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Windows Analysis Report
Jens Frodesen CV.exe

Overview

General Information

Sample Name:Jens Frodesen CV.exe
Analysis ID:710606
MD5:210276dd5f377abe9e0b83e263507b83
SHA1:90f06579adc205e74b57f9abb48b6b3f2c25635d
SHA256:4d045c304e5cabb29318a9b07e9a6f41ff2172e72b704533a6f3b0bd79fba1c6
Tags:exeNanoCoreRAT
Infos:

Detection

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

Signatures

Malicious sample detected (through community Yara rule)
Sigma detected: NanoCore
Yara detected AntiVM3
Detected Nanocore Rat
Sigma detected: Scheduled temp file as task from temp location
Antivirus detection for URL or domain
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
.NET source code contains very large strings
Machine Learning detection for dropped file
C2 URLs / IPs found in malware configuration
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
Uses code obfuscation techniques (call, push, ret)
Internet Provider seen in connection with other malware
Detected potential crypto function
Sample execution stops while process was sleeping (likely an evasion)
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
Creates a process in suspended mode (likely to inject code)

Classification

  • System is w10x64
  • Jens Frodesen CV.exe (PID: 5300 cmdline: C:\Users\user\Desktop\Jens Frodesen CV.exe MD5: 210276DD5F377ABE9E0B83E263507B83)
    • schtasks.exe (PID: 3624 cmdline: C:\Windows\System32\schtasks.exe" /Create /TN "Updates\erfbnen" /XML "C:\Users\user\AppData\Local\Temp\tmpE027.tmp MD5: 15FF7D8324231381BAD48A052F85DF04)
      • conhost.exe (PID: 3220 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • Jens Frodesen CV.exe (PID: 1700 cmdline: {path} MD5: 210276DD5F377ABE9E0B83E263507B83)
      • schtasks.exe (PID: 396 cmdline: schtasks.exe" /create /f /tn "DHCP Monitor" /xml "C:\Users\user\AppData\Local\Temp\tmp6B62.tmp MD5: 15FF7D8324231381BAD48A052F85DF04)
        • conhost.exe (PID: 1556 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
      • schtasks.exe (PID: 6116 cmdline: schtasks.exe" /create /f /tn "DHCP Monitor Task" /xml "C:\Users\user\AppData\Local\Temp\tmp6F1C.tmp MD5: 15FF7D8324231381BAD48A052F85DF04)
        • conhost.exe (PID: 6112 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
  • Jens Frodesen CV.exe (PID: 5252 cmdline: "C:\Users\user\Desktop\Jens Frodesen CV.exe" 0 MD5: 210276DD5F377ABE9E0B83E263507B83)
    • schtasks.exe (PID: 396 cmdline: C:\Windows\System32\schtasks.exe" /Create /TN "Updates\erfbnen" /XML "C:\Users\user\AppData\Local\Temp\tmp7468.tmp MD5: 15FF7D8324231381BAD48A052F85DF04)
      • conhost.exe (PID: 4560 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
  • dhcpmon.exe (PID: 3584 cmdline: "C:\Program Files (x86)\DHCP Monitor\dhcpmon.exe" 0 MD5: 210276DD5F377ABE9E0B83E263507B83)
    • schtasks.exe (PID: 4024 cmdline: C:\Windows\System32\schtasks.exe" /Create /TN "Updates\erfbnen" /XML "C:\Users\user\AppData\Local\Temp\tmp6DF0.tmp MD5: 15FF7D8324231381BAD48A052F85DF04)
      • conhost.exe (PID: 2980 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • dhcpmon.exe (PID: 5148 cmdline: {path} MD5: 210276DD5F377ABE9E0B83E263507B83)
  • dhcpmon.exe (PID: 5984 cmdline: "C:\Program Files (x86)\DHCP Monitor\dhcpmon.exe" MD5: 210276DD5F377ABE9E0B83E263507B83)
    • schtasks.exe (PID: 1376 cmdline: C:\Windows\System32\schtasks.exe" /Create /TN "Updates\erfbnen" /XML "C:\Users\user\AppData\Local\Temp\tmpB308.tmp MD5: 15FF7D8324231381BAD48A052F85DF04)
      • conhost.exe (PID: 788 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • dhcpmon.exe (PID: 6004 cmdline: {path} MD5: 210276DD5F377ABE9E0B83E263507B83)