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Analysis

  • max time kernel
    79s
  • max time network
    79s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    13/09/2024, 01:14

General

  • Target

    d3c072b721fbc0d53dd75e1e59238020N.exe

  • Size

    358KB

  • MD5

    d3c072b721fbc0d53dd75e1e59238020

  • SHA1

    8a21b2eea085874c14554538cafbe1a99acaf10d

  • SHA256

    67b059bd1eb166b8aa77519605a44d4a13963dc3a24aeac952726db5e315becd

  • SHA512

    7580bddd6b8a1c21476fa79e1b1d530b5c55c2ae7437a74cac2ce4dec21b670aa170b9f0db1831650fbd72d17c541e3bcf449f2e9b8b59354821a84351b93a8d

  • SSDEEP

    6144:XRobyqO195qa8gjAh+jq203vATD2NLDa48An2N2FSmksqtB9:XWbyqO19D8gjBjmukXx5pesqr9

Malware Config

Signatures

  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Checks BIOS information in registry 2 TTPs 1 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • 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
  • Drops file in System32 directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d3c072b721fbc0d53dd75e1e59238020N.exe
    "C:\Users\Admin\AppData\Local\Temp\d3c072b721fbc0d53dd75e1e59238020N.exe"
    1⤵
    • Adds policy Run key to start application
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2084
    • C:\Windows\SysWOW64\aaclientb.exe
      C:\Windows\SysWOW64\aaclientb.exe
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2716
      • C:\Windows\SysWOW64\ipconfig.exe
        "C:\Windows\system32\ipconfig.exe" /flushdns
        3⤵
        • System Location Discovery: System Language Discovery
        • Gathers network information
        PID:2200
    • C:\Windows\SysWOW64\cmd.exe
      /c C:\Users\Admin\AppData\Local\Temp\~unins176.bat "C:\Users\Admin\AppData\Local\Temp\d3c072b721fbc0d53dd75e1e59238020N.exe"
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:2592

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\~unins176.bat

    Filesize

    49B

    MD5

    9e0a2f5ab30517809b95a1ff1dd98c53

    SHA1

    5c1eefdf10e67d1e9216e2e3f5e92352d583c9ce

    SHA256

    97ac9fee75a1f7b63b3115e9c4fb9dda80b1caba26d2fb51325670dee261fe32

    SHA512

    e959cc1fd48fb1cccf135a697924c775a3812bab211fc7f9b00c5a9d617261d84c5d6f7cb548774c1e8f46811b06ca39c5603d0e10cbcb7b805f9abbe49b9b42

  • \Windows\SysWOW64\aaclientb.exe

    Filesize

    104KB

    MD5

    476e102baeac3917dd6d44a58fd83bba

    SHA1

    c8c406ccc0c4134519e50656d8c8d1bb346949f2

    SHA256

    c1c900e1dce978f7d47a23fed43b9f4640d8f139f0c6e2cdfdc4720acffe7d84

    SHA512

    16b8235b35cd69fae76ad2a7411b70ee3e0c0f52f1e7b3a359fc20cd08fadf0b6f54c20330326c6233087b58dc46cfbaeb8d197a495de6cb10f140c55c7b5303

  • memory/2084-0-0x0000000000452000-0x000000000049F000-memory.dmp

    Filesize

    308KB

  • memory/2084-1-0x0000000000350000-0x00000000003E6000-memory.dmp

    Filesize

    600KB

  • memory/2084-5-0x0000000000400000-0x00000000004A6000-memory.dmp

    Filesize

    664KB

  • memory/2084-24-0x0000000000452000-0x000000000049F000-memory.dmp

    Filesize

    308KB