Analysis

  • max time kernel
    42s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    30-11-2022 22:00

General

  • Target

    bcad4b4efa9f84d6341d08b4521a8888b824ec4a35b28bfe3d9e412386da271d.dll

  • Size

    434KB

  • MD5

    1b9ff4d5c345c5387bb76178f6ae2480

  • SHA1

    d343ee909d6ea919ecdf803f15f508e516c62d13

  • SHA256

    bcad4b4efa9f84d6341d08b4521a8888b824ec4a35b28bfe3d9e412386da271d

  • SHA512

    0563e21ebe3a5b80d097d2683f102cf826305d87d14ad4ca1616fc198729c6093e6bb9e7f00e78fc332d16c5732b9e110054e455af4d9b5673f955ff16ff47f8

  • SSDEEP

    3072:IDKpt9sSR0HUHPwZWLnWVfEAzV2IMwTBftZmc+z+f3Q0e:IDgtfRQUHPw06MoV2dwTBlxm8W

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\bcad4b4efa9f84d6341d08b4521a8888b824ec4a35b28bfe3d9e412386da271d.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1552
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\bcad4b4efa9f84d6341d08b4521a8888b824ec4a35b28bfe3d9e412386da271d.dll,#1
      2⤵
        PID:1848

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1848-55-0x0000000075241000-0x0000000075243000-memory.dmp

      Filesize

      8KB