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Analysis

  • max time kernel
    149s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/12/2022, 07:29

General

  • Target

    bc3f97e08fc70c5e7663cdcc380bcf7ae0a2b81e5cd6b9907f5f7a8f49cdb86e.exe

  • Size

    356KB

  • MD5

    56bea14a8aa030c2833064841b1e49c4

  • SHA1

    89dc8a1e36b5b0c42b08b7bdf82a0a0ccd5eb35d

  • SHA256

    bc3f97e08fc70c5e7663cdcc380bcf7ae0a2b81e5cd6b9907f5f7a8f49cdb86e

  • SHA512

    654ee9568acae59601b6880b2a0c34460ab7934a808b621567f79f1500dcec531852916d308ecce7c70aada1b6a1b2a6eafd26c7836a2ca90cfb528d3b068fe7

  • SSDEEP

    6144:TNXJz6ZQw9FsL57G2/+C+7VXfhSoSWmTh7dnc4z4Q/IueNfn1g5Tzz:ZZzQps7G2/j+BX+W8JnX0buehK5/z

Malware Config

Signatures

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

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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). Likely ransomware behaviour.

  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bc3f97e08fc70c5e7663cdcc380bcf7ae0a2b81e5cd6b9907f5f7a8f49cdb86e.exe
    "C:\Users\Admin\AppData\Local\Temp\bc3f97e08fc70c5e7663cdcc380bcf7ae0a2b81e5cd6b9907f5f7a8f49cdb86e.exe"
    1⤵
    • Adds policy Run key to start application
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3036
    • C:\Windows\SysWOW64\ttdinjecty.exe
      C:\Windows\SysWOW64\ttdinjecty.exe
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • Checks computer location settings
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4772
      • C:\Windows\SysWOW64\ipconfig.exe
        "C:\Windows\system32\ipconfig.exe" /flushdns
        3⤵
        • Gathers network information
        PID:4764
    • C:\Windows\SysWOW64\cmd.exe
      /c C:\Users\Admin\AppData\Local\Temp\~unins9609.bat "C:\Users\Admin\AppData\Local\Temp\bc3f97e08fc70c5e7663cdcc380bcf7ae0a2b81e5cd6b9907f5f7a8f49cdb86e.exe"
      2⤵
        PID:4928

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\~unins9609.bat

      Filesize

      49B

      MD5

      9e0a2f5ab30517809b95a1ff1dd98c53

      SHA1

      5c1eefdf10e67d1e9216e2e3f5e92352d583c9ce

      SHA256

      97ac9fee75a1f7b63b3115e9c4fb9dda80b1caba26d2fb51325670dee261fe32

      SHA512

      e959cc1fd48fb1cccf135a697924c775a3812bab211fc7f9b00c5a9d617261d84c5d6f7cb548774c1e8f46811b06ca39c5603d0e10cbcb7b805f9abbe49b9b42

    • C:\Windows\SysWOW64\ttdinjecty.exe

      Filesize

      104KB

      MD5

      f9fe7f1373a59bb9f229edb5f5e02ef9

      SHA1

      5dbbaf2287a32b5bfa3451011e8cc6952b28a8ee

      SHA256

      e39110076e939049c795d4842384bc971c0b7913bfe52775711be2a4ebf3444d

      SHA512

      07a905e91f8df3b496b23160c9a30a01e3b92d96b94976df9679df69f781ec94797ce028cae2aa0a8239e80b33a52703cc7886b46400c4afdcfa965d1f0807ae

    • C:\Windows\SysWOW64\ttdinjecty.exe

      Filesize

      104KB

      MD5

      f9fe7f1373a59bb9f229edb5f5e02ef9

      SHA1

      5dbbaf2287a32b5bfa3451011e8cc6952b28a8ee

      SHA256

      e39110076e939049c795d4842384bc971c0b7913bfe52775711be2a4ebf3444d

      SHA512

      07a905e91f8df3b496b23160c9a30a01e3b92d96b94976df9679df69f781ec94797ce028cae2aa0a8239e80b33a52703cc7886b46400c4afdcfa965d1f0807ae

    • memory/3036-133-0x0000000000400000-0x000000000049D000-memory.dmp

      Filesize

      628KB

    • memory/3036-134-0x00000000020B0000-0x000000000213F000-memory.dmp

      Filesize

      572KB

    • memory/3036-138-0x0000000000400000-0x000000000049D000-memory.dmp

      Filesize

      628KB

    • memory/4772-142-0x0000000000401000-0x0000000000403000-memory.dmp

      Filesize

      8KB