Analysis

  • max time kernel
    142s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    30/01/2022, 15:30

General

  • Target
    37168c041e711667aa22ab9a29a2f8251e9c6ff7d9e2ae7f14dc0cd08f51cc67.dll
  • Size 261KB
  • Sample220130-sxv5dadbcn
  • SHA256 37168c041e711667aa22ab9a29a2f8251e9c6ff7d9e2ae7f14dc0cd08f51cc67
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • squirrelwaffle

C2
  • http://deanandwilconstruction.com/UXEvfuIlhws

  • http://arimeto.lv/Nm70oAfwB

  • http://gitamschool.com/oZbs0Oqw7uv

  • http://eresourcesmoneymarket.com/JbVwdgaV6l

  • http://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.

  • suricata: ET MALWARE SQUIRRELWAFFLE Loader Activity (POST)

    suricata: ET MALWARE SQUIRRELWAFFLE Loader Activity (POST)

  • Squirrelwaffle Payload 1 IoCs
  • Blocklisted process makes network request 5 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\37168c041e711667aa22ab9a29a2f8251e9c6ff7d9e2ae7f14dc0cd08f51cc67.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:628
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\37168c041e711667aa22ab9a29a2f8251e9c6ff7d9e2ae7f14dc0cd08f51cc67.dll,#1
      2⤵
      • Blocklisted process makes network request
      PID:3972

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/3972-116-0x0000000010000000-0x0000000010043000-memory.dmp

        memory/3972-115-0x0000000000F30000-0x0000000000F4D000-memory.dmp