16:06:45 UTC
Tags:
rat njrat bladabindi remote
Link:
https://app.any.run/tasks/b6d87707-2f85-4aea-80f6-c963fdc0f63b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Running batch commands
Creating a process with a hidden window
Forced system process termination
Enabling the 'hidden' option for analyzed file
Launching cmd.exe command interpreter
Unauthorized injection to a recently created process
Replacing executable files
Restart of the analyzed sample
Moving of the original file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed packed poison razy
Link:
https://www.filescan.io/uploads/662e73eb3137a4e0f3c25c09/reports/73b5eaf8-a250-4703-b92d-8404644a9043/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/554f40d4d4e6d80d96c5fc1b41afb7268a0b09b375adc3bcb1e10b1ff2eed986
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:
AVE_MARIA
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/86eaca2c-42a2-4d3d-bd7a-36a16a3995d1
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1432965
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Command shell drops VBS files
Contain functionality to detect virtual machines
Contains functionality to inject code into remote processes
Contains functionality to log keystrokes (.Net Source)
Deletes itself after installation
Disables security and backup related services
Disables zone checking for all users
Drops VBS files to the startup folder
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Sigma detected: Drops script at startup location
Sigma detected: Potentially Suspicious Malware Callback Communication
Sigma detected: WScript or CScript Dropper
Snort IDS alert for network traffic
Tries to detect sandboxes / dynamic malware analysis system (file name check)
Uses dynamic DNS services
Uses netsh to modify the Windows network and firewall settings
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1432965 Sample: pJC8LFnyet.exe Startdate: 28/04/2024 Architecture: WINDOWS Score: 100 59 asero23.ddns.net 2->59 77 Snort IDS alert for network traffic 2->77 79 Multi AV Scanner detection for domain / URL 2->79 81 Found malware configuration 2->81 85 12 other signatures 2->85 10 pJC8LFnyet.exe 1 2->10         started        14 wscript.exe 1 2->14         started        signatures3 83 Uses dynamic DNS services 59->83 process4 file5 55 C:\Users\user\...\pJC8LFnyet.exex (copy), PE32 10->55 dropped 57 C:\Users\user\Desktop\pJC8LFnyet.exe, PE32 10->57 dropped 87 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 10->87 89 Tries to detect sandboxes / dynamic malware analysis system (file name check) 10->89 91 Contain functionality to detect virtual machines 10->91 95 5 other signatures 10->95 16 cmd.exe 2 10->16         started        20 pJC8LFnyet.exe 3 4 10->20         started        23 cmd.exe 1 10->23         started        93 Windows Scripting host queries suspicious COM object (likely to drop second stage) 14->93 25 pJC8LFnyet.exe 1 14->25         started        signatures6 process7 dnsIp8 53 C:\Users\user\AppData\Roaming\...\x.vbs, ASCII 16->53 dropped 63 Command shell drops VBS files 16->63 65 Drops VBS files to the startup folder 16->65 27 conhost.exe 16->27         started        61 asero23.ddns.net 178.128.228.252, 49705, 49713, 49714 DIGITALOCEAN-ASNUS Netherlands 20->61 67 Disables zone checking for all users 20->67 29 netsh.exe 2 20->29         started        31 net.exe 1 23->31         started        33 conhost.exe 23->33         started        69 Tries to detect sandboxes / dynamic malware analysis system (file name check) 25->69 71 Deletes itself after installation 25->71 73 Disables security and backup related services 25->73 75 Injects a PE file into a foreign processes 25->75 35 cmd.exe 1 25->35         started        37 cmd.exe 25->37         started        39 pJC8LFnyet.exe 3 25->39         started        file9 signatures10 process11 process12 41 conhost.exe 29->41         started        43 net1.exe 1 31->43         started        45 net.exe 1 35->45         started        47 conhost.exe 35->47         started        49 conhost.exe 37->49         started        process13 51 net1.exe 1 45->51         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/554f40d4d4e6d80d96c5fc1b41afb7268a0b09b375adc3bcb1e10b1ff2eed986
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/554f40d4d4e6d80d96c5fc1b41afb7268a0b09b375adc3bcb1e10b1ff2eed986/
Threat name:
Win32.Trojan.Skeeeyah
Create hunting rule
Status:
Malicious
First seen:
2024-04-25 19:27:00 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
33 of 38 (86.84%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=kvhubvgu43ma3fwf7qnudl5xe2fawcntoww4hpfr4efr74xo3gda._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
4685803ad19d283ca259f4af5fff5f0c397c0fe0c3032b663d0b99d510c4fcb6
njrat
554f40d4d4e6d80d96c5fc1b41afb7268a0b09b375adc3bcb1e10b1ff2eed986
njrat
6a949940330b0828af63f56d10981f8596ef1c24952b058e40af09ce6e947100
njrat
d94d9dbce42d7b6c0c5ef63e67f591d13229f3c4f6da24a9e9fb9a8d817aa598
njrat
f2fce7a94739dc81a39adcae9773b0a76c8d45986b26f51ccabd14285aaa8b64
njrat
+ 257 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:mybot evasion trojan upx
Link:
https://tria.ge/reports/240428-tj267sbf4y/
Behaviour
Runs net.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Drops startup file
Executes dropped EXE
UPX packed file
Modifies Windows Firewall
njRAT/Bladabindi
Malware Config
C2 Extraction:
asero23.ddns.net:5552
Unpacked files
SH256 hash:
df3d56ec16ab0aa62127b45667ed0c77f08c80a43fba0cdf0a43fa64faba44b5
MD5 hash:
52ffc95139b59b0f38e727373eacfa63
SHA1 hash:
e0ce5d70a4a21dc7ae435efb2656687143a9e8f3
Detections:
CN_disclosed_20180208_Mal1
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
MAL_Nitol_Malware_Jan19_1
Create hunting rule
GoogleBot_UserAgent
Create hunting rule
ZxShell_Related_Malware_CN_Group_Jul17_2
Create hunting rule
Link:
https://www.unpac.me/results/b3d8fca5-f7eb-4124-a185-ba1b2278879d/
Parent samples :
554f40d4d4e6d80d96c5fc1b41afb7268a0b09b375adc3bcb1e10b1ff2eed986
b8e35d21cd27c3f66b7e9dede80e2052299ffd45a7d160ac891277ff656dcb60
SH256 hash:
cb7be66fcdf97ad1581ccc5e73e53c3fb2cc64d688917ddfc81d4183672f1f16
MD5 hash:
f2f7ef9cc7c29e83a697ad7400e04d62
SHA1 hash:
961e83815c65ef61f5cd6abce8ab9b3acb764ed3
Link:
https://www.unpac.me/results/b3d8fca5-f7eb-4124-a185-ba1b2278879d/
SH256 hash:
42aa335681d9951b8ad22a7d43ecfb7b23c7eb9680832d42f35eb2033746e31d
MD5 hash:
f9c2c771c19eb9e801fd3c8fe30697e8
SHA1 hash:
4481a28748e95d5232849b72c9787c9b48f3b8b4
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
MAL_Winnti_Sample_May18_1
Create hunting rule
Link:
https://www.unpac.me/results/b3d8fca5-f7eb-4124-a185-ba1b2278879d/
SH256 hash:
554f40d4d4e6d80d96c5fc1b41afb7268a0b09b375adc3bcb1e10b1ff2eed986
MD5 hash:
3eb8c476c0abcd01fdb799de83503e12
SHA1 hash:
138aa012bb3b20a79aaf016af172a1b3106a7304
Link:
https://www.unpac.me/results/b3d8fca5-f7eb-4124-a185-ba1b2278879d/
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/554f40d4d4e6/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/554f40d4d4e6d80d96c5fc1b41afb7268a0b09b375adc3bcb1e10b1ff2eed986

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: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: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: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:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Create hunting rule
Author:malware-lu
Rule name:UPXv20MarkusLaszloReiser
Create hunting rule
Author:malware-lu
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule
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.

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_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN_BASE_APIUses Win Base APIKERNEL32.DLL::LoadLibraryA

Comments