Resubmissions

01-11-2021 12:31

211101-pp5r3ahha4 10

31-10-2021 09:03

211031-k1bwxacfaq 10

14-10-2021 01:44

211014-b6aflafeg4 10

Analysis

  • max time kernel
    3856s
  • max time network
    3861s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    31-10-2021 09:03

General

  • Target

    6402b33d729c8bb44881747a8f397f4aec408bf5e18b9af6fd86cdfa3f96323b.dll

  • Size

    235KB

  • MD5

    8e37795097400f6a609525749d154cd0

  • SHA1

    8e1502c2aa56e6a8c7c1d2c75f3946332a5bb8c0

  • SHA256

    6402b33d729c8bb44881747a8f397f4aec408bf5e18b9af6fd86cdfa3f96323b

  • SHA512

    c7453b8f50e557a5990ac3708931845eeb6dc2992cd907d5534733524f523226d8d013be6e09bb2b5210f6f5ad2303625f8998a5111d3b0925bb4228b6c9152a

Malware Config

Extracted

Family

squirrelwaffle

C2

http://acdlimited.com/2u6aW9Pfe

http://jornaldasoficinas.com/ZF8GKIGVDupL

http://orldofjain.com/lMsTA7tSYpe

http://altayaralsudani.net/SSUsPgb7PHgC

http://hoteloaktree.com/QthLWsZsVgb

http://aterwellnessinc.com/U7D0sswwp

http://sirifinco.com/Urbhq9wO50j

http://ordpress17.com/5WG6Z62sKWo

http://mohsinkhanfoundation.com/pcQLeLMbur

http://lendbiz.vn/xj3BhHtMbf

http://geosever.rs/ObHP1CHt

http://nuevainfotech.com/xCNyTjzkoe

http://dadabhoy.pk/m6rQE94U

http://111

http://sjgrand.lk/zvMYuQqEZj

http://erogholding.com/GFM1QcCFk

http://armordetailing.rs/lgfrZb4Re6WO

http://lefrenchwineclub.com/eRUGdDox

Signatures

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

    SquirrelWaffle.

  • suricata: ET MALWARE SQUIRRELWAFFLE Loader Activity (POST)

    suricata: ET MALWARE SQUIRRELWAFFLE Loader Activity (POST)

  • Squirrelwaffle Payload 2 IoCs
  • Blocklisted process makes network request 64 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\6402b33d729c8bb44881747a8f397f4aec408bf5e18b9af6fd86cdfa3f96323b.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3592
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\6402b33d729c8bb44881747a8f397f4aec408bf5e18b9af6fd86cdfa3f96323b.dll,#1
      2⤵
      • Blocklisted process makes network request
      PID:3292

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/3292-118-0x0000000000000000-mapping.dmp
  • memory/3292-119-0x0000000010000000-0x00000000100D6000-memory.dmp
    Filesize

    856KB

  • memory/3292-120-0x0000000010000000-0x0000000010010000-memory.dmp
    Filesize

    64KB

  • memory/3292-121-0x0000000010000000-0x00000000100D6000-memory.dmp
    Filesize

    856KB

  • memory/3292-122-0x00000000033F0000-0x000000000353A000-memory.dmp
    Filesize

    1.3MB