Joe Sandbox Cloud Basic Analysis Report

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Windows Analysis Report
8v2E2Qu0iMFG7kx.exe

Overview

General Information

Sample Name:8v2E2Qu0iMFG7kx.exe
Analysis ID:624172
MD5:a2bb923c86585aaa72a8858fb84cbc22
SHA1:b6404adbe754315915ef021ca73309cbb4ba9ea7
SHA256:22ace1da7a25d7597434cc2ec2568a5f3e4c6cfd018fba8251e7273340be3de2
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
Yara detected Nanocore RAT
Connects to many ports of the same IP (likely port scanning)
Protects its processes via BreakOnTermination flag
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
.NET source code contains potential unpacker
Injects a PE file into a foreign processes
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
Uses code obfuscation techniques (call, push, ret)
Detected potential crypto function
Sample execution stops while process was sleeping (likely an evasion)
Contains functionality to call native functions
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

Process Tree

  • System is w10x64
  • 8v2E2Qu0iMFG7kx.exe (PID: 7112 cmdline: "C:\Users\user\Desktop\8v2E2Qu0iMFG7kx.exe" MD5: A2BB923C86585AAA72A8858FB84CBC22)
    • powershell.exe (PID: 4356 cmdline: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\user\AppData\Roaming\DizKUzcAmYAC.exe MD5: DBA3E6449E97D4E3DF64527EF7012A10)
      • conhost.exe (PID: 6468 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • schtasks.exe (PID: 4384 cmdline: C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DizKUzcAmYAC" /XML "C:\Users\user\AppData\Local\Temp\tmpD11B.tmp MD5: 15FF7D8324231381BAD48A052F85DF04)
      • conhost.exe (PID: 5220 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)