Analysis

  • max time kernel
    141s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/07/2023, 11:50

General

  • Target

    40f31a1df9ee9eexeexe_JC.exe

  • Size

    86KB

  • MD5

    40f31a1df9ee9ef2e3a74b1edc7f5bad

  • SHA1

    3b1ff5fb9ae270e6968011d2ed62e4e6a0b78140

  • SHA256

    71a48bd77b7e2e44dccaae12df707c40991ad0cc0fadd13af5489d6e3b764c37

  • SHA512

    d678b4eeba5b80b278e145ffd6b508b22f839a999a331d3ba72e71536254519d6fe298e590e32da46f3f931465ad9ef03515951fb8a45489e986a6b378741230

  • SSDEEP

    1536:vj+jsMQMOtEvwDpj5H8u8rBN6nqEZNieRpfy:vCjsIOtEvwDpj5H8zP7

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\40f31a1df9ee9eexeexe_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\40f31a1df9ee9eexeexe_JC.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:236
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:1308

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          86KB

          MD5

          32946d5be86b32bf1f060f35ffbe8993

          SHA1

          83e4dac09de83a8e3f550505ecdef92a05e31252

          SHA256

          280168f2edbae498bd6347c5a29bbc4d815da62f107ec340e4210d9a8ba7253e

          SHA512

          95bd4fb25aed30dd3aab62d63bb1e9f82626573c3ad10e56a972afd1ca402656d1e0e8e58f962f502bc89bf466d0b3874bf99a1788d1941ef48b689916188fe2

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

          Filesize

          86KB

          MD5

          32946d5be86b32bf1f060f35ffbe8993

          SHA1

          83e4dac09de83a8e3f550505ecdef92a05e31252

          SHA256

          280168f2edbae498bd6347c5a29bbc4d815da62f107ec340e4210d9a8ba7253e

          SHA512

          95bd4fb25aed30dd3aab62d63bb1e9f82626573c3ad10e56a972afd1ca402656d1e0e8e58f962f502bc89bf466d0b3874bf99a1788d1941ef48b689916188fe2

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

          Filesize

          86KB

          MD5

          32946d5be86b32bf1f060f35ffbe8993

          SHA1

          83e4dac09de83a8e3f550505ecdef92a05e31252

          SHA256

          280168f2edbae498bd6347c5a29bbc4d815da62f107ec340e4210d9a8ba7253e

          SHA512

          95bd4fb25aed30dd3aab62d63bb1e9f82626573c3ad10e56a972afd1ca402656d1e0e8e58f962f502bc89bf466d0b3874bf99a1788d1941ef48b689916188fe2

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/236-133-0x00000000006B0000-0x00000000006B6000-memory.dmp

          Filesize

          24KB

        • memory/236-134-0x00000000006B0000-0x00000000006B6000-memory.dmp

          Filesize

          24KB

        • memory/236-135-0x00000000006D0000-0x00000000006D6000-memory.dmp

          Filesize

          24KB

        • memory/1308-150-0x00000000005E0000-0x00000000005E6000-memory.dmp

          Filesize

          24KB

        • memory/1308-151-0x0000000000490000-0x0000000000496000-memory.dmp

          Filesize

          24KB