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Windows Analysis Report 039846H0INVOICERECEIPT.exe

Overview

General Information

Sample Name:039846H0INVOICERECEIPT.exe
Analysis ID:551967
MD5:3ba78ed2e621b7bb47778ec2567df223
SHA1:d735536d9984db49348e636d13ca0779d76b5d11
SHA256:329def14e6fa2aa0786df6501894efe890f27d250160397a16740a0bc731e967
Tags:exeNanoCoreRAT
Infos:

Most interesting Screenshot:

Detection

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

Signatures

Found malware configuration
Malicious sample detected (through community Yara rule)
Sigma detected: NanoCore
Detected Nanocore Rat
Multi AV Scanner detection for dropped file
Yara detected Nanocore RAT
Detected unpacking (creates a PE file in dynamic memory)
Initial sample is a PE file and has a suspicious name
.NET source code contains potential unpacker
Injects a PE file into a foreign processes
C2 URLs / IPs found in malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Uses dynamic DNS services
Uses 32bit PE files
Yara signature match
Antivirus or Machine Learning detection for unpacked file
Contains functionality to check if a debugger is running (IsDebuggerPresent)
May sleep (evasive loops) to hinder dynamic analysis
Contains functionality to shutdown / reboot the system
Uses code obfuscation techniques (call, push, ret)
Detected potential crypto function
Contains functionality to query CPU information (cpuid)
Found potential string decryption / allocating functions
Contains functionality to dynamically determine API calls
Contains functionality which may be used to detect a debugger (GetProcessHeap)
Contains long sleeps (>= 3 min)
Enables debug privileges
Creates a DirectInput object (often for capturing keystrokes)
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Installs a raw input device (often for capturing keystrokes)
Sample file is different than original file name gathered from version info
PE file contains strange resources
Drops PE files
Contains functionality to read the PEB
Detected TCP or UDP traffic on non-standard ports
Creates a process in suspended mode (likely to inject code)
Contains functionality for read data from the clipboard

Classification

Process Tree

  • System is w10x64
  • 039846H0INVOICERECEIPT.exe (PID: 5220 cmdline: "C:\Users\user\Desktop\039846H0INVOICERECEIPT.exe" MD5: 3BA78ED2E621B7BB47778EC2567DF223)
    • 039846H0INVOICERECEIPT.exe (PID: 4396 cmdline: "C:\Users\user\Desktop\039846H0INVOICERECEIPT.exe" MD5: 3BA78ED2E621B7BB47778EC2567DF223)
  • anlq.exe (PID: 3224 cmdline: "C:\Users\user\AppData\Roaming\ngneqippkv\anlq.exe" MD5: 3BA78ED2E621B7BB47778EC2567DF223)
    • anlq.exe (PID: 6196 cmdline: "C:\Users\user\AppData\Roaming\ngneqippkv\anlq.exe" MD5: 3BA78ED2E621B7BB47778EC2567DF223)
  • anlq.exe (PID: 6332 cmdline: "C:\Users\user\AppData\Roaming\ngneqippkv\anlq.exe" MD5: 3BA78ED2E621B7BB47778EC2567DF223)
    • anlq.exe (PID: 6392 cmdline: "C:\Users\user\AppData\Roaming\ngneqippkv\anlq.exe" MD5: 3BA78ED2E621B7BB47778EC2567DF223)
  • cleanup

Malware Configuration

Threatname: NanoCore

{"Version": "1.2.2.0", "Mutex": "c6aea8ec-42ab-4933-970f-cf8fecc5", "Group": "", "Domain1": "girlhomejan6100.duckdns.org", "Domain2": "girlhomejan6100.duckdns.org", "Port": 6100, "KeyboardLogging": "Enable", "RunOnStartup": "Disable", "RequestElevation": "Disable", "BypassUAC": "Disable", "ClearZoneIdentifier": "Enable", "ClearAccessControl": "Disable", "SetCriticalProcess": "Disable", "PreventSystemSleep": "Enable", "ActivateAwayMode": "Disable", "EnableDebugMode": "Disable", "RunDelay": 0, "ConnectDelay": 4000, "RestartDelay": 5000, "TimeoutInterval": 5000, "KeepAliveTimeout": 30000, "MutexTimeout": 5000, "LanTimeout": 2500, "WanTimeout": 8000, "BufferSize": "ffff0000", "MaxPacketSize": "0000a000", "GCThreshold": "0000a000", "UseCustomDNS": "Enable", "PrimaryDNSServer": "8.8.8.8", "BackupDNSServer": "8.8.4.4"}

Yara Overview

Memory Dumps

SourceRuleDescriptionAuthorStrings
0000000B.00000000.294082200.0000000000414000.00000040.00000001.sdmpNanocore_RAT_Gen_2Detetcs the Nanocore RATFlorian Roth
  • 0x111e5:$x1: NanoCore.ClientPluginHost
  • 0x11222:$x2: IClientNetworkHost
  • 0x14d55:$x3: #=qjgz7ljmpp0J7FvL9dmi8ctJILdgtcbw8JYUc6GC8MeJ9B11Crfg2Djxcf0p8PZGe
0000000B.00000000.294082200.0000000000414000.00000040.00000001.sdmpJoeSecurity_NanocoreYara detected Nanocore RATJoe Security
    0000000B.00000000.294082200.0000000000414000.00000040.00000001.sdmpNanoCoreunknown Kevin Breen <kevin@techanarchy.net>
    • 0x10f4d:$a: NanoCore
    • 0x10f5d:$a: NanoCore
    • 0x11191:$a: NanoCore
    • 0x111a5:$a: NanoCore
    • 0x111e5:$a: NanoCore
    • 0x10fac:$b: ClientPlugin
    • 0x111ae:$b: ClientPlugin
    • 0x111ee:$b: ClientPlugin
    • 0x110d3:$c: ProjectData
    • 0x11ada:$d: DESCrypto
    • 0x194a6:$e: KeepAlive
    • 0x17494:$g: LogClientMessage
    • 0x1368f:$i: get_Connected
    • 0x11e10:$j: #=q
    • 0x11e40:$j: #=q
    • 0x11e5c:$j: #=q
    • 0x11e8c:$j: #=q
    • 0x11ea8:$j: #=q
    • 0x11ec4:$j: #=q
    • 0x11ef4:$j: #=q
    • 0x11f10:$j: #=q
    00000001.00000002.508293325.0000000003904000.00000004.00000001.sdmpJoeSecurity_NanocoreYara detected Nanocore RATJoe Security
      00000001.00000002.508293325.0000000003904000.00000004.00000001.sdmpNanoCoreunknown Kevin Breen <kevin@techanarchy.net>
      • 0x7601:$a: NanoCore
      • 0x765a:$a: NanoCore
      • 0x7697:$a: NanoCore
      • 0x7710:$a: NanoCore
      • 0x1adbb:$a: NanoCore
      • 0x1add0:$a: NanoCore
      • 0x1ae05:$a: NanoCore
      • 0x24c69:$a: NanoCore
      • 0x24cc2:$a: NanoCore
      • 0x24cff:$a: NanoCore
      • 0x24d78:$a: NanoCore
      • 0x38423:$a: NanoCore
      • 0x38438:$a: NanoCore
      • 0x3846d:$a: NanoCore
      • 0x46082:$a: NanoCore
      • 0x460a7:$a: NanoCore
      • 0x46100:$a: NanoCore
      • 0x7663:$b: ClientPlugin
      • 0x76a0:$b: ClientPlugin
      • 0x7f9e:$b: ClientPlugin
      • 0x7fab:$b: ClientPlugin
      Click to see the 104 entries

      Unpacked PEs

      SourceRuleDescriptionAuthorStrings
      1.2.039846H0INVOICERECEIPT.exe.38e1aec.12.raw.unpackNanocore_RAT_Gen_2Detetcs the Nanocore RATFlorian Roth
      • 0x10937:$x1: NanoCore.ClientPluginHost
      • 0x10951:$x2: IClientNetworkHost
      1.2.039846H0INVOICERECEIPT.exe.38e1aec.12.raw.unpackNanocore_RAT_Feb18_1Detects Nanocore RATFlorian Roth
      • 0x10937:$x2: NanoCore.ClientPluginHost
      • 0x13c74:$s4: PipeCreated
      • 0x10924:$s5: IClientLoggingHost
      0.2.039846H0INVOICERECEIPT.exe.31b1458.2.unpackNanocore_RAT_Gen_2Detetcs the Nanocore RATFlorian Roth
      • 0xe38d:$x1: NanoCore.ClientPluginHost
      • 0xe3ca:$x2: IClientNetworkHost
      • 0x11efd:$x3: #=qjgz7ljmpp0J7FvL9dmi8ctJILdgtcbw8JYUc6GC8MeJ9B11Crfg2Djxcf0p8PZGe
      0.2.039846H0INVOICERECEIPT.exe.31b1458.2.unpackNanocore_RAT_Feb18_1Detects Nanocore RATFlorian Roth
      • 0xe105:$x1: NanoCore Client.exe
      • 0xe38d:$x2: NanoCore.ClientPluginHost
      • 0xf9c6:$s1: PluginCommand
      • 0xf9ba:$s2: FileCommand
      • 0x1086b:$s3: PipeExists
      • 0x16622:$s4: PipeCreated
      • 0xe3b7:$s5: IClientLoggingHost
      0.2.039846H0INVOICERECEIPT.exe.31b1458.2.unpackJoeSecurity_NanocoreYara detected Nanocore RATJoe Security