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Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/06/2024, 23:04

General

  • Target

    7647040612db83d65d7b0106b59acfaa7e00dda1fa77698d19f0b6b8ec5afe4e.exe

  • Size

    12KB

  • MD5

    89556e58c72182d7e7390a94c5380550

  • SHA1

    e22d6a1daf4cea4fac7c4c47ec623f2ff339af5d

  • SHA256

    7647040612db83d65d7b0106b59acfaa7e00dda1fa77698d19f0b6b8ec5afe4e

  • SHA512

    7072a1f20e3d2b09c6e66a7837b27f3e6394552a86feef5c9f5df2ceff11ef7925e1f243dd343ed6fe39f7829e5acb8b4eb1fae30ce1dbc96d5a86a90f91d74e

  • SSDEEP

    384:TL7li/2zX8q2DcEQvdhcJKLTp/NK9xa+S:3r8M/Q9c+S

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7647040612db83d65d7b0106b59acfaa7e00dda1fa77698d19f0b6b8ec5afe4e.exe
    "C:\Users\Admin\AppData\Local\Temp\7647040612db83d65d7b0106b59acfaa7e00dda1fa77698d19f0b6b8ec5afe4e.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2144
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe" /noconfig @"C:\Users\Admin\AppData\Local\Temp\b4i3caui\b4i3caui.cmdline"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1660
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES4565.tmp" "C:\Users\Admin\AppData\Local\Temp\vbc580C0360B1E34793BD40E3B623EC6261.TMP"
        3⤵
          PID:384
      • C:\Users\Admin\AppData\Local\Temp\tmp43FF.tmp.exe
        "C:\Users\Admin\AppData\Local\Temp\tmp43FF.tmp.exe" C:\Users\Admin\AppData\Local\Temp\7647040612db83d65d7b0106b59acfaa7e00dda1fa77698d19f0b6b8ec5afe4e.exe
        2⤵
        • Deletes itself
        • Executes dropped EXE
        PID:2992

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\RE.resources

      Filesize

      2KB

      MD5

      53dcdc0a14c02f29a05c57323c2f2755

      SHA1

      3dccc5c93c7e6310866a33ae0d28b1198e70d687

      SHA256

      07fa46bf66eca5dd74bf38258eb8ab42d7c01375498c689f43fb18b8d6d8489a

      SHA512

      9f3129b8e995567ed66771e249affcf3242b0e81121d87adee4c5eb4da765d1bfd6ed6b5dda6004e4a35eaec61ead5d3007b95dad39658ca12a481a720d47334

    • C:\Users\Admin\AppData\Local\Temp\RES4565.tmp

      Filesize

      1KB

      MD5

      3feed351f85d963fb3bb7cc15d748325

      SHA1

      75a71aaf4451480681e09e647b84c01b2e1010d4

      SHA256

      fab5324bbc9c36a6e02e4d090fb85ddbd827959b65f83432f1b7f2020cf567af

      SHA512

      93edb2390d0500ea1d954442ac92bd6702bbd694e1a795cc8dbe2af311758486bad277fcc7d7ec94f95323a7ad8fe7bccbaaa1f942e7b5a2bfdd38a1aac48065

    • C:\Users\Admin\AppData\Local\Temp\b4i3caui\b4i3caui.0.vb

      Filesize

      2KB

      MD5

      099b3a7ea303642ffb9fb0defc538aca

      SHA1

      cae97fcb9b88b91c3aa583ed26fad39dceec6e12

      SHA256

      4ece797c0b62e46795bd1630a75eca129dab9348a6156bea1cecfd33f43d5a83

      SHA512

      9f5c0d485fc533c9ae346dc2b37fca658615e0aaf6e0c0b2675b98a901f0055a33e14a27b9f76cc3aaaf460e74ff3f2958538cb860b2c56b73f8d8e7f3f964fc

    • C:\Users\Admin\AppData\Local\Temp\b4i3caui\b4i3caui.cmdline

      Filesize

      273B

      MD5

      905763222fb292daa37b62841fc5441c

      SHA1

      5434ff3e0a379228de5a6958fa4bcdc10d2432e4

      SHA256

      45e3ac6bce2de266dd91a5b0cbf6f0c09eb3be5fedeb6ecbf96198848a3712b7

      SHA512

      507bf9f50f2365b7f8ac59c4e5db21f6bb8f9a8f49078d1045efce50b0f6e379a364c490ae78842ebc2c54ded12504cd243e33cae92167c9b50857fcba1f82aa

    • C:\Users\Admin\AppData\Local\Temp\tmp43FF.tmp.exe

      Filesize

      12KB

      MD5

      4c19ad7ab2350dca4c18498b2d897b2b

      SHA1

      86c87d6cddbc14a531604e01f39e8bdacb4dcefe

      SHA256

      89cba3e30d1fbbee512615a2993366e463513063bbe2358df688280123cb91a5

      SHA512

      e8082fbcb41fd51dbe14d8872becbb72cb085dd216115ed17076a14aed1676c9834d54b65c1728c808b6d5d29840bcce13ff8dc0a3166fbbd8243d728a0483af

    • C:\Users\Admin\AppData\Local\Temp\vbc580C0360B1E34793BD40E3B623EC6261.TMP

      Filesize

      1KB

      MD5

      185530bfa1d0c54c4d08a5ec838f7878

      SHA1

      04a2b4016d70b380c4c70863bd9f8500ce177622

      SHA256

      e866519d6062c969ea55e7fb2b975aab99c363de0bb93fd3682f45867a3e31dd

      SHA512

      7092bbb00417f833fcca2e0baf41070889bf1f5973f727fa53b7f36c887c625b078a7475f7d76bfdb79052919c0af4635e385277a304fc81a5fdf2c857331be8

    • memory/2144-0-0x00000000743FE000-0x00000000743FF000-memory.dmp

      Filesize

      4KB

    • memory/2144-8-0x00000000743F0000-0x0000000074BA0000-memory.dmp

      Filesize

      7.7MB

    • memory/2144-2-0x00000000055A0000-0x000000000563C000-memory.dmp

      Filesize

      624KB

    • memory/2144-1-0x0000000000BF0000-0x0000000000BFA000-memory.dmp

      Filesize

      40KB

    • memory/2144-25-0x00000000743F0000-0x0000000074BA0000-memory.dmp

      Filesize

      7.7MB

    • memory/2992-26-0x00000000004E0000-0x00000000004EA000-memory.dmp

      Filesize

      40KB

    • memory/2992-24-0x00000000743F0000-0x0000000074BA0000-memory.dmp

      Filesize

      7.7MB

    • memory/2992-27-0x0000000005410000-0x00000000059B4000-memory.dmp

      Filesize

      5.6MB

    • memory/2992-28-0x0000000004E60000-0x0000000004EF2000-memory.dmp

      Filesize

      584KB

    • memory/2992-30-0x00000000743F0000-0x0000000074BA0000-memory.dmp

      Filesize

      7.7MB