Analysis

  • max time kernel
    1603s
  • max time network
    1590s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    21-09-2021 18:48

General

  • Target

    64c044cb3ec26babdd17107b2aa6ded60b22473c4e2943e1fcc03df8bc2e0edb.dll

  • Size

    439KB

  • MD5

    22aef4558853a72dd07ff9513a6b9dbf

  • SHA1

    52a914b43dfa44910ab649be77a57db631d038ee

  • SHA256

    64c044cb3ec26babdd17107b2aa6ded60b22473c4e2943e1fcc03df8bc2e0edb

  • SHA512

    550f72f4d6186869893b2dc6536b3ce9bcb7843b0db726a1d9fb118291b1e96d642dfb57369b85ff58c41b38d6c40f6853d1da752f589aa419cb1f4d35381be4

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 2 IoCs

    Squirrelwaffle Payload

  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\64c044cb3ec26babdd17107b2aa6ded60b22473c4e2943e1fcc03df8bc2e0edb.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1432
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\64c044cb3ec26babdd17107b2aa6ded60b22473c4e2943e1fcc03df8bc2e0edb.dll,#1
      2⤵
        PID:1428

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1428-54-0x00000000768C1000-0x00000000768C3000-memory.dmp

      Filesize

      8KB

    • memory/1428-55-0x00000000000B0000-0x00000000000B1000-memory.dmp

      Filesize

      4KB

    • memory/1428-57-0x0000000000200000-0x0000000000212000-memory.dmp

      Filesize

      72KB

    • memory/1428-56-0x00000000001C0000-0x00000000001D4000-memory.dmp

      Filesize

      80KB