Analysis

  • max time kernel
    39s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    02-12-2022 02:46

General

  • Target

    8b6b2e0fbab2fdd19e087f7e77e72a7922181918783cab7433938294d7e178f9.dll

  • Size

    278KB

  • MD5

    5cf06264cd21d7fd0fa51b6d5f1ab92d

  • SHA1

    8c63ecac22cb69ad560b8188d445603ef3e6e85b

  • SHA256

    8b6b2e0fbab2fdd19e087f7e77e72a7922181918783cab7433938294d7e178f9

  • SHA512

    46817310439677b1bd98a57143b59eacfe541e01ea0b16b93ec381e4c0a2e47e05344ff291fd255b2062b1d9389d52348f596689e7c1a14410aac918d0fb33d1

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0B:jDgtfRQUHPw06MoV2nwTBlhm8Z

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\8b6b2e0fbab2fdd19e087f7e77e72a7922181918783cab7433938294d7e178f9.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:900
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\8b6b2e0fbab2fdd19e087f7e77e72a7922181918783cab7433938294d7e178f9.dll,#1
      2⤵
        PID:1988

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1988-55-0x0000000075571000-0x0000000075573000-memory.dmp

      Filesize

      8KB