squirrelwaffle | 653e066782817e5c09ca75786c3740b391dc7bbd8c76f38748c0d5e684b4292c

Resubmissions

21-10-2021 20:58

211021-zskw6sagb2 10

21-10-2021 18:23

211021-w1rg5sbeek 10

Analysis

max time kernel
126s
max time network
140s
platform
windows10_x64
resource
win10-en-20210920
submitted
21-10-2021 18:23

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General

Target

test1.test.dll
Size

532KB
MD5

510b2569ff4ed686227d4fafd4c04dfc
SHA1

a311db42d9b019b7f1fa1337fb88772fad9175d2
SHA256

653e066782817e5c09ca75786c3740b391dc7bbd8c76f38748c0d5e684b4292c
SHA512

29d0fcece323c7c25e2126f2636d83d267d63f43095333f9346822d089a36b3bcf46bbd718483f2a51f2d183f3d2590b5d88a4d2148438b986af2a79b9b98061

Score

10^/10

squirrelwaffle downloader suricata

Malware Config

Extracted

Family

squirrelwaffle

http://bostoncarservice.us/ttv8fU9U19

http://payparq-cloud-3513-01.com/bON7gU8BpvAU

http://luckysoxs.com/3FbCi7ej09p

http://payparq-cloud-8799-02.com/0yXFxtYs0Z

http://rjmholding.com/JKu3ByhTE

http://centroparquekrahmer.cl/iXIdCvMk5TD7

http://capaxion.cl/xigRVxm0X

http://bimcrea.cl/CRUKqDjn

http://payparq-cloud-8899-00.com/yeoXYV97

http://18pixels.org/mDZYHjiJi

http://e2eprocess.cl/EUsDZTqM

http://payparq.com/1DT7hrizVB

http://sammlerstore.pe/KKFuUiXVI5

Signatures

SquirrelWaffle is a simple downloader written in C++.
SquirrelWaffle.
downloader squirrelwaffle
suricata: ET MALWARE Possible SQUIRRELWAFFLE Server Response
suricata: ET MALWARE Possible SQUIRRELWAFFLE Server Response
suricata
suricata: ET MALWARE SQUIRRELWAFFLE Loader Activity (POST)
suricata: ET MALWARE SQUIRRELWAFFLE Loader Activity (POST)
suricata
suricata: ET MALWARE SQUIRRELWAFFLE Server Response
suricata: ET MALWARE SQUIRRELWAFFLE Server Response
suricata

Squirrelwaffle Payload 2 IoCs

resource	yara_rule
behavioral2/memory/3720-117-0x0000000073B80000-0x0000000073B90000-memory.dmp	squirrelwaffle
behavioral2/memory/3720-118-0x0000000073B80000-0x0000000074510000-memory.dmp	squirrelwaffle

Blocklisted process makes network request 4 IoCs

flow	pid	Process
25	3720	rundll32.exe
29	3720	rundll32.exe
30	3720	rundll32.exe
31	3720	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3364 wrote to memory of 3720	3364	rundll32.exe	69
PID 3364 wrote to memory of 3720	3364	rundll32.exe	69
PID 3364 wrote to memory of 3720	3364	rundll32.exe	69

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\test1.test.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3364
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\test1.test.dll,#1
  2⤵
  - Blocklisted process makes network request
  PID:3720

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/3720-116-0x0000000073B80000-0x0000000074510000-memory.dmp

Filesize
9.6MB

Download
memory/3720-117-0x0000000073B80000-0x0000000073B90000-memory.dmp

Filesize
64KB

Download
memory/3720-118-0x0000000073B80000-0x0000000074510000-memory.dmp

Filesize
9.6MB

Download
memory/3720-119-0x0000000000680000-0x0000000000681000-memory.dmp

Filesize
4KB

Download