Analysis

  • max time kernel
    98s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    25/06/2020, 10:53

General

  • Target
    SecuriteInfo.com.Win32.Packed.Enigma.EY.4634.exe
  • Size 7.9MB
  • Sample200625-n58nwalyvx
  • SHA256 aeb1bfcef382789091e72e2d6cae6e471123d0e8e7a5f39c64abf5a3d9a4eaa8
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • danabot

C2
  • 92.204.160.126

  • 37.120.145.243

  • 195.133.147.230

  • 185.227.138.52

rsa_pubkey.plain

Signatures

  • Danabot

    Danabot is a modular banking Trojan that has been linked with other malware.

  • Danabot x86 payload 6 IoCs

    Detection of Danabot x86 payload, mapped in memory during the execution of its loader.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Blocklisted process makes network request 10 IoCs
  • Executes dropped EXE 6 IoCs
  • VMProtect packed file 7 IoCs

    Detects executables packed with VMProtect commercial packer.

  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Drops startup file 1 IoCs
  • Loads dropped DLL 13 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Themida packer 3 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 12 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 4 IoCs

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

  • Delays execution with timeout.exe 4 IoCs
  • Modifies system certificate store 2 TTPs 7 IoCs
  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.Packed.Enigma.EY.4634.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.Packed.Enigma.EY.4634.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies system certificate store
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1420
    • C:\ProgramData\sde\1_protected.exe
      C:\ProgramData\sde\1_protected.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Checks processor information in registry
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1620
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c rd /s /q C:\ProgramData\EIKf23RV & timeout 2 & del /f /q "C:\ProgramData\sde\1_protected.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1972
        • C:\Windows\SysWOW64\timeout.exe
          timeout 2
          4⤵
          • Delays execution with timeout.exe
          PID:2024
    • C:\ProgramData\sde\2_protected.exe
      C:\ProgramData\sde\2_protected.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Checks processor information in registry
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1532
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c rd /s /q C:\ProgramData\NUpU62jUB & timeout 3 & del /f /q "C:\ProgramData\sde\2_protected.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1496
        • C:\Windows\SysWOW64\timeout.exe
          timeout 3
          4⤵
          • Delays execution with timeout.exe
          PID:860
    • C:\Users\Admin\AppData\Roaming\dfgdfg.exe
      dfgdfg.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1860
      • C:\Windows\SysWOW64\regsvr32.exe
        C:\Windows\system32\regsvr32.exe -s C:\Users\Admin\AppData\Roaming\dfgdfg.dll f1 C:\Users\Admin\AppData\Roaming\dfgdfg.exe@1860
        3⤵
        • Loads dropped DLL
        PID:752
        • C:\Windows\SysWOW64\rundll32.exe
          C:\Windows\SysWOW64\rundll32.exe C:\Users\Admin\AppData\Roaming\dfgdfg.dll,f0
          4⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          PID:596
    • C:\Users\Admin\AppData\Roaming\trhgdf.exe
      trhgdf.exe
      2⤵
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      PID:536
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c rd /s /q C:\ProgramData\vuyahxnmkkwag & timeout 2 & del /f /q "C:\Users\Admin\AppData\Roaming\trhgdf.exe"
        3⤵
          PID:1220
          • C:\Windows\SysWOW64\timeout.exe
            timeout 2
            4⤵
            • Delays execution with timeout.exe
            PID:1768
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c rd /s /q C:\ProgramData\vuyahxnmkkwag & timeout 2 & del /f /q "C:\Users\Admin\AppData\Roaming\trhgdf.exe"
          3⤵
            PID:332
            • C:\Windows\SysWOW64\timeout.exe
              timeout 2
              4⤵
              • Delays execution with timeout.exe
              PID:1676
        • C:\Users\Admin\AppData\Roaming\rthgf.exe
          rthgf.exe
          2⤵
          • Executes dropped EXE
          • Drops startup file
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          PID:1536
          • C:\Users\Admin\AppData\Roaming\Smart Clock\SmartClock.exe
            "C:\Users\Admin\AppData\Roaming\Smart Clock\SmartClock.exe"
            3⤵
            • Executes dropped EXE
            • Suspicious behavior: AddClipboardFormatListener
            • Suspicious behavior: EnumeratesProcesses
            PID:1476

      Network

            MITRE ATT&CK Enterprise v6

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            Downloads

            memory/1420-0-0x0000000005500000-0x0000000005511000-memory.dmp

            memory/1420-1-0x0000000005D00000-0x0000000005D11000-memory.dmp

            memory/1532-17-0x00000000046A0000-0x00000000046B1000-memory.dmp

            memory/1532-16-0x00000000043E0000-0x00000000043F1000-memory.dmp

            memory/1620-9-0x00000000044C0000-0x00000000044D1000-memory.dmp

            memory/1620-2-0x00000000000E0000-0x00000000000E1000-memory.dmp

            memory/1620-8-0x0000000004120000-0x0000000004131000-memory.dmp

            memory/1860-51-0x0000000003D40000-0x0000000003FB7000-memory.dmp

            memory/1860-52-0x0000000003FC0000-0x0000000003FD1000-memory.dmp