Analysis

  • max time kernel
    139s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-10-2024 22:36

General

  • Target

    f37574357ff5b9765d08bbf757f003dded796f4664cbc6b764a4e9d6292196e9N.dll

  • Size

    444KB

  • MD5

    4d4646425c10b7e0433b65c420798360

  • SHA1

    ffa035a651c61311eb3693b1d9c604c6a13236e6

  • SHA256

    f37574357ff5b9765d08bbf757f003dded796f4664cbc6b764a4e9d6292196e9

  • SHA512

    b8a7967ffb78264a6374b3fed4f84c70f84773b8cf0333209c825d424336416b2cac8873be541a56dfb9011d0e3386af0a89bf5e39933b7ecd90dcf5918cbaf5

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0:jDgtfRQUHPw06MoV2nwTBlhm8

Malware Config

Signatures

  • Yunsip

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

  • 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\f37574357ff5b9765d08bbf757f003dded796f4664cbc6b764a4e9d6292196e9N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2108
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\f37574357ff5b9765d08bbf757f003dded796f4664cbc6b764a4e9d6292196e9N.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2984

Network

MITRE ATT&CK Enterprise v15

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Downloads