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Windows Analysis Report
G62PnhPS1s.exe

Overview

General Information

Sample Name:G62PnhPS1s.exe
Analysis ID:714139
MD5:07653fd9f64401f9f1696f4782c926f4
SHA1:aed898c8d28306aa28785004252b81144bb73676
SHA256:34915a0eded4e59cfd552ae7724e99584ec58f24b8a562fd90aa6dcb9397a019
Tags:exeNanoCoreRAT
Infos:

Detection

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

Signatures

Multi AV Scanner detection for submitted file
Malicious sample detected (through community Yara rule)
Sigma detected: NanoCore
Detected Nanocore Rat
Antivirus / Scanner detection for submitted sample
Sigma detected: Scheduled temp file as task from temp location
Antivirus detection for dropped file
Multi AV Scanner detection for dropped file
Yara detected Nanocore RAT
Snort IDS alert for network traffic
Hides threads from debuggers
Tries to detect sandboxes and other dynamic analysis tools (window names)
Machine Learning detection for sample
.NET source code contains potential unpacker
PE file has nameless sections
Machine Learning detection for dropped file
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 32bit PE files
Yara signature match
Antivirus or Machine Learning detection for unpacked file
May sleep (evasive loops) to hinder dynamic analysis
Uses code obfuscation techniques (call, push, ret)
PE file contains sections with non-standard names
Internet Provider seen in connection with other malware
Detected potential crypto function
Found potential string decryption / allocating functions
Sample execution stops while process was sleeping (likely an evasion)
Contains functionality to call native functions
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
Contains functionality to open a port and listen for incoming connection (possibly a backdoor)
Detected TCP or UDP traffic on non-standard ports
Checks for debuggers (devices)
Creates a process in suspended mode (likely to inject code)

Classification

  • System is w10x64
  • G62PnhPS1s.exe (PID: 5512 cmdline: C:\Users\user\Desktop\G62PnhPS1s.exe MD5: 07653FD9F64401F9F1696F4782C926F4)
    • schtasks.exe (PID: 5552 cmdline: schtasks.exe" /create /f /tn "DHCP Monitor" /xml "C:\Users\user\AppData\Local\Temp\tmpF33C.tmp MD5: 15FF7D8324231381BAD48A052F85DF04)
      • conhost.exe (PID: 5560 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • schtasks.exe (PID: 5604 cmdline: schtasks.exe" /create /f /tn "DHCP Monitor Task" /xml "C:\Users\user\AppData\Local\Temp\tmpF531.tmp MD5: 15FF7D8324231381BAD48A052F85DF04)
      • conhost.exe (PID: 5612 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
  • G62PnhPS1s.exe (PID: 5688 cmdline: C:\Users\user\Desktop\G62PnhPS1s.exe 0 MD5: 07653FD9F64401F9F1696F4782C926F4)
  • dhcpmon.exe (PID: 5708 cmdline: "C:\Program Files (x86)\DHCP Monitor\dhcpmon.exe" 0 MD5: 07653FD9F64401F9F1696F4782C926F4)
  • dhcpmon.exe (PID: 5816 cmdline: "C:\Program Files (x86)\DHCP Monitor\dhcpmon.exe" MD5: 07653FD9F64401F9F1696F4782C926F4)
  • cleanup
No configs have been found
SourceRuleDescriptionAuthorStrings
G62PnhPS1s.exeSUSP_XORed_URL_in_EXEDetects an XORed URL in an executableFlorian Roth
  • 0x12e8ed:$s1: \x02\x1E\x1E\x1APEE
SourceRuleDescriptionAuthorStrings
C:\Program Files (x86)\DHCP Monitor\dhcpmon.exeSUSP_XORed_URL_in_EXEDetects an XORed URL in an executableFlorian Roth
  • 0x12e8ed:$s1: \x02\x1E\x1E\x1APEE
SourceRuleDescriptionAuthorStrings
00000000.00000002.579918584.0000000005D60000.00000004.10000000.00040000.00000000.sdmpNanocore_RAT_Gen_2Detetcs the Nanocore RATFlorian Roth
  • 0xf7ad:$x1: NanoCore.ClientPluginHost
  • 0xf7da:$x2: IClientNetworkHost
00000000.00000002.579918584.0000000005D60000.00000004.10000000.00040000.00000000.sdmpNanocore_RAT_Feb18_1Detects Nanocore RATFlorian Roth
  • 0xf7ad:$x2: NanoCore.ClientPluginHost
  • 0x10888:$s4: PipeCreated
  • 0xf7c7:$s5: IClientLoggingHost
00000000.00000002.579918584.0000000005D60000.00000004.10000000.00040000.00000000.sdmpJoeSecurity_NanocoreYara detected Nanocore RATJoe Security
    00000000.00000002.579918584.0000000005D60000.00000004.10000000.00040000.00000000.sdmpMALWARE_Win_NanoCoreDetects NanoCoreditekSHen
    • 0xf778:$x2: NanoCore.ClientPlugin
    • 0xf7ad:$x3: NanoCore.ClientPluginHost
    • 0xf76c:$i2: IClientData
    • 0xf78e:$i3: IClientNetwork
    • 0xf79d:$i5: IClientDataHost
    • 0xf7c7:$i6: IClientLoggingHost
    • 0xf7da:$i7: IClientNetworkHost
    • 0xf7ed:$i8: IClientUIHost
    • 0xf7fb:$i9: IClientNameObjectCollection
    • 0xf817:$i10: IClientReadOnlyNameObjectCollection
    • 0xf56a:$s1: ClientPlugin
    • 0xf781:$s1: ClientPlugin
    • 0x147a2:$s6: get_ClientSettings
    00000000.00000002.579918584.0000000005D60000.00000004.10000000.00040000.00000000.sdmpWindows_Trojan_Nanocore_d8c4e3c5unknownunknown
    • 0xf7ad:$a1: NanoCore.ClientPluginHost
    • 0xf778:$a2: NanoCore.ClientPlugin
    • 0x146f3:$b1: get_BuilderSettings
    • 0x14662:$b7: LogClientException
    • 0xf7c7:$b9: IClientLoggingHost
    Click to see the 24 entries
    SourceRuleDescriptionAuthorStrings
    0.2.G62PnhPS1s.exe.5d64629.5.raw.unpackNanocore_RAT_Gen_2Detetcs the Nanocore RATFlorian Roth
    • 0xb184:$x1: NanoCore.ClientPluginHost
    • 0xb1b1:$x2: IClientNetworkHost
    0.2.G62PnhPS1s.exe.5d64629.5.raw.unpackNanocore_RAT_Feb18_1Detects Nanocore RATFlorian Roth
    • 0xb184:$x2: NanoCore.ClientPluginHost
    • 0xc25f:$s4: PipeCreated
    • 0xb19e:$s5: IClientLoggingHost
    0.2.G62PnhPS1s.exe.5d64629.5.raw.unpackJoeSecurity_NanocoreYara detected Nanocore RATJoe Security
      0.2.G62PnhPS1s.exe.5d64629.5.raw.unpackMALWARE_Win_NanoCoreDetects NanoCoreditekSHen
      • 0xb14f:$x2: NanoCore.ClientPlugin
      • 0xb184:$x3: NanoCore.ClientPluginHost
      • 0xb143:$i2: IClientData
      • 0xb165:$i3: IClientNetwork
      • 0xb174:$i5: IClientDataHost
      • 0xb19e:$i6: IClientLoggingHost
      • 0xb1b1:$i7: IClientNetworkHost
      • 0xb1c4:$i8: IClientUIHost
      • 0xb1d2:$i9: IClientNameObjectCollection
      • 0xb1ee:$i10: IClientReadOnlyNameObjectCollection
      • 0xaf41:$s1: ClientPlugin
      • 0xb158:$s1: ClientPlugin
      • 0x10179:$s6: get_ClientSettings
      0.2.G62PnhPS1s.exe.5d64629.5.raw.unpackWindows_Trojan_Nanocore_d8c4e3c5unknownunknown
      • 0xb184:$a1: NanoCore.ClientPluginHost
      • 0xb14f:$a2: NanoCore.ClientPlugin
      • 0x100ca:$b1: get_BuilderSettings
      • 0x10039:$b7: LogClientException
      • 0xb19e:$b9: IClientLoggingHost