Analysis

  • max time kernel
    252s
  • max time network
    297s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-12-2022 08:07

General

  • Target

    7e255dfec31311b7b1bd40573fd83feee8e972ff3a61ec4c99eaddd55f8fc15e.dll

  • Size

    620KB

  • MD5

    3a64b27b346aa6ba7f6ca133cc970c40

  • SHA1

    ddeaae3aca11b540801ff7ee568fee321da6c072

  • SHA256

    7e255dfec31311b7b1bd40573fd83feee8e972ff3a61ec4c99eaddd55f8fc15e

  • SHA512

    05c045e029e321b8e2e8beb186cd2c4e6a42d3734bf1a5da2836a8f6f5e7de2df0eb592382d3f3d96472040bcea00ec05d368ca0e1b7c2da496d4c557aef5eeb

  • SSDEEP

    3072:oDKpt9sSR0HUHPwZWLnWVfEAzV2INwTBftZmc+z+f3Q03:oDgtfRQUHPw06MoV2swTBlxm8/

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\7e255dfec31311b7b1bd40573fd83feee8e972ff3a61ec4c99eaddd55f8fc15e.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4220
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\7e255dfec31311b7b1bd40573fd83feee8e972ff3a61ec4c99eaddd55f8fc15e.dll,#1
      2⤵
        PID:1468

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads