squirrelwaffle | 21f6d76a335c8c98e7d27e42f77c8bd167e79a02914cc4c7ea49c3600c48e57a

Analysis

max time kernel
147s
max time network
158s
platform
windows10_x64
resource
win10-en-20211208
submitted
30-01-2022 15:59

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General

Target

21f6d76a335c8c98e7d27e42f77c8bd167e79a02914cc4c7ea49c3600c48e57a.dll
Size

300KB
MD5

a10379c50615514343a479c964554c37
SHA1

c292f39617bee5f26ab76db955851c78d1b26e9e
SHA256

21f6d76a335c8c98e7d27e42f77c8bd167e79a02914cc4c7ea49c3600c48e57a
SHA512

5241b736ba45b0e23f45f62a09a817c940e85d0a62bf4dd2943d9c81fdade4c3038bcc96d4c5f2d2a9ee1797eaf90d4d9541a0d6699950e413fc4ed1411174d9

Score

10^/10

squirrelwaffle downloader suricata

Malware Config

Extracted

Family

squirrelwaffle

http://hutraders.com/0eeUtmJf8O

http://goodartishard.com/0JXDM9kMwx

http://now.byteinsure.com/tnjUrmlhN

http://asceaub.com/Xl8UCLSU

http://colchonesmanzur.com/GjVgBnKaNIC

http://sistemasati.com/0SzGNkx6P

http://maldivehost.net/zLIisQRWZI9

http://lrdgon.org/l7r96tjAJ

http://binnawaz.com.pk/jhSZGWS76C

http://fhstorse.com/vJlgdjJnpIop

Signatures

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

Squirrelwaffle Payload 2 IoCs

resource	yara_rule
behavioral2/memory/2476-117-0x00000000736E0000-0x00000000736F0000-memory.dmp	squirrelwaffle
behavioral2/memory/2476-118-0x00000000736E0000-0x00000000737BF000-memory.dmp	squirrelwaffle

Blocklisted process makes network request 4 IoCs

flow	pid	Process
27	2476	rundll32.exe
34	2476	rundll32.exe
37	2476	rundll32.exe
39	2476	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3240 wrote to memory of 2476	3240	rundll32.exe	69
PID 3240 wrote to memory of 2476	3240	rundll32.exe	69
PID 3240 wrote to memory of 2476	3240	rundll32.exe	69

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\21f6d76a335c8c98e7d27e42f77c8bd167e79a02914cc4c7ea49c3600c48e57a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3240
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\21f6d76a335c8c98e7d27e42f77c8bd167e79a02914cc4c7ea49c3600c48e57a.dll,#1
  2⤵
  - Blocklisted process makes network request
  PID:2476

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2476-115-0x00000000736E0000-0x00000000737BF000-memory.dmp

Filesize
892KB

Download
memory/2476-116-0x0000000004310000-0x0000000004311000-memory.dmp

Filesize
4KB

Download
memory/2476-117-0x00000000736E0000-0x00000000736F0000-memory.dmp

Filesize
64KB

Download
memory/2476-118-0x00000000736E0000-0x00000000737BF000-memory.dmp

Filesize
892KB

Download