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Analysis Report pIjxtI0ZlU.exe

Overview

General Information

Sample Name:pIjxtI0ZlU.exe
Analysis ID:432674
MD5:a253962036d634b39e913bc0322584e5
SHA1:769427fca217accda232a61a9796affd6536c24b
SHA256:e6a6126a0e0da3279205a265388761d74ceade122fafc5a393c2d6b9dcc3b8e1
Tags:exeNanoCoreRAT
Infos:

Most interesting Screenshot:

Detection

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

Signatures

Detected Nanocore Rat
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Yara detected AntiVM3
Yara detected Nanocore RAT
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Antivirus or Machine Learning detection for unpacked file
Checks if Antivirus/Antispyware/Firewall program is installed (via WMI)
Contains capabilities to detect virtual machines
Contains functionality to call native functions
Contains functionality to open a port and listen for incoming connection (possibly a backdoor)
Contains long sleeps (>= 3 min)
Creates a DirectInput object (often for capturing keystrokes)
Creates a process in suspended mode (likely to inject code)
Detected TCP or UDP traffic on non-standard ports
Detected potential crypto function
Drops PE files
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Found inlined nop instructions (likely shell or obfuscated code)
IP address seen in connection with other malware
Installs a raw input device (often for capturing keystrokes)
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 execution stops while process was sleeping (likely an evasion)
Sample file is different than original file name gathered from version info
Sigma detected: Non Interactive PowerShell
Uses 32bit PE files
Uses code obfuscation techniques (call, push, ret)
Yara signature match

Classification

Process Tree

  • System is w10x64
  • pIjxtI0ZlU.exe (PID: 5712 cmdline: 'C:\Users\user\Desktop\pIjxtI0ZlU.exe' MD5: A253962036D634B39E913BC0322584E5)
    • powershell.exe (PID: 5868 cmdline: 'C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe' Add-MpPreference -ExclusionPath 'C:\Users\user\Desktop\pIjxtI0ZlU.exe' MD5: DBA3E6449E97D4E3DF64527EF7012A10)
      • conhost.exe (PID: 5792 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • powershell.exe (PID: 4624 cmdline: 'C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe' Add-MpPreference -ExclusionPath 'C:\Users\user\AppData\Roaming\cKGPEGrRS.exe' MD5: DBA3E6449E97D4E3DF64527EF7012A10)
      • conhost.exe (PID: 64 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • schtasks.exe (PID: 4184 cmdline: 'C:\Windows\System32\schtasks.exe' /Create /TN 'Updates\cKGPEGrRS' /XML 'C:\Users\user\AppData\Local\Temp\tmp6A8A.tmp' MD5: 15FF7D8324231381BAD48A052F85DF04)
      • conhost.exe (PID: 1900 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • powershell.exe (PID: 2860 cmdline: 'C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe' Add-MpPreference -ExclusionPath 'C:\Users\user\AppData\Roaming\cKGPEGrRS.exe' MD5: DBA3E6449E97D4E3DF64527EF7012A10)
      • conhost.exe (PID: 4204 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • pIjxtI0ZlU.exe (PID: 2208 cmdline: C:\Users\user\Desktop\pIjxtI0ZlU.exe MD5: A253962036D634B39E913BC0322584E5)
  • dhcpmon.exe (PID: 6304 cmdline: 'C:\Program Files (x86)\DHCP Monitor\dhcpmon.exe' MD5: A253962036D634B39E913BC0322584E5)
    • powershell.exe (PID: 6432 cmdline: 'C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe' Add-MpPreference -ExclusionPath 'C:\Program Files (x86)\DHCP Monitor\dhcpmon.exe' MD5: DBA3E6449E97D4E3DF64527EF7012A10)
      • conhost.exe (PID: 6440 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • schtasks.exe (PID: 6448 cmdline: 'C:\Windows\System32\schtasks.exe' /Create /TN 'Updates\cKGPEGrRS' /XML 'C:\Users\user\AppData\Local\Temp\tmpAF63.tmp' MD5: 15FF7D8324231381BAD48A052F85DF04)
      • conhost.exe (PID: 6500 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • powershell.exe (PID: 6584 cmdline: 'C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe' Add-MpPreference -ExclusionPath 'C:\Users\user\AppData\Roaming\cKGPEGrRS.exe' MD5: DBA3E6449E97D4E3DF64527EF7012A10)
      • conhost.exe (PID: 6596 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • dhcpmon.exe (PID: 6604 cmdline: C:\Program Files (x86)\DHCP Monitor\dhcpmon.exe MD5: A253962036D634B39E913BC0322584E5)
    • dhcpmon.exe (PID: 6716 cmdline: C:\Program Files (x86)\DHCP Monitor\dhcpmon.exe MD5: A253962036D634B39E913BC0322584E5)
  • cleanup

Malware Configuration

Threatname: NanoCore

{"Version": "1.2.2.0", "Mutex": "b90524a1-4a4b-41de-ac06-59066a86", "Group": "Panda", "Domain1": "emedoo.ddns.net", "Domain2": "127.0.0.1", "Port": 5230, "KeyboardLogging": "Enable", "RunOnStartup": "Enable", "RequestElevation": "Disable", "BypassUAC": "Disable", "ClearZoneIdentifier": "Enable", "ClearAccessControl": "Enable", "SetCriticalProcess": "Disable", "PreventSystemSleep": "Enable", "ActivateAwayMode": "Enable", "EnableDebugMode": "Disable", "RunDelay": 50, "ConnectDelay": 4000, "RestartDelay": 5000, "TimeoutInterval": 5000, "KeepAliveTimeout": 30000, "MutexTimeout": 5000, "LanTimeout": 2500, "WanTimeout": 8000, "BufferSize": "ffff0000", "MaxPacketSize": "0000a000", "GCThreshold": "0000a000", "UseCustomDNS": "Enable", "PrimaryDNSServer": "emedoo.ddns.net", "BackupDNSServer": "8.8.4.4"}

Yara Overview

Memory Dumps

SourceRuleDescriptionAuthorStrings
00000009.00000002.949190405.0000000006E90000.00000004.00000001.sdmpNanocore_RAT_Gen_2Detetcs the Nanocore RATFlorian Roth
  • 0x59eb:$x1: NanoCore.ClientPluginHost
  • 0x5b48:$x2: IClientNetworkHost
00000009.00000002.949190405.0000000006E90000.00000004.00000001.sdmpNanocore_RAT_Feb18_1Detects Nanocore RATFlorian Roth
  • 0x59eb:$x2: NanoCore.ClientPluginHost
  • 0x6941:$s3: PipeExists
  • 0x5be1:$s4: PipeCreated
  • 0x5a05:$s5: IClientLoggingHost
00000009.00000002.945200916.0000000005F30000.00000004.00000001.sdmpNanocore_RAT_Gen_2Detetcs the Nanocore RATFlorian Roth
  • 0x5fee:$x1: NanoCore.ClientPluginHost
  • 0x602b:$x2: IClientNetworkHost
00000009.00000002.945200916.0000000005F30000.00000004.00000001.sdmpNanocore_RAT_Feb18_1Detects Nanocore RATFlorian Roth
  • 0x5fee:$x2: NanoCore.ClientPluginHost
  • 0x9441:$s4: PipeCreated
  • 0x6018:$s5: IClientLoggingHost
00000012.00000000.714388325.0000000000402000.00000040.00000001.sdmpNanocore_RAT_Gen_2Detetcs the Nanocore RATFlorian Roth
  • 0xff8d:$x1: NanoCore.ClientPluginHost
  • 0xffca:$x2: IClientNetworkHost
  • 0x13afd:$x3: #=qjgz7ljmpp0J7FvL9dmi8ctJILdgtcbw8JYUc6GC8MeJ9B11Crfg2Djxcf0p8PZGe
Click to see the 65 entries

Unpacked PEs

SourceRuleDescriptionAuthorStrings
9.2.pIjxtI0ZlU.exe.6e80000.32.raw.unpackNanocore_RAT_Gen_2Detetcs the Nanocore RATFlorian Roth
  • 0x13a8:$x1: NanoCore.ClientPluginHost
9.2.pIjxtI0ZlU.exe.6e80000.32.raw.unpackNanocore_RAT_Feb18_1Detects Nanocore RATFlorian Roth
  • 0x13a8:$x2: NanoCore.ClientPluginHost
  • 0x1486:$s4: PipeCreated
  • 0x13c2:$s5: IClientLoggingHost
9.2.pIjxtI0ZlU.exe.5f0e8a4.24.raw.unpackNanocore_RAT_Gen_2Detetcs the Nanocore RATFlorian Roth
  • 0x10937:$x1: NanoCore.ClientPluginHost
  • 0x10951:$x2: IClientNetworkHost
9.2.pIjxtI0ZlU.exe.5f0e8a4.24.raw.unpackNanocore_RAT_Feb18_1Detects Nanocore RATFlorian Roth
  • 0x10937:$x2: NanoCore.ClientPluginHost
  • 0x13c74:$s4: PipeCreated
  • 0x10924:$s5: IClientLoggingHost
9.2.pIjxtI0ZlU.exe.4362354.8.unpackNanocore_RAT_Gen_2Detetcs the Nanocore RATFlorian Roth
  • 0x41ee:$x1: NanoCore.ClientPluginHost
  • 0x422b:$x2: IClientNetworkHost