Analysis

  • max time kernel
    165s
  • max time network
    195s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    21-01-2022 23:34

General

  • Target

    850497ed0130a5247a6c4650bca0af4be152be4cb88cca142b88df6fed854cd3.dll

  • Size

    375KB

  • MD5

    e9b6075238f35208a15b1da622669107

  • SHA1

    5092693d0456bdcd5ee99999341577af9421ba59

  • SHA256

    850497ed0130a5247a6c4650bca0af4be152be4cb88cca142b88df6fed854cd3

  • SHA512

    4d86acd54ce112774dadd71cce8c4d6f83ebfcc414f583e1e9f861655ec03f45098b60b5ae8177ff6ea8a99b749c5befa8ece52cc92dc60dcff716c7c0dc8bc8

Malware Config

Extracted

Family

squirrelwaffle

C2

http://msrsac.com/nvaaLwe9

http://u522712.gluweb.nl/n2fshwgq

http://serverplanner.com/LkkAWHLc8

http://bengali.iu.ac.bd/xNM4FTUzqRRk

http://owfix.net/NVNCI3qMl4

http://pcbsi.com.ph/IcLNSd9sO

http://enlacelaboral.com/3cKldxdt

Attributes
  • blocklist

    94.46.179.80

    206.189.205.251

    88.242.66.45

    36.65.102.42

    85.75.110.214

    93.78.214.187

    87.104.3.136

    207.244.91.171

    49.230.88.160

    91.149.252.75

    91.149.252.88

    92.211.109.152

    178.0.250.168

    178.203.145.135

    88.69.16.230

    95.223.77.160

    99.234.62.23

    2.206.105.223

    84.222.8.201

    89.183.239.142

    93.206.148.216

    5.146.132.101

    77.7.60.154

    45.41.106.122

    45.74.72.13

    74.58.152.123

    88.87.68.197

    211.107.25.121

    109.70.100.25

    185.67.82.114

Signatures

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

    SquirrelWaffle.

  • Squirrelwaffle Payload 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\850497ed0130a5247a6c4650bca0af4be152be4cb88cca142b88df6fed854cd3.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2600
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\850497ed0130a5247a6c4650bca0af4be152be4cb88cca142b88df6fed854cd3.dll
      2⤵
        PID:2632

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2632-118-0x00000000025C0000-0x00000000025C1000-memory.dmp

      Filesize

      4KB

    • memory/2632-119-0x0000000010000000-0x0000000010067000-memory.dmp

      Filesize

      412KB