Analysis

  • max time kernel
    125s
  • max time network
    52s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/12/2023, 19:00

General

  • Target

    BCBP-FT-TRANSFER-287287912.scr.exe

  • Size

    476KB

  • MD5

    2afed36792d08f83bca5877f808612f2

  • SHA1

    fdc5f037f4d5b27c476f3ecb987810d90c40ff95

  • SHA256

    bbcd72e82d0511c6fda963e60a70d942e39e36e37ac225f75f3f5b9aa96b3e17

  • SHA512

    7a0de4f310101b73ad6736e01661244394aa0495e297f57bdee852d4005e9961554120ea2efa111090bba6b1545a48acd5ff2a96dedec92ac0735fc76f805b42

  • SSDEEP

    6144:b8LxBnaL3xX0XBxA4a76P34sAkTJDk/+rNx0kFGE/LK3auc17tTcGrAwDVaAX:aaLWXpa7u343IJ4+Zx0Qci1rU8o6

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\BCBP-FT-TRANSFER-287287912.scr.exe
    "C:\Users\Admin\AppData\Local\Temp\BCBP-FT-TRANSFER-287287912.scr.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:916
    • C:\Users\Admin\AppData\Local\Temp\gpaxjkfx.exe
      "C:\Users\Admin\AppData\Local\Temp\gpaxjkfx.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:2116
      • C:\Users\Admin\AppData\Local\Temp\gpaxjkfx.exe
        "C:\Users\Admin\AppData\Local\Temp\gpaxjkfx.exe"
        3⤵
          PID:3668
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2116 -s 664
          3⤵
          • Program crash
          PID:4708
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2116 -ip 2116
      1⤵
        PID:5064

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\Users\Admin\AppData\Local\Temp\gpaxjkfx.exe

              Filesize

              176KB

              MD5

              dcb26c9bfc1b5d7ce5d51c3b87c37daa

              SHA1

              824e47ae0d2ef729977f162c019aba515575eabf

              SHA256

              cb9f656521d692c898a9a5439682241d82087d40f3a949639b595f3fe2da106d

              SHA512

              de22705d5410b7d4c24fdcfc32a87280f16ced3aa7eee860cdc8855d763916e3dab4ac01190444f51f3f67a7bde4451be0b9d9dd23922fcd983c0cde8515ac35

            • C:\Users\Admin\AppData\Local\Temp\gpaxjkfx.exe

              Filesize

              176KB

              MD5

              dcb26c9bfc1b5d7ce5d51c3b87c37daa

              SHA1

              824e47ae0d2ef729977f162c019aba515575eabf

              SHA256

              cb9f656521d692c898a9a5439682241d82087d40f3a949639b595f3fe2da106d

              SHA512

              de22705d5410b7d4c24fdcfc32a87280f16ced3aa7eee860cdc8855d763916e3dab4ac01190444f51f3f67a7bde4451be0b9d9dd23922fcd983c0cde8515ac35

            • C:\Users\Admin\AppData\Local\Temp\xdxmt.s

              Filesize

              300KB

              MD5

              f4aa88a2bdd058cf0f9263c8d9207102

              SHA1

              399a192bbac02ec52cfee904aa1ee2fad0369aad

              SHA256

              2bcb37bd3f65d6135c329e502c2ef0909572c3fa480947cc6fe23252d41cdf33

              SHA512

              9e3428b01280b92af142db29b9c9ca6ede2a210a8617190bbecaf7504c661f6cab66d10926dac49b9864417f9667a867109fd312f012f9a487388a622bde80de

            • memory/2116-5-0x0000000000400000-0x0000000000431000-memory.dmp

              Filesize

              196KB