Analysis

  • max time kernel
    23s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    29-11-2022 12:56

General

  • Target

    344463963ed0c758f4a1201242e8f68ef72d3c87376ca8f4d9ec170e140df29b.dll

  • Size

    306KB

  • MD5

    d1bdd603b433afc8adaa3ebc391401c0

  • SHA1

    8dd39d04c7916390090a1672c157a5df7c9c2cc9

  • SHA256

    344463963ed0c758f4a1201242e8f68ef72d3c87376ca8f4d9ec170e140df29b

  • SHA512

    1cb62f440f4804adaa27f54f85ac4d93d736f5b09864376d428d406ec18ba0b6a3725d222161b75c552a17455fbfea7284a822c6416ec8bc24d213b0e8f464ef

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0W:jDgtfRQUHPw06MoV2nwTBlhm8O

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\344463963ed0c758f4a1201242e8f68ef72d3c87376ca8f4d9ec170e140df29b.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:892
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\344463963ed0c758f4a1201242e8f68ef72d3c87376ca8f4d9ec170e140df29b.dll,#1
      2⤵
        PID:1220

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1220-54-0x0000000000000000-mapping.dmp
    • memory/1220-55-0x0000000075141000-0x0000000075143000-memory.dmp
      Filesize

      8KB