Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    23-09-2021 11:09

General

  • Target

    test1.test.dll

  • Size

    262KB

  • MD5

    67a00220a226c6039ec0126886460925

  • SHA1

    5185af9254f69a527992abd7735837b059025192

  • SHA256

    c34c4daf99203c404268764478345e7153cd9a01dcdcece04a9f200e35dd030c

  • SHA512

    6809efe4f1922a5c805396e1e8011f1179f6232fdd4a4db583d0a61de0ca15d18c56bc52d9752e62adbede87274be5adc2ec501980523ee5aa6fcfd45e3b9278

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\test1.test.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2060
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\test1.test.dll,#1
      2⤵
      • Blocklisted process makes network request
      PID:2176

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2176-116-0x0000000000600000-0x000000000074A000-memory.dmp

    Filesize

    1.3MB

  • memory/2176-117-0x0000000010000000-0x0000000010044000-memory.dmp

    Filesize

    272KB