Analysis

  • max time kernel
    145s
  • max time network
    145s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    21/01/2022, 23:49

General

  • Target
    5970db6c0bdefe4bf0a991c0c8c67633c5cc44af5a3203b709c242c8460a782e.dll
  • Size 256KB
  • Sample220121-3vfxsadeh8
  • SHA256 5970db6c0bdefe4bf0a991c0c8c67633c5cc44af5a3203b709c242c8460a782e
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • squirrelwaffle

C2
  • http://acdlimited.com/2u6aW9Pfe

  • http://jornaldasoficinas.com/ZF8GKIGVDupL

  • http://orldofjain.com/lMsTA7tSYpe

  • http://altayaralsudani.net/SSUsPgb7PHgC

  • http://hoteloaktree.com/QthLWsZsVgb

  • http://aterwellnessinc.com/U7D0sswwp

  • http://sirifinco.com/Urbhq9wO50j

  • http://ordpress17.com/5WG6Z62sKWo

  • http://mohsinkhanfoundation.com/pcQLeLMbur

  • http://lendbiz.vn/xj3BhHtMbf

  • http://geosever.rs/ObHP1CHt

  • http://nuevainfotech.com/xCNyTjzkoe

  • http://dadabhoy.pk/m6rQE94U

  • http://111

  • http://sjgrand.lk/zvMYuQqEZj

  • http://erogholding.com/GFM1QcCFk

  • http://armordetailing.rs/lgfrZb4Re6WO

  • http://lefrenchwineclub.com/eRUGdDox

Signatures

  • SquirrelWaffle is a simple downloader written in C++.

    SquirrelWaffle.

  • Squirrelwaffle Payload 2 IoCs
  • Blocklisted process makes network request 4 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\5970db6c0bdefe4bf0a991c0c8c67633c5cc44af5a3203b709c242c8460a782e.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2512
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\5970db6c0bdefe4bf0a991c0c8c67633c5cc44af5a3203b709c242c8460a782e.dll,#1
      2⤵
      • Blocklisted process makes network request
      PID:2748

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/2748-115-0x0000000010000000-0x00000000100D6000-memory.dmp

        memory/2748-116-0x0000000000E00000-0x0000000000EAE000-memory.dmp

        memory/2748-118-0x0000000010000000-0x00000000100D6000-memory.dmp

        memory/2748-117-0x0000000010000000-0x0000000010010000-memory.dmp