Analysis

  • max time kernel
    47s
  • max time network
    52s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    20-11-2022 10:04

General

  • Target

    bb2e8d5dff2d43227873506554cfdcfea57eccdda4fe005a174b3df6379c6954.dll

  • Size

    590KB

  • MD5

    32e360c84fd966775022c27d2fda9a20

  • SHA1

    f37bd9bcd5db14810fdcdd848a9236d504c8c039

  • SHA256

    bb2e8d5dff2d43227873506554cfdcfea57eccdda4fe005a174b3df6379c6954

  • SHA512

    9ece21b6ac8786d3b2f01f675cfca7655dc56840b5310e8760c35fdc529cc90289e781af568803f772ab5b25c0d0da3a9d360f21ff6a6969cd8e90130e2672a2

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0+:jDgtfRQUHPw06MoV2nwTBlhm8m

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\bb2e8d5dff2d43227873506554cfdcfea57eccdda4fe005a174b3df6379c6954.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:860
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\bb2e8d5dff2d43227873506554cfdcfea57eccdda4fe005a174b3df6379c6954.dll,#1
      2⤵
        PID:1252

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1252-55-0x0000000074DE1000-0x0000000074DE3000-memory.dmp

      Filesize

      8KB