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Overview

overview

10

Static

static

10

Run-Malware-1.bat

windows10-2004-x64

10

Run-Malware-1.bat

windows11-21h2-x64

10

f4d2c9470b...59.dll

windows10-2004-x64

10

f4d2c9470b...59.dll

windows11-21h2-x64

10

Analysis

  • max time kernel
    570s
  • max time network
    592s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • resource tags

    arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    22/08/2024, 15:26

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General

  • Target

    f4d2c9470b322af29b9188a3a590cbe85bacb9cc8fcd7c2e94d82271ded3f659.dll

  • Size

    155KB

  • MD5

    7a799f4f9aa63745a75b901a392aff29

  • SHA1

    b9983463f637191ba12c2270ac52a547676a7037

  • SHA256

    f4d2c9470b322af29b9188a3a590cbe85bacb9cc8fcd7c2e94d82271ded3f659

  • SHA512

    e9eeb340dd620256d543ab43d08ccc23b555afa332c744c629fd8f40760f20a24e234955fc8d2e78a150f09028ca7a11650e0da157fff64833f13ce89a208c23

  • SSDEEP

    3072:0lCt2jrijQEjnMUWzsjhVPbuGHUluQj6vkZD4vP5iZWyLr:QCIrijNMv6XPbr0kuNr

Score
10/10
warmcookiebackdoor

Malware Config

Extracted

Family

warmcookie

C2

72.5.43.29

Attributes
  • mutex

    a208f030-25f9-4f41-8b57-6b0b7ecccf29

  • user_agent

    Mozilla / 5.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.0.3705)

Signatures

  • Warmcookie, Badspace

    Warmcookie aka Badspace is a backdoor written in C++.

    backdoorwarmcookie
  • Blocklisted process makes network request 9 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in Windows directory 1 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\f4d2c9470b322af29b9188a3a590cbe85bacb9cc8fcd7c2e94d82271ded3f659.dll
    1⤵
    • Drops file in Windows directory
    PID:1548
  • C:\Windows\system32\rundll32.exe
    C:\Windows\system32\rundll32.exe "C:\ProgramData\Tandem\Updater.dll",Start /u
    1⤵
    • Blocklisted process makes network request
    • Loads dropped DLL
    PID:3152

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\ProgramData\Tandem\Updater.dll
    Filesize

    155KB

    MD5

    7a799f4f9aa63745a75b901a392aff29

    SHA1

    b9983463f637191ba12c2270ac52a547676a7037

    SHA256

    f4d2c9470b322af29b9188a3a590cbe85bacb9cc8fcd7c2e94d82271ded3f659

    SHA512

    e9eeb340dd620256d543ab43d08ccc23b555afa332c744c629fd8f40760f20a24e234955fc8d2e78a150f09028ca7a11650e0da157fff64833f13ce89a208c23

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