Analysis

  • max time kernel
    15s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    08-01-2025 02:38

General

  • Target

    ee5612b6704d7813598830edf3e72b8987c57c0d8636c7580669e240645164ca.dll

  • Size

    643KB

  • MD5

    94d281c3f76c3a444ca5feff4158be26

  • SHA1

    7e87a5dcfcc424e93e83c619dbf901445a25693c

  • SHA256

    ee5612b6704d7813598830edf3e72b8987c57c0d8636c7580669e240645164ca

  • SHA512

    8a32fa2d00b3b682dd66d09e5dd9c0dc77b242c01133998262dcb9321e8dc7ac4ceb2aff43d98ce954d3071630ca8a146b993119d0fe6c30cead87753d13f942

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0D:jDgtfRQUHPw06MoV2nwTBlhm8L

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 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\ee5612b6704d7813598830edf3e72b8987c57c0d8636c7580669e240645164ca.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:684
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\ee5612b6704d7813598830edf3e72b8987c57c0d8636c7580669e240645164ca.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1036

Network

MITRE ATT&CK Enterprise v15

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