Analysis

  • max time kernel
    137s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-07-2023 13:06

General

  • Target

    b47787c8c27a0c_JC.exe

  • Size

    86KB

  • MD5

    b47787c8c27a0cd16f74f02f72258d2f

  • SHA1

    de54d484469710e03009ece3424a67a9af3bfe22

  • SHA256

    66a4b49f93a098e59ac9c4132a34064294a3b0e008f8484e6a3858aa0021301a

  • SHA512

    094d074c8558999c9c405652c6c207e6b65519a4f7cd0933aa5bf1e71633eb7f4ba70b16aca550cf65338c3d329cb41847cecec134fc6b4ad7da89f11e66a16d

  • SSDEEP

    1536:vj+jsMQMOtEvwDpj5H8u8rBN6nqEZNieRp5:vCjsIOtEvwDpj5H8zPs

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 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b47787c8c27a0c_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\b47787c8c27a0c_JC.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1616
    • 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:3772

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    86KB

    MD5

    a428604cb2b7a9524c4c80b01b91383b

    SHA1

    93239a1ba44227ca7296e5d6faeaeb8e8842e72b

    SHA256

    878b7a25d01940170e6e6dd31234f267ab8f126c74230012d584f9248f6ed26d

    SHA512

    b0f5bf95918b2f28653f777f8a42f9f707e370d858dce63e190509414670f73bf8e83e7965142eb24c906bb7945703563106356a1fe9ffcfe2b8e3d7c39c1a10

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

    Filesize

    86KB

    MD5

    a428604cb2b7a9524c4c80b01b91383b

    SHA1

    93239a1ba44227ca7296e5d6faeaeb8e8842e72b

    SHA256

    878b7a25d01940170e6e6dd31234f267ab8f126c74230012d584f9248f6ed26d

    SHA512

    b0f5bf95918b2f28653f777f8a42f9f707e370d858dce63e190509414670f73bf8e83e7965142eb24c906bb7945703563106356a1fe9ffcfe2b8e3d7c39c1a10

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

    Filesize

    86KB

    MD5

    a428604cb2b7a9524c4c80b01b91383b

    SHA1

    93239a1ba44227ca7296e5d6faeaeb8e8842e72b

    SHA256

    878b7a25d01940170e6e6dd31234f267ab8f126c74230012d584f9248f6ed26d

    SHA512

    b0f5bf95918b2f28653f777f8a42f9f707e370d858dce63e190509414670f73bf8e83e7965142eb24c906bb7945703563106356a1fe9ffcfe2b8e3d7c39c1a10

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1616-133-0x00000000007B0000-0x00000000007B6000-memory.dmp

    Filesize

    24KB

  • memory/1616-134-0x00000000007B0000-0x00000000007B6000-memory.dmp

    Filesize

    24KB

  • memory/1616-135-0x00000000007D0000-0x00000000007D6000-memory.dmp

    Filesize

    24KB

  • memory/3772-151-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/3772-150-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB