Analysis

  • max time kernel
    131s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-06-2024 00:54

General

  • Target

    SogouSoftwareLoader.dll

  • Size

    450KB

  • MD5

    b1ce2dba9515e144908aa34ac77f5a46

  • SHA1

    0a3e601eeba273a16d815c5e59793eb73db9daad

  • SHA256

    5a7349e46f16ec394af8575b666c132c010bacaa2c59da472b842ffeccc5623f

  • SHA512

    d0a78b5de9126b8126b531fb8f72ae375aac898930dccd8a61f173c28470895daab56b368c34a5925020dfdc642785651445967904d8756bb1ce7c1d2f95525a

  • SSDEEP

    12288:DFQXgN67wUjArVzhapfG8K/Fyh9xiBvych3t3Dmj0UIl9eNeXpu:C+yCZpm0X9eyu

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 5 IoCs
  • Downloads MZ/PE file
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in Program Files directory 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\SogouSoftwareLoader.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1848
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\SogouSoftwareLoader.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Writes to the Master Boot Record (MBR)
      • Drops file in Program Files directory
      PID:1612

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1612-0-0x0000000001110000-0x0000000001111000-memory.dmp

    Filesize

    4KB