Analysis

  • max time kernel
    416s
  • max time network
    501s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/01/2023, 10:27

General

  • Target
    ea70753df5c4285c7d07007d5f98c9dfbb3bd707be0947f70b0d08aed04d1886.exe
  • Size 1.3MB
  • Sample230111-mhldqsff81
  • SHA256 ea70753df5c4285c7d07007d5f98c9dfbb3bd707be0947f70b0d08aed04d1886
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • cryptbot

C2
  • http://wuqtaz510.top/gate.php

Attributes
  • payload_url

    http://maltdi07.top/quasar.dat

Signatures

  • CryptBot

    A C++ stealer distributed widely in bundle with other software.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 7 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ea70753df5c4285c7d07007d5f98c9dfbb3bd707be0947f70b0d08aed04d1886.exe
    "C:\Users\Admin\AppData\Local\Temp\ea70753df5c4285c7d07007d5f98c9dfbb3bd707be0947f70b0d08aed04d1886.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4644
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
      C:\Windows\Microsoft.NET/Framework/v4.0.30319/aspnet_compiler.exe
      2⤵
        PID:1156
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
        C:\Windows\Microsoft.NET/Framework/v4.0.30319/aspnet_compiler.exe
        2⤵
        • Maps connected drives based on registry
        • Checks processor information in registry
        PID:4792
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalService -p -s fdPHost
      1⤵
        PID:2192
      • C:\Windows\System32\rundll32.exe
        C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
        1⤵
          PID:544

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              memory/4644-132-0x0000000000BE0000-0x0000000000D3C000-memory.dmp

              memory/4644-133-0x00000000056A0000-0x0000000005732000-memory.dmp

              memory/4792-136-0x0000000000400000-0x00000000004D7000-memory.dmp

              memory/4792-137-0x0000000000400000-0x00000000004D7000-memory.dmp

              memory/4792-138-0x0000000000400000-0x00000000004D7000-memory.dmp

              memory/4792-139-0x0000000000400000-0x00000000004D7000-memory.dmp

              memory/4792-140-0x0000000000400000-0x00000000004D7000-memory.dmp

              memory/4792-141-0x0000000000400000-0x00000000004D7000-memory.dmp