Analysis

  • max time kernel
    145s
  • max time network
    148s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    27-09-2021 16:01

General

  • Target

    4aaae627ad4d7e56521555d5bcc8ab7b0c7d740ae480dda84ebd4dd5ff1c529e.dll

  • Size

    215KB

  • MD5

    05354cccb97a79f37567df322951bc07

  • SHA1

    2d32a75f34bb188ce4caf5d7e1634df7236164fa

  • SHA256

    4aaae627ad4d7e56521555d5bcc8ab7b0c7d740ae480dda84ebd4dd5ff1c529e

  • SHA512

    970706f507780dd808a3c6faa962c71a7f18819ff8aacc330b49644c3faaea5ad991c91a2383558618a3b2881daa683d3024dd4ff794647d8e2031dbfe080e54

Malware Config

Extracted

Family

squirrelwaffle

C2

spiritofprespa.com/9783Tci2SGF6

amjsys.com/RIZszf8vR

hrms.prodigygroupindia.com/SKyufGZV

centralfloridaasphalt.com/GCN0FChS

jhehosting.com/rUuKheB7

shoeclearanceoutlet.co.uk/46awDTJjI4l

kmslogistik.com/aS1mjTkJIy

bartek-lenart.pl/1bWJ57V9vx

voip.voipcallhub.com/ZVmfdGHs4T

mercyfoundationcio.org/XF9aQrXnakeG

key4net.com/a8A2kcc1J

chaturanga.groopy.com/mxN3lxZoVApc

voipcallhub.com/ilGht5r26

ems.prodigygroupindia.com/v5RvVJTz

novamarketing.com.pk/k8l36uus

lenartsa.webd.pro/fz16DjmKmHtl

lead.jhinfotech.co/YERjiAMaupaz

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

    211.107.25.121

    109.70.100.25

    185.67.82.114

    207.102.138.19

    204.101.161.14

    193.128.108.251

    111.7.100.17

Signatures

  • SquirrelWaffle is a simple downloader written in C++.

    SquirrelWaffle.

  • suricata: ET MALWARE Possible SQUIRRELWAFFLE Server Response

    suricata: ET MALWARE Possible SQUIRRELWAFFLE Server Response

  • suricata: ET MALWARE SQUIRRELWAFFLE Loader Activity (POST)

    suricata: ET MALWARE SQUIRRELWAFFLE Loader Activity (POST)

  • suricata: ET MALWARE SQUIRRELWAFFLE Server Response

    suricata: ET MALWARE SQUIRRELWAFFLE Server Response

  • squirrelwaffle 2 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\4aaae627ad4d7e56521555d5bcc8ab7b0c7d740ae480dda84ebd4dd5ff1c529e.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4088
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\4aaae627ad4d7e56521555d5bcc8ab7b0c7d740ae480dda84ebd4dd5ff1c529e.dll,#1
      2⤵
      • Blocklisted process makes network request
      PID:4084

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/4084-117-0x0000000073E20000-0x0000000073E6E000-memory.dmp

    Filesize

    312KB

  • memory/4084-116-0x0000000073E20000-0x0000000073E31000-memory.dmp

    Filesize

    68KB

  • memory/4084-118-0x0000000003550000-0x0000000003551000-memory.dmp

    Filesize

    4KB