Analysis

  • max time kernel
    8s
  • max time network
    30s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20241023-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    06-12-2024 10:38

General

  • Target

    Trojan/Spark/Spark.exe

  • Size

    495KB

  • MD5

    181ee63003e5c3ec8c378030286ed7a2

  • SHA1

    6707f3a0906ab6d201edc5b6389f9e66e345f174

  • SHA256

    55bfcb784904477ef62ef7e4994dee42f03d69bfec3591989513cccbba3fc8fe

  • SHA512

    e9820f60b496d6631e054204c6fc5b525527d40a578faac1d5cdb116abcb4a35aacf4f4354ff092a2b455c5d9c2e0f29a761d737d9c9ad3d59d70b51d0583d92

  • SSDEEP

    12288:ehny10sOqEl5yD4UmxYV1g1bT2kdSOSGL84Umxb:exZ5vYORMOJ/b

Malware Config

Signatures

  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
  • Enables test signing to bypass driver trust controls 1 TTPs 1 IoCs

    Allows any signed driver to load without validation against a trusted certificate authority.

  • Loads dropped DLL 1 IoCs
  • Drops file in Windows directory 5 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Trojan\Spark\Spark.exe
    "C:\Users\Admin\AppData\Local\Temp\Trojan\Spark\Spark.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1580
    • C:\Windows\System32\bcdedit.exe
      "C:\Windows\System32\bcdedit.exe" -set nointegritychecks on
      2⤵
      • Modifies boot configuration data using bcdedit
      PID:3464
    • C:\Windows\System32\bcdedit.exe
      "C:\Windows\System32\bcdedit.exe" -set testsigning on
      2⤵
      • Modifies boot configuration data using bcdedit
      • Enables test signing to bypass driver trust controls
      PID:3536

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\File Cache\DLL.dll

    Filesize

    116KB

    MD5

    a61c26b360471c8258c7571037c4bca0

    SHA1

    5db105e0384f25b1ab165c10a9445e6b943cd0ff

    SHA256

    e77316a1fd682e1af8af3ccd03c170f886b9ec8edf7013e1be6a6207cb5a6f16

    SHA512

    3ef680d50ccfa4311d3d1bec1648c48cf8e8633353dea5e06f52339047ede36fd1655ce728541e769d9fcaa6ab8c2a66981aef708a9f4d05ae46ad26f9d6aef4

  • memory/1580-0-0x00000000745DE000-0x00000000745DF000-memory.dmp

    Filesize

    4KB

  • memory/1580-1-0x0000000000E20000-0x0000000000EA0000-memory.dmp

    Filesize

    512KB

  • memory/1580-2-0x0000000005DD0000-0x0000000006376000-memory.dmp

    Filesize

    5.6MB

  • memory/1580-3-0x00000000058C0000-0x0000000005952000-memory.dmp

    Filesize

    584KB

  • memory/1580-7-0x000000000A2E0000-0x000000000A334000-memory.dmp

    Filesize

    336KB

  • memory/1580-8-0x00000000745D0000-0x0000000074D81000-memory.dmp

    Filesize

    7.7MB