Analysis

  • max time kernel
    181s
  • max time network
    188s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-12-2022 02:47

General

  • Target

    745945b2c57abab520e17b765e84d1d09fad1124cad8439c568c2c1a332e21ef.dll

  • Size

    374KB

  • MD5

    e4084330522303a4f1281dc798147659

  • SHA1

    18d09845c013bd067feeadd49599812121bafbca

  • SHA256

    745945b2c57abab520e17b765e84d1d09fad1124cad8439c568c2c1a332e21ef

  • SHA512

    49e358496d3f5128e39aa327bca53067b372710230186318d876051554fed189d3f15d983cdc3062f473484abc59040c8b2e0840ba780c3b70d502b3ee67c123

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0Q:jDgtfRQUHPw06MoV2nwTBlhm84

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\745945b2c57abab520e17b765e84d1d09fad1124cad8439c568c2c1a332e21ef.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2172
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\745945b2c57abab520e17b765e84d1d09fad1124cad8439c568c2c1a332e21ef.dll,#1
      2⤵
        PID:2540

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • memory/2540-132-0x0000000000000000-mapping.dmp