Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-11-2022 17:21

General

  • Target

    6b1fc11a3e66a0eeb933b24aa199ced172a249890eaf85d90c1ef3fc395c1a3d.dll

  • Size

    982KB

  • MD5

    0a59cea951a8170d66e3921177bfd91c

  • SHA1

    00432636035643b4aeeb097543d2f7a75d2f4f65

  • SHA256

    6b1fc11a3e66a0eeb933b24aa199ced172a249890eaf85d90c1ef3fc395c1a3d

  • SHA512

    3cd2818ca629cf8f35c7bec8f7061b92cb8fa4f4694c1e33937462a953b8ac722f06c3832eff415031049dd1177fdeee6b49ba791d37ff5d6cdbd0aefddf32e0

  • SSDEEP

    3072:o6pU5Y1DXnbMn7Uzkop61/dAzV2O3XwTBftrm2YedGf3QKZD6:o6C5AXbMn7UI1FoV2gwTBlrIckPs

Score
10/10

Malware Config

Signatures

  • Yunsip

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\6b1fc11a3e66a0eeb933b24aa199ced172a249890eaf85d90c1ef3fc395c1a3d.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5056
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\6b1fc11a3e66a0eeb933b24aa199ced172a249890eaf85d90c1ef3fc395c1a3d.dll,#1
      2⤵
        PID:4756

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • memory/4756-132-0x0000000000000000-mapping.dmp