Resubmissions

31-10-2023 09:03

231031-k1gr6aha76 10

07-07-2021 20:04

210707-p9kx8yftcx 10

Analysis

  • max time kernel
    1683s
  • max time network
    1701s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-10-2023 09:03

General

  • Target

    favicon.dll

  • Size

    646KB

  • MD5

    1d700b208c65ca26efe5fa4be4749569

  • SHA1

    3deeff224b359ca2b28a841a116b84b783206adc

  • SHA256

    f97954d9c80dbfee223fb704863c5a156912f450eee2d0510af6301dfd919f09

  • SHA512

    8c5bcbdf35f4e3ad1177d98b0944b1ec9f407a7bd537af5ecd8e5aad37a67c4c46748bfbe165b4edb6348324e4b97d26a6e1af0007f458c3f697a6757cb05d92

  • SSDEEP

    12288:A1Xiy+UrnWHWzB2nWSgg6Uyan4jN3PMLYHBlIfNGwOF4IurIU+ls:JlUKQgWfg6qkHMOF8IU

Malware Config

Extracted

Family

zloader

Botnet

mk1

Campaign

mac2

C2

https://dssdffsdf.drld/mm.php

Attributes
  • build_id

    43

rc4.plain
rsa_pubkey.plain

Signatures

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Zloader, Terdot, DELoader, ZeusSphinx

    Zloader is a malware strain that was initially discovered back in August 2015.

  • Blocklisted process makes network request 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3132
      • C:\Windows\system32\rundll32.exe
        rundll32.exe C:\Users\Admin\AppData\Local\Temp\favicon.dll,#1
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2312
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32.exe C:\Users\Admin\AppData\Local\Temp\favicon.dll,#1
          3⤵
          • Suspicious use of NtCreateUserProcessOtherParentProcess
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1328
      • C:\Windows\SysWOW64\msiexec.exe
        msiexec.exe
        2⤵
        • Blocklisted process makes network request
        • Suspicious use of AdjustPrivilegeToken
        PID:184

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/184-12-0x0000000001040000-0x000000000106D000-memory.dmp

      Filesize

      180KB

    • memory/184-16-0x0000000001040000-0x000000000106D000-memory.dmp

      Filesize

      180KB

    • memory/184-17-0x0000000001040000-0x000000000106D000-memory.dmp

      Filesize

      180KB

    • memory/1328-0-0x0000000074F40000-0x000000007507F000-memory.dmp

      Filesize

      1.2MB

    • memory/1328-1-0x0000000074F40000-0x000000007507F000-memory.dmp

      Filesize

      1.2MB

    • memory/1328-2-0x0000000002BB0000-0x0000000002BB1000-memory.dmp

      Filesize

      4KB

    • memory/1328-3-0x0000000074F40000-0x000000007507F000-memory.dmp

      Filesize

      1.2MB

    • memory/1328-4-0x0000000002BB0000-0x0000000002BB1000-memory.dmp

      Filesize

      4KB

    • memory/1328-13-0x0000000074F40000-0x000000007507F000-memory.dmp

      Filesize

      1.2MB