Analysis

  • max time kernel
    26s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    25-09-2024 12:58

General

  • Target

    ba1e80550e25abcbf0b5f84daae20c28a7549c9164220e41fc43ebd724b8835cN.dll

  • Size

    618KB

  • MD5

    bec228f9464a7c043b3869615f5c9810

  • SHA1

    e150b08ff5ecd2b992af92e36982776feacfafe3

  • SHA256

    ba1e80550e25abcbf0b5f84daae20c28a7549c9164220e41fc43ebd724b8835c

  • SHA512

    9153476db425189a3f340cfca5ea6ff06460e9b33b2e12cf3f133c775a3e19b50225bb0948d9f3b95f6bec92539053187603f74ed5b9b85f59b49984a6797ae5

  • SSDEEP

    6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYV:o6RI1Fo/wT3cJYYYYYYYYYYYYV

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 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\ba1e80550e25abcbf0b5f84daae20c28a7549c9164220e41fc43ebd724b8835cN.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2876
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\ba1e80550e25abcbf0b5f84daae20c28a7549c9164220e41fc43ebd724b8835cN.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2700

Network

MITRE ATT&CK Enterprise v15

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Downloads