Analysis

  • max time kernel
    145s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    24-09-2021 20:40

General

  • Target

    test2.test.dll

  • Size

    262KB

  • MD5

    20c12326b9fcad0dbed37236680d0be2

  • SHA1

    57bc41de276fbb3a337734977b7cefdb34a8e04b

  • SHA256

    7e640487aee9ff0b3082e36046e3f59302892ca3210bb40732cee1f3be77c0ad

  • SHA512

    1672da8ece433f9b17ce40c1762886f8849f15ec3c80fa4f1735e69d25cad1b3c5ad29b127f748dfb879e7e5a1d4f2942b84b2951c09c0b2377cffe53c67b524

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

  • 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\test2.test.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:580
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\test2.test.dll,#1
      2⤵
      • Blocklisted process makes network request
      PID:652

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/652-116-0x0000000010000000-0x0000000010044000-memory.dmp

    Filesize

    272KB

  • memory/652-115-0x00000000007C0000-0x000000000090A000-memory.dmp

    Filesize

    1.3MB