Analysis

  • max time kernel
    134s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-11-2024 05:27

General

  • Target

    0b1f3992f85b3eae6e1dbd8b4a06f9f1a764060b9806f284928df640908acb7fN.dll

  • Size

    1.8MB

  • MD5

    a33427d1dd7d648a45b12f25853a9370

  • SHA1

    842748f354661c8efba4f04f8d931940166d1681

  • SHA256

    0b1f3992f85b3eae6e1dbd8b4a06f9f1a764060b9806f284928df640908acb7f

  • SHA512

    3216049671f55259cc96ae1f3f6543b0728a200d82b03cb0cb8401a3cf605aec41ef9c19da3ed77fc922a5c31b1454abad182101e29749df9d5260d06863ed90

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0CIoIoIoIoIoIoIoIoIx:jDgtfRQUHPw06MoV2nwTBlhm87

Malware Config

Signatures

  • Yunsip

    Remote backdoor which communicates with a C2 server to receive commands.

  • Yunsip family
  • 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 use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\0b1f3992f85b3eae6e1dbd8b4a06f9f1a764060b9806f284928df640908acb7fN.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4384
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\0b1f3992f85b3eae6e1dbd8b4a06f9f1a764060b9806f284928df640908acb7fN.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1848

Network

MITRE ATT&CK Enterprise v15

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Downloads