Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/03/2024, 02:30

General

  • Target

    8a345f7f8bba72c8245d7fd2ebcfe081.exe

  • Size

    106KB

  • MD5

    8a345f7f8bba72c8245d7fd2ebcfe081

  • SHA1

    a99acee5b43b03409bc916802d44a0d525112973

  • SHA256

    81e10af2c84b5723be791c293d4204f99e73d3090d6550245fd612a14bce2dcb

  • SHA512

    57f1d2fa39602e735d9467fe7e72b00b7cae376870ebba6cfe6a1d2ba8eaa4d2ad4ab0724988fc9ab0cc1b3c2a5e423a0f5560e29fffd31e1211a97fb1fdea81

  • SSDEEP

    1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHsalRn5iF1j6GksC:1nK6a+qdOOtEvwDpjC

Score
7/10
upx

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • UPX packed file 5 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8a345f7f8bba72c8245d7fd2ebcfe081.exe
    "C:\Users\Admin\AppData\Local\Temp\8a345f7f8bba72c8245d7fd2ebcfe081.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:676
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:4016

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    106KB

    MD5

    94702d2aace6d2c72d168460b7211f24

    SHA1

    381a8124a1889b66b9d6b3921c56c8db8305362a

    SHA256

    7f74187fe5fbea20d9bc1a9f14f4bb797d46479115a90e5a449d1730d9dc9a2e

    SHA512

    5e95a21b4c1e15319f2592133989b7beee5a63651ac2e7d421c4ec1b5b58e58c8fbbe80c08cac0917097d1efebdd9dabbfa09aa73e6619bcda98af5fb0b0dcc7

  • memory/676-0-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/676-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/676-2-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/676-3-0x00000000005C0000-0x00000000005C6000-memory.dmp

    Filesize

    24KB

  • memory/676-19-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/4016-17-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/4016-22-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/4016-20-0x00000000007D0000-0x00000000007D6000-memory.dmp

    Filesize

    24KB

  • memory/4016-27-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB