Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    07-10-2023 20:16

General

  • Target

    NEAS.89827779cf17c61643020742f748caf4b7f0f88447676e7abdfc23265d41eb41_JC.exe

  • Size

    31KB

  • MD5

    8a4ec5538597dad62a9ff065f01f6935

  • SHA1

    1be65ea4a09851ae4f2fe17b5971effd1a2ee516

  • SHA256

    89827779cf17c61643020742f748caf4b7f0f88447676e7abdfc23265d41eb41

  • SHA512

    2aa2fbeacdfd880c4a87ff8cc1ac739472a4d9610f83c4f5be83b9b8fece959689bfe63f3e489d17c3f1d5f7a4093b431d1a88d1547b59a0f39da414152684c7

  • SSDEEP

    768:qUmnjFom/kLyMro2GtOOtEvwDpjeMLam5axt:qUmnpomddpMOtEvwDpjjaYa7

Score
7/10
upx

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 7 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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.89827779cf17c61643020742f748caf4b7f0f88447676e7abdfc23265d41eb41_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.89827779cf17c61643020742f748caf4b7f0f88447676e7abdfc23265d41eb41_JC.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2388
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:1448

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    32KB

    MD5

    4372e1c5bd4737a938a966662a7c0956

    SHA1

    b53634991cd9d8e57b039261285125a4b956a766

    SHA256

    d8b822940efde05bba9642df0f5593f5a9af0d10fbc683158d868d2d1f4c21a6

    SHA512

    055f8bfc87a54466511e84ee9f9be57226cb0051bd5feff0ef866a3d0ab8d8fa3fa4c7e07204e9d84324d98444b384b0a913603cd73058ef76e2b3b9c25aad81

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

    Filesize

    32KB

    MD5

    4372e1c5bd4737a938a966662a7c0956

    SHA1

    b53634991cd9d8e57b039261285125a4b956a766

    SHA256

    d8b822940efde05bba9642df0f5593f5a9af0d10fbc683158d868d2d1f4c21a6

    SHA512

    055f8bfc87a54466511e84ee9f9be57226cb0051bd5feff0ef866a3d0ab8d8fa3fa4c7e07204e9d84324d98444b384b0a913603cd73058ef76e2b3b9c25aad81

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

    Filesize

    32KB

    MD5

    4372e1c5bd4737a938a966662a7c0956

    SHA1

    b53634991cd9d8e57b039261285125a4b956a766

    SHA256

    d8b822940efde05bba9642df0f5593f5a9af0d10fbc683158d868d2d1f4c21a6

    SHA512

    055f8bfc87a54466511e84ee9f9be57226cb0051bd5feff0ef866a3d0ab8d8fa3fa4c7e07204e9d84324d98444b384b0a913603cd73058ef76e2b3b9c25aad81

  • memory/1448-28-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/1448-20-0x00000000004B0000-0x00000000004B6000-memory.dmp

    Filesize

    24KB

  • memory/1448-19-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/1448-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2388-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/2388-16-0x0000000002700000-0x000000000270F000-memory.dmp

    Filesize

    60KB

  • memory/2388-14-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2388-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2388-3-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/2388-27-0x0000000002700000-0x000000000270F000-memory.dmp

    Filesize

    60KB

  • memory/2388-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB