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Windows Analysis Report
vsQkhWCXxv.exe

Overview

General Information

Sample Name:vsQkhWCXxv.exe
Analysis ID:625006
MD5:ff76da5616699735c9f7c70ba9e66909
SHA1:9b0c1bf91bfd6e8e0a1d68f5d0da2f8addad231d
SHA256:ec04ec5840bcab1b86ec8e2a9d5d8fcbbc687a6235df0bc416e3cb6b149faf97
Tags:exeNanoCoreRAT
Infos:

Detection

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

Signatures

Found malware configuration
Multi AV Scanner detection for submitted file
Malicious sample detected (through community Yara rule)
Sigma detected: NanoCore
Yara detected AntiVM3
Detected Nanocore Rat
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Multi AV Scanner detection for domain / URL
Antivirus detection for dropped file
Multi AV Scanner detection for dropped file
Yara detected Nanocore RAT
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Adds a directory exclusion to Windows Defender
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
Uses 32bit PE files
Queries the volume information (name, serial number etc) of a device
Yara signature match
Antivirus or Machine Learning detection for unpacked file
May sleep (evasive loops) to hinder dynamic analysis
Internet Provider seen in connection with other malware
Detected potential crypto function
Sample execution stops while process was sleeping (likely an evasion)
IP address seen in connection with other malware
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
Drops PE files
Detected TCP or UDP traffic on non-standard ports
Monitors certain registry keys / values for changes (often done to protect autostart functionality)
Creates a process in suspended mode (likely to inject code)

Classification

  • System is w10x64
  • vsQkhWCXxv.exe (PID: 3472 cmdline: "C:\Users\user\Desktop\vsQkhWCXxv.exe" MD5: FF76DA5616699735C9F7C70BA9E66909)
    • powershell.exe (PID: 1300 cmdline: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\user\AppData\Roaming\vyJCJmhRnRK.exe MD5: DBA3E6449E97D4E3DF64527EF7012A10)
      • conhost.exe (PID: 1308 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • schtasks.exe (PID: 6280 cmdline: C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vyJCJmhRnRK" /XML "C:\Users\user\AppData\Local\Temp\tmp5508.tmp MD5: 15FF7D8324231381BAD48A052F85DF04)
      • conhost.exe (PID: 6288 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • vsQkhWCXxv.exe (PID: 6340 cmdline: C:\Users\user\Desktop\vsQkhWCXxv.exe MD5: FF76DA5616699735C9F7C70BA9E66909)
  • cleanup
{"Version": "1.2.2.0", "Mutex": "ac8dc510-d280-4bfd-8a77-cea13b6d", "Group": "2ND MARCH", "Domain1": "ella666.duckdns.org", "Domain2": "mikeljack321.ddns.net", "Port": 31788, "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": "ella666.duckdns.org"}
SourceRuleDescriptionAuthorStrings
00000000.00000002.346722851.0000000005340000.00000004.08000000.00040000.00000000.sdmpINDICATOR_EXE_Packed_DotNetReactorDetects executables packed with unregistered version of .NET ReactorditekSHen
  • 0xd071:$s2: is protected by an unregistered version of .NET Reactor!" );</script>
00000011.00000002.517843994.0000000000402000.00000040.00000400.00020000.00000000.sdmpNanocore_RAT_Gen_2Detetcs the Nanocore RATFlorian Roth
  • 0xff8d:$x1: NanoCore.ClientPluginHost
  • 0xffca:$x2: IClientNetworkHost
  • 0x13afd:$x3: #=qjgz7ljmpp0J7FvL9dmi8ctJILdgtcbw8JYUc6GC8MeJ9B11Crfg2Djxcf0p8PZGe
00000011.00000002.517843994.0000000000402000.00000040.00000400.00020000.00000000.sdmpJoeSecurity_NanocoreYara detected Nanocore RATJoe Security
    00000011.00000002.517843994.0000000000402000.00000040.00000400.00020000.00000000.sdmpNanoCoreunknown Kevin Breen <kevin@techanarchy.net>
    • 0xfcf5:$a: NanoCore
    • 0xfd05:$a: NanoCore
    • 0xff39:$a: NanoCore
    • 0xff4d:$a: NanoCore
    • 0xff8d:$a: NanoCore
    • 0xfd54:$b: ClientPlugin
    • 0xff56:$b: ClientPlugin
    • 0xff96:$b: ClientPlugin
    • 0xfe7b:$c: ProjectData
    • 0x10882:$d: DESCrypto
    • 0x1824e:$e: KeepAlive
    • 0x1623c:$g: LogClientMessage
    • 0x12437:$i: get_Connected
    • 0x10bb8:$j: #=q
    • 0x10be8:$j: #=q
    • 0x10c04:$j: #=q
    • 0x10c34:$j: #=q
    • 0x10c50:$j: #=q
    • 0x10c6c:$j: #=q
    • 0x10c9c:$j: #=q
    • 0x10cb8:$j: #=q
    00000011.00000000.334851227.0000000000402000.00000040.00000400.00020000.00000000.sdmpNanocore_RAT_Gen_2Detetcs the Nanocore RATFlorian Roth
    • 0xff8d:$x1: NanoCore.ClientPluginHost
    • 0xffca:$x2: IClientNetworkHost
    • 0x13afd:$x3: #=qjgz7ljmpp0J7FvL9dmi8ctJILdgtcbw8JYUc6GC8MeJ9B11Crfg2Djxcf0p8PZGe
    Click to see the 35 entries
    SourceRuleDescriptionAuthorStrings
    17.2.vsQkhWCXxv.exe.5460000.6.raw.unpackNanocore_RAT_Gen_2Detetcs the Nanocore RATFlorian Roth
    • 0xe75:$x1: NanoCore.ClientPluginHost
    • 0xe8f:$x2: IClientNetworkHost
    17.2.vsQkhWCXxv.exe.5460000.6.raw.unpackNanocore_RAT_Feb18_1Detects Nanocore RATFlorian Roth
    • 0xe75:$x2: NanoCore.ClientPluginHost
    • 0x1261:$s3: PipeExists
    • 0x1136:$s4: PipeCreated
    • 0xeb0:$s5: IClientLoggingHost
    17.2.vsQkhWCXxv.exe.5460000.6.raw.unpackMALWARE_Win_NanoCoreDetects NanoCoreditekSHen
    • 0xe38:$x2: NanoCore.ClientPlugin
    • 0xe75:$x3: NanoCore.ClientPluginHost
    • 0xe5a:$i1: IClientApp
    • 0xe4e:$i2: IClientData
    • 0xe29:$i3: IClientNetwork
    • 0xec3:$i4: IClientAppHost
    • 0xe65:$i5: IClientDataHost
    • 0xeb0:$i6: IClientLoggingHost
    • 0xe8f:$i7: IClientNetworkHost
    • 0xea2:$i8: IClientUIHost
    • 0xed2:$i9: IClientNameObjectCollection
    • 0xef7:$i10: IClientReadOnlyNameObjectCollection
    • 0xe41:$s1: ClientPlugin
    • 0x177c:$s1: ClientPlugin
    • 0x1789:$s1: ClientPlugin
    • 0x11f9:$s6: get_ClientSettings
    • 0x1249:$s7: get_Connected
    17.0.vsQkhWCXxv.exe.400000.8.unpackNanocore_RAT_Gen_2Detetcs the Nanocore RATFlorian Roth
    • 0x1018d:$x1: NanoCore.ClientPluginHost
    • 0x101ca:$x2: IClientNetworkHost
    • 0x13cfd:$x3: #=qjgz7ljmpp0J7FvL9dmi8ctJILdgtcbw8JYUc6GC8MeJ9B11Crfg2Djxcf0p8PZGe
    17.0.vsQkhWCXxv.exe.400000.8.unpackNanocore_RAT_Feb18_1Detects Nanocore RATFlorian Roth
    • 0xff05:$x1: NanoCore Client.exe
    • 0x1018d:$x2: NanoCore.ClientPluginHost
    • 0x117c6:$s1: PluginCommand
    • 0x117ba:$s2: FileCommand
    • 0x1266b:$s3: PipeExists
    • 0x18422:$s4: PipeCreated
    • 0x101b7:$s5: IClientLoggingHost