Windows Analysis Report
bUBL.exe

Overview

General Information

Sample name: bUBL.exe
Analysis ID: 1427753
MD5: c0bf09b4829bef52bac3d6fc6758ccd9
SHA1: 964c2ee33ab5b14dafb08cf0c58e908467226487
SHA256: b255d7d07da3fce68de66f3b0ea1cc08931e1f2d6514a19442e51269f2277e1b
Tags: exenjRat
Infos:

Detection

Njrat
Score: 100
Range: 0 - 100
Whitelisted: false
Confidence: 100%

Signatures

Antivirus / Scanner detection for submitted sample
Found malware configuration
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Yara detected Njrat
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
Machine Learning detection for sample
Uses dynamic DNS services
Allocates memory with a write watch (potentially for evading sandboxes)
Detected TCP or UDP traffic on non-standard ports
Detected potential crypto function
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Internet Provider seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
Queries the volume information (name, serial number etc) of a device
Sample file is different than original file name gathered from version info
Uses 32bit PE files

Classification

Name Description Attribution Blogpost URLs Link
NjRAT RedPacket Security describes NJRat as "a remote access trojan (RAT) has capabilities to log keystrokes, access the victim's camera, steal credentials stored in browsers, open a reverse shell, upload/download files, view the victim's desktop, perform process, file, and registry manipulations, and capabilities to let the attacker update, uninstall, restart, close, disconnect the RAT and rename its campaign ID. Through the Command & Control (CnC) server software, the attacker has capabilities to create and configure the malware to spread through USB drives."It is supposedly popular with actors in the Middle East. Similar to other RATs, many leaked builders may be backdoored.
  • AQUATIC PANDA
  • Earth Lusca
  • Operation C-Major
  • The Gorgon Group
 https://malpedia.caad.fkie.fraunhofer.de/details/win.njrat

AV Detection
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Antivirus / Scanner detection for submitted sample
Source: bUBL.exe Avira: detected
Found malware configuration
Source: 00000000.00000000.1652854625.0000000000C82000.00000002.00000001.01000000.00000003.sdmp Malware Configuration Extractor: Njrat {"Host": "rusia.duckdns.org", "Port": "1994", "Campaign ID": "NYAN CAT", "Network Seprator": "@!#&^%$", "Registry": "f2887c56e8ee"}
Multi AV Scanner detection for domain / URL
Source: rusia.duckdns.org Virustotal: Detection: 17% Perma Link
Source: rusia.duckdns.org Virustotal: Detection: 17% Perma Link
Multi AV Scanner detection for submitted file
Source: bUBL.exe Virustotal: Detection: 76% Perma Link
Yara detected Njrat
Source: Yara match File source: bUBL.exe, type: SAMPLE
Source: Yara match File source: 0.0.bUBL.exe.c80000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000000.00000000.1652854625.0000000000C82000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: bUBL.exe PID: 7300, type: MEMORYSTR
Machine Learning detection for sample
Source: bUBL.exe Joe Sandbox ML: detected
Uses 32bit PE files
Source: bUBL.exe Static PE information: EXECUTABLE_IMAGE, 32BIT_MACHINE
Source: C:\Users\user\Desktop\bUBL.exe File opened: C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.9672_none_d08f9da24428a513\MSVCR80.dll Jump to behavior
Source: bUBL.exe Static PE information: DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE

Networking
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Snort IDS alert for network traffic
Source: Traffic Snort IDS: 2033132 ET TROJAN Generic njRAT/Bladabindi CnC Activity (ll) 192.168.2.4:49730 -> 46.246.14.17:1994
Source: Traffic Snort IDS: 2825563 ETPRO TROJAN Generic njRAT/Bladabindi CnC Activity (inf) 192.168.2.4:49730 -> 46.246.14.17:1994
Source: Traffic Snort IDS: 2825564 ETPRO TROJAN Generic njRAT/Bladabindi CnC Activity (act) 192.168.2.4:49730 -> 46.246.14.17:1994
C2 URLs / IPs found in malware configuration
Source: Malware configuration extractor URLs: rusia.duckdns.org
Uses dynamic DNS services
Source: unknown DNS query: name: rusia.duckdns.org
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.4:49730 -> 46.246.14.17:1994
Internet Provider seen in connection with other malware
Source: Joe Sandbox View ASN Name: PORTLANEwwwportlanecomSE PORTLANEwwwportlanecomSE
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: C:\Users\user\Desktop\bUBL.exe Code function: 0_2_0126A186 recv, 0_2_0126A186
Source: unknown DNS traffic detected: queries for: rusia.duckdns.org

Key, Mouse, Clipboard, Microphone and Screen Capturing
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Contains functionality to log keystrokes (.Net Source)
Source: bUBL.exe, Keylogger.cs .Net Code: VKCodeToUnicode

E-Banking Fraud
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Yara detected Njrat
Source: Yara match File source: bUBL.exe, type: SAMPLE
Source: Yara match File source: 0.0.bUBL.exe.c80000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000000.00000000.1652854625.0000000000C82000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: bUBL.exe PID: 7300, type: MEMORYSTR
Detected potential crypto function
Source: C:\Users\user\Desktop\bUBL.exe Code function: 0_2_018319F0 0_2_018319F0
Sample file is different than original file name gathered from version info
Source: bUBL.exe, 00000000.00000002.4122479852.000000000142E000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: OriginalFilenamemscorwks.dllT vs bUBL.exe
Source: bUBL.exe, 00000000.00000000.1652883446.0000000000C88000.00000002.00000001.01000000.00000003.sdmp Binary or memory string: OriginalFilenameClient123.exe4 vs bUBL.exe
Source: bUBL.exe Binary or memory string: OriginalFilenameClient123.exe4 vs bUBL.exe
Uses 32bit PE files
Source: bUBL.exe Static PE information: EXECUTABLE_IMAGE, 32BIT_MACHINE
Source: classification engine Classification label: mal100.troj.spyw.evad.winEXE@1/0@1/1
Source: C:\Users\user\Desktop\bUBL.exe Code function: 0_2_056322AA AdjustTokenPrivileges, 0_2_056322AA
Source: C:\Users\user\Desktop\bUBL.exe Code function: 0_2_05632273 AdjustTokenPrivileges, 0_2_05632273
Source: C:\Users\user\Desktop\bUBL.exe Mutant created: NULL
Source: C:\Users\user\Desktop\bUBL.exe Mutant created: \Sessions\1\BaseNamedObjects\Global\.net clr networking
Source: C:\Users\user\Desktop\bUBL.exe Mutant created: \Sessions\1\BaseNamedObjects\f2887c56e8ee
Source: bUBL.exe Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
Source: bUBL.exe Static file information: TRID: Win32 Executable (generic) Net Framework (10011505/4) 49.79%
Source: C:\Users\user\Desktop\bUBL.exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: bUBL.exe Virustotal: Detection: 76%
Source: C:\Users\user\Desktop\bUBL.exe Section loaded: mscoree.dll Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Section loaded: apphelp.dll Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Section loaded: kernel.appcore.dll Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Section loaded: version.dll Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Section loaded: windows.storage.dll Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Section loaded: wldp.dll Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Section loaded: profapi.dll Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Section loaded: uxtheme.dll Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Section loaded: cryptsp.dll Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Section loaded: rsaenh.dll Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Section loaded: cryptbase.dll Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Section loaded: mswsock.dll Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Section loaded: dnsapi.dll Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Section loaded: iphlpapi.dll Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Section loaded: rasadhlp.dll Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Section loaded: fwpuclnt.dll Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Section loaded: sspicli.dll Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Section loaded: wbemcomn.dll Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Section loaded: amsi.dll Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Section loaded: userenv.dll Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Section loaded: shfolder.dll Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Section loaded: avicap32.dll Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Section loaded: msvfw32.dll Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Section loaded: winmm.dll Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CF4CC405-E2C5-4DDD-B3CE-5E7582D8C9FA}\InprocServer32 Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe File opened: C:\Windows\Microsoft.NET\Framework\v2.0.50727\mscorrc.dll Jump to behavior
Source: bUBL.exe Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR
Source: C:\Users\user\Desktop\bUBL.exe File opened: C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.9672_none_d08f9da24428a513\MSVCR80.dll Jump to behavior
Source: bUBL.exe Static PE information: DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE

Data Obfuscation
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.NET source code contains potential unpacker
Source: bUBL.exe, Program.cs .Net Code: Plugin System.Reflection.Assembly.Load(byte[])
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Allocates memory with a write watch (potentially for evading sandboxes)
Source: C:\Users\user\Desktop\bUBL.exe Memory allocated: 1410000 memory reserve | memory write watch Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Memory allocated: 3360000 memory reserve | memory write watch Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Memory allocated: 1620000 memory commit | memory reserve | memory write watch Jump to behavior
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Source: C:\Users\user\Desktop\bUBL.exe Window / User API: threadDelayed 3751 Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Window / User API: threadDelayed 5536 Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Window / User API: foregroundWindowGot 1767 Jump to behavior
May sleep (evasive loops) to hinder dynamic analysis
Source: C:\Users\user\Desktop\bUBL.exe TID: 7304 Thread sleep count: 223 > 30 Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe TID: 7304 Thread sleep time: -223000s >= -30000s Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe TID: 7364 Thread sleep count: 3751 > 30 Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe TID: 7304 Thread sleep count: 5536 > 30 Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe TID: 7304 Thread sleep time: -5536000s >= -30000s Jump to behavior
Source: bUBL.exe, 00000000.00000002.4122479852.000000000145E000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: Hyper-V RAW%SystemRoot%\system32\mswsock.dll
Enables debug privileges
Source: C:\Users\user\Desktop\bUBL.exe Process token adjusted: Debug Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Memory allocated: page read and write | page guard Jump to behavior

HIPS / PFW / Operating System Protection Evasion
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.NET source code references suspicious native API functions
Source: bUBL.exe, Program.cs Reference to suspicious API methods: capGetDriverDescriptionA(wDriver, ref lpszName, cbName, ref lpszVer, 100)
Source: bUBL.exe, Keylogger.cs Reference to suspicious API methods: MapVirtualKey(a, 0u)
Source: bUBL.exe, Keylogger.cs Reference to suspicious API methods: GetAsyncKeyState(num2)
Source: bUBL.exe, 00000000.00000002.4123512883.00000000033BA000.00000004.00000800.00020000.00000000.sdmp, bUBL.exe, 00000000.00000002.4123512883.00000000033DA000.00000004.00000800.00020000.00000000.sdmp, bUBL.exe, 00000000.00000002.4123512883.00000000033CC000.00000004.00000800.00020000.00000000.sdmp Binary or memory string: Program Manager
Source: bUBL.exe, 00000000.00000002.4123512883.00000000033BA000.00000004.00000800.00020000.00000000.sdmp, bUBL.exe, 00000000.00000002.4123512883.00000000033DA000.00000004.00000800.00020000.00000000.sdmp, bUBL.exe, 00000000.00000002.4123512883.00000000033CC000.00000004.00000800.00020000.00000000.sdmp Binary or memory string: Program Manager@9
Queries the volume information (name, serial number etc) of a device
Source: C:\Users\user\Desktop\bUBL.exe Queries volume information: C:\ VolumeInformation Jump to behavior
Source: C:\Users\user\Desktop\bUBL.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography MachineGuid Jump to behavior

Stealing of Sensitive Information
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Yara detected Njrat
Source: Yara match File source: bUBL.exe, type: SAMPLE
Source: Yara match File source: 0.0.bUBL.exe.c80000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000000.00000000.1652854625.0000000000C82000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: bUBL.exe PID: 7300, type: MEMORYSTR

Remote Access Functionality
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Yara detected Njrat
Source: Yara match File source: bUBL.exe, type: SAMPLE
Source: Yara match File source: 0.0.bUBL.exe.c80000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000000.00000000.1652854625.0000000000C82000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: bUBL.exe PID: 7300, type: MEMORYSTR
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Legend:

  • Process
  • Signature
  • Created File
  • DNS/IP Info
  • Is Dropped
  • Is Windows Process
  • Number of created Registry Values
  • Number of created Files
  • Visual Basic
  • Delphi
  • Java
  • .Net C# or VB.NET
  • C, C++ or other language
  • Is malicious
  • Internet
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1427753 Sample: bUBL.exe Startdate: 18/04/2024 Architecture: WINDOWS Score: 100 9 rusia.duckdns.org 2->9 13 Snort IDS alert for network traffic 2->13 15 Multi AV Scanner detection for domain / URL 2->15 17 Found malware configuration 2->17 21 8 other signatures 2->21 6 bUBL.exe 2 4 2->6         started        signatures3 19 Uses dynamic DNS services 9->19 process4 dnsIp5 11 rusia.duckdns.org 46.246.14.17, 1994, 49730 PORTLANEwwwportlanecomSE Sweden 6->11
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs

Contacted Public IPs

IP Domain Country Flag ASN ASN Name Malicious
46.246.14.17
 rusia.duckdns.org Sweden
42708 PORTLANEwwwportlanecomSE true

Contacted Domains

Name IP Active
rusia.duckdns.org 46.246.14.17 true

Contacted URLs

Name Malicious Antivirus Detection Reputation
rusia.duckdns.org true unknown