Resubmissions

02/06/2025, 23:08

250602-24hx3aek6z

02/06/2025, 22:44

250602-2pacdabk2110

Analysis

  • max time kernel
    145s
  • max time network
    166s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250502-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250502-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/06/2025, 22:44

General

  • Target
    uploaded/882f4c1313d37351d72004caa3ef1aee0.exe
  • Size 409KB
  • Sample250602-2pacdabk21
  • SHA256 c164cd72d5927e12bbfa5946b3f9526e27bfe37b1d57fc595c3eb3e94c40b395
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Enumerates connected drives 3 TTPs 21 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 3 IoCs
  • Drops file in Windows directory 7 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\uploaded\882f4c1313d37351d72004caa3ef1aee0.exe
    "C:\Users\Admin\AppData\Local\Temp\uploaded\882f4c1313d37351d72004caa3ef1aee0.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3244
    • C:\Program Files\zango\zango.exe
      "C:\Program Files\zango\zango.exe" /did=004825
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Enumerates connected drives
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:3884
  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c c:\program files\zango\zango.exe
    1⤵
      PID:4612
    • C:\Windows\System32\svchost.exe
      C:\Windows\System32\svchost.exe -k NetworkService -p -s TapiSrv
      1⤵
        PID:1832

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            zango.exe

            • Path C:\Program Files\zango\zango.exe
            • Size 290KB
            • SHA256 b81b066c4f790d039c10d843a4c1b84326af6c75e12cef0b6acedf425458b690
            • MD5 SHA1 SHA512 SSDEEP

            ClientAX.dll

            • Path C:\Users\Admin\AppData\Local\Temp\ClientAX.dll
            • Size 408KB
            • SHA256 86eae33ca5d35efbf403f028da60f426a2ce651ebcbea9bf7c76e1eb61bf8388
            • MD5 SHA1 SHA512 SSDEEP

            ClientAX.dll

            • Path C:\Windows\Downloaded Program Files\ClientAX.dll
            • Size 408KB
            • SHA256 399836f02ec12bdbd53ab1c5a8891726d00776739943becb138c6ce3698a5932
            • MD5 SHA1 SHA512 SSDEEP

            ZangoAX.cab

            • Path C:\Windows\Downloaded Program Files\ZangoAX.cab
            • Size 335KB
            • SHA256 2d89c6d2b05cd1264f377163d9f1ca88c273e738c23fbadcc22a8f11781f0476
            • MD5 SHA1 SHA512 SSDEEP

            memory/3884-50-0x0000000000400000-0x0000000000495000-memory.dmp

            memory/3884-51-0x0000000000400000-0x0000000000495000-memory.dmp

            memory/3884-52-0x0000000000400000-0x0000000000495000-memory.dmp