Analysis

  • max time kernel
    129s
  • max time network
    103s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    21-09-2021 20:31

General

  • Target

    sot3.exe.dll

  • Size

    269KB

  • MD5

    af15534595048cb69e8d05948f1665ae

  • SHA1

    de592318fe35c6f41625d54e585c69b7917f5645

  • SHA256

    34d8b1b9cf7dc8df7ad1920bc8c36e8270688d641f0c91e1ac8e533192f064fb

  • SHA512

    a7f058e20ee3d0bcaef3424e60ea2994a7b94bfc7aa983424c3d923129216c00ab6a0935d6db58c67b44f3eb2e93a6bea6c3a356a02369ef2bb5179aba8146f7

Malware Config

Extracted

Family

squirrelwaffle

C2

deanandwilconstruction.com/UXEvfuIlhws

arimeto.lv/Nm70oAfwB

gitamschool.com/oZbs0Oqw7uv

eresourcesmoneymarket.com/JbVwdgaV6l

flyershipmanager.com/SGAsORYsywt

Attributes
  • blocklist

    94.46.179.80

    206.189.205.251

    88.242.66.45

    85.75.110.214

    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

    88.69.16.230

    95.223.77.160

    99.234.62.23

    2.206.105.223

    84.222.8.201

    89.183.239.142

    5.146.132.101

    77.7.60.154

    45.41.106.122

    45.74.72.13

    74.58.152.123

    88.87.68.197

    109.70.100.25

    185.67.82.114

    207.102.138.19

    204.101.161.14

    193.128.108.251

    111.7.100.17

    111.7.100.16

Signatures

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

    SquirrelWaffle.

  • squirrelwaffle 1 IoCs

    Squirrelwaffle Payload

  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\sot3.exe.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1936
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\sot3.exe.dll,#1
      2⤵
        PID:1928

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1928-60-0x0000000000000000-mapping.dmp

    • memory/1928-61-0x0000000075201000-0x0000000075203000-memory.dmp

      Filesize

      8KB

    • memory/1928-62-0x00000000001D0000-0x00000000001ED000-memory.dmp

      Filesize

      116KB

    • memory/1928-63-0x0000000010000000-0x0000000010043000-memory.dmp

      Filesize

      268KB