Analysis

  • max time kernel
    22s
  • max time network
    100s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    07-11-2022 04:31

General

  • Target

    660e96ce446d580b49354fa6b9e86efe28ba19de79283be9fa3840e7ca846b11.dll

  • Size

    760KB

  • MD5

    0f2a462af8a9193da9ce31eeef254cba

  • SHA1

    c2fc6cb00a6f3ae892d9547697c2394e59660f78

  • SHA256

    660e96ce446d580b49354fa6b9e86efe28ba19de79283be9fa3840e7ca846b11

  • SHA512

    5396627011f29df04c415ff073e3fcbd77884b35c93bc2538e38fa402f6e4785509f77e4c2fbd6407f064f7a2003e29ba4e4a8264f3e2853c2bd67e71f73cf70

  • SSDEEP

    3072:o6pU5Y1DXnbMn7Uzkop61/dAzV2O3XwTBftrm2YedGf3QKZDs:o6C5AXbMn7UI1FoV2gwTBlrIckPu

Score
10/10

Malware Config

Signatures

  • Yunsip

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

  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\660e96ce446d580b49354fa6b9e86efe28ba19de79283be9fa3840e7ca846b11.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1940
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\660e96ce446d580b49354fa6b9e86efe28ba19de79283be9fa3840e7ca846b11.dll,#1
      2⤵
        PID:1492

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1492-55-0x0000000075B41000-0x0000000075B43000-memory.dmp

      Filesize

      8KB