Loading ...

Play interactive tourEdit tour

Windows Analysis Report gNFfZ1w8E6.exe

Overview

General Information

Sample Name:gNFfZ1w8E6.exe
Analysis ID:501918
MD5:664d73b23eddfcd0227786b9d0f5d022
SHA1:36fa060dbc146777f54c958e7457096af267e15c
SHA256:e88b591e50dc770c48156d2c86655923a090ee619753a6028ed857697d21f9db
Tags:exeNanoCoreRAT
Infos:

Most interesting Screenshot:

Detection

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

Signatures

Sigma detected: NanoCore
Detected Nanocore Rat
Yara detected AntiVM autoit script
Yara detected Nanocore RAT
Multi AV Scanner detection for submitted file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Connects to many ports of the same IP (likely port scanning)
Allocates memory in foreign processes
.NET source code contains potential unpacker
Injects a PE file into a foreign processes
Hides that the sample has been downloaded from the Internet (zone.identifier)
Uses schtasks.exe or at.exe to add and modify task schedules
Uses dynamic DNS services
Drops PE files with a suspicious file extension
Writes to foreign memory regions
Protects its processes via BreakOnTermination flag
Antivirus or Machine Learning detection for unpacked file
Contains functionality to query locales information (e.g. system language)
May sleep (evasive loops) to hinder dynamic analysis
Uses code obfuscation techniques (call, push, ret)
Detected potential crypto function
Contains functionality to launch a process as a different user
Sample execution stops while process was sleeping (likely an evasion)
Contains functionality to check if a window is minimized (may be used to check if an application is visible)
Contains functionality to dynamically determine API calls
Contains functionality to simulate keystroke presses
Contains long sleeps (>= 3 min)
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
OS version to string mapping found (often used in BOTs)
PE file contains strange resources
Drops PE files
Tries to load missing DLLs
Contains functionality to read the PEB
Contains functionality to retrieve information about pressed keystrokes
Creates a process in suspended mode (likely to inject code)
Contains functionality for read data from the clipboard
Uses 32bit PE files
Queries the volume information (name, serial number etc) of a device
Yara signature match
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Contains functionality to shutdown / reboot the system
Contains functionality to execute programs as a different user
Contains functionality to query CPU information (cpuid)
Found potential string decryption / allocating functions
Contains functionality to communicate with device drivers
Contains functionality to read the clipboard data
Contains functionality which may be used to detect a debugger (GetProcessHeap)
Creates a DirectInput object (often for capturing keystrokes)
Installs a raw input device (often for capturing keystrokes)
File is packed with WinRar
Contains functionality to open a port and listen for incoming connection (possibly a backdoor)
Detected TCP or UDP traffic on non-standard ports
Contains functionality to launch a program with higher privileges
Potential key logger detected (key state polling based)
Monitors certain registry keys / values for changes (often done to protect autostart functionality)
Contains functionality to simulate mouse events
Found WSH timer for Javascript or VBS script (likely evasive script)
Contains functionality to block mouse and keyboard input (often used to hinder debugging)

Classification

Process Tree

  • System is w10x64
  • gNFfZ1w8E6.exe (PID: 5500 cmdline: 'C:\Users\user\Desktop\gNFfZ1w8E6.exe' MD5: 664D73B23EDDFCD0227786B9D0F5D022)
    • ahmrqkljvd.pif (PID: 2116 cmdline: 'C:\Users\user\70020325\ahmrqkljvd.pif' iwqnllkpjb.jam MD5: 8E699954F6B5D64683412CC560938507)
      • RegSvcs.exe (PID: 6244 cmdline: C:\Users\user~1\AppData\Local\Temp\RegSvcs.exe MD5: 2867A3817C9245F7CF518524DFD18F28)
        • schtasks.exe (PID: 6304 cmdline: 'schtasks.exe' /create /f /tn 'DHCP Monitor' /xml 'C:\Users\user\AppData\Local\Temp\tmpEBDB.tmp' MD5: 15FF7D8324231381BAD48A052F85DF04)
          • conhost.exe (PID: 6320 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
        • schtasks.exe (PID: 6420 cmdline: 'schtasks.exe' /create /f /tn 'DHCP Monitor Task' /xml 'C:\Users\user\AppData\Local\Temp\tmpF755.tmp' MD5: 15FF7D8324231381BAD48A052F85DF04)
          • conhost.exe (PID: 6436 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
  • RegSvcs.exe (PID: 6428 cmdline: C:\Users\user~1\AppData\Local\Temp\RegSvcs.exe 0 MD5: 2867A3817C9245F7CF518524DFD18F28)
    • conhost.exe (PID: 6444 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
  • ahmrqkljvd.pif (PID: 6560 cmdline: 'C:\Users\user~1\70020325\AHMRQK~1.PIF' C:\Users\user~1\70020325\IWQNLL~1.JAM MD5: 8E699954F6B5D64683412CC560938507)
    • RegSvcs.exe (PID: 6696 cmdline: C:\Users\user~1\AppData\Local\Temp\RegSvcs.exe MD5: 2867A3817C9245F7CF518524DFD18F28)
  • dhcpmon.exe (PID: 6572 cmdline: 'C:\Program Files (x86)\DHCP Monitor\dhcpmon.exe' 0 MD5: 2867A3817C9245F7CF518524DFD18F28)
    • conhost.exe (PID: 6596 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
  • wscript.exe (PID: 6716 cmdline: 'C:\Windows\System32\WScript.exe' 'C:\Users\user~1\70020325\Update.vbs' MD5: 9A68ADD12EB50DDE7586782C3EB9FF9C)
  • ahmrqkljvd.pif (PID: 6796 cmdline: 'C:\Users\user~1\70020325\AHMRQK~1.PIF' C:\Users\user~1\70020325\IWQNLL~1.JAM MD5: 8E699954F6B5D64683412CC560938507)
    • RegSvcs.exe (PID: 7128 cmdline: C:\Users\user~1\AppData\Local\Temp\RegSvcs.exe MD5: 2867A3817C9245F7CF518524DFD18F28)
  • cleanup

Malware Configuration

No configs have been found

Yara Overview

Memory Dumps

SourceRuleDescriptionAuthorStrings
0000000E.00000002.534249648.0000000005D50000.00000004.00020000.sdmpNanocore_RAT_Gen_2Detetcs the Nanocore RATFlorian Roth
  • 0xe75:$x1: NanoCore.ClientPluginHost
  • 0xe8f:$x2: IClientNetworkHost
0000000E.00000002.534249648.0000000005D50000.00000004.00020000.sdmpNanocore_RAT_Feb18_1Detects Nanocore RATFlorian Roth
  • 0xe75:$x2: NanoCore.ClientPluginHost
  • 0x1261:$s3: PipeExists
  • 0x1136:$s4: PipeCreated
  • 0xeb0:$s5: IClientLoggingHost
0000001A.00000003.388913907.000000000439E000.00000004.00000001.sdmpNanocore_RAT_Gen_2Detetcs the Nanocore RATFlorian Roth
  • 0xf9ed:$x1: NanoCore.ClientPluginHost
  • 0x441f5:$x1: NanoCore.ClientPluginHost
  • 0xfa2a:$x2: IClientNetworkHost
  • 0x44232:$x2: IClientNetworkHost
  • 0x1355d:$x3: #=qjgz7ljmpp0J7FvL9dmi8ctJILdgtcbw8JYUc6GC8MeJ9B11Crfg2Djxcf0p8PZGe
  • 0x47d65:$x3: #=qjgz7ljmpp0J7FvL9dmi8ctJILdgtcbw8JYUc6GC8MeJ9B11Crfg2Djxcf0p8PZGe
0000001A.00000003.388913907.000000000439E000.00000004.00000001.sdmpJoeSecurity_NanocoreYara detected Nanocore RATJoe Security
    0000001A.00000003.388913907.000000000439E000.00000004.00000001.sdmpNanoCoreunknown Kevin Breen <kevin@techanarchy.net>
    • 0xf755:$a: NanoCore
    • 0xf765:$a: NanoCore
    • 0xf999:$a: NanoCore
    • 0xf9ad:$a: NanoCore
    • 0xf9ed:$a: NanoCore
    • 0x43f5d:$a: NanoCore
    • 0x43f6d:$a: NanoCore
    • 0x441a1:$a: NanoCore
    • 0x441b5:$a: NanoCore
    • 0x441f5:$a: NanoCore
    • 0xf7b4:$b: ClientPlugin
    • 0xf9b6:$b: ClientPlugin
    • 0xf9f6:$b: ClientPlugin
    • 0x43fbc:$b: ClientPlugin
    • 0x441be:$b: ClientPlugin
    • 0x441fe:$b: ClientPlugin
    • 0xf8db:$c: ProjectData
    • 0x440e3:$c: ProjectData
    • 0x102e2:$d: DESCrypto
    • 0x44aea:$d: DESCrypto
    • 0x17cae:$e: KeepAlive
    Click to see the 179 entries

    Unpacked PEs