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Analysis

  • max time kernel
    145s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/12/2023, 20:41

General

  • Target

    1c08339293cf52666c8b32d8a196f7ab.dll

  • Size

    235KB

  • MD5

    1c08339293cf52666c8b32d8a196f7ab

  • SHA1

    cd488228cf269f6673d740866cfee85e855f9e21

  • SHA256

    2efb6e749e4106fcd1c7b2a03205e34b2e2a4ebb7a2022eb01f185b3ff0b1244

  • SHA512

    8ae404a86dd1b923e92ed264f10b4a7476432f65b4c7b6dfa2a281c55c8316c01283e07ad8be7114222174218e6fcbac7a40c233846c60d632b531bac6fb433a

  • SSDEEP

    3072:KT/PM6+iJSu4HpEfWF0sYNPgDPutatPr7LRQtTmgw+kDJeR032NHYYBcMIwt45Zy:8H+iJSb2qLosD532NH2MIw+nQvt6a2

Score
8/10

Malware Config

Signatures

  • Sets DLL path for service in the registry 2 TTPs 2 IoCs
  • Sets service image path in registry 2 TTPs 2 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in System32 directory 4 IoCs
  • Modifies data under HKEY_USERS 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\1c08339293cf52666c8b32d8a196f7ab.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4808
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\1c08339293cf52666c8b32d8a196f7ab.dll
      2⤵
      • Sets DLL path for service in the registry
      • Sets service image path in registry
      PID:1068
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k tmsscvl -s tmsscvl
    1⤵
    • Sets DLL path for service in the registry
    • Sets service image path in registry
    • Drops file in System32 directory
    • Modifies data under HKEY_USERS
    PID:4420

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1068-0-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/1068-1-0x00000000012E0000-0x00000000012E1000-memory.dmp

    Filesize

    4KB

  • memory/4420-2-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB