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Windows Analysis Report
Bank Details.exe

Overview

General Information

Sample Name:Bank Details.exe
Analysis ID:624809
MD5:e62e3496deb3ee2c512ca61cf2642a0d
SHA1:2b7942225b4d43ec944622e2b80d0d18c5376f70
SHA256:a9ee1fbee3b6bd1c9c449774b8ed2f02fb89bde7cbf72b2e348c61240971238e
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
Multi AV Scanner detection for dropped file
Yara detected Nanocore RAT
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Machine Learning detection for sample
.NET source code contains potential unpacker
Injects a PE file into a foreign processes
Yara detected Generic Downloader
.NET source code contains method to dynamically call methods (often used by packers)
Machine Learning detection for dropped file
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
Checks if Antivirus/Antispyware/Firewall program is installed (via WMI)
Uses code obfuscation techniques (call, push, ret)
Detected potential crypto function
Sample execution stops while process was sleeping (likely an evasion)
Contains functionality for execution timing, often used to detect debuggers
Contains long sleeps (>= 3 min)
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)
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
  • Bank Details.exe (PID: 1900 cmdline: "C:\Users\user\Desktop\Bank Details.exe" MD5: E62E3496DEB3EE2C512CA61CF2642A0D)
    • powershell.exe (PID: 580 cmdline: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\user\AppData\Roaming\nOcstjdWFAT.exe MD5: DBA3E6449E97D4E3DF64527EF7012A10)
      • conhost.exe (PID: 1724 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • schtasks.exe (PID: 4192 cmdline: C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nOcstjdWFAT" /XML "C:\Users\user\AppData\Local\Temp\tmpEA4C.tmp MD5: 15FF7D8324231381BAD48A052F85DF04)
      • conhost.exe (PID: 5848 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • Bank Details.exe (PID: 3560 cmdline: C:\Users\user\Desktop\Bank Details.exe MD5: E62E3496DEB3EE2C512CA61CF2642A0D)
  • dhcpmon.exe (PID: 6400 cmdline: "C:\Program Files (x86)\DHCP Monitor\dhcpmon.exe" MD5: E62E3496DEB3EE2C512CA61CF2642A0D)
    • powershell.exe (PID: 6572 cmdline: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\user\AppData\Roaming\nOcstjdWFAT.exe MD5: DBA3E6449E97D4E3DF64527EF7012A10)
      • conhost.exe (PID: 6580 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • schtasks.exe (PID: 6588 cmdline: C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nOcstjdWFAT" /XML "C:\Users\user\AppData\Local\Temp\tmp5C9D.tmp MD5: 15FF7D8324231381BAD48A052F85DF04)
      • conhost.exe (PID: 6680 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • dhcpmon.exe (PID: 6784 cmdline: C:\Program Files (x86)\DHCP Monitor\dhcpmon.exe MD5: E62E3496DEB3EE2C512CA61CF2642A0D)
  • cleanup
{"Version": "1.2.2.0", "Mutex": "55e3c1f3-bf1e-4980-afea-8df9e139", "Group": "Default", "Domain1": "chima2022.ddns.net", "Domain2": "", "Port": 2022, "KeyboardLogging": "Enable", "RunOnStartup": "Enable", "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"}
SourceRuleDescriptionAuthorStrings
00000008.00000002.501615739.00000000050E0000.00000004.08000000.00040000.00000000.sdmpNanocore_RAT_Gen_2Detetcs the Nanocore RATFlorian Roth
  • 0xe75:$x1: NanoCore.ClientPluginHost
  • 0xe8f:$x2: IClientNetworkHost
00000008.00000002.501615739.00000000050E0000.00000004.08000000.00040000.00000000.sdmpNanocore_RAT_Feb18_1Detects Nanocore RATFlorian Roth
  • 0xe75:$x2: NanoCore.ClientPluginHost
  • 0x1261:$s3: PipeExists
  • 0x1136:$s4: PipeCreated
  • 0xeb0:$s5: IClientLoggingHost
00000008.00000002.501615739.00000000050E0000.00000004.08000000.00040000.00000000.sdmpMALWARE_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:$s7: get_Connected
00000008.00000002.495963136.0000000000E40000.00000004.08000000.00040000.00000000.sdmpNanocore_RAT_Gen_2Detetcs the Nanocore RATFlorian Roth
  • 0x59eb:$x1: NanoCore.ClientPluginHost
  • 0x5b48:$x2: IClientNetworkHost
00000008.00000002.495963136.0000000000E40000.00000004.08000000.00040000.00000000.sdmpNanocore_RAT_Feb18_1Detects Nanocore RATFlorian Roth
  • 0x59eb:$x2: NanoCore.ClientPluginHost
  • 0x6941:$s3: PipeExists
  • 0x5be1:$s4: PipeCreated
  • 0x5a05:$s5: IClientLoggingHost