Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    21-01-2022 23:40

General

  • Target

    750e49b36c6a97b825dbffee96a59ca8971c717bbeea96ce1794c8e843f13bb9.dll

  • Size

    269KB

  • MD5

    77be8af512677a5b84d8432161623598

  • SHA1

    7e56869edab0d52d9938478e9ffae8bc4a90d291

  • SHA256

    750e49b36c6a97b825dbffee96a59ca8971c717bbeea96ce1794c8e843f13bb9

  • SHA512

    6cab82e26f71263505d09ee1b402cc0d0b61dc4410fc2b812d9031fe823040d6342f6c195345be8b644ced04036c7327ad4016e74a203fed8c463b04ec8fe375

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.

  • Squirrelwaffle Payload 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\750e49b36c6a97b825dbffee96a59ca8971c717bbeea96ce1794c8e843f13bb9.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1172
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\750e49b36c6a97b825dbffee96a59ca8971c717bbeea96ce1794c8e843f13bb9.dll,#1
      2⤵
        PID:1404

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1404-54-0x0000000074F01000-0x0000000074F03000-memory.dmp

      Filesize

      8KB

    • memory/1404-55-0x0000000000110000-0x000000000012E000-memory.dmp

      Filesize

      120KB

    • memory/1404-56-0x0000000010000000-0x0000000010044000-memory.dmp

      Filesize

      272KB