MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 424b1800061eb3534756eada61219882687a8f99d206d300ba7e4696066aaac8. 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: 12


Intelligence 12 IOCs YARA 9 File information Comments

SHA256 hash: 424b1800061eb3534756eada61219882687a8f99d206d300ba7e4696066aaac8
SHA3-384 hash: f0605ce5d0da152a8f84225307dcc6c5996588178ce273e9944a04e31a7db6f2a74a3dd78756695981da8734559a6825
SHA1 hash: 068aa881159f72c4454f44f32fb754fc5b88f688
MD5 hash: dd50c188aabc9e550fc221de015ddb55
humanhash: utah-lithium-alaska-bravo
File name:424b1800061eb3534756eada61219882687a8f99d206d300ba7e4696066aaac8
Download: download sample
Signature njrat
File size:1'033'768 bytes
First seen:2021-09-22 13:19:14 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:uAHnh+eWsN3skA4RV1Hom2KXMmHay5uertmY3Z5T:Zh+ZkldoPK8YayGYT
Threatray 1'259 similar samples on MalwareBazaar
TLSH T186259D02B3D5C076FFABA2739F69B24256BC6D250133842F13982DB9BD711B1127E663
File icon (PE):PE icon
dhash icon 28ad9a395654a4c6 (17 x njrat)
Reporter JAMESWT_WT
Tags:exe NjRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
343
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
424b1800061eb3534756eada61219882687a8f99d206d300ba7e4696066aaac8
Verdict:
Malicious activity
Analysis date:
2021-09-22 14:11:49 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Threat name:
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
AutoIt script contains suspicious strings
Binary is likely a compiled AutoIt script file
C2 URLs / IPs found in malware configuration
Changes the view of files in windows explorer (hidden files and folders)
Contains functionality to inject code into remote processes
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Njrat
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 488292 Sample: StSCDEPGxM Startdate: 22/09/2021 Architecture: WINDOWS Score: 100 37 Found malware configuration 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 Antivirus / Scanner detection for submitted sample 2->41 43 11 other signatures 2->43 7 StSCDEPGxM.exe 3 2->7         started        11 AppVCatalog.exe 1 2->11         started        13 AppVCatalog.exe 2->13         started        process3 file4 31 C:\Users\user\...\AppVCatalog.exe, PE32 7->31 dropped 45 Binary is likely a compiled AutoIt script file 7->45 47 Contains functionality to inject code into remote processes 7->47 49 Uses schtasks.exe or at.exe to add and modify task schedules 7->49 53 3 other signatures 7->53 15 RegAsm.exe 3 4 7->15         started        19 schtasks.exe 1 7->19         started        51 Antivirus detection for dropped file 11->51 21 schtasks.exe 1 11->21         started        23 RegAsm.exe 3 11->23         started        25 RegAsm.exe 2 13->25         started        signatures5 process6 dnsIp7 33 microsoftdnsbug.duckdns.org 181.141.7.190, 6699 EPMTelecomunicacionesSAESPCO Colombia 15->33 35 Changes the view of files in windows explorer (hidden files and folders) 15->35 27 conhost.exe 19->27         started        29 conhost.exe 21->29         started        signatures8 process9
Threat name:
Win32.Ransomware.Bosloki
Status:
Malicious
First seen:
2021-09-14 00:37:23 UTC
AV detection:
35 of 45 (77.78%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:njrat botnet:limebot3 trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
autoit_exe
Executes dropped EXE
njRAT/Bladabindi
Malware Config
C2 Extraction:
microsoftdnsbug.duckdns.org:6699
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:AutoIT_Compiled
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE).
Rule name:CN_disclosed_20180208_c
Author:Florian Roth
Description:Detects malware from disclosed CN malware set
Reference:https://twitter.com/cyberintproject/status/961714165550342146
Rule name:CN_disclosed_20180208_c_RID2E71
Author:Florian Roth
Description:Detects malware from disclosed CN malware set
Reference:https://twitter.com/cyberintproject/status/961714165550342146
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:MALWARE_Win_NjRAT
Author:ditekSHen
Description:Detects NjRAT / Bladabindi
Rule name:Njrat
Author:JPCERT/CC Incident Response Group
Description:detect njRAT in memory
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:win_njrat_w1
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.

Comments