Analysis

  • max time kernel
    143s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/01/2024, 10:28

General

  • Target

    6762bf2e2c7bc2eca14742acc48acba3.exe

  • Size

    501KB

  • MD5

    6762bf2e2c7bc2eca14742acc48acba3

  • SHA1

    057d473224aa66aa835ca604f7d040f522dc14f0

  • SHA256

    0d001878bd1ffe6afd2cb34563e35d873ab2d3e2b726ceeb2df570376cfb1491

  • SHA512

    551055a1addabc13a7e8e0de6b53bbdae2e069cd4eabb8ed26767181017acdaa034b1c677c3893580ad7e2b37b1e3d608fe6938a88f185cab4b62ee00f97f7b1

  • SSDEEP

    12288:5kpVmn7nkA/c95IZn84Z8frmfiFSwIZIFpAlr9m0I3+Fv2S5ZiPrH5wx2A:5Jn7w7IZntermvwSIOFeS5UPrHC0

Score
7/10
upx

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 3 IoCs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Program crash 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6762bf2e2c7bc2eca14742acc48acba3.exe
    "C:\Users\Admin\AppData\Local\Temp\6762bf2e2c7bc2eca14742acc48acba3.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:4484
    • C:\Users\Admin\AppData\Local\Temp\6762bf2e2c7bc2eca14742acc48acba3.exe
      C:\Users\Admin\AppData\Local\Temp\6762bf2e2c7bc2eca14742acc48acba3.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:2784
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\6762bf2e2c7bc2eca14742acc48acba3.exe" /TN BLiB1zkTf55f /F
        3⤵
        • Creates scheduled task(s)
        PID:1936
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN BLiB1zkTf55f > C:\Users\Admin\AppData\Local\Temp\Y4XAn.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2712
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN BLiB1zkTf55f
          4⤵
            PID:1384
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2784 -s 572
          3⤵
          • Program crash
          PID:5104
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2784 -ip 2784
      1⤵
        PID:3140

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\6762bf2e2c7bc2eca14742acc48acba3.exe

        Filesize

        501KB

        MD5

        0fefab73462b40e60a700c1834835d6e

        SHA1

        ef71676f07f028f3fbca71617e2ab65c8f97c5b9

        SHA256

        1c05443197ff9494469e159ca68fc823d621bb89a768338036d3d310062a7494

        SHA512

        c5ef6dc52a7aaba88638b7bb7cb71534306d283e31efcdeabbe054d77e1de6227c3dce86b3bf7ae3f82cf5ae4bf6366a82a10739680d74d40b472434838dc453

      • C:\Users\Admin\AppData\Local\Temp\Y4XAn.xml

        Filesize

        1KB

        MD5

        5dbe0e018e57fa61f8d90b62a4b2844b

        SHA1

        fe4245f9a76dfcf69e8ae1ee0cdaa5f4dd42e0bf

        SHA256

        4d9b85106c133dd5eccaf7e81e897abfc1ba88bf7ab56929cbf657cc16bedaa4

        SHA512

        70a90434fa3c9e8892ef35f1b4b63cc7ef996d1b97eb02fe1a6b61c6cb89d25f4f80aeb60e32dc278b87422aa7ce583e349ae17288fcc3a14d3a626163bf8ca7

      • memory/2784-15-0x0000000000400000-0x000000000065C000-memory.dmp

        Filesize

        2.4MB

      • memory/2784-19-0x0000000025030000-0x00000000250AE000-memory.dmp

        Filesize

        504KB

      • memory/2784-23-0x0000000000470000-0x00000000004DB000-memory.dmp

        Filesize

        428KB

      • memory/2784-24-0x0000000000400000-0x000000000045B000-memory.dmp

        Filesize

        364KB

      • memory/2784-42-0x0000000000400000-0x000000000065C000-memory.dmp

        Filesize

        2.4MB

      • memory/4484-0-0x0000000000400000-0x000000000065C000-memory.dmp

        Filesize

        2.4MB

      • memory/4484-1-0x0000000000400000-0x000000000046B000-memory.dmp

        Filesize

        428KB

      • memory/4484-5-0x0000000001720000-0x000000000179E000-memory.dmp

        Filesize

        504KB

      • memory/4484-14-0x0000000000400000-0x000000000046B000-memory.dmp

        Filesize

        428KB